WO2010058477A1 - 電動車両 - Google Patents
電動車両 Download PDFInfo
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- WO2010058477A1 WO2010058477A1 PCT/JP2008/071215 JP2008071215W WO2010058477A1 WO 2010058477 A1 WO2010058477 A1 WO 2010058477A1 JP 2008071215 W JP2008071215 W JP 2008071215W WO 2010058477 A1 WO2010058477 A1 WO 2010058477A1
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- resonant coil
- electric
- vehicle
- vehicle body
- power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
- B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- the present invention relates to an electric vehicle, and more particularly to an electric vehicle that can receive power from a power supply facility in a non-contact manner by resonating a power supply facility outside the vehicle and a resonance coil mounted on each of the vehicles via an electromagnetic field.
- Electric vehicles such as electric cars and hybrid cars are attracting a great deal of attention as environmentally friendly vehicles.
- An electric vehicle travels by charging a vehicle-mounted battery from a power source external to the vehicle and driving the motor using the charged power.
- a hybrid vehicle is a vehicle equipped with an engine as a power source together with a motor, or a vehicle further equipped with a fuel cell as a DC power source for driving the vehicle.
- hybrid vehicles vehicles that can charge an in-vehicle battery from a power source outside the vehicle are known, as in electric vehicles.
- a so-called “plug-in hybrid vehicle” is known in which an on-board battery can be charged from a general household power source by connecting a power outlet provided in a house and a charging port provided in the vehicle with a charging cable.
- a power transmission method wireless power transmission that does not use a power cord or a power transmission cable has recently attracted attention.
- this wireless power transmission technology three technologies known as power transmission using electromagnetic induction, power transmission using microwaves, and power transmission using a resonance method are known.
- the resonance method is a non-contact power transmission technique in which a pair of self-resonant coils are resonated in an electromagnetic field (near field) and transmitted via the electromagnetic field, and a large amount of power of several kW is transmitted over a relatively long distance (for example, several meters). It is also possible to transmit power (see Non-Patent Document 1). JP-A-8-237890 Andre Kurs et al., “Wireless Power Transfer via Strongly Coupled Magnetic Resonances”, [online], July 6, 2007, Science, Vol. 317, p. 83-86, [Search September 12, 2007], Internet ⁇ URL: http://www.sciencemag.org/cgi/reprint/317/5834/83.pdf>
- a high voltage is generated at the end of the secondary self-resonant coil so that corona discharge can occur around the end of the conductor. (For example, kV level) occurs.
- a high voltage generated at the conductive wire end portion of the secondary self-resonant coil generates a high electric field portion around the conductive wire end portion, and this high electric field portion is connected to each electric device (for example, battery or converter) mounted on the electric vehicle.
- each electric device for example, battery or converter
- Inverters, motors, electronic control devices, various sensors, etc. may be adversely affected.
- the electric field generated around the conductive wire end of the secondary self-resonant coil can be suppressed by suppressing the power supply rate from the power supply facility outside the vehicle to the electric vehicle.
- a method leads to a long power supply time, and is a practical problem in an electric vehicle that requires rapid power supply at a kWh level, for example.
- an object of the present invention is to reduce the cost and supply power in an electric vehicle that can receive power from a power supply facility outside the vehicle using a resonance method. Without reducing, it is to suppress the adverse effect on the in-vehicle electric equipment due to the high electric field generated during power reception.
- the electric vehicle is an electric vehicle capable of generating a driving force of the vehicle by electric power, and includes a secondary self-resonant coil and an electric device.
- the secondary self-resonant coil is installed at a predetermined position, and receives power from the primary self-resonant coil in a non-contact manner by resonating with a primary self-resonant coil provided in a power supply facility outside the vehicle via an electromagnetic field.
- the electrical device is a power storage device capable of storing electric power received by the secondary self-resonant coil, an electric motor that generates a driving force of the vehicle, a driving device that drives the electric motor using the electric power received by the secondary self-resonant coil, And at least one of an electronic control unit for controlling the drive unit.
- the secondary self-resonant coil is arranged so that the distance between the conductive wire end of the secondary self-resonant coil and the electric device is most secured.
