CN106911150A - A kind of double cell energy conserving system - Google Patents
A kind of double cell energy conserving system Download PDFInfo
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- CN106911150A CN106911150A CN201510968861.3A CN201510968861A CN106911150A CN 106911150 A CN106911150 A CN 106911150A CN 201510968861 A CN201510968861 A CN 201510968861A CN 106911150 A CN106911150 A CN 106911150A
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- 238000003860 storage Methods 0.000 claims abstract description 32
- 230000005611 electricity Effects 0.000 claims description 73
- 239000007858 starting material Substances 0.000 claims description 65
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 32
- 230000001172 regenerating effect Effects 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 17
- 238000004146 energy storage Methods 0.000 claims description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 14
- 229910001416 lithium ion Inorganic materials 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 13
- 239000000295 fuel oil Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 230000009977 dual effect Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 5
- 238000011156 evaluation Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 230000008450 motivation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- KZNMRPQBBZBTSW-UHFFFAOYSA-N [Au]=O Chemical compound [Au]=O KZNMRPQBBZBTSW-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H02J7/0072—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of double cell energy conserving system, the double cell energy conserving system includes：First battery pack, the battery pack is mainly used in storage energy, possesses larger storage capacity；Second battery pack, second battery pack is in parallel with first battery pack, and second battery pack can be rapidly charged to store the electric energy from energy recycle device, and being capable of the repid discharge high-power output of offer；And the current control device between the first battery pack and the second battery pack is arranged in, the current control device causes the first battery pack with the separated of the second battery pack, closure or one-way conduction in predefined conditions.
Description
Technical field
The present invention relates to Energy Recovery Technology, more specifically, it is related to a kind of double cell energy conserving system
And use the power-economizing method of the system.
Background technology
In current society, environmental protection, the demand of energy saving is growing.Particularly handing over
In logical instrument, in braking procedure or in the course of work of engine, there are many energy to have
Effect is utilized, and causes the waste of the energy.For example in vehicular field, in order to improve vehicle effect
Rate, reduces oil consumption, improves fuel economy, and it is various that current major automobile vendors are devoted to research
The new automobile technology of various kinds.Wherein, in car deceleration, reclaim braking energy and store in electricity
Chi Zhong, uses with supply in future vehicular electrical appliance equipment, is a kind of method of important reduction oil consumption,
All kinds of new energy vehicles are widely used in, such as on pure electric vehicle and hybrid electric vehicle.
Because the modern means of communication have been increasingly being equipped with various electric equipments, cause overall power consumption
Amount is also being stepped up, and the pressure of electric power system is also increasing.There must be enough electric energy storages
To meet numerous electrical equipment demands, generally conventional electrical equipment under different operating modes, to energy
Consumption be very big.For example in the car, the electric energy of automobile-used electrical appliance is essentially all from fuel oil
Generated electricity by the acting of engine and obtained, if reclaiming electric energy during braking, the energy of regeneration is available for hair
The electronic units such as motivation annex, headlight, air-conditioning, sound equipment, instrument are used.Frequently accelerating and subtracting
Under the driving conditions of speed, this system can increase substantially fuel economy.
For example, in vehicle, it is typically provided with the battery system of one or more battery composition
System, the starter of engine is started to be driven in vehicle launch, in the case of generator operation,
Storage energy, and in the case where mobile generator is stopped, output current drives the electricity on car
Gas is loaded.Generally the electrical load on car includes security system, engine management system, joy
Music system, illuminator, air-conditioning system, rain brush etc..Known engines most of at present drive
On dynamic vehicle, use lead-acid battery as battery system to drive automobile-used load and starting to start
Machine.And engine output is generally needed in vehicle travel process, generator is driven with to whole
Car load supplying and give lead-acid battery charge.Conventional lead-acid battery is larger due to internal resistance, can be with filling
Electrical power is relatively low, cause for slow down energy-recuperation system when recoverable energy it is less, do not reach pre-
The energy-saving effect of phase.
Accordingly, it would be desirable to a kind of effective energy-recuperation system, can effectively reclaim in a vehicle
The energy being wasted.
The content of the invention
In order to solve the above problems, it is proposed that a kind of double cell energy conserving system, including：First battery
Group, the battery pack is mainly used in storing energy, possesses larger storage capacity；Second battery pack, should
Second battery pack is in parallel with first battery pack, second battery pack can be rapidly charged with
Electric energy of the storage from energy conversion device；And be arranged in the first battery pack and the second battery pack it
Between current control device, the current control device can cause the first battery pack in predefined conditions
With the separated of the second battery pack, closure or one-way conduction.
Current control device can make when needing the first battery and the second battery each to work independently
Two battery packs it is separated；When needing dual battery system to cooperate, two can be caused
Closure or electric current one-way conduction between battery pack.
According to the embodiment of the present invention, the first battery pack and/or the second battery pack can pass through
Energy conversion device is charged.
Preferably, the energy conversion device voltage is controllable.
Output voltage to the energy conversion device can be controlled in such a way：Needing
In the case of being charged, energy conversion device output voltage is improved, improved to the described second electricity
The charge power of pond group and/or the first battery pack；Under non-charged state, energy conversion device is reduced
Output voltage, reduce/stop energy conversion device generated energy, battery pack is discharged reclaimed electric energy.
In one embodiment, when energy conversion device charges, the current control device makes
The first battery pack is obtained with the separated of the second battery pack, closure or one-way conduction.Alternatively, exist
When energy conversion device charges, the current control device causes the first battery pack and the second battery pack
Between close, it is common to charge.Preferably, in first battery pack and the second battery pack
When the charging current or voltage that individual battery pack is applied in reach the degree that can not be born, the electric current
Control device causes the first battery pack separated with the second battery pack or so that electric current can only reach from this
To being unable to the battery pack of Bearing degree to another battery pack one-way flow.
A battery pack or two battery packs in first battery pack and the second battery pack can be to one
Individual large current load is powered.When large current load works, can be to the battery pack powered to it
Electric current and voltage impact.
Optionally, current control device can cause that the first battery pack is separated with the second battery pack
Or cause that electric current can only be by the second battery pack to the first battery pack one-way flow, in the first battery
There was only the second battery pack for the large current load is powered in group and the second battery pack.First battery
The electric current and voltage of group are not influenceed by the large current load.
Alternatively, the current control device can be caused between the first battery pack and the second battery pack
Disconnect or cause that electric current can only be by the first battery pack to the second battery pack one-way flow, first
There was only the first battery for the large current load is powered in battery pack and the second battery pack.Second electricity
The electric current and voltage of pond group are not influenceed by the large current load.
It is further preferred that the battery of the second battery pack can be to reclaim rechargeable electrical energy for big multiplying power
Energy storage device, with preferable power characteristic.
Preferably, the battery of second battery pack be high-performance lead-acid battery, lithium ion battery,
Super capacitor, or the superior energy storage device of other big multiplying power charging performances.
The battery of the first battery pack can be the energy storage device for being mainly used in storage energy, with preferable
Energy response；Preferably, the first battery is lead-acid battery, or lithium ion battery, Huo Zheqi
He can be used for the energy storage device of a large amount of storage energies；
Preferably, the energy conserving system is according to the first battery pack and the state of the second battery pack, including
One or more in voltage, SOC, temperature, and the factor such as vehicle working condition are controlled/set
Meter current control device, and/or control energy conversion device.
In energy conserving system of the invention, battery management system can also be included, the battery
Management system is managed to battery, the management to battery include to the dump energy of battery,
Can with charge-discharge electric power situation, utilisable energy and can be in storage energy situation one or more enter
Row check and evaluation.
For example, current control device is the one kind in following form：One-way conduction element；It is controllable to open
Close；One-way conduction element is while gate-controlled switch in parallel；Or close always.
Preferably, the one-way conduction element be diode, diode array or other can be single
To the electronic device of conducting.
