WO2013131243A1 - Device and method for use in valley hour charging - Google Patents

Abstract

A method for use in valley hour charging, where a charging device (201) is connected to a motor vehicle (211). The method comprises: A. acquiring charging state information, where the charging state information comprises a current power level, a rated capacity, and a charging power (401); B. acquiring a valley hour charging demand, and calculating a charging time period and/or an estimated cost on the basis of the valley hour charging demand and of the charging state information (402); C. displaying the charging time period and/or the estimated cost (403); D. acquiring charging instruction information (404); and, E. if valley hour charging is selected in the charging instruction information, then performing valley hour charging for the motor vehicle (405); otherwise, no valley hour charging is performed.

Description

 Device and method for charging in valley period

 The present invention relates to the field of power applications, and in particular to an apparatus and method for valley charging. Background technique

 At present, the greenhouse effect hazard has increased year by year and the shortage of oil has become more and more serious. Traditional cars have further aggravated the increasingly serious environmental pollution and energy shortage. Electric vehicles are highly efficient and have low emissions, which can fundamentally reduce dependence on oil, increase the use of renewable energy, and reduce emissions of carbon dioxide and pollutants. Countries all over the world have made huge amounts of money to carry out electric vehicle technology, especially in the core power supply system and drive system, and have made a lot of research and made great progress.

 An electric vehicle is a vehicle that is driven by a motor in whole or in part. At present, there are mainly pure electric vehicles, hybrid vehicles, fuel cell electric vehicles, and external plug-in hybrid vehicles. In order to supply electric power to electric vehicles, a charging device capable of charging an electric vehicle must be provided. At present, electric vehicle charging equipment mainly includes charging piles, charging stations, and the like.

 Generally speaking, the charging pile is relatively simple, has a small footprint, is easy to install, can be installed in an electric vehicle charging station, a public parking lot, and is easy to operate, and is an important electric vehicle charging facility. Similar to the car filling station, the charging station is a larger type of "power station" that can quickly charge mobile phones, electric vehicles, electric vehicles and other equipment. It can charge several sets to dozens of battery packs at the same time. High-power off-board chargers quickly charge the battery directly, or you can use a non-vehicle or on-board charger to slowly charge the battery.

In the power system, the electrical load is usually changed with time. Usually, the daily is divided into three stages: peak, flat and trough. It can also be divided into more time periods or two time periods. Due to the large amount of electricity used during the peak period, it is prone to overload, which is not conducive to the safe operation of the equipment. The low power consumption in the low valley stage and the low grid load rate are also not conducive to the normal operation of the equipment. So how Peaking Pinggu is an important issue that the power system needs to solve.

 Increasingly, electric vehicles may exacerbate the problem of excessive peak load power, which is not considered in charging devices such as charging posts and charging stations in the prior art. In order to solve this problem, it is necessary to make full use of the "Valley" to charge non-emergency, non-instant electric vehicles. The object of the present invention is to address this problem and to propose a method of making full use of the valley period electricity. Summary of the invention

 In order to solve the above problems, according to an aspect of the present invention, a method for valley charging is provided, the charging device is connected to a motor vehicle, the method comprising: A. acquiring charging state information, the charging state information including current Electricity, rated power and charging power; B. Obtain the demand for the valley period charge, and calculate the charging time period and/or estimated cost according to the valley period charging demand and charging status information; C. Display the charging time period and/or estimated cost; D. Acquiring the charging indication information; E. If the charging indication information selects the valley charging, the vehicle is charged in the valley period; otherwise, the valley charging is not performed.

 According to an aspect of the present invention, a method for valley charging is provided to connect a charging device to a motor vehicle, the method comprising: A. acquiring charging state information, the charging state information including current power, rated power, and Charging power; B. Obtain immediate charging demand and valley charging demand, and calculate charging time period and/or estimated cost according to immediate charging demand, valley charging demand and charging status information; C. Display charging time Segment and/or estimated cost; D. Acquiring charging indication information; E. If the charging indication information indicates that immediate charging and valley charging are selected, the vehicle is immediately charged and charged in the valley; otherwise, the charging and valley are not performed immediately. Charging.