- the secondary self-resonant coil is an LC resonant coil having an open end.
- the secondary self-resonant coil is disposed so as to keep the end portion of the conductive wire away from the electrical device closest to the secondary self-resonant coil.
- the electric motor and the driving device are disposed in front of the vehicle body.
- the power storage device is disposed behind the vehicle body.
- the electronic control device is disposed between the electric motor, the drive device, and the power storage device in the longitudinal direction of the vehicle body and at a position shifted to either the left or right from the left-right symmetrical axis of the vehicle body.
- the secondary self-resonant coil is installed at a substantially central portion of the bottom surface of the vehicle body, and is disposed such that the end portion of the conducting wire is located on the opposite side to the side where the electronic control device is shifted with respect to the left-right symmetry axis.
- the electric motor and the driving device are disposed in front of the vehicle body.
- the power storage device is disposed behind the vehicle body.
- the electronic control device is disposed between the electric motor, the drive device, and the power storage device in the longitudinal direction of the vehicle body and at a position shifted to either the left or right from the left-right symmetrical axis of the vehicle body.
- the secondary self-resonant coil is installed at a substantially central portion at the upper part of the vehicle body, and is disposed such that the end portion of the conducting wire is located on the side opposite to the side where the electronic control device is shifted with respect to the left-right symmetry axis.
- the electric motor and the driving device are disposed in front of the vehicle body.
- the power storage device is disposed close to the bottom surface of the vehicle body at the rear of the vehicle body.
- the electronic control device is disposed between the electric motor, the driving device, and the power storage device in the longitudinal direction of the vehicle body.
- the secondary self-resonant coil is installed at the rear end of the vehicle body, and is arranged so that the end portion of the conducting wire is located on the upper side of the vehicle body.
- a secondary self-resonant coil is installed at a predetermined position, and the secondary self-resonant coil resonates with a primary self-resonant coil provided in a power supply facility outside the vehicle via an electromagnetic field. Receives power from the resonance coil in a non-contact manner. At this time, a high voltage is generated at the conductive wire end of the secondary self-resonant coil, and a high electric field is generated around the conductive wire end.
- the secondary self-resonant coil is arranged so that the distance between the conductor end of the secondary self-resonant coil and the electric device is most secured, a high electric field portion generated around the conductor end. Can reduce the impact on the in-vehicle electrical equipment.
- the present invention it is possible to suppress the adverse effect on the in-vehicle electric equipment of the high electric field portion that is generated when receiving power from the power supply facility outside the vehicle at low cost. Moreover, according to this invention, the bad influence to the vehicle-mounted electrical equipment of the high electric field part which generate
- FIG. 1 is a view of the arrangement of main parts of an electric vehicle according to Embodiment 1 of the present invention as viewed from above the vehicle.
- FIG. 2 is a view of the arrangement of the main part of the electric vehicle shown in FIG. 1 as seen from the side of the vehicle.
- electric vehicle 100 includes a transaxle 110, a power control unit (hereinafter also referred to as “PCU (Power Control Unit)”) 120, a power storage device 130, an electronic control device ( (Hereinafter also referred to as “ECU (Electronic Control Unit)”) 140 and a secondary self-resonant coil 150.
- PCU Power Control Unit
- ECU Electronic Control Unit
- the transaxle 110 includes a motor that generates driving force of the vehicle, a generator that generates power using engine power (not shown), a power transmission gear, a differential gear, and the like. And in this electric vehicle 100, the transaxle 110 is arrange
- the transaxle 110 is provided with various sensors (not shown) such as a temperature sensor, a current sensor, and a rotation sensor for the motor and generator.
- PCU 120 includes an inverter that drives the motor and generator, a boost converter that boosts the output voltage of power storage device 130 and applies the boosted voltage to the inverter.
- PCU 120 is also disposed in front of the vehicle body, for example, at the top of transaxle 110.
- the PCU 120 is also provided with various sensors (not shown) such as a temperature sensor, a current sensor, and a voltage sensor.