Preferably, the gate-controlled switch be relay, IGBT, MOSFET or other can be used to control
The component of connecting and disconnecting of the circuit processed.
Present invention also offers a kind of vehicle with engine, the vehicle equips foregoing double cell
Energy conserving system, wherein, first battery pack is powered for the starter of vehicle；Normal vehicle operation
When then it is automobile-used load be driven by the second battery pack, the first battery pack and generator, drive
The allocation proportion of dynamic power relies on the state/connected mode of each battery pack, controls to fill by control electric current
Put and be adjusted with generator output voltage；Energy conversion device in the vehicle is generator,
The generator reclaimed in vehicle deceleration deceleration energy change into electric energy to second battery pack and
/ or the first battery pack charged.Preferably, the generator is the controllable generator of output voltage.
Particularly, in vehicle deceleration, output voltage is improved, with more recovery deceleration energy, to institute
State the second battery pack and/or the first battery pack is charged.Under the non-deceleration regime of vehicle, reduce defeated
Go out voltage, reduce generator power output, battery pack is discharged the electricity for reclaiming, so as to save fuel oil.
Or, the state control generator also according to battery when normal vehicle operation is electric to first
Pond group and/or the second battery pack carry out mending electricity, drive vehicle load.In the charge state main fills
Electric current is reclaimed by the second battery pack, while the first battery pack can also reclaim certain electricity.
Large current load in the vehicle is starter, and the starter is started in vehicle launch
Engine is, it is necessary to first battery pack output very high current；Preferably, the current control
Device causes the separated of two battery packs when starter works or causes that electric current can only be by the
One battery pack is to the second battery pack one-way flow, so that the first battery is with all strength for starter is powered,
The using effect of the load that the second battery voltage and the second battery pack powered is not influenceed simultaneously.
Present invention also offers vehicle of the another kind with engine, the vehicle is equipped with foregoing
Double cell energy conserving system, wherein, second battery pack is powered for the starter of vehicle；Wherein,
Automobile-used load is entered by the second battery pack, the first battery pack and generator when normal vehicle operation
Row drives, and the allocation proportion of driving power relies on the state/connected mode of each battery pack, by control
Current control device and generator output voltage are adjusted；Energy conversion device in the vehicle
It is generator, the generator reclaims deceleration energy in vehicle deceleration and changes into electric energy to described
Two battery packs and/or the first battery pack are charged；Preferably, the generator for output voltage can
The generator of control.Preferably, in vehicle deceleration, the controllable generator of the output voltage is improved
Output voltage, with more recovery deceleration energy, to second battery pack and/or the first battery pack
Charged；Under the non-deceleration regime of vehicle, output voltage is reduced, reduces generator power output,
Battery pack is set to discharge the electricity for reclaiming, so as to save fuel oil；Or situations such as normal vehicle operation
Under also according to battery state control generator the first battery pack and/or the second battery pack are mended
Electricity, drives vehicle load；Main charging current in the charge state is reclaimed by the second battery pack,
The first battery pack can also reclaim certain electricity simultaneously；Large current load in the vehicle is
Motivation, the starter starts engine in vehicle launch, it is necessary to first battery pack is exported
Unusual high current；Preferably, the current control device causes two batteries when starter works
Group separated or cause electric current can only by the first battery pack to the second battery pack one-way flow,
So that the first battery is powered for starter with all strength, at the same do not influence the second battery voltage and
The using effect of the load that the second battery pack is powered.
Additionally, present invention also offers a kind of double cell power-economizing method, including：
Using the first battery pack come storage energy；Second battery pack is set, second battery pack and institute
State the first battery pack in parallel, second battery pack is configured to mainly be rapidly charged to store
From the electric energy of energy recycle device, and being capable of the repid discharge high-power output of offer；And
Current control device is set between one battery pack and the second battery pack, the current control device is predetermined
Under the conditions of cause separated, the closure of the first battery pack and the second battery pack.
Preferably, in power-economizing method of the invention, recovered energy in energy conversion device and turned
When being changed to electric energy, quickly charged to the second battery pack and reclaim electric energy, while to the first battery pack
Charge and reclaim electric energy, control system distributes two electricity according to the state control electric current control device of battery
The charge power of pond group, protects battery and realizes maximized energy regenerating；The energy of recovery will be used
In vehicle electric load, it is preferred that by controlling energy conversion device output voltage, control is reclaimed
The power of electric energy and moment：Improving output voltage is used to increase regenerative power, and reducing voltage is used to subtract
Few regenerative power；In engine start, the battery of current control device reasonable distribution first and second
The power output of group, it is ensured that the power demand of startup；Avoid the confession of other loads of vehicle as possible simultaneously
Piezoelectric voltage changes excessive or brownout.
It is an object of the invention to propose a kind of double cell energy conserving system, particularly, can be used for automobile-used
Deceleration energy-recuperation system, by the dual battery system being connected in parallel, including high-power can reclaim
The battery of deceleration energy and can store compared with multi-energy be used for starter is driven to start the electricity of engine
Pond, on the one hand can control controllable electric generator to reclaim deceleration energy in vehicle deceleration, and for car
With electrical equipment, so as to improve fuel economy, on the other hand can store compared with multi-energy, rise
Starter is driven when dynamic, automobile-used use electric loading can be driven in normal vehicle operation in addition, or
Charged at a slow speed by generator.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of present disclosure, this Shen is described with reference to the accompanying drawings
Specific embodiment please.
The present invention is further detailed with reference to the accompanying drawings and examples.In the accompanying drawings：
Fig. 1 shows a signal for implementation method of double cell energy conserving system of the invention
Figure；
Fig. 2 shows showing for another implementation method of double cell energy conserving system of the invention
It is intended to；
Fig. 3 shows showing for the further embodiment of double cell energy conserving system of the invention
It is intended to, wherein the one-way conduction element in the current control device in the system is also parallel with controllable opening
Close；
Fig. 4 shows another specific embodiment of double cell energy conserving system of the invention
Schematic diagram, wherein include gate-controlled switch in the current control device in the system；
Fig. 5 shows an implementation method for modification of the double cell energy conserving system shown in Fig. 4
The gate-controlled switch in current control device in schematic diagram, the wherein system is closed always；
The implementation method that Fig. 6 shows double cell energy conserving system of the invention is used for car
Schematic diagram, wherein the starter as heavy traffic load and the generating as energy recycle device
Machine is located at current control device both sides respectively, wherein unidirectional in the current control device in the system
Breakover element is also parallel with gate-controlled switch, and one-way conduction element is enabled current to from the second battery pack
To the first battery pack one-way flow.
The further embodiment that Fig. 7 shows double cell energy conserving system of the invention is used for
The schematic diagram of vehicle, wherein the starter as heavy traffic load and the hair as energy recycle device
Motor is located at current control device both sides, the wherein list in the current control device in the system respectively
Gate-controlled switch is also parallel with to breakover element, one-way conduction element is enabled current to from the first battery
Group is to the second battery pack one-way flow.And
The further embodiment that Fig. 8 shows double cell energy conserving system of the invention is used for
The schematic diagram of vehicle, wherein the starter as heavy traffic load and the hair as energy recycle device
Motor is located at current control device both sides respectively, and other automobile-used loads are all directly driven by battery one,
And include gate-controlled switch in the current control device in the system.And the current control in the system
Gate-controlled switch is included in device.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.It is described in this disclosure
Embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
Embodiment, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to protection scope of the present invention.Protection scope of the present invention is not received
The limitation of specific embodiment described below.
In disclosure below, it is to be understood that shown implementation method and example are only
Only it is exemplary.Unless there is special explanation herein, what is be previously mentioned in present disclosure is each
Plant term and wording and the ordinary skill people related to element, part, equipment, method
The definition that is commonly understood by of member be meant that it is consistent.It should be noted that shown in accompanying drawing
The shape design of various units, circuit, element and component etc. and position are only to show
Meaning property, it should be appreciated that each element shown in figure can be adopted according to actual conditions in practice
Different forms and form are taken, this is without departing from spirit of the invention and purport.