 Preferably, wherein in step C, if the charging time period and/or the estimated cost of the display are not accepted, steps B and C are repeated until acceptance. Preferably, if the displayed charging time period and/or the estimated cost are not accepted, the valley charging demand amount or the immediate charging demand amount and the valley charging demand amount may be repeatedly obtained, and the charging time period and/or the estimated cost may be repeatedly calculated. Until accept.

Preferably, wherein the valley period charge demand amount and/or the immediate charge demand amount is: a final amount or an increase amount; and the charge demand amount is represented by one of the following contents: travel distance, battery amount The percentage of the capacity, the degree of charge, the length of the charge, or the amount of the electricity bill.

 Preferably, wherein the charging demand is a charging demand input by the user or a preset charging demand of the system.

 Preferably, wherein the charge demand amount is calculated based on the travel distance, and the charge demand amount is converted into the charge time period based on the charge state information.

 Preferably, wherein the charge demand amount is calculated based on the electricity rate, and the charge amount is converted into the charge time period based on the charge state information.

 Preferably, the method further includes displaying at least one of the following: a charging start time, a charging end time, a charging start electric quantity, a charging end electric quantity, a distance that can be traveled before charging starts, a distance that can be traveled when charging ends, or a charging electricity fee.

 Preferably, the method further comprises storing, by the storage unit in the charging device, at least one of: a valley start time, a valley end time, electricity price information; or storing at least one of the following contents by a storage unit in the motor vehicle: Period start time, valley end time, electricity price information.

 Preferably, after the valley charging is not performed or after the immediate charging and the valley charging are not performed, one of the following charging modes can also be selected according to the charging indication information: immediate charging, timed charging, non-peak charging, Lowest valley charging, immediate charging and non-peak charging, immediate charging and lowest valley charging. Preferably, wherein the immediate charging and the non-peak charging indicate: a charging mode combining a charging mode of the immediate charging and the non-peak charging. Preferably, wherein the immediate charging and the lowest valley charging indicate: a charging mode combining a charging mode of the immediate charging and a lowest valley charging.

 According to an aspect of the invention, a method for valley charging is provided, the charging device being connected to a motor vehicle, the method comprising: A. displaying charging prompt information; B. acquiring charging indication information; C. if said The charging indication information indicates that the valley charging is selected, and the vehicle is charged in the valley period; otherwise, the valley charging is not performed.

According to an aspect of the present invention, a charging apparatus for a valley charging is provided, the charging apparatus being connected to a motor vehicle, the charging apparatus comprising: a control unit, a display unit, and an input unit, wherein the control unit acquires Charging status information, the status information includes current power, rated power, and charging power; obtaining the demand for the valley charging, and charging according to the valley period The quantity and state of charge information calculates a valley charging period and/or an estimated cost; charging the vehicle for the valley; the display unit displays the valley charging period and/or the estimated fee; and the input unit obtains the charging indication information.

 According to an aspect of the present invention, a charging apparatus for a valley charging is provided, the charging apparatus being connected to a motor vehicle, the charging apparatus comprising: a control unit, a display unit, and an input unit, wherein the control unit acquires Charging status information, the status information includes current power, rated power, and charging power; obtaining an immediate charging demand and a valley charging demand, and calculating a charging time period according to the immediate charging demand, the valley charging demand, and the charging state information And/or estimated cost; immediate charging and valley charging of the motor vehicle; display unit, displaying charging time period and/or estimated cost; and input unit for obtaining charging indication information.

 Preferably, wherein the valley period charging demand and/or the immediate charging demand amount is: a final amount or an increasing amount; and the charging demand amount is represented by one of the following: driving distance, percentage of battery rated capacity, charging degree , the length of charging time or the amount of electricity.

 Preferably, wherein the charging demand is a charging demand input by the user or a preset charging demand of the system.

 Preferably, wherein the charge demand amount is calculated based on the travel distance, and the charge demand amount is converted into the charge time period based on the charge state information.

 Preferably, wherein the charge demand amount is calculated based on the electricity rate, and the charge amount is converted into the charge time period based on the charge state information.

 Preferably, the method further includes displaying at least one of the following: a charging start time, a charging end time, a charging start electric quantity, a charging end electric quantity, a distance that can be traveled before charging starts, a distance that can be traveled when charging ends, or a charging electricity fee.

