Battery control method and device for extended-range vehicle, medium and equipment

Abstract

According to the battery control method and device of the extended-range vehicle, the medium and the equipment, the current battery information and the current environment temperature when the extended-range vehicle is in the dormancy state are obtained, so that the battery charging strategy of the extended-range vehicle is determined, the current acquisition time of the current battery information and the current environment temperature is determined according to the last battery information, the last environment temperature and the last acquisition time; the battery electric quantity, the battery cell temperature and the environment temperature of the extended-range vehicle in the dormancy state are obtained through regular inspection, and whether a battery charging strategy is executed to charge the power battery or not is determined, so that the problem that starting is difficult due to insufficient electric quantity of the power battery after long-time parking is solved. Therefore, the application range and the use experience of the extended-range vehicle are improved.

Description

Technical Field

[0001] The present application relates to the technical field of extended-range vehicles, and in particular to a battery control method, device, medium and equipment for an extended-range vehicle. Background Art

[0002] With the continuous development and improvement of new energy vehicle technology, more and more people are starting to buy and use new energy vehicles. Among them, electric vehicles are mainly powered by the electricity stored in the power battery, which has the advantages of zero pollution and zero emissions. Extended-range vehicles refer to new energy vehicles equipped with a range extender (i.e., a power generation unit) composed of an engine and a generator. When the battery is fully charged, the battery drives the motor to provide the driving power required by the vehicle, and the range extender does not participate in the work; when the battery power is consumed to a certain extent, the range extender starts to provide energy for the battery to charge the battery.

[0003] However, when a new energy vehicle is parked for a long time, its battery will self-discharge, resulting in power loss of the power battery. If the power is too low, the vehicle may not be able to start, especially in extremely cold weather. The battery temperature may be too low to drive the vehicle if the vehicle is parked for a long time. Therefore, there is an urgent need for a method to ensure that new energy vehicles can start normally after being parked for a long time or in a low temperature environment. Summary of the invention

[0004] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide a battery control method, device, medium and equipment for an extended-range vehicle.

[0005] According to one aspect of the present application, a battery control method for an extended-range vehicle is provided, including: obtaining current battery information and current ambient temperature when the extended-range vehicle is in sleep mode; wherein the current battery information includes the current cell temperature of the power battery and the current battery charge; the current acquisition time is determined based on the last battery information, the last ambient temperature and the last acquisition time, wherein the last acquisition time indicates the time when the last battery information and the last ambient temperature were acquired; based on the current battery information and the current ambient temperature, determining the battery charging strategy of the extended-range vehicle.

[0006] In one embodiment, the method for determining the current acquisition time includes: calculating a temperature parameter based on the last battery cell temperature and the last ambient temperature; wherein the temperature parameter is determined based on the temperature range in which the last ambient temperature is located; calculating a power parameter based on the last battery power; the power parameter is determined based on the power range in which the last battery power is located; and calculating the current acquisition time based on the temperature parameter, the power parameter and the last acquisition time.

[0007] In one embodiment, determining the battery control strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: if the current battery cell temperature is greater than a preset temperature threshold and the current battery power is greater than a preset first power threshold, controlling the extended-range vehicle to continue to sleep.

[0008] In one embodiment, the method further includes: if the current battery cell temperature is less than or equal to a preset temperature threshold, executing a battery cell heating strategy.

[0009] In one embodiment, determining the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: if the current battery cell temperature is less than or equal to a preset temperature threshold, and the current battery power is less than or equal to a preset second power threshold, then executing the battery charging strategy and the battery cell heating strategy; wherein the second power threshold is positively correlated with the average power value of the extended-range vehicle's range extender that replenishes the power battery multiple times during sleep.

[0010] In one embodiment, determining the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: if the current battery power is less than or equal to a preset first power threshold, executing the battery charging strategy.

[0011] In one embodiment, determining the battery control strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: if the battery control strategy is a battery charging strategy, obtaining the catalyst temperature of the range extender of the extended-range vehicle; if the catalyst temperature is less than a preset catalytic temperature threshold, controlling the range extender to idle until the catalyst temperature is greater than or equal to the catalytic temperature threshold, and then turning on the range extender to replenish the power battery.

[0012] According to another aspect of the present application, a battery control device for an extended-range vehicle is provided, comprising: an information acquisition module, used to acquire current battery information and current ambient temperature when the extended-range vehicle is in sleep mode; wherein the current battery information includes the current cell temperature of the power battery and the current battery charge; the current acquisition time is determined based on the last battery information, the last ambient temperature and the last acquisition time, wherein the last acquisition time indicates the time when the last battery information and the last ambient temperature were acquired; and a strategy determination module, used to determine the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature.