- the power storage device 130 is a rechargeable DC power source, and is composed of, for example, a secondary battery such as lithium ion or nickel metal hydride. In electrically powered vehicle 100, power storage device 130 is disposed rearward of the vehicle body (in the ⁇ X direction shown in FIG. 1). The power storage device 130 stores power transmitted from the power supply facility 200 (FIG. 2) outside the vehicle and received by the secondary self-resonant coil 150, and also stores regenerative power generated by the transaxle 110 and output from the PCU 120. Then, power storage device 130 supplies the stored power to PCU 120.
- a secondary battery such as lithium ion or nickel metal hydride
- a large-capacity capacitor can also be used as the power storage device 130, and is a power buffer that can temporarily store the power supplied from the power supply facility 200 and the regenerative power from the PCU 120 and supply the stored power to the PCU 120. Anything is acceptable.
- the power storage device 130 is also provided with various sensors (not shown) such as a voltage sensor, a current sensor, and a temperature sensor.
- ECU 140 generates a signal for driving a motor or a generator included in transaxle 110 and outputs the signal to PCU 120 to control PCU 120.
- the ECU 140 is between the transaxle 110 and the PCU 120 and the power storage device 130 in the longitudinal direction of the vehicle body, and is shifted to the left side (the ⁇ Y direction shown in FIG. 1) from the left-right symmetric axis of the vehicle body. Arranged at the position.
- ECU 140 is disposed in front of the passenger seat disposed in the ⁇ Y direction with respect to the left-right symmetry axis of the vehicle body.
- Secondary self-resonant coil 150 receives power from power supply facility 200 by resonating with primary self-resonant coil 220 (FIG. 2) provided in power supply facility 200 outside the vehicle via an electromagnetic field.
- secondary self-resonant coil 150 is installed at a substantially central portion of the bottom surface of the vehicle body.
- the secondary self-resonant coil 150 is an LC resonant coil whose both ends are open (not connected), and is opposite to the side ( ⁇ Y direction) where the ECU 140 is shifted with respect to the left-right symmetric axis of the vehicle body (FIG. 1). Is arranged so that the end portion 160 of the coil is positioned in the + Y direction shown in FIG.
- the secondary self-resonant coil 150 is a primary self-resonant coil based on the distance from the primary self-resonant coil 220 of the power supply facility 200, the resonant frequencies of the primary self-resonant coil 220 and the secondary self-resonant coil 150, and the like.
- the number of turns is appropriately set so that the Q value (for example, Q> 100) indicating the resonance strength between 220 and the secondary self-resonant coil 150, and ⁇ indicating the degree of coupling thereof are increased.
- power supply facility 200 (FIG. 2) provided outside the vehicle includes a high-frequency power driver 210 and a primary self-resonant coil 220.
- the high frequency power supply driver 210 converts commercial AC power supplied from the system power supply 230 into high frequency power and supplies it to the primary self-resonant coil 220.
- the primary self-resonant coil 220 resonates with the secondary self-resonant coil 150 on the vehicle side via an electromagnetic field, thereby transmitting the power supplied from the high-frequency power driver 210 to the secondary self-resonant coil 150 on the vehicle side in a non-contact manner.
- the frequency of the high frequency power generated by the high frequency power supply driver 210 is, for example, 1M to several tens of MHz.
- FIG. 3 is a diagram for explaining the principle of power transmission by the resonance method.
- the resonance method in the same way as two tuning forks resonate, two LC resonance coils having the same natural frequency resonate in an electromagnetic field (near field), so that one resonance coil Electric power is transmitted to the other resonance coil via an electromagnetic field.
- the primary coil 320 is connected to the high-frequency power source 310, and high-frequency power of 1 to 10 MHz is fed to the primary self-resonant coil 330 that is magnetically coupled to the primary coil 320 by electromagnetic induction.
- the primary self-resonant coil 330 is an LC resonator having an inductance and stray capacitance of the coil itself, and resonates with a secondary self-resonant coil 340 having the same resonance frequency as the primary self-resonant coil 330 via an electromagnetic field (near field). .