 Preferably, the method further comprises storing, by the storage unit in the charging device, at least one of: a valley start time, a valley end time, electricity price information; or storing at least one of the following contents by a storage unit in the motor vehicle: Period start time, valley end time, electricity price information.

According to an aspect of the present invention, a charging apparatus for a valley charging is provided, the charging apparatus being connected to a motor vehicle, the charging apparatus comprising: a control unit, a display unit, and an input unit, The display unit displays charging indication information; the input unit acquires charging indication information; and the control unit performs valley charging on the motor vehicle if the charging indication information indicates that the valley charging is selected.

 Many of the techniques described herein can be implemented in hardware, firmware, software, or a combination thereof. In one example, the above techniques are implemented in a computer program executed on a programmable computer, each programmable computer comprising a processor, a processor readable storage medium (including volatile and nonvolatile memory and/or Storage elements), as well as suitable input and output devices. The program code is applied to data entered using an input device to perform the functions described and to generate output information. Apply output information to one or more output devices. Moreover, each program is preferably implemented using a high level procedural or object oriented programming language to communicate with a computer system. However, the above procedure can be implemented in assembly or machine language, if desired. In any case, the language can be a compiled or interpreted language.

DRAWINGS

 These and further features and advantages of the present invention will be better understood from the following detailed description of the preferred exemplary embodiments.

 1 is a schematic view showing the structure of charging an electric vehicle using a charging post in the prior art;

 2 is a schematic view showing the structure of charging a motor vehicle in a valley according to an embodiment of the present invention;

 3 is a schematic structural view showing a valley charging of a motor vehicle according to another embodiment of the present invention;

 4 is a flow chart for valley charging according to an embodiment of the present invention; FIG. 5 is a flow chart for immediate charging and valley charging according to an embodiment of the present invention;

6 is a flow chart for valley charging in accordance with another embodiment of the present invention. detailed description The exemplary embodiments of the present invention are now described with reference to the accompanying drawings, and the invention may be embodied in many different forms and not limited to the embodiments described herein. The invention, and the scope of the invention is fully conveyed by those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to limit the invention. In the figures, the same elements/elements are given the same reference numerals.

 As used herein, the terms "a", "an", "the" In addition, it should be understood that the terms "comprising", "comprising", "","" Or a plurality of features, entities, steps, operations, units, components, and/or groups having them. It will be understood that when a unit is referred to as being "connected" or "coupled" to another unit, it can be directly connected or coupled to another unit, or an intermediate unit can be present. Further, "connected" or "coupled" as used herein includes a wireless connection or coupling. The term "and / or" as used herein includes any and all combinations of one or more of the associated items listed.

 Unless otherwise stated, the terms (including technical and scientific terms) used herein have the ordinary meaning of meaning to those skilled in the art. In addition, it is to be understood that a term defined by a commonly used dictionary should be understood to have a meaning consistent with the context of its related art, and should not be construed as an idealized or overly formal meaning.

 Fig. 1 is a schematic view showing the structure of charging an electric vehicle using a charging post in the prior art. As shown in FIG. 1, the structure includes a charging post 101 and an electric car 111. The charging post 101 may include: a display unit 102, a control unit 103, and a power supply unit 104. The electric vehicle 111 may include: a terminal control unit 112, a battery management unit 113, and a battery 114. When the electric motor vehicle 111 is connected to the charging post 101 through the power transmission line 122, the charging post 101 can charge the electric vehicle 111 through the power transmission line 122. The charging post 101 can also charge the electric vehicle 111 in an electromagnetically inductive manner, at which time the power transmission line 122 is not required. The electric vehicle 111 can also be communicatively coupled to the charging post 101 via a wired or wireless communication line 121. The electric vehicle 111 and the charging post 101 can transmit various data such as battery status information and the like to each other through a communication line.

In the prior art, the display unit 102 can display a state of charge, such as a percentage of charged information, a remaining time of charging, and the like. The control unit 103 passes the data from the battery management unit 113 The display data is determined, and the display data is supplied to the display unit 102. The control unit 103 controls the power supply unit 104 to charge the electric vehicle 111. The terminal control unit 112 is a core control unit inside the electric vehicle 111, and realizes control of various functions of the electric vehicle 111. The battery 114 is capable of storing electrical energy and is capable of providing direct current when the electric vehicle is traveling. A Battery Management System (BMS) 113 is connected between the battery 114 and the terminal control unit 112 for improving the utilization of the battery, preventing overcharging and overdischarging of the battery, prolonging the service life of the battery, and monitoring the state of the battery. Wait. Preferably, the electric vehicle 111 may further include a power supply unit (not shown in FIG. 1) for converting the alternating current input from the charging post 101 into direct current, thereby storing the converted direct current in the battery 114.