[0013] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the storage medium stores a computer program, and the computer program is used to execute any of the above methods.

[0014] According to another aspect of the present application, an electronic device is provided, comprising: a processor; a memory for storing instructions executable by the processor; and the processor is used to execute any of the above-described methods.

[0015] The present application provides a battery control method, device, medium and equipment for an extended-range vehicle, which obtains the current battery information and current ambient temperature when the extended-range vehicle is in sleep mode; wherein the current battery information includes the current cell temperature of the power battery and the current battery power; the current acquisition time of the current battery information and the current ambient temperature is determined based on the last battery information, the last ambient temperature and the last acquisition time, wherein the last battery information and the last ambient temperature represent the last acquired battery information and ambient temperature, and the last acquisition time represents the time when the last battery information and the last ambient temperature were acquired; based on the current battery information and the current ambient temperature, a battery replenishment strategy for the extended-range vehicle is determined; that is, the battery power, cell temperature and ambient temperature of the extended-range vehicle when it is in sleep mode are obtained through regular inspections, and it is determined whether to execute the battery replenishment strategy to replenish the power battery based on the battery power, cell temperature and ambient temperature, so as to utilize the power generation characteristics of the extended-range vehicle to solve the problem of starting difficulty caused by insufficient power of the power battery after long-term parking, thereby improving the scope of application and user experience of the extended-range vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 It is a flow chart of a battery control method for an extended-range vehicle provided by an exemplary embodiment of the present application.

[0018] Figure 2 It is a schematic structural diagram of a battery control device for an extended-range vehicle provided by an exemplary embodiment of the present application.

[0019] Figure 3 It is a structural diagram of an electronic device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0020] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described here.

[0021] Figure 1 FIG. 1 is a flow chart of a battery control method for a range-extended vehicle provided by an exemplary embodiment of the present application. Figure 1 As shown, the battery control method of the extended-range vehicle includes the following steps: Step 110: Obtain current battery information and current ambient temperature when the extended-range vehicle is in sleep mode.

[0022] Among them, the current battery information includes the current cell temperature and the current battery charge of the power battery, and the current ambient temperature includes the current ambient temperature of the environment where the power battery is located; the current acquisition time of the current battery information and the current ambient temperature is determined based on the last battery information, the last ambient temperature and the last acquisition time, wherein the last battery information and the last ambient temperature represent the last acquired battery information and ambient temperature, and the last acquisition time represents the time when the last battery information and the last ambient temperature were acquired.

[0023] This application begins periodic inspection of the power battery's cell temperature, battery charge level and other information, and ambient temperature when the extended-range vehicle enters sleep mode (parked). For example, the real-time clock module (BMS RTC) of the battery management system is used to periodically wake up the inspection function, and the time of the current inspection is determined based on the battery information and ambient temperature obtained during the previous inspection, so as to further optimize the inspection time and minimize energy consumption while ensuring the performance of the extended-range vehicle's power battery.

[0024] Step 120: Determine the battery charging strategy for the extended-range vehicle based on the current battery information and the current ambient temperature.

[0025] This application obtains information such as the power battery cell temperature, ambient temperature, and power battery charge during each inspection to determine whether the power battery needs to be replenished, and determines the battery control strategy of the extended-range vehicle based on the power battery demand to ensure that the battery charge of the power battery meets the normal starting requirements.

[0026] The present application provides a battery control method for an extended-range vehicle, which obtains current battery information and current ambient temperature when the extended-range vehicle is in sleep mode; wherein the current battery information includes the current cell temperature of the power battery and the current battery charge; the current acquisition time of the current battery information and the current ambient temperature is determined based on the last battery information, the last ambient temperature and the last acquisition time, wherein the last battery information and the last ambient temperature represent the last acquired battery information and ambient temperature, and the last acquisition time represents the time when the last battery information and the last ambient temperature were acquired; based on the current battery information and the current ambient temperature, a battery replenishment strategy for the extended-range vehicle is determined; that is, the battery charge, cell temperature and ambient temperature of the extended-range vehicle when it is in sleep mode are obtained through regular inspections, and it is determined whether to execute the battery replenishment strategy to replenish the power battery based on the battery charge, cell temperature and ambient temperature, so as to utilize the power generation characteristics of the extended-range vehicle to solve the problem of starting difficulty caused by insufficient power of the power battery after long-term parking, thereby improving the scope of application and user experience of the extended-range vehicle.

[0027] In one embodiment, the method for determining the current acquisition time may be: calculating the temperature parameter based on the last battery cell temperature and the last ambient temperature; calculating the power parameter based on the last battery power; and calculating the current acquisition time based on the temperature parameter, power parameter and the last acquisition time.