It will be appreciated by persons skilled in the art that battery pack mentioned herein can include one
Individual or more battery cell, according to different use environments, the battery in battery pack can be lead
Sour battery, lithium battery, alkaline battery, Ni-MH battery, energy-storage battery, fuel cell, solar energy
One or more in battery.
The present invention proposes a kind of double cell energy conserving system, and the energy conserving system can be used for the vehicles
In, or other need store energy equipment in, such as dynamic power machine or machining equipment,
Or during other can store the equipment of unnecessary energy using the system according to the present invention.
Preferably, double cell energy-saving equipment of the invention can be used in vehicle, particularly use
In the vehicle with engine such as land vehicle or amtrack etc..Preferably, according to this
The double cell energy conserving system of invention is used in the vehicle with internal combustion engine or motor, such as four-wheel
Car, tricycle, in two wheeler, or wheelbarrow.
The present invention proposes a kind of double cell energy conserving system, including：First battery pack, the battery pack
It is mainly used in storing energy, possesses larger storage capacity；Second battery pack, second battery pack with
First battery pack is in parallel, and second battery pack can be rapidly charged to store from energy
The electric energy of conversion equipment；And it is arranged in the current control between the first battery pack and the second battery pack
Device, the current control device can cause the first battery pack and the second battery pack in predefined conditions
It is separated, closure or one-way conduction.
Current control device can make when needing the first battery and the second battery each to work independently
Two battery packs it is separated；When needing dual battery system to cooperate, two can be caused
Closure or electric current one-way conduction between battery pack.
According to the embodiment of the present invention, the first battery pack and/or the second battery pack can pass through
Energy conversion device is charged.
Preferably, the energy conversion device voltage is controllable.
Output voltage to the energy conversion device can be controlled in such a way：Needing
In the case of being charged, energy conversion device output voltage is improved, improved to the described second electricity
The charge power of pond group and/or the first battery pack；Under non-charged state, energy conversion device is reduced
Output voltage, reduce/stop energy conversion device generated energy, battery pack is discharged reclaimed electric energy.
In one embodiment, when energy conversion device charges, the current control device makes
The first battery pack is obtained with the separated of the second battery pack, closure or one-way conduction.Alternatively, exist
When energy conversion device charges, the current control device causes the first battery pack and the second battery pack
Between close, it is common to charge.Preferably, in first battery pack and the second battery pack
When the charging current or voltage that individual battery pack is applied in reach the degree that can not be born, the electric current
Control device causes the first battery pack separated with the second battery pack or so that electric current can only reach from this
To being unable to the battery pack of Bearing degree to another battery pack one-way flow.
A battery pack or two battery packs in first battery pack and the second battery pack can be to one
Individual large current load is powered.When large current load works, can be to the battery pack powered to it
Electric current and voltage impact.
Optionally, current control device can cause that the first battery pack is separated with the second battery pack
Or cause that electric current can only be by the second battery pack to the first battery pack one-way flow, in the first battery
There was only the second battery pack for the large current load is powered in group and the second battery pack.First battery
The electric current and voltage of group are not influenceed by the large current load.
Alternatively, the current control device can be caused between the first battery pack and the second battery pack
Disconnect or cause that electric current can only be by the first battery pack to the second battery pack one-way flow, first
There was only the first battery for the large current load is powered in battery pack and the second battery pack.Second electricity
The electric current and voltage of pond group are not influenceed by the large current load.
It is further preferred that the battery of the second battery pack can be to reclaim rechargeable electrical energy for big multiplying power
Energy storage device, with preferable power characteristic.
Preferably, the battery of second battery pack be high-performance lead-acid battery, lithium ion battery,
Super capacitor, or the superior energy storage device of other big multiplying power charging performances.
The battery of the first battery pack can be the energy storage device for being mainly used in storage energy, with preferable
Energy response；Preferably, the first battery is lead-acid battery, or lithium ion battery, Huo Zheqi
He can be used for the energy storage device of a large amount of storage energies；
Preferably, the energy conserving system is according to the first battery pack and the state of the second battery pack, including
One or more in voltage, SOC, temperature, and the factor such as vehicle working condition are controlled/set
Meter current control device, and/or control energy conversion device.
In energy conserving system of the invention, battery management system can also be included, the battery
Management system is managed to battery, the management to battery include to the dump energy of battery,
Can with charge-discharge electric power situation, utilisable energy and can be in storage energy situation one or more enter
Row check and evaluation.
For example, current control device is the one kind in following form：One-way conduction element；It is controllable to open
Close；One-way conduction element is while gate-controlled switch in parallel；Or close always.
Preferably, the one-way conduction element be diode, diode array or other can be single
To the electronic device of conducting.
Preferably, the gate-controlled switch be relay, IGBT, MOSFET or other can be used to control
The component of connecting and disconnecting of the circuit processed.
Below, some embodiments of the present invention will be illustrated with reference to accompanying drawing.
Fig. 1 shows double cell energy conserving system of the invention (hereinafter referred to as energy conserving system)
100 schematic diagram for implementation method, this view show that double cell energy conserving system of the invention
Most basic structure.As illustrated, energy conserving system 100 can include the first battery pack 110, should
Battery pack is mainly used in storage energy, possesses larger storage capacity, there is provided the standby electricity of larger capacity
Pond, so as to provide the standby electricity of abundance；Second battery pack 120, second battery pack can be with institute
State the first battery pack in parallel, second battery pack can be rapidly charged to store from energy time
The electric energy of receiving apparatus, and being capable of the repid discharge high-power output of offer.Additionally, energy conserving system 100
The current control dress being arranged between the first battery pack 110 and the second battery pack 120 can also be included
130 are put, the current control device is caused between the first battery pack and the second battery pack in predefined conditions
Disconnect, close.First battery pack and the second battery pack can in predefined conditions disconnect or close
Close
Fig. 2 shows another implementation method 200 of double cell energy conserving system of the invention
Schematic diagram, Fig. 3 shows the further embodiment 300 of double cell energy conserving system of the invention
Schematic diagram.In the energy conserving system 200 shown in Fig. 2, the first battery pack 210 can be included,
The battery pack is mainly used in storage energy, is the standby electricity that large current load 240 provides larger capacity
Pond, so as to provide the standby electricity of abundance；Second battery pack 220, second battery pack 220 and
One battery pack 210 is in parallel, and the second battery pack can be rapidly charged to store from energy regenerating dress
Put 250 electric energy, and provide and can repid discharge high-power output is provided；And arrangement
Current control device between the first battery pack 210 and the second battery pack 220.In the embodiment party
In formula, the large current load for example can be motor and starter etc.；Energy recycle device 250
It can be generator.One-way conduction element 231 can be included in current control device, so that
Obtain electric current to be merely capable of flowing to the second battery pack 220 from the first battery pack 210, from the first battery pack court
To the second battery pack one-way flow.
In the energy conserving system 300 shown in Fig. 3, the system is similar with energy conserving system 200, equally
The first battery pack 310 is included, the battery pack can be used for storage energy, possess larger storage capacity,
The backup battery of larger capacity is provided for large current load 340, so as to provide the standby of abundance；The
Two battery packs 320, second battery pack 320 is in parallel with the first battery pack 310, the second battery pack energy
Enough it is rapidly charged to store the electric energy from energy recycle device 350, and provides and can
Repid discharge provides high-power output；And it is arranged in the first battery pack 310 and the second battery pack 320
Between current control device.
In the current control device of energy conserving system 300, one-way conduction element 331 is not comprised only,
The one-way conduction element 331 can also be parallel with gate-controlled switch 332.