 In the prior art. The charging process is related to the characteristics of the power battery. For example, lead-acid batteries often include pre-charging, constant-current charging, constant-voltage charging, and floating charging. In order to reduce the polarization effect, a reverse discharge pulse can also be mixed in the middle. When monitoring problems such as overheating, it is still allowed to stand. . Electric vehicles The charging of commonly used lithium-ion batteries generally includes constant current charging, constant voltage charging, and protection against overheating. When the temperature is too high, the charging is suspended. The method provided by the present invention is identical to the above charging method, and the controller calculates the charging period and/or the electricity rate according to the normal charging process, and performs charging according to the setting mode. At least the charging process is carried out in the valley period, or divided into two phases of immediate charging and valley charging, and the valley charging phase is put into the valley period.

 However, in the prior art, the charging post 101 cannot guarantee that the electric vehicle 111 is charged during the electricity season. To this end, the present invention proposes an apparatus and method capable of charging a consumer such as an electric vehicle in the valley period.

2 is a schematic view showing the structure of performing a valley charging of a motor vehicle according to an embodiment of the present invention. As shown in FIG. 2, the structure includes a charging device 201 and a motor vehicle 211. The charging device 201 can be a charging station, a charging post, or the like that can charge a power device. The motor vehicle 211 may be a motor vehicle that uses electric energy as a power such as an electric car, an electric bicycle, or an electric tricycle. The present invention is described by taking an electric vehicle as an example, but the present invention is not limited to an electric vehicle, but can be applied to other electric devices. In addition, the electric vehicle is a vehicle in which all or part of the electric motor is used as a power system, including a pure electric vehicle, a hybrid electric vehicle, a fuel cell electric vehicle, and an external plug-in hybrid vehicle. Preferably, when the motor vehicle 211 is connected to the charging device 201 via a wired or wireless transmission line 222, the charging device 201 can charge the motor vehicle 211 via a wired or wireless transmission line 222. Preferably, the wired transmission line is, for example, a cable, and the wireless transmission line may be electromagnetically induced. Preferably, the motor vehicle 211 can also be in communication connection with the charging device 201 via a wired or wireless communication line 221. Preferably, the wired communication line is, for example, an optical fiber, a twisted pair, or the like. In addition, the motor vehicle 211 and the charging device 201 can transmit various data to each other through the communication line 221, such as the current power, rated power, and charging power of the motor vehicle, or the like, or may be a charging time period and an estimated fee. Preferably, the charging power generally includes two aspects, one is a power curve allowed by the charging process of the motor vehicle or a description equivalent to the power curve, which is usually obtained from a battery management system of the motor vehicle; and the second is the maximum charging allowed by the charging device. power. The smaller of the two should be used when actually charging and calculating the charging period and/or estimated cost.

 According to a preferred embodiment of the present invention, the charging device 201 may include: a display unit 202, a control unit 203, and an input unit 204. Preferably, the charging device 201 may further include a power supply unit 205 for converting the input alternating current into direct current, thereby transmitting the converted direct current to the motor vehicle 211, thereby storing the converted direct current in the battery 214. Preferably, a power supply unit (not shown) is also provided in the motor vehicle 211 for converting the alternating current input from the charging device 201 into direct current, thereby storing the converted direct current in the battery 214.

 Preferably, display unit 202 can display a charging time period and/or an estimated fee. Preferably, the charging period and/or the electricity rate is at least one of the following: a charging start time, a charging end time, a charging start electric quantity, a charging end electric quantity, a distance that can be traveled before charging starts, and a driving time at the end of charging. Distance or charge for electricity. Preferably, display unit 202 can display a charging mode, such as immediate charging and/or valley charging. Preferably, display unit 202 can be a touch screen.