- energy electrical power moves from the primary self-resonant coil 330 to the secondary self-resonant coil 340 via the electromagnetic field.
- the energy (electric power) transferred to the secondary self-resonant coil 340 is taken out by the secondary coil 350 magnetically coupled to the secondary self-resonant coil 340 by electromagnetic induction and supplied to the load 360.
- power transmission by the resonance method is realized when the Q value indicating the resonance intensity between the primary self-resonant coil 330 and the secondary self-resonant coil 340 is greater than 100, for example.
- FIG. 4 is a graph showing the relationship between the distance from the current source (magnetic current source) and the strength of the electromagnetic field.
- the electromagnetic field includes three components.
- the curve k1 is a component that is inversely proportional to the distance from the wave source, and is referred to as a “radiated electromagnetic field”.
- a curve k2 is a component inversely proportional to the square of the distance from the wave source, and is referred to as an “induction electromagnetic field”.
- the curve k3 is a component inversely proportional to the cube of the distance from the wave source, and is referred to as an “electrostatic magnetic field”.
- the resonance method energy (electric power) is transmitted using this near field (evanescent field). That is, by using a near field to resonate a pair of LC resonance coils having the same natural frequency, one LC resonance coil (primary self-resonance coil) and the other LC resonance coil (secondary self-resonance coil) Transmit energy (electric power) to Since this near field does not propagate energy (electric power) far away, the resonance method transmits power with less energy loss than electromagnetic waves that transmit energy (electric power) by "radiation electromagnetic field” that propagates energy far away. be able to.
- FIG. 5 is a diagram showing the voltage distribution of the secondary self-resonant coil 150 shown in FIGS.
- the horizontal axis indicates the distance from the central portion of the conducting wire constituting secondary self-resonant coil 150
- the vertical axis indicates the voltage generated in the conducting wire when secondary self-resonant coil 150 receives power.
- the closer to the end of the conducting wire the higher the voltage and the maximum at the end.
- a high voltage for example, kV level
- the voltage at the center of the conducting wire is zero, and the sign of the voltage is inverted according to the resonance frequency.
- a high voltage is generated at the end of the conducting wire of the self-resonant coil.
- the resonance method is used for power supply to an electric vehicle that requires high power supply at the kW level, there is an adverse effect on the operation of the in-vehicle electric device around the conductive wire end portion of the secondary self-resonant coil mounted on the vehicle.
- a high electric field portion that can affect Therefore, in the first embodiment, between the conductive wire end portion 160 of the secondary self-resonant coil 150 installed at the substantially central portion of the bottom surface of the vehicle body and each electrical device (transaxle 110, PCU 120, power storage device 130, and ECU 140).
- the secondary self-resonant coil 150 is arranged so that a sufficient distance is secured.
- the ECU 140 is closest to the secondary self-resonant coil 150.
- the left and right sides of the vehicle body Disposing secondary self-resonant coil 150 such that coil end 160 of the coil is positioned on the opposite side ( ⁇ Y direction) to the side where ECU 140 is shifted with respect to the axis of symmetry (+ Y direction shown in FIG. 1); It is a thing.
- FIG. 6 is a block diagram showing a power train configuration of electric vehicle 100 shown in FIGS.
- electrically powered vehicle 100 includes power storage device 130, system main relay SMR 1, boost converter 122, inverters 124 and 126, motor generators 112 and 114, engine 172, and power split device 174.
- Drive wheel 176 Electric vehicle 100 further includes secondary self-resonant coil 150, secondary coil 182, rectifier 184, DC / DC converter 186, system main relay SMR 2, and ECU 140.
- This electric vehicle 100 is equipped with an engine 172 and a motor generator 114 as power sources.
- Engine 172 and motor generators 112 and 114 are connected to power split device 174.
- Electric vehicle 100 travels by a driving force generated by at least one of engine 172 and motor generator 114.
- the power generated by the engine 172 is divided into two paths by the power split device 174. That is, one is a path transmitted to the drive wheel 176 and the other is a path transmitted to the motor generator 112.