Gate-controlled switch 332 can be connected between the first battery pack 310 and the second battery pack 320,
When the first battery pack is that large current load 340 is powered, gate-controlled switch 332 disconnects；In the second electricity
Pond group 320 is in when being electrically charged state, and gate-controlled switch 332 can be closed；When the second battery pack 320
Voltage higher than the first battery pack 310 voltage when, gate-controlled switch 332 disconnects.
Preferably, gate-controlled switch 332 can be relay, IGBT (Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor), MOSFET (Metal-Oxide Semiconductor effects
Answer transistor) or other can be used for control connecting and disconnecting of the circuit component.
Fig. 4 shows the double cell energy conserving system of another specific embodiment of the invention
400 schematic diagram, the system equally includes the first battery pack 410, and the battery pack is mainly used in depositing
Energy storage capacity, is that large current load 440 provides the backup battery of larger capacity, so as to provide abundance
Standby；Second battery pack 420, second battery pack 420 is in parallel with the first battery pack 410, and second
Battery pack can be rapidly charged to store the electric energy from energy recycle device 450；And arrangement
Current control device between the first battery pack 410 and the second battery pack 420.In energy conserving system
Gate-controlled switch 433 can be included in 400 current control device.The gate-controlled switch is connected to first
Between battery pack and the second battery pack.Gate-controlled switch 433 is needing the first battery pack and the second battery
Disconnected when group each works independently；Gate-controlled switch 433 is needing two battery pack systems collaborative works
When close.Preferably, gate-controlled switch 433 can for relay, IGBT, MOSFET or other
Can be used to control the component of connecting and disconnecting of the circuit.
Fig. 5 shows an implementation method for modification 500 of the double cell energy conserving system shown in Fig. 4,
It is same in the energy conserving system to include for first battery pack 510 of the power supply of large current load 540, for storing
Second battery pack 520 of the electric energy from energy recycle device 550.In energy conserving system 500, can
Control switch 535 is connected between the first battery pack and the second battery pack, and controllable in the system
Switch and close always.
In hereinbefore described energy conserving system 100,200,300,400 and 500, the second battery
The battery of group can be the battery that rechargeable electrical energy is reclaimed for big multiplying power, special with preferable power
Property；Preferably, the battery of the second battery pack can be high-performance lead-acid battery, lithium ion battery,
Or other can be used for the battery that big multiplying power recovers energy.The battery of the first battery pack can be based on
It is used for the battery of storage energy, with preferable energy response；Preferably, the first battery can
Think lead-acid battery, or lithium ion battery, or other can be used for the electric power storage of mass storage energy
Pond, or can be used to drive the battery of large current load.
Preferably, energy conserving system can according to the first battery pack and the state of the second battery pack, including
Voltage, SOC (State of Charge, i.e. state-of-charge are dump energy), temperature and
The factors such as vehicle working condition control gate-controlled switch.
Preferably, battery management system (not shown) is also included in energy conserving system of the invention,
The battery management system is managed to battery, and the management to battery includes the residue to battery
Electricity, can with charge-discharge electric power situation, utilisable energy and can be in storage energy situation one kind or
It is various to carry out check and evaluation.
According to the embodiment of the present invention, when the first battery pack is powered for large current load,
Gate-controlled switch is disconnected, and the first battery all one's effort is powered for large current load, while not influenceing the second battery
The load (as shown in the drawings 260,360,460 that group voltage and the second battery pack are powered
With using effect 560)；Preferably, when being charged to the second battery pack with big multiplying power electric current, can
Control is switched off, to cause that the first battery pack is not influenceed by big multiplying power electric current.
Energy conversion device is also included in energy conserving system of the invention, in energy conversion
When device generates electricity, the gate-controlled switch closure；When the charging current or voltage of the first battery reach
During the degree that one battery pack can not bear, the gate-controlled switch disconnects.
According to one embodiment of present invention, in second battery pack for the large current load is supplied
When electric, gate-controlled switch is disconnected, and the second battery all one's effort is powered for the large current load, while not shadow
Ring the using effect of the load that the first battery voltage and the first battery pack are powered.
Hereinafter, as a example by the double cell energy conserving system in installed in the vehicle with engine,
To further illustrate.
Double cell energy conserving system 100 to 500 in the foregoing embodiment, can be applied to tool
In having a vehicle of engine.Wherein, the first battery pack can be as the starter of large current load
Power supply, the second battery pack is the automobile-used load supplying of routine of vehicle.
Then automobile-used load is mainly driven by the second battery pack when normal vehicle operation, or
The automobile-used loading section of person by the second battery driven, partly by the first battery driven.
Energy conversion device in vehicle is set to generator, and the generator is reclaimed in vehicle deceleration
Deceleration energy changes into electric energy and the second battery pack and/or the first battery pack is charged, it is preferable that
Generator is the controllable generator of output voltage.
Or, when normal vehicle operation, generator is controlled also according to the state of battery
First battery pack and/or the second battery pack are carried out to mend electricity, vehicle load is driven.
Main charging current in the charge state is reclaimed by the second battery pack, while the first battery pack
Certain electricity can also be reclaimed.
The invention also discloses a kind of vehicle, the vehicle is equipped with according to previously described double cell
Energy conserving system, wherein, first battery pack is starter powered vehicle normally travel of vehicle etc.
In the case of then it is automobile-used load be driven by the second battery pack, the first battery pack and generator, drive
The allocation proportion of power relies on the state/connected mode of each battery pack, by control electric current control device
It is adjusted with generator output voltage；Energy conversion device in the vehicle is generator, institute
State generator reclaimed in vehicle deceleration deceleration energy change into electric energy to second battery pack and/
Or first battery pack charged.
Preferably, the generator is the controllable generator of output voltage.Particularly, subtract in vehicle
When fast, improve output voltage, with more recovery deceleration energy, to second battery pack and/or
First battery pack is charged.Under the non-deceleration regime of vehicle, output voltage is reduced, reduce and generate electricity
Machine generated energy, makes battery pack discharge the electricity for reclaiming, so as to save fuel oil
Alternatively, the state also according to battery when normal vehicle operation controls generator pair
First battery pack and/or the second battery pack carry out mending electricity, drive vehicle load.
Main charging current in the charge state is reclaimed by the second battery pack, while the first battery pack
Certain electricity can also be reclaimed.
Large current load in the vehicle is starter, and the starter is started in vehicle launch
Engine is, it is necessary to first battery pack output very high current；Preferably, the current control
Device causes the separated of two battery packs when starter works or causes that electric current can only be by the
One battery pack is to the second battery pack one-way flow, so that the first battery is with all strength for starter is powered,
The using effect of the load that the second battery voltage and the second battery pack powered is not influenceed simultaneously.
According to one embodiment of present invention, can be recovered energy in energy conversion device and be converted to electricity
When energy, quickly charged to the second battery pack and reclaim electric energy, while can be filled to the first battery pack
Electricity reclaims electric energy, and control system distributes two batteries according to the state control electric current control device of battery
The charge power of group, protects battery and realizes maximized energy regenerating；The energy of recovery will be used for
Vehicle electric is loaded；In engine start, the electricity of current control device reasonable distribution first and second
The power output of pond group, it is ensured that the power demand of startup；Simultaneously as possible avoid vehicle other load
Supply voltage changes excessive or brownout.
An implementation method of the invention, discloses a kind of vehicle with engine, the car
Double cell energy conserving system as previously described is equipped with, wherein, second battery pack is vehicle
Starter power；Wherein, when normal vehicle operation it is automobile-used load by the second battery pack,
First battery pack and generator are driven, and the allocation proportion of driving power relies on the shape of each battery pack
State/connected mode, is adjusted by control electric current control device and generator output voltage.
Energy conversion device in vehicle is generator, and the generator is reclaimed in vehicle deceleration and subtracted
Fast energy changes into electric energy and second battery pack and/or the first battery pack is charged.
Preferably, the generator is the controllable generator of output voltage.