Preferably, the control unit 203 can acquire charging status information. The charging status information may be current power, rated power, and charging power. Preferably, the current power and the rated power are obtained by the battery management system of the motor car 211. According to an embodiment of the present invention, when the power supply unit is disposed in the motor vehicle 211, the motor vehicle 211 acquires information of the charging power. Preferably, when the power supply unit is disposed in the charging device 201, charging is obtained from the charging device 201. Power information.

 Preferably, the control unit 203 can obtain the valley charge amount demand and/or the immediate charge demand amount. Preferably, the control unit 203 can obtain the valley charge amount demand and/or the immediate charge demand amount via the display unit 202 or via the input unit 204. Preferably, the valley charge amount demand and/or the immediate charge demand amount may be: a final amount or an increase amount, that is, a final charge amount or an increased charge amount. Preferably, the trough charge demand and/or the immediate charge demand are represented by one of the following: travel distance, percentage of battery rated capacity, degree of charge, length of charge time, or electricity bill. Preferably, the valley charge demand demand and/or the immediate charge demand amount may be a user input charge demand amount or a system preset charge demand amount. Preferably, since the power at the end of the charging process is small and the time is long, the preset charging demand of the system may be less than the rated power, for example, 98%, 95%, 90% of the rated power or other appropriate amount, according to the calculation thereof. And display the charging period and / or estimated cost. However, when the actual charging is performed, after the preset charging demand of the system is completed, the charging can be continued to the rated power. Preferably, wherein the charge demand amount is calculated according to the travel distance, and the charge demand amount is converted into the charging time period according to the charge state information. Preferably, the charge demand amount is calculated based on the electricity rate, and the charge amount is converted into the charge time period based on the charge state information.

 According to a preferred embodiment of the present invention, if the valley charge demand is obtained, the control unit 203 calculates the charging time period and/or the estimated fee based on the valley charge demand amount and the charge state information. Preferably, if it is calculated and displayed that the charging time period and/or the estimated cost are not accepted, the valley period charging demand amount and/or the immediate charging demand amount may be repeatedly obtained, and the valley period charging demand amount and the charging state information are calculated. Charging time period and / or estimated cost.

 The control unit 203 analyzes the charging instruction information acquired from the input unit 204. If the charging indication information selects the valley charging, the control unit 203 performs the valley charging of the motor vehicle. Preferably, during actual charging, the calculated charging period may be time-tuned according to the amount of charging demand, that is, the charging period is moved forward or backward in time (for example, several seconds or minutes). Preferably, the charging may be performed according to the acquired demand for the valley period, or may be charged according to the estimated period of time.

Preferably, if the charging indication information does not select the valley charging, the valley charging is not performed. Preferably, the charging indication information may also indicate to select one or more of the following: immediate charging, timed charging, non-peak charging, or lowest valley charging. Preferably, the timing charging refers to charging during a time period specified by a user. Preferably, non-peak charging refers to charging at a time other than the peak period. Preferably, the lowest valley charge refers to charging during the period of lowest power usage, which is usually in the valley period, and is a period of low power usage in the valley period.

 According to a preferred embodiment of the present invention, if the immediate charge demand amount and the valley charge demand amount are acquired, the control unit 203 calculates the charging time period and/or according to the immediate charge demand amount, the valley charge demand amount, and the charge state information. approximate cost. Preferably, if the calculation and display of the charging time period and/or the estimated cost are not accepted, the immediate charging demand and the valley charging demand amount may be repeatedly obtained, and according to the immediate charging demand amount, the valley charging demand amount, and the charging state. The information calculates the charging period and/or the estimated cost.

 The control unit 203 analyzes the charging instruction information acquired from the input unit 204. If the charging indication information selects immediate charging and valley charging, the control unit 203 performs immediate charging and valley charging on the vehicle. Preferably, during actual charging, the calculated charging period may be time-tuned according to the amount of charging demand, that is, the charging period is moved forward or backward in time for a period of time (for example, several seconds or minutes). Preferably, the charging may be performed according to the obtained charging demand amount, or may be charged according to the estimated time period.