- the motor generator 112 is an AC rotating electric machine, and includes, for example, a three-phase AC synchronous motor in which a permanent magnet is embedded in a rotor. Motor generator 112 generates power using the kinetic energy of engine 172 via power split device 174. For example, when the state of charge of power storage device 130 (also referred to as “SOC (State Of Charge)”) becomes lower than a predetermined value, engine 172 is started and power is generated by motor generator 112 to store the power. Device 130 is charged.
- SOC State Of Charge
- the motor generator 114 is also an AC rotating electric machine, and, like the motor generator 112, is composed of, for example, a three-phase AC synchronous motor in which a permanent magnet is embedded in a rotor. Motor generator 114 generates driving force using at least one of the electric power stored in power storage device 130 and the electric power generated by motor generator 112. Then, the driving force of motor generator 114 is transmitted to driving wheels 176.
- the mechanical energy stored in the vehicle as kinetic energy or positional energy is used to drive the motor generator 114 via the drive wheels 176, and the motor generator 114 is Operates as a generator.
- motor generator 114 operates as a regenerative brake that converts running energy into electric power to generate braking force.
- the electric power generated by motor generator 114 is stored in power storage device 130.
- the power split device 174 includes a planetary gear including a sun gear, a pinion gear, a carrier, and a ring gear.
- the pinion gear engages with the sun gear and the ring gear.
- the carrier supports the pinion gear so as to be capable of rotating, and is connected to the crankshaft of the engine 172.
- the sun gear is connected to the rotation shaft of motor generator 112.
- the ring gear is connected to the rotation shaft of motor generator 114 and drive wheel 176.
- Motor generators 112 and 114 and power split device 174 form transaxle 110 shown in FIGS.
- the engine 172 is not shown in FIGS.
- System main relay SMR1 is arranged between power storage device 130 and boost converter 122.
- System main relay SMR1 electrically connects power storage device 130 to boost converter 122 when signal SE1 from ECU 140 is activated, and power storage device 130 and boost converter 122 when signal SE1 is deactivated. Break the electrical circuit between.
- Boost converter 122 boosts the voltage of positive line PL ⁇ b> 2 to a voltage equal to or higher than the output voltage of power storage device 130 based on signal PWC from ECU 140.
- Boost converter 122 is formed of a DC chopper circuit, for example.
- Inverters 124 and 126 are provided corresponding to motor generators 112 and 114, respectively.
- Inverter 124 drives motor generator 112 based on signal PWI 1 from ECU 140, and inverter 126 drives motor generator 114 based on signal PWI 2 from ECU 140.
- Inverters 124 and 126 are formed of, for example, a three-phase bridge circuit.
- boost converter 122 and inverters 124 and 126 form PCU 120 shown in FIGS.
- the secondary coil 182 is disposed coaxially with the secondary self-resonant coil 150, and can be magnetically coupled to the secondary self-resonant coil 150 by electromagnetic induction.
- the secondary coil 182 takes out the electric power received by the secondary self-resonant coil 150 by electromagnetic induction and outputs it to the rectifier 184.
- the rectifier 184 rectifies the AC power extracted by the secondary coil 182.
- DC / DC converter 186 converts the power rectified by rectifier 184 into a voltage level of power storage device 130 based on signal PWD from ECU 140 and outputs the voltage level to power storage device 130.
- System main relay SMR ⁇ b> 2 is arranged between DC / DC converter 186 and power storage device 130. When signal SE2 from ECU 140 is activated, system main relay SMR2 electrically connects power storage device 130 to DC / DC converter 186, and when signal SE2 is deactivated, system main relay SMR2 The electric path to the DC converter 186 is cut off.
- ECU 140 generates signals PWC, PWI1, and PWI2 for driving boost converter 122 and motor generators 112 and 114, respectively, based on signals from accelerator opening, vehicle speed, and other various sensors, and the generated signals.
- PWC, PWI1, and PWI2 are output to boost converter 122 and inverters 124 and 126, respectively.
- ECU 140 activates signal SE1 to turn on system main relay SMR1, and deactivates signal SE2 to turn off system main relay SMR2.
- the ECU 140 activates the signal SE2 and turns on the system main relay SMR2.