Preferably, in vehicle deceleration, the controllable generator of the output voltage improves output voltage,
With more recovery deceleration energy, second battery pack and/or the first battery pack are charged；
Under the non-deceleration regime of vehicle, output voltage is reduced, reduce generator power output, release battery pack
The electricity of receipts is put back to, so as to save fuel oil.
Or, when normal vehicle operation also according to battery state control generator to the
One battery pack and/or the second battery pack carry out mending electricity, drive vehicle load.
Main charging current in the charge state is reclaimed by the second battery pack, while the first battery pack
Certain electricity can also be reclaimed.
Large current load in the vehicle is starter, and the starter is started in vehicle launch
Engine is, it is necessary to first battery pack output very high current.Preferably, the current control
Device causes the separated of two battery packs when starter works or causes that electric current can only be by the
One battery pack is to the second battery pack one-way flow, so that the first battery is with all strength for starter is powered,
The using effect of the load that the second battery voltage and the second battery pack powered is not influenceed simultaneously.
Invention additionally discloses a kind of double cell power-economizing method, the method includes：Using the first battery pack
Carry out storage energy；Second battery pack is set, and second battery pack is in parallel with first battery pack,
Second battery pack is configured to mainly to be rapidly charged to store the electricity from energy recycle device
Can, and being capable of the repid discharge high-power output of offer；And in the first battery pack and the second battery
Current control device is set between group, and the current control device causes the first battery in predefined conditions
Separated, the closure of group and the second battery pack.
In above-mentioned power-economizing method, it is preferable that recovered energy in energy conversion device and be converted to electric energy
When, can quickly be charged to the second battery pack and reclaim electric energy, while being charged to the first battery pack
Electric energy is reclaimed, control system distributes two battery packs according to the state control electric current control device of battery
Charge power, protection battery simultaneously realize maximized energy regenerating；The energy of recovery will be used for car
Electrical load.
Preferably, by controlling energy conversion device output voltage, control reclaim electric energy power and
Moment：Improving output voltage is used to increase regenerative power, and reducing voltage is used to reduce regenerative power.
In engine start, current control device can be with the battery pack of reasonable distribution first and second
Power output, it is ensured that the power demand of startup；Avoid the power supply electricity of other loads of vehicle as possible simultaneously
Bucklingization is excessive or brownout.
Optionally, gate-controlled switch can for relay, IGBT, MOSFET or other can be used to control
The component of connecting and disconnecting of the circuit processed.
In a further embodiment of the method in accordance with the present invention, can be in current control device
Gate-controlled switch, is not provided with individual event breakover element.The gate-controlled switch is connected to the first battery pack and second
Between battery pack, gate-controlled switch is when needing the first battery pack and the second battery pack each to work independently
Disconnect, gate-controlled switch is closed when needing dual battery system to cooperate；Preferably, it is described controllable
Switch for relay, IGBT, MOSFET or other can be used for control connecting and disconnecting of the circuit component.
In the method according to the invention, the battery of the second battery pack is to reclaim to charge for big multiplying power
The battery of electric energy, with preferable power characteristic；Preferably, the battery of second battery pack
It is high-performance lead-acid battery, lithium ion battery, or other can be used for the battery for recovering energy；
Preferably, the battery of first battery pack is the battery for being mainly used in storage energy, tool
There is preferable energy response；Preferably, the first battery can be lead-acid battery, or lithium-ion electric
Pond, or other can be used for drive starter battery.
In an embodiment of the system according to the present invention, the second battery pack can be vehicle
Starter is powered, and the first battery pack is the automobile-used load supplying of routine of vehicle；Normal vehicle operation etc.
In the case of it is automobile-used load be driven by the second battery pack, the first battery pack and generator, drive work(
The allocation proportion of rate relies on the state of each battery pack, defeated by control electric current control device and generator
Go out voltage to be adjusted；Energy conversion device in the vehicle is generator, and the generator exists
Deceleration energy is reclaimed during vehicle deceleration and changes into electric energy to second battery pack and/or the first battery
Group is charged；Preferably, the generator is the controllable generator of output voltage, it is preferred that
During vehicle deceleration, the controllable generator of the output voltage improves output voltage, more to reclaim
Deceleration energy, charges to second battery pack and/or the first battery pack.In the non-deceleration of vehicle
Under state, output voltage is reduced, reduces generator power output, battery pack is discharged the electricity for reclaiming,
So as to save fuel oil；Or the state also according to battery when normal vehicle operation controls hair
Motor carries out mending electricity to the first battery pack and/or the second battery pack, drives vehicle load；In charging shape
Main charging current under state is reclaimed by the second battery pack, while the first battery pack can also reclaim one
Fixed electricity.
In double cell energy conserving system of the invention, the one-way conduction in current control device
Element for example can be diode or diode array.
For example, referring to shown in Fig. 3, in the double cell energy conserving system 300 for vehicle, first
The battery pack 320 of battery pack 310 and second passes through a diode or diode array 331 and
Individual gate-controlled switch 332 is in parallel.First battery pack 310 is mainly used in storage energy, with preferable
Energy stores performance, it is ensured that can at any time drive starter 340 to start engine.The
One battery pack 310 can be the starting lead-acid accumulator, or lithium ion commonly used on current car
Battery or other can be used for drive starter battery.Generally, the first battery pack needs
From the larger battery of capacity ensureing the electric equilibrium of vehicle.Second battery pack 320 is mainly used in back
Receive deceleration energy, with preferable power-performance, can high current is high-power is charged, mainly
Braking energy, and then the energy that will can be reclaimed are reclaimed for the high-power high-current in vehicle deceleration
For driving all 360 or automobile-used loads of drive part of automobile-used load, the second battery pack 320 can
Be lithium ion battery, or the good lead-acid battery of power characteristic or other can be used to reclaim
The battery of energy.Generally, the second battery pack can select the less battery of capacity to reduce
Cost, however it is necessary that ensureing its power-performance.
Starter 340 is connected in parallel on the side of the first battery pack 310, when needing to start, by the first electricity
The direct drive starter 340 of pond group 310 is started.And due to diode 332, the second electricity
Pond 320 will not directly drive starter 340, and the second battery pack 320 is mainly used in driving automobile-used load.
Meanwhile, if in the electricity wretched insufficiency of the first battery pack 310, in the case of not enough driving starter,
Can also be closed by controlling gate-controlled switch 332, so that the energy of the second battery pack 320 can be utilized
Starter 340 is driven jointly with the first battery.
Automobile-used load 360 is connected in parallel on the side of the second battery pack 320, is directly driven by the second battery pack 320
It is dynamic.In the case of the second battery electric quantity is relatively low, the second cell voltage is relatively low, less than the first battery electricity
Pressure, then the first battery can also be by diode 331, the automobile-used load 360 of process auxiliary drive.Generating electricity
In the case that machine generates electricity, the electric current of generator output can also drive automobile-used bearing by diode 331
Carry, while being charged to the second battery.Simultaneously according to battery status estimated result, first
In the case that the available power of battery pack 310 is relatively low, you can actively to close gate-controlled switch 332, then by
First battery aids in the second battery to drive automobile-used load 360 jointly.When engine is started, due to rising
The electric current that motivation needs is larger, causes the voltage of the first battery pack 310 to be greatly lowered, now two pole
Pipe 331 can prevent the voltage of the second battery pack 320 to be pulled low, so as to ensure the electricity consumption of automobile-used load
Situation, improves passenger experience.