 Preferably, if the charging indication information does not select immediate charging and valley charging, immediate charging and valley charging are not performed. Preferably, the charging indication information may also indicate to select one or more of the following: immediate charging, timed charging, non-peak charging, or lowest valley charging. Preferably, the timing charging refers to charging during a time period specified by a user. Preferably, non-peak charging refers to charging at a time other than the peak period. Preferably, the lowest valley charge refers to charging during the period of lowest power usage, which is typically in the valley period, and is the period of low power usage in the valley period.

 According to a preferred embodiment of the present invention, if the charging indication information acquired by the control unit 203 indicates that the valley charging is selected, the vehicle is subjected to valley charging; otherwise, the valley charging is not performed.

Preferably, the input unit 204 is configured to acquire charging indication information. Preferably, the charging indication information may indicate that the valley charging mode is selected for selection. Preferably, the charging indication information is further You may be prompted to choose one or more of the following: immediate charging, timed charging, off-peak charging, or lowest valley charging. Preferably, the timing charging refers to charging during a time period specified by a user. Preferably, non-peak charging refers to charging at a time other than the peak period. Preferably, the lowest valley charge refers to charging during the period of lowest power usage, which is usually in the valley period, and is a period of low power usage in the valley period. Preferably, when the trough charging is performed, charging is initiated at the beginning of the trough period until the trough charging demand is completed. When one valley period cannot be completed, charging continues in other time periods or the next valley period to complete the valley period charging demand. Preferably, other time periods may include a non-peak period, a lowest valley period, and the like.

 Preferably, the power unit 205 can provide the vehicle with the power required for immediate charging, valley charging or immediate charging and valley charging. Preferably, if the power obtained by the charging device 201 is AC, the AC power can be converted to DC power by the power source unit 205 in the charging device 201, then the DC power is transmitted to the motor vehicle 211, and then the battery is charged with DC power. Preferably, if the electric power obtained by the charging device 201 is an alternating current, the alternating current can be directly transmitted to the motor vehicle 211, the alternating current power is converted into direct current by a power supply unit (not shown) in the motor vehicle 211, and then the battery is charged with the direct current. Preferably, if the power obtained by the charging device 201 is direct current, the direct current can be directly transmitted to the motor vehicle 211, and then the battery is charged with direct current. Preferably, preferably, if the electric power obtained by the charging device 201 is direct current, rectification may be performed by the power supply unit in the motor vehicle 211 or the charging device 201, and then the rectified direct current is used to charge the battery.

 Preferably, the charging device 201 may further include a storage unit (not shown in FIG. 2), the storage unit storing at least one of the following: a valley start time, a valley end time, electricity price information; or storage in a motor vehicle The unit stores at least one of the following: valley start time, valley end time, and electricity price information.

According to a preferred embodiment of the present invention, the motor vehicle 211 includes: a terminal control unit 212, a battery management system 213, and a battery 214. Preferably, the motor vehicle 211 may further include a power supply unit (not shown). Preferably, the terminal control unit 212 is a core control component inside the electric vehicle, and realizes control of various functions of the electric vehicle. Battery 214 is capable of storing electrical energy and is capable of The electric car provides direct current when driving. The battery management system 213 is connected between the battery 214 and the terminal control unit 212 for improving the utilization of the battery, preventing overcharging and overdischarging of the battery, prolonging the service life of the battery, monitoring the state of the battery, and the like.

 Fig. 3 is a view showing the structure of a valley charging of a motor vehicle according to another embodiment of the present invention. As shown in FIG. 3, the structure includes a charging device 301 and a motor vehicle 311. The structure shown in Fig. 3 differs from the structure shown in Fig. 2 in that the charging device 301 of Fig. 3 further includes a communication unit. Preferably, the communication unit 307 can be wired or wirelessly connected to the motor vehicle 311, and the communication unit 307 can transmit the charging status information to the motor vehicle 311 in a wired or wireless manner. Preferably, the communication unit 307 is capable of communicating with a user communication device, which may be a cell phone, personal digital processing, laptop computer, personal computer or the like. The communication unit 307 is capable of wirelessly transmitting the charging status information to the user's communication device and is capable of wirelessly receiving user commands from the user's communication device.

 Figure 4 illustrates a flow diagram for valley charging in accordance with one embodiment of the present invention. As shown in Figure 4, the method begins at step 400 by connecting the charging device to the vehicle and performing the necessary initialization. In step 401, charging status information is acquired, and the charging status information includes current power, rated power, and charging power. The battery management system is connected between the battery and the terminal control unit to improve battery utilization, prevent overcharging and overdischarging of the battery, extend battery life, and monitor battery status.