- ECU 140 generates a signal PWD for driving DC / DC converter 186 and outputs the generated signal PWD to DC / DC converter 186.
- the DC / DC converter 186 is not necessarily required, and the AC power extracted by the secondary coil 182 may be directly supplied to the power storage device 130 after being rectified by the rectifier 184.
- the secondary self-resonant coil 150 is installed substantially at the center of the bottom surface of the vehicle body.
- a high voltage is generated at the conductive wire end 160 of the secondary self-resonant coil 150, and a high electric field is generated around the conductive wire end 160.
- the conductor end 160 In order to move the conductor end 160 from the ECU 140 of the nearest electrical device, the conductor end on the opposite side (+ Y direction shown in FIG. 1) to the side ( ⁇ Y direction) where the ECU 140 is shifted with respect to the left-right symmetry axis of the vehicle body Secondary self-resonant coil 150 is arranged such that 160 is located.
- produces around the conducting wire end part 160 is suppressed. Therefore, according to this Embodiment 1, the bad influence to the vehicle-mounted electrical equipment (ECU140) of the high electric field part which generate
- FIG. 7 is a view of the arrangement of main parts of the electric vehicle according to the second embodiment as seen from the side of the vehicle.
- the arrangement when the main part of the electric vehicle is viewed from above is the same as that shown in FIG. Therefore, referring to FIG. 1 together with FIG. 7, in this electric vehicle 100 ⁇ / b> A, secondary self-resonant coil 150 is installed at a substantially central portion at the top of the vehicle body.
- the secondary self-resonant coil 150 is connected to the end of the coil in the opposite direction (+ Y direction shown in FIG. 1) to the direction ( ⁇ Y direction shown in FIG. 1) in which the ECU 140 is shifted with respect to the left-right symmetry axis of the vehicle. It arrange
- transaxle 110 the arrangement of other electric devices, that is, transaxle 110, PCU 120, power storage device 130, and ECU 140 is the same as that of electrically powered vehicle 100 according to the first embodiment.
- the power supply facility 200 is provided above the vehicle (+ Z direction).
- the secondary end in order to keep the conductor end 160 from the ECU 140 closest to the secondary self-resonant coil 150, the secondary end is arranged such that the conductor end 160 is positioned in the + Y direction with respect to the left-right symmetry axis of the vehicle body.
- a self-resonant coil 150 is disposed (FIG. 1).
- FIG. 8 is a view of the arrangement of the main parts of the electric vehicle according to the third embodiment as viewed from above the vehicle.
- FIG. 9 is a view of the arrangement of the main part of the electric vehicle shown in FIG. 8 as viewed from the rear of the vehicle.
- secondary self-resonant coil 150 is installed at the rear end of the vehicle body (the -X direction shown in FIG. 8).
- power storage device 130 is disposed close to the bottom of the vehicle body, and secondary self-resonant coil 150 is arranged such that conductive wire end 160 is positioned on the vehicle body upper side (+ Z direction shown in FIG. 9). (FIG. 9).
- transaxle 110 the arrangement of other electric devices, that is, transaxle 110, PCU 120, power storage device 130, and ECU 140 is the same as that of electrically powered vehicle 100 according to the first embodiment.
- the power supply facility 200 is provided behind the vehicle ( ⁇ X direction).
- the conductive wire in order to move the conductive wire end 160 away from the power storage device 130 of the electrical device closest to the secondary self-resonant coil 150, the conductive wire is connected to the power storage device 130 disposed close to the bottom of the vehicle body.
- Secondary self-resonant coil 150 is arranged such that end portion 160 is positioned on the upper side of the vehicle body. Therefore, according to the third embodiment, it is possible to suppress an adverse effect on the in-vehicle electric device (power storage device 130) of the high electric field portion that is generated at the time of power reception at a low cost. Further, according to the third embodiment, it is possible to suppress an adverse effect on the in-vehicle electric device (power storage device 130) of the high electric field portion that is generated at the time of receiving power without reducing the power supply.