Controllable electric generator 350 can charge in the case of automobile is non-brake to the first battery pack 310；
The second battery pack can be given in the case where the voltage of the second battery pack 320 is relatively low by diode 331
320 charge, and drive vehicle to load 360；Simultaneously according to battery status estimated result, second
In the case that the available power of battery pack 320 is relatively low, gate-controlled switch 332 can be actively closed, by generating electricity
Machine charges directly to the second battery pack 320, and drives vehicle load 360, or raising generator is defeated
Go out voltage, drive vehicle to load and charged to the second battery pack 320 by diode.And in automobile
In the case of retarding braking, then generator can be controlled to reclaim deceleration energy, now electrical power generators work(
Rate is larger, and recovery electric current is generally larger, because the usual internal resistance of the first battery pack 310 is higher, accordingly
The electric current for being filled with the first battery pack 310 it is smaller, and the usual internal resistance of the second battery pack 320 is relatively low,
The electric current that corresponding generator sends mainly is filled with the second battery pack 320, preferably subtracts so as to reach
Fast energy regenerating effect.After deceleration energy regenerating terminates, the usual voltage of first battery pack 310 compared with
It is low, and the second battery pack 320 has been due to having reclaimed more electricity, usual its voltage is higher, now
Diode 331 can prevent the electricity for reclaiming from filling back the first battery pack again from the second battery pack 320
310, cause the loss of energy and the impact to battery, it is also ensured that the life-span of battery.Slowing down
After energy regenerating, it is automobile-used negative that the second battery pack 320 can utilize this portion of energy for reclaiming to drive
Carry, so as to reach the effect of fuel-economizing.
Implementation method as shown in Figure 2, it is proper in the voltage matches of the first battery pack and the second battery pack
In the case of, gate-controlled switch can not be used, only with a diode, it is also ensured that
Appropriate connection to the first battery pack and the second battery pack.When engine is started, the first battery can
With all one's effort driving starter, and the automobile-used load of the second battery power；In deceleration energy regenerating, hair
Motor output voltage is higher, and reclaiming electric current can carry out high-power filling by diode to the second battery
Electricity；In normal course of operation, output generator current can also give the second battery by diode
Charged, while driving vehicle load.Fig. 6 shows double cell energy-conservation of the invention
One implementation method of system is used for the schematic diagram of vehicle, wherein the starter as heavy traffic load
Current control device both sides are located at respectively with the generator as energy recycle device.
As shown in fig. 6, in order to ensure automobile-used critical loads electricity consumption, then can be by a part of automobile-used load
661 are driven by the first battery pack 610, and other a part of automobile-used loads 660 are still by second
Battery pack 620 is driven.In view of the storage of the first battery pack compared with multi-energy, can more stablize
Long-time power.Automobile-used load distribution then as shown in Figure 6 can ensure the second battery pack 620,
In the case that gate-controlled switch 632 goes wrong, still can be by storing the first battery compared with multi-energy
610 drive automobile-used load 661, it is ensured that vehicle can walk lamely.
Wherein, automobile-used load be able to can also be wrapped including security system, engine management system etc.
Include lighting system, entertainment systems outside in-car and car etc..
In certain embodiments, there is no battery management system, then corresponding entire car controller can be with root
According to information such as cell voltages, gate-controlled switch is controlled.
Such as implementation method as shown in Figure 6, it is also possible to by starter and the first battery arrangement in two
The side of pole pipe, generator and the second battery arrangement are in the opposite side of diode, so as to ensure two
Battery can each complete it required for function, ensure that starting and the deceleration energy of engine
Recovery.Starter and the first battery are directly arranged in parallel, it is ensured that at any time, start
Machine can directly drive starter, it is ensured that the direct operation of vehicle.Generator and the second battery pack
Directly it is arranged in parallel, it is ensured that directly high-power to the second battery pack in deceleration energy regenerating
Charge.Simultaneously in normal course of operation, generator can also the direct generation of electricity drive vehicle load,
Electricity is mended to the second battery pack, while mending electricity to the first battery pack by diode.Shown in Fig. 6
In implementation method, the one-way conduction element in the current control device in the system is also parallel with controllable
Switch, one-way conduction element is enabled current to from the second battery pack to the first battery pack one-way flow.
The implementation method that Fig. 7 shows double cell energy conserving system of the invention is used for car
Schematic diagram, wherein the starter as heavy traffic load and the generating as energy recycle device
Machine is located at current control device both sides respectively, wherein unidirectional in the current control device in the system
Breakover element is also parallel with gate-controlled switch, and one-way conduction element is enabled current to from the first battery pack
To the second battery pack one-way flow.
As shown in fig. 7, the life-span in order to optimize the first battery 710, by all automobile-used loads 760
It is driven with the second battery 720, and the first battery only directly drives starter 740 when starting,
To prevent the first battery by overdischarge.In deceleration energy regenerating, generator 750 is directly to second
The high-power charging of battery, while control gate-controlled switch 732 to disconnect, now one-way conduction element 731
Can ensure that the first battery 710 is not overcharged.When the first battery 710 needs to charge, closure
Gate-controlled switch 732, generator 750 can charge to the first battery.In the feelings of the second battery power shortage
Under condition, its voltage is relatively low, and the first battery can load 760 by the way that one-way conduction element drives are automobile-used,
Ensure the electricity consumption of automobile-used load.
In the present invention, large current load can be arranged in the first battery pack side, it is also possible to be arranged in
Second battery pack side.Particularly, on vehicle, its starter can be direct by the first battery pack
Drive, it is also possible to directly driven by the second battery pack.
Fig. 8 shows that an implementation method of double cell energy conserving system of the invention is used for vehicle
Schematic diagram, wherein the starter 840 as heavy traffic load is directly driven by the second battery pack 820
It is dynamic；The generator 850 for being used as energy recycle device is then directly in parallel with the first battery pack 810.Should
In depending on shown double cell energy conserving system, starter as heavy traffic load and as energy regenerating
The generator of device is located at current control device both sides respectively, and other automobile-used loads are all by battery one
Gate-controlled switch is included in direct drive, and current control device in the system.And in the system
Current control device in include gate-controlled switch.
As shown in figure 8, the second battery pack directly drives starter 840 when starting, while electric current
Control device 830 can control circuit to disconnect, and prevent from influenceing the voltage of the first battery pack and automobile-used negative
Carry 860 power supply.In deceleration energy regenerating, current control device 830 can control circuit to close
Close, generator 850 is simultaneously to the first battery pack and the second battery pack high current feedback electric energy.In car
In normal driving process, generator 850 can directly drive automobile-used load, while to the first electricity
Pond group and the second battery pack mend electricity.
In the present invention, automobile-used load can all by the second battery pack directly drive, such as Fig. 2, Fig. 3,
In Fig. 4, Fig. 5, Fig. 7 shown in embodiment；All can also be directly driven by the first battery pack, such as
In Fig. 8 shown in embodiment；Partly can also be directly driven by the first battery pack, partly by the second electricity
Pond group direct drive, as shown in embodiment in Fig. 6.
Specific type of drive regardless of automobile-used load, can be by control electric current control device
And/or generator output voltage, driving power is distributed, as shown in embodiment in each figure.
In the present invention, gate-controlled switch can for relay, or other can be used for control circuit
The electronic component of break-make, such as IGBT IGBT (Insulated Gate Bipolar Transistor), absolutely
Edge grid bipolar transistor, MOSFET Metal-Oxide Semiconductor field-effect transistors, referred to as gold
Oxygen half field effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor,
MOSFET) etc..
Similar, energy conserving system 400 as described in Figure 4 can also apply to the vehicle with engine
In.In energy conserving system 400, the first battery pack 410 and logical one of the second battery pack 420 are controllable
Switch 433 is in parallel.First battery pack 410 is mainly used in storage energy, is deposited with preferable energy
Storage performance, it is ensured that can at any time drive starter 440 to start engine, the first battery pack
410 can be the starting lead-acid accumulator, or lithium ion battery or its commonly used on current car
He can be used to drive the battery of starter.Generally, the first battery pack need from capacity compared with
Big battery is to ensure the electric equilibrium of vehicle, but the internal resistance of battery in the first battery pack is generally also
Than larger, therefore high-power cannot be charged in deceleration energy regenerating.Second battery pack 420 is main
For reclaiming deceleration energy, with preferable power-performance, can high current is high-power is charged,
It is mainly used in the high-power high-current in vehicle deceleration and reclaims braking energy, and then can be by recovery
Energy is used to drive all 460 or the automobile-used load of drive part of automobile-used load, the second battery pack 420
Can be lithium ion battery, or the good lead-acid battery of power characteristic or other can be used for back
Receive the battery of energy.Generally, the second battery pack can select the less battery of capacity to drop
Low cost, however it is necessary that ensureing that its power-performance is good, internal resistance is small.