 At step 402, a valley demanding demand is obtained, and a charging time period and/or an estimated cost is calculated based on the valley charging demand amount and the charging state information.

 At step 403, a charging time period and/or an estimated fee are displayed;

 At step 404, obtaining charging indication information;

 In step 405, if the charging indication information selects the valley charging, the vehicle is subjected to valley charging; otherwise, the valley charging is not performed.

 Preferably, if it is calculated and displayed that the charging time period and/or the estimated cost are not accepted, the valley period charging demand amount and/or the immediate charging demand amount may be repeatedly obtained, and the valley period charging demand amount and the charging state information are calculated. Charging time period and / or estimated cost.

Preferably, if the charging indication information does not select the valley charging, the valley charging is not performed. Thereafter, one or more of the following may be selected according to the charging indication information: immediate charging, timed charging, non-peak charging, or lowest valley charging.

 Figure 5 shows a flow diagram for immediate charging and valley charging, in accordance with one embodiment of the present invention. As shown in Figure 5, the method begins at step 500 by connecting the charging device to the motor vehicle and performing the necessary initialization. In step 501, charging status information is acquired, where the charging status information includes current power, rated power, and charging power;

 At step 502, an immediate charging demand amount and a valley charging demand amount are obtained, and a charging time period and/or an estimated fee are calculated according to the immediate charging demand amount, the valley charging demand amount, and the charging state information;

 At step 503, a charging time period and/or an estimated fee are displayed;

 At step 504, obtaining charging indication information;

 At step 505, if the charging indication information indicates that immediate charging and valley charging are selected, the vehicle is immediately charged and valley charged; otherwise, immediate charging and valley charging are not performed.

 Preferably, if the calculation and display of the charging time period and/or the estimated cost are not accepted, the immediate charging demand and the valley charging demand amount may be repeatedly obtained, and the immediate charging demand, the valley charging demand amount, and The charging status information calculates a charging time period and/or an estimated cost.

 Preferably, if the charging indication information does not select the valley charging, after the valley charging is not performed, one or more of the following contents may also be selected according to the charging indication information: immediate charging, timed charging, non-peak charging , or the lowest valley to charge.

 Figure 6 shows a flow chart for valley charging in accordance with one embodiment of the present invention. As shown in Figure 6, the method begins at step 600 by connecting the charging device to the vehicle and performing the necessary initialization.

 Step 601, displaying charging prompt information;

 Step 602: Acquire charging indication information.

 Step 603: If the charging indication information indicates that the valley charging is selected, the vehicle is charged in the valley period; otherwise, the valley charging is not performed.

The invention has mainly been described by reference to a few embodiments. However, as is known to those skilled in the art, as defined by the appended patent claims, in addition to the above disclosed invention Other embodiments are equivalently within the scope of the invention.

 Generally, all terms used in the claims are interpreted according to their ordinary meaning in the technical field unless otherwise explicitly defined. All references to "a/the/the [device, component, etc.]" are openly interpreted as at least one instance of the device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein are not required to operate in the precise order disclosed, unless explicitly stated.

 In the foregoing detailed description, reference to the drawings in the claims Some variations of these embodiments and embodiments have been described in sufficient detail to enable those skilled in the art to practice the embodiments of the invention. It is understood that other suitable embodiments can be used and logical, mechanical, chemical, and electrical changes can be made without departing from the spirit or scope of the disclosure. To avoid unnecessary detail, the description omits information known to those skilled in the art. Therefore, the above detailed description is not intended to be limited to the details of the embodiments of the invention, and the invention is intended to cover such alternatives, modifications, and equivalents.