- a secondary self-resonant coil 150 is disposed on the side of the vehicle body opposite to the ECU 140 (+ Y direction shown in FIG. 10) with respect to the left-right symmetric axis of the vehicle body. Also good.
- the conductive wire of the secondary self-resonant coil 150 is used. It is preferable to install secondary self-resonant coil 150 so that the end portion is located in the upward or downward direction of the vehicle body.
- the two conductor end portions 160 existing in the secondary self-resonant coil 150 are close to each other.
- the secondary self-resonant coil 150 may be installed so that the conductor end portions 160A and 160B are located in the + Y direction and the ⁇ Y direction, respectively. With such an arrangement, it is possible to suppress the influence on the ECU 140 of the high electric field portion generated around the conductive wire end portions 160A and 160B.
- each electrical device transaxle 110, PCU 120, power storage device 130, and ECU 140
- secondary self-resonant coil 150 in each of the above embodiments is an exemplification, and the scope of application of the present invention is the arrangement described above. It is not limited to the electric vehicle which has.
- the present invention can be applied to a vehicle in which the transaxle 110 and the PCU 120 are disposed at the rear of the vehicle body, a vehicle in which the ECU 140 is disposed in the + Y direction with respect to the left-right symmetric axis of the vehicle body, and the like.
- a series / parallel type hybrid vehicle has been described as an electric vehicle, in which the power of the engine 172 is divided by the power split device 174 and can be transmitted to the drive wheels 176 and the motor generator 112. It can also be applied to other types of hybrid vehicles. That is, for example, a so-called series-type hybrid vehicle that uses the engine 172 only to drive the motor generator 112 and generates the driving force of the vehicle only by the motor generator 114, or regenerative energy among the kinetic energy generated by the engine 172 The present invention can also be applied to a hybrid vehicle in which only the electric energy is recovered, a motor assist type hybrid vehicle in which the motor assists the engine as the main power if necessary.
- the present invention can also be applied to an electric vehicle that does not include the engine 172 and travels only by electric power, and a fuel cell vehicle that further includes a fuel cell as a DC power supply in addition to the power storage device 130.
- the present invention is also applicable to an electric vehicle that does not include boost converter 122 and an electric vehicle that does not include DC / DC converter 186.
- motor generators 112 and 114, PCU 120, power storage device 130, and ECU 140 included in transaxle 110 correspond to “electric equipment” in the present invention.
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Abstract
Description
好ましくは、二次自己共振コイルは、二次自己共振コイルに最も近接する電気機器から導線端部を遠ざけるように配置される。
図1は、この発明の実施の形態1による電動車両の主要部の配置を車両上方からみた図である。また、図2は、図1に示した電動車両の主要部の配置を車両側方からみた図である。