The side of the first battery pack 410 is connected in parallel on as the starter of large current load, is needing to start
When, gate-controlled switch 433 can be disconnected, the starting of starter is directly driven by the first battery pack 410,
Now because starter power consumption is larger, the voltage of the first battery pack 410 can be reduced rapidly, while
Second battery pack 420 is mainly used in driving automobile-used load 460, can ensure enough to vehicular electrical appliance
Supply voltage.If in the electricity wretched insufficiency of the first battery pack 410, being not enough to drive starter
In the case of, it is also possible to closed by controlling gate-controlled switch 433, so that the second battery pack 420 can be utilized
Energy and the first battery drive starter jointly, but the now electricity consumption of vehicular electrical appliance can be by certain
Influence.
In this embodiment, automobile-used load 460 is connected in parallel on this side of the second battery pack 420,
In the case where gate-controlled switch 433 is closed, it is total to by the first battery pack 410 and the second battery pack 420
With driving；And in the case where gate-controlled switch 433 disconnects, driven by the second battery pack 420 is independent.
During normal vehicle operation, gate-controlled switch is closed, and the first battery pack and the second battery pack are common
With the automobile-used load of driving.After deceleration energy regenerating, the second battery pack has reclaimed more energy,
Now gate-controlled switch disconnects, and the second battery pack independently drives automobile-used load, the energy of recovery is used
Gate-controlled switch is closed again after complete, energy dose-effect is caused to prevent the second battery pack to be charged to the first battery pack
The reduction of rate.In the case of generator is idle, the first battery power consumption to a certain extent,
During influence starting performance, it is also possible to control gate-controlled switch to disconnect, the second battery driven car is only used
With load.
Controllable electric generator can close gate-controlled switch during automobile normal running, to the first electricity
Pond and the second battery carry out mending electricity, while driving vehicle load.During car deceleration, can be with
Closure gate-controlled switch, controllable electric generator reclaims deceleration energy, now generator Electricity Generation, returns
Receipts electric current is very big, and because first internal resistance of cell is higher, and second internal resistance of cell is smaller, therefore reclaims
Electric current is mainly filled with the second battery.After deceleration energy regenerating terminates, gate-controlled switch can be disconnected,
To prevent electric energy from retransferring back the first battery from the second battery, the loss of energy is caused, while generating electricity
Machine can continue to be charged at a slow speed to the first battery.
Alternatively, as shown in figure 5, in the first battery pack and the feelings of the second cell voltage Proper Match
Under condition, gate-controlled switch can not be used, the first battery pack and the second battery pack are closed always or
It is directly in parallel.When engine is started, the first battery drives starter with all strength, and the second battery is auxiliary
Help driving；In deceleration energy regenerating, because second internal resistance of cell is lower, the electricity that engine sends
Amount is mainly filled with the second battery, and for driving automobile-used load；In normal course of operation, hair
Motor output current carries out mending electricity to the first battery and the second battery, while driving vehicle load.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention
It is not limited thereto, technology model of any one skilled in the art in present disclosure
In enclosing, the change or replacement that can be readily occurred in should all be included within the scope of the present invention.
Therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (14)
1. a kind of double cell energy conserving system, it is characterised in that the double cell energy conserving system includes：
First battery pack, the battery pack possesses larger storage capacity；
Second battery pack, second battery pack is in parallel with first battery pack, second battery
Group can be rapidly charged to store the electric energy from energy conversion device；And
The current control device between the first battery pack and the second battery pack is arranged in, the current control
Device causes the first battery pack with the separated of the second battery pack, closure or unidirectional in predefined conditions
Conducting.
2. energy conserving system as claimed in claim 1, it is characterised in that the current control device
When needing the first battery and the second battery each to work independently so that two battery packs it is separated；
The current control device is when needing dual battery system to cooperate so that being closed between two battery packs
Close or electric current one-way conduction.
3. energy conserving system as claimed in claim 2, it is characterised in that first battery pack and
/ or the second battery pack charged by the energy conversion device；Preferably, the energy conversion
Device voltage is controllable.
4. energy conserving system as claimed in claim 3, it is characterised in that to the energy converting means
The output voltage put is controlled in such a way：In the case where needing to be charged, improve
Energy conversion device output voltage, improves the charging to second battery pack and/or the first battery pack
Power；Under non-charged state, energy conversion device output voltage is reduced, reduce/stop energy and turn
Changing device generated energy, makes battery pack discharge reclaimed electric energy.
5. energy conserving system as claimed in claim 4, it is characterised in that filled in energy conversion device
When electric, the current control device causes separated, the closure of the first battery pack and the second battery pack
Or one-way conduction；
Alternatively, when energy conversion device charges, the current control device causes the first battery
Closed between group and the second battery pack, it is common to charge；
Preferably, a battery pack in first battery pack and the second battery pack is applied in
Charging current or voltage when reaching the degree that can not be born, the current control device causes first
Battery pack is separated with the second battery pack or so that electric current can only reach from this and be unable to Bearing degree
Battery pack is to another battery pack one-way flow.
6. the energy conserving system as any one of claim 1-5, it is characterised in that described
A battery pack or two battery packs in one battery pack and the second battery pack is negative to a high current
Load is powered；
The current control device causes that the first battery pack is separated with the second battery pack or causes
Electric current can only be by the second battery pack to the first battery pack one-way flow, in the first battery pack and second
There was only the second battery pack for the large current load is powered in battery pack.
7. the energy conserving system any one of claim 1-5, it is characterised in that described first
A battery pack or two battery packs in battery pack and the second battery pack is to a large current load
It is powered；
The current control device causes that the first battery pack is separated with the second battery pack or causes
Electric current can only be by the first battery pack to the second battery pack one-way flow, in the first battery pack and second
There was only the first battery for the large current load is powered in battery pack.
8. the energy conserving system according to any one of claim 1-7, it is characterised in that：
The battery of second battery pack is the energy storage device that rechargeable electrical energy is reclaimed for big multiplying power, tool
There is preferable power characteristic；Preferably, the battery of second battery pack be high-performance lead-acid battery,
Lithium ion battery, super capacitor, or the superior energy storage device of other big multiplying power charging performances；
The battery of first battery pack is the energy storage device for being mainly used in storage energy, with preferable
Energy response；Preferably, the first battery is lead-acid battery, or lithium ion battery, Huo Zheqi
He can be used for the energy storage device of a large amount of storage energies；
Preferably, the energy conserving system is according to the first battery pack and the state of the second battery pack, including
One or more in voltage, SOC, temperature, and the factor such as vehicle working condition are controlled/set
Meter current control device, and/or control energy conversion device.
9. energy conserving system according to claim 8, it is characterised in that the system also includes
Battery management system, the battery management system is managed to battery, the management bag to battery
Include dump energy to battery, charge-discharge electric power situation, utilisable energy and can storage energy feelings can be used
One or more in condition carry out check and evaluation.
10. energy conserving system according to claim 9, it is characterised in that the current control dress
It is set to the one kind in following form：One-way conduction element；Gate-controlled switch；One-way conduction element is simultaneously
Gate-controlled switch in parallel；Or close always；
Preferably, the one-way conduction element be diode, diode array or other can be single
To the electronic device of conducting；
Preferably, the gate-controlled switch be relay, IGBT, MOSFET or other can be used to control
The component of connecting and disconnecting of the circuit processed.