[0028] The temperature parameter is determined according to the temperature range of the last ambient temperature, and the power parameter is determined according to the power range of the last battery power. This application uses the BMS RTC to periodically wake up the BMS (battery management system) to inspect the power battery to obtain relevant information about the power battery. The last cell temperature is recorded as T 电芯1 (i.e. the cell temperature value obtained by the last BMS inspection), the last ambient temperature is T 环境1 (i.e., the ambient temperature value obtained by the last inspection of BMS), the last inspection time (i.e., the last acquisition time) is S1 (in hours, i.e., the time from the parking of the extended-range vehicle to the last inspection), and the current inspection time (i.e., the current acquisition time) is S2 (in hours, i.e., the time from the parking of the extended-range vehicle to the current inspection). According to T 电芯1 and T 环境1 Calculate the temperature parameters a The specific calculation method is as follows:

[0029] Among them, T 记忆 =Min(T 电芯1 , T 环境1 ), that is, if T 记忆 Less than or equal to -20℃, then a =1, otherwisea =4.

[0030] Calculate the power parameters based on the last battery power (SOC value) b The specific calculation method is as follows:

[0031] That is, if the last battery charge is less than or equal to 5%, then b =1, otherwise b =4.

[0032] After the temperature parameter and the power parameter are calculated, the current acquisition time is calculated according to the temperature parameter, the power parameter and the last acquisition time. Specifically, the current acquisition time can be calculated using the following formula: S2=S1+Min( a, b ).

[0033] Optionally, the present application may perform inspections when S2=1, 2, ..., 11, 12, that is, perform an inspection every hour when S2≤12, and calculate the value of S2 based on temperature parameters, power parameters and the last acquisition time when S2>12 to minimize the inspection frequency of long-dormant vehicles.

[0034] In one embodiment, the specific implementation of the above step 120 may be: if the current battery cell temperature is greater than a preset temperature threshold, and the current battery power is greater than a preset first power threshold, then the power battery and the range extender are controlled to continue to sleep.

[0035] If the current cell temperature T obtained by the current time inspection 电芯2 Greater than a temperature threshold (e.g. T 电芯2 >-28℃), and the current battery power is greater than the first power threshold (for example, the current SOC>5%), it means that the temperature of the power battery cell is high and the power is sufficient. At this time, there is no need to heat the power battery cell or replenish the power battery. In this case, the extended-range vehicle is controlled to continue to sleep.

[0036] In one embodiment, the battery control method for the extended-range vehicle may further include: if the current battery cell temperature is less than or equal to the temperature threshold, executing a battery cell heating strategy.

[0037] If the current cell temperature T 电芯2 Less than or equal to a temperature threshold (e.g. T 电芯2 ≤-28℃), indicating that the temperature of the power battery cell is low. For the subsequent power battery startup function, the power battery can be turned on to heat the cell until the cell temperature reaches the preset temperature value (for example, -25℃), then the heating is stopped.

[0038] In one embodiment, the specific implementation of the above step 120 may be: if the current battery power is less than or equal to the first power threshold, then executing the battery charging strategy.

[0039] If the current battery power is less than or equal to the first power threshold, it means that the power battery is insufficient. In order to enable the subsequent starting function of the power battery, the range extender can be turned on to replenish the power battery.

[0040] In one embodiment, the specific implementation method of the above step 120 can be: if the current battery cell temperature is less than or equal to the temperature threshold, and the current battery power is less than or equal to the preset second power threshold, then the battery charging strategy and the battery cell heating strategy are executed; wherein the second power threshold is positively correlated with the average power value of the range extender of the extended-range vehicle replenishing the power battery multiple times during the sleep process.

[0041] If the current cell temperature T 电芯2 If the temperature is less than or equal to the above-mentioned temperature threshold, and the current battery power is less than or equal to the preset second power threshold, it means that the battery cell temperature is low and the power battery is insufficient. For the subsequent power battery startup function, the power battery can be turned on to heat the battery cell until the battery cell temperature reaches the preset temperature value (for example, -25°C), then the heating is stopped, and the range extender is turned on to replenish the power battery. In order to avoid wasting the power battery by replenishing power when the battery cell temperature is low, the present application can turn on the range extender to replenish the power battery after the battery cell heating is completed. Among them, the second power threshold is positively correlated with the average power value of the range extender replenishing the power battery multiple times during the sleep process. Specifically, the second power threshold is positively correlated with the average power value of the range extender replenishing the power battery multiple times during the sleep process. Specifically, the second power threshold c The calculation method of % is as follows:

[0042] in, m The number of times the range extender replenishes the power battery during this sleep process. d m For the most recent m The amount of electricity that the range extender replenishes for the power battery, Σ d m / m express m The average value of the power value of the secondary range extender to supplement the power battery, SOE MAX Indicates the rated capacity of the power battery. d 0=2%×SOE MAX .