図7は、実施の形態2による電動車両の主要部の配置を車両側方からみた図である。なお、この電動車両の主要部を車両上方からみた場合の配置は図1と同じである。そこで、図7とともに図1を参照して、この電動車両100Aにおいては、二次自己共振コイル150は、車体上部の略中央部に据付けられる。そして、二次自己共振コイル150は、車両の左右対称軸に対してECU140がずらされた方向(図1に示す-Y方向)と反対方向(図1に示す+Y方向)にコイルの導線端部160が位置するように配設される(図1)。
図8は、実施の形態3による電動車両の主要部の配置を車両上方からみた図である。また、図9は、図8に示した電動車両の主要部の配置を車両後方からみた図である。
Claims (6)
- 電力によって車両の駆動力を発生可能な電動車両であって、
予め定められた位置に据付けられ、車両外部の給電設備(200)に設けられる一次自己共振コイル(220)と電磁場を介して共鳴することにより前記一次自己共振コイルから非接触で受電する二次自己共振コイル(150)と、
前記二次自己共振コイルによって受電された電力を蓄電可能な蓄電装置(130)、車両の駆動力を発生する電動機(110)、前記二次自己共振コイルによって受電された電力を用いて前記電動機を駆動する駆動装置(120)、および前記駆動装置を制御する電子制御装置(140)の少なくとも1つを含む電気機器とを備え、
前記二次自己共振コイルは、前記二次自己共振コイルの導線端部(160)と前記電気機器との間の距離が最も確保されるように配置される、電動車両。 - 前記二次自己共振コイルは、端部が開放されたLC共振コイルである、請求の範囲第1項に記載の電動車両。
- 前記二次自己共振コイルは、前記二次自己共振コイルに最も近接する前記電気機器から前記導線端部を遠ざけるように配置される、請求の範囲第1項に記載の電動車両。
- 前記電動機および前記駆動装置は、車体前方に配設され、
前記蓄電装置は、車体後方に配設され、
前記電子制御機器は、車体前後方向について前記電動機および前記駆動装置と前記蓄電装置との間であって、車体の左右対称軸から左右のいずれかにずれた位置に配設され、
前記二次自己共振コイルは、車体底面の略中央部に据付けられ、前記左右対称軸に対して前記電子制御機器がずらされた側と反対側に前記導線端部が位置するように配置される、請求の範囲第1項から第3項のいずれかに記載の電動車両。 - 前記電動機および前記駆動装置は、車体前方に配設され、
前記蓄電装置は、車体後方に配設され、
前記電子制御機器は、車体前後方向について前記電動機および前記駆動装置と前記蓄電装置との間であって、車体の左右対称軸から左右のいずれかにずれた位置に配設され、
前記二次自己共振コイルは、車体上部の略中央部に据付けられ、前記左右対称軸に対して前記電子制御機器がずらされた側と反対側に前記導線端部が位置するように配置される、請求の範囲第1項から第3項のいずれかに記載の電動車両。 - 前記電動機および前記駆動装置は、車体前方に配設され、
前記蓄電装置は、車体後方において車体底面に近接して配設され、
前記電子制御機器は、車体前後方向について前記電動機および前記駆動装置と前記蓄電装置との間に配設され、
前記二次自己共振コイルは、車体最後方に据付けられ、前記導線端部が車体上部側に位置するように配置される、請求の範囲第1項から第3項のいずれかに記載の電動車両。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/129,742 US8294419B2 (en) | 2008-11-21 | 2008-11-21 | Electrical powered vehicle |
| EP08878274.3A EP2360049B1 (en) | 2008-11-21 | 2008-11-21 | Electric vehicle |
| CN2008801320368A CN102216110B (zh) | 2008-11-21 | 2008-11-21 | 电动车辆 |
| PCT/JP2008/071215 WO2010058477A1 (ja) | 2008-11-21 | 2008-11-21 | 電動車両 |
| JP2010539094A JP5083413B2 (ja) | 2008-11-21 | 2008-11-21 | 電動車両 |
| US13/109,691 US8380380B2 (en) | 2008-11-21 | 2011-05-17 | Electric power reception apparatus and electrical powered vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/071215 WO2010058477A1 (ja) | 2008-11-21 | 2008-11-21 | 電動車両 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US13/109,691 Continuation-In-Part US8380380B2 (en) | 2008-11-21 | 2011-05-17 | Electric power reception apparatus and electrical powered vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010058477A1 true WO2010058477A1 (ja) | 2010-05-27 |
Family
ID=42197924
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/071215 Ceased WO2010058477A1 (ja) | 2008-11-21 | 2008-11-21 | 電動車両 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US8294419B2 (ja) |
| EP (1) | EP2360049B1 (ja) |
| JP (1) | JP5083413B2 (ja) |
| CN (1) | CN102216110B (ja) |
| WO (1) | WO2010058477A1 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2010058477A1 (ja) | 2012-04-12 |
| JP5083413B2 (ja) | 2012-11-28 |
| EP2360049A1 (en) | 2011-08-24 |
| US8294419B2 (en) | 2012-10-23 |
| US20110309790A1 (en) | 2011-12-22 |
| EP2360049B1 (en) | 2016-04-20 |
| CN102216110B (zh) | 2013-12-04 |
| CN102216110A (zh) | 2011-10-12 |
| US20110276208A1 (en) | 2011-11-10 |
| US8380380B2 (en) | 2013-02-19 |
| EP2360049A4 (en) | 2014-10-08 |
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