A kind of 11. vehicles with engine, it is characterised in that
The vehicle is equipped with double cell energy-conservation system according to any one of the preceding claims
System,
Wherein, first battery pack is powered for the starter of vehicle
It is then automobile-used when normal vehicle operation to load by the second battery pack, the first battery pack and hair
Motor is driven, and the allocation proportion of driving power relies on the state/connected mode of each battery pack, leads to
Cross control electric current control device and generator output voltage is adjusted；
Energy conversion device in the vehicle is generator, and the generator is returned in vehicle deceleration
Receipts deceleration energy changes into electric energy and second battery pack and/or the first battery pack is charged；It is excellent
Choosing, the generator is the controllable generator of output voltage,
Particularly, in vehicle deceleration, output voltage is improved, with more recovery deceleration energy,
Second battery pack and/or the first battery pack are charged；
Under the non-deceleration regime of vehicle, output voltage is reduced, reduce generator power output, make battery
The electricity that group release is reclaimed, so as to save fuel oil；
Or the state also according to battery when normal vehicle operation controls generator to first
Battery pack and/or the second battery pack carry out mending electricity, drive vehicle load；
Main charging current in the charge state is reclaimed by the second battery pack, while the first battery pack
Certain electricity can also be reclaimed.
Large current load in the vehicle is starter, and the starter is started in vehicle launch
Engine is, it is necessary to first battery pack output very high current；Preferably, the current control
Device causes the separated of two battery packs when starter works or causes that electric current can only be by the
One battery pack is to the second battery pack one-way flow, so that the first battery is with all strength for starter is powered,
The using effect of the load that the second battery voltage and the second battery pack powered is not influenceed simultaneously.
A kind of 12. vehicles with engine, it is characterised in that
The vehicle is equipped with the double cell energy-conservation system according to any one of claim 1-10
System,
Wherein, second battery pack is powered for the starter of vehicle；
Wherein, it is automobile-used when normal vehicle operation to load by the second battery pack, the first battery pack
It is driven with generator, the allocation proportion of driving power relies on the state/connection side of each battery pack
Formula, is adjusted by control electric current control device and generator output voltage；
Energy conversion device in the vehicle is generator, and the generator is returned in vehicle deceleration
Receipts deceleration energy changes into electric energy and second battery pack and/or the first battery pack is charged；
Preferably, the generator is the controllable generator of output voltage,
Preferably, in vehicle deceleration, the controllable generator of the output voltage improves output voltage,
With more recovery deceleration energy, second battery pack and/or the first battery pack are charged；
Under the non-deceleration regime of vehicle, output voltage is reduced, reduce generator power output, release battery pack
The electricity of receipts is put back to, so as to save fuel oil；
Or the state also according to battery when normal vehicle operation controls generator to first
Battery pack and/or the second battery pack carry out mending electricity, drive vehicle load；
Main charging current in the charge state is reclaimed by the second battery pack, while the first battery pack
Certain electricity can also be reclaimed；
Large current load in the vehicle is starter, and the starter is started in vehicle launch
Engine is, it is necessary to first battery pack output very high current；Preferably, the current control
Device causes the separated of two battery packs when starter works or causes that electric current can only be by the
One battery pack is to the second battery pack one-way flow, so that the first battery is with all strength for starter is powered,
The using effect of the load that the second battery voltage and the second battery pack powered is not influenceed simultaneously.
13. a kind of double cell power-economizing methods, it is characterised in that method includes：
Using the first battery pack come storage energy；
Second battery pack is set, and second battery pack is in parallel with first battery pack, by described
Two battery packs are configured to mainly be rapidly charged to store the electric energy from energy recycle device, and
Being capable of the repid discharge high-power output of offer；And
Current control device is set between the first battery pack and the second battery pack, current control dress
Put separated, the closure for causing the first battery pack and the second battery pack in predefined conditions.
14. methods according to claim 13, it is characterised in that：Returned in energy conversion device
Energy is received when be converted to electric energy, is quickly charged to the second battery pack and is reclaimed electric energy, while to the
One battery pack charges and reclaims electric energy, and control system is according to the state control electric current control device of battery point
With two charge powers of battery pack, protect battery and realize maximized energy regenerating；Reclaim
Energy will be used for vehicle electric load, it is preferred that by controlling energy conversion device output voltage,
Power and the moment of electric energy are reclaimed in control：Improving output voltage is used to increase regenerative power, reduces electricity
Press for reducing regenerative power；
In engine start, the output of the battery pack of current control device reasonable distribution first and second
Power, it is ensured that the power demand of startup；Avoid the supply voltage change of other loads of vehicle as possible simultaneously
Change excessive or brownout.
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| CN201510968861.3A CN106911150A (en) | 2015-12-22 | 2015-12-22 | A kind of double cell energy conserving system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108150332A (en) * | 2017-12-13 | 2018-06-12 | 中国北方车辆研究所 | Mixed type accumulator cold-starting dynamical system |
| CN108162896A (en) * | 2017-12-13 | 2018-06-15 | 中国北方车辆研究所 | Mixed type accumulator cold-starting method |
| CN110497801A (en) * | 2018-05-18 | 2019-11-26 | 株式会社日立制作所 | Current distribution device and current distribution method of composite battery for vehicle |
| CN111794890A (en) * | 2020-06-22 | 2020-10-20 | 一汽奔腾轿车有限公司 | Engine auxiliary starting system with emergency power supply |
| TWI738563B (en) * | 2020-05-29 | 2021-09-01 | 天揚精密科技股份有限公司 | System and method thereof for output ratio configuration of the start-up battery and the energy storage module in parallel |
| CN115037028A (en) * | 2021-03-05 | 2022-09-09 | 本田技研工业株式会社 | Electric power supply circuit |
| CN115276208A (en) * | 2022-08-08 | 2022-11-01 | 一汽解放汽车有限公司 | Multi-battery control method, system, apparatus, computer device, medium, and product |
| CN116430257A (en) * | 2023-06-15 | 2023-07-14 | 四川新能源汽车创新中心有限公司 | Method for representing electrical performance of lithium battery and application thereof |
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| CN104659921A (en) * | 2013-11-26 | 2015-05-27 | 北京科易动力科技有限公司 | Composite energy storage system for automobiles |
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| CN104659921A (en) * | 2013-11-26 | 2015-05-27 | 北京科易动力科技有限公司 | Composite energy storage system for automobiles |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150332A (en) * | 2017-12-13 | 2018-06-12 | 中国北方车辆研究所 | Mixed type accumulator cold-starting dynamical system |
| CN108162896A (en) * | 2017-12-13 | 2018-06-15 | 中国北方车辆研究所 | Mixed type accumulator cold-starting method |
| CN110497801A (en) * | 2018-05-18 | 2019-11-26 | 株式会社日立制作所 | Current distribution device and current distribution method of composite battery for vehicle |
| TWI738563B (en) * | 2020-05-29 | 2021-09-01 | 天揚精密科技股份有限公司 | System and method thereof for output ratio configuration of the start-up battery and the energy storage module in parallel |
| CN111794890A (en) * | 2020-06-22 | 2020-10-20 | 一汽奔腾轿车有限公司 | Engine auxiliary starting system with emergency power supply |
| CN115037028A (en) * | 2021-03-05 | 2022-09-09 | 本田技研工业株式会社 | Electric power supply circuit |
| CN115037028B (en) * | 2021-03-05 | 2025-11-21 | 本田技研工业株式会社 | Electric power supply circuit |
| CN115276208A (en) * | 2022-08-08 | 2022-11-01 | 一汽解放汽车有限公司 | Multi-battery control method, system, apparatus, computer device, medium, and product |
| CN116430257A (en) * | 2023-06-15 | 2023-07-14 | 四川新能源汽车创新中心有限公司 | Method for representing electrical performance of lithium battery and application thereof |
| CN116430257B (en) * | 2023-06-15 | 2023-09-19 | 四川新能源汽车创新中心有限公司 | A method for characterizing the electrical performance of lithium batteries and its application |
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