Claims

Rights request A method for valley charging, the method comprising:  A. Obtaining charging status information, where the charging status information includes current power, rated power, and charging power;  B. Obtain the demand for the valley period charge, and calculate the charging time period and/or the estimated cost according to the valley period charging demand and the charging status information;  C. Display charging period and / or estimated cost;  D. Obtain charging indication information;  E. If the charging indication information selects the valley charging, the vehicle is charged in the valley period; otherwise, the valley charging is not performed.  2. A method for valley charging, the method comprising:  A. Obtaining charging status information, where the charging status information includes current power, rated power, and charging power;  B. Obtain the immediate charging demand and the valley charging demand, and calculate the charging time period and/or the estimated cost according to the immediate charging demand, the valley charging demand and the charging status information;  C. Display charging period and / or estimated cost;  D. Obtain charging indication information;  E. If the charging indication information indicates that immediate charging and valley charging are selected, the vehicle is immediately charged and valley charged; otherwise, immediate charging and valley charging are not performed.  The method according to claim 1 or 2, wherein the step C further comprises, if the charging period and/or the estimated fee for the displayed valley period is not accepted, returning to step B.  The method according to claim 1 or 2, wherein the valley charge amount demand amount and/or the immediate charge demand amount is: a final amount or an increase amount; and the charge demand amount is represented by one of the following contents: Distance, percentage of battery rated capacity, degree of charge, length of charge time, or amount of electricity. 5. The method according to claim 4, wherein the charging demand is a charging demand input by a user or a charging demand amount preset by the system. The method according to claim 1 or 2, further comprising displaying at least one of: a charging start time, a charging end time, a charging start electric quantity, a charging end electric quantity, a distance that can be traveled before charging starts, charging The distance that can be traveled at the end or the charging electricity fee.  7. A method for valley charging, the method comprising:  A. Display charging prompt information;  B. Obtain charging indication information;  C. If the charging indication information indicates that the valley charging is selected, the vehicle is charged in the valley; otherwise, the valley charging is not performed.  The method according to one of claims 1, 2 or 7, further comprising storing at least one of the following contents by a storage unit in the charging device: a valley start time, a valley end time, electricity price information; or The storage unit in the motor vehicle stores at least one of the following: a valley start time, a valley end time, and electricity price information.  9. The method according to claim 1, 2 or 7, after the valley charging is not performed or after the immediate charging and the valley charging are not performed, one of the following charging modes can also be selected according to the charging indication information. : Immediate charge, timed charge, off-peak charge, lowest valley charge, immediate charge and off-peak charge, or immediate charge and lowest valley charge.  10. A charging device for valley charging, the charging device comprising: a control unit, a display unit, and an input unit, wherein  The control unit obtains charging status information, where the status information includes current power, rated power, and charging power; acquires the demand for the valley period, and calculates the valley charging period according to the valley charging demand and the charging status information. Or estimated cost; charging the motor vehicle during the valley period;  a display unit that displays a valley charging period and/or an estimated fee;  Input unit to obtain charging indication information.  A charging device for valley charging, the charging device comprising: a control unit, a display unit, and an input unit, wherein The control unit obtains charging status information, where the status information includes current power, rated power, and charging power; acquires immediate charging demand and valley charging demand, and then according to immediate charging demand, valley charging demand, and charging Status information calculates the charging period and/or estimated cost; Immediate charging and charging of the motor vehicle;  a display unit that displays a charging period and/or an estimated fee;  Input unit to obtain charging indication information.  The charging device according to claim 10 or 11, wherein the valley charge amount demand amount and/or the immediate charge demand amount is: a final amount or an increase amount; and the charge demand amount is represented by one of the following contents: Travel distance, percentage of battery rated capacity, degree of charge, length of charge time, or amount of electricity.  The charging device according to claim 12, wherein the charging demand amount is a charging demand amount input by a user or a charging demand amount preset by the system.  A charging device for valley charging, the charging device comprising: a control unit, a display unit, and an input unit, wherein  Display unit, displaying charging prompt information;  Input unit, obtaining charging indication information;  And the control unit, if the charging indication information indicates that the valley charging is selected, charging the vehicle for the valley period.  The charging device according to one of claims 10, 11 or 14, further comprising at least one of displaying: a charging start time, a charging end time, a charging start electric quantity, a charging end electric quantity, and a charging start The distance that can be traveled, the distance that can be traveled at the end of charging, or the charge for electricity.  The charging device according to one of claims 10, 11 or 14, further comprising storing at least one of the following contents by a storage unit in the charging device: a valley start time, a valley end time, electricity price information; or At least one of the following contents is stored by a storage unit in the motor vehicle: a valley start time, a valley end time, and electricity price information.