[0043] In one embodiment, the specific implementation method of the above step 120 can be: if the battery control strategy is a battery charging strategy, the catalyst temperature of the range extender of the extended-range vehicle is obtained; if the catalyst temperature is less than a preset catalytic temperature threshold, the range extender is controlled to idle until the catalyst temperature is greater than or equal to the catalytic temperature threshold, and then the range extender is turned on to replenish the power battery.

[0044] Since the engine temperature is low when the range-extended vehicle is cold-started, the catalyst cannot reach the temperature required for the catalytic reaction, which makes it difficult for the catalytic reaction to proceed normally. In order to ensure the normal operation of the catalyst, the engine sends a catalyst heating request when the catalyst temperature is low, and controls the range extender to idle in response to the heating request, that is, controls the engine to enter idle operation, for example, the idle activation flag position 1, the idle target speed (for example, 800rpm) and the negative torque request (lower than the static friction torque) can be sent, and the generator is controlled to enter torque control (the target torque is zero) to achieve the engine idling to heat the catalyst (the generator does not generate electricity at this time). When the catalyst temperature reaches the catalytic temperature (that is, the catalytic temperature threshold), the engine sends a catalyst heating completion signal, and the range extender exits the idle heating mode and enters the idle power generation mode (for example, the power generation power is 8kw and the power generation speed is 1000rpm), that is, the engine drives the generator to generate electricity to replenish the power battery until the power battery reaches the target SOC and the range extender stops running. Among them, the specific calculation method of the target SOC can be: target SOC=[5+2×( c -5)]+ e ;in, c is the second power threshold, e The calculation method is as follows:

[0045] That is, if T 记忆 ≤-20, the power consumed by heating the battery cell is added to the target SOC, that is, the power consumed by heating the battery cell is supplemented once more to reduce the subsequent power generation frequency and improve the power generation efficiency.

[0046] Figure 2 FIG. 1 is a schematic diagram of a battery control device for a range-extended vehicle provided by an exemplary embodiment of the present application. Figure 2As shown, the battery control device 20 of the extended-range vehicle includes: an information acquisition module 21, which is used to obtain the current battery information and the current ambient temperature when the extended-range vehicle is in sleep mode; wherein the current battery information includes the current cell temperature of the power battery and the current battery power; the current acquisition time of the current battery information and the current ambient temperature is determined according to the last battery information, the last ambient temperature and the last acquisition time, wherein the last battery information and the last ambient temperature represent the last acquired battery information and ambient temperature, and the last acquisition time represents the time when the last battery information and the last ambient temperature were acquired; a strategy determination module 22, which is used to determine the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature.

[0047] The present application provides a battery control device for an extended-range vehicle, which obtains the current battery information and the current ambient temperature when the extended-range vehicle is in sleep mode through an information acquisition module 21; wherein the current battery information includes the current cell temperature of the power battery and the current battery power; the current acquisition time of the current battery information and the current ambient temperature is determined according to the last battery information, the last ambient temperature and the last acquisition time, wherein the last battery information and the last ambient temperature represent the last acquired battery information and ambient temperature, and the last acquisition time represents the time when the last battery information and the last ambient temperature were acquired; the strategy determination module 22 determines the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature; that is, the battery power, cell temperature and ambient temperature of the extended-range vehicle when in sleep mode are obtained through regular inspections, and whether to execute the battery charging strategy to replenish the power battery according to the battery power, cell temperature and ambient temperature, so as to utilize the power generation characteristics of the extended-range vehicle to solve the problem of starting difficulty caused by insufficient power of the power battery after long-term parking, thereby improving the scope of application and user experience of the extended-range vehicle.

[0048] In one embodiment, the above-mentioned information acquisition module 21 can be further configured as follows: calculating temperature parameters based on the last battery cell temperature and the last ambient temperature; wherein the temperature parameters are determined according to the temperature range in which the last ambient temperature is located; calculating power parameters based on the last battery power; wherein the power parameters are determined according to the power range in which the last battery power is located; and calculating the current acquisition time based on the temperature parameters, power parameters and the last acquisition time.

[0049] In one embodiment, the strategy determination module 22 may be further configured to: if the current battery cell temperature is greater than a preset temperature threshold, and the current battery power is greater than a preset first power threshold, control the extended-range vehicle to continue to sleep.

[0050] In one embodiment, the battery control device 20 of the above-mentioned extended-range vehicle may be further configured to: if the current battery cell temperature is less than or equal to a preset temperature threshold, then execute a battery cell heating strategy.

[0051] In one embodiment, the strategy determination module 22 may be further configured to: if the current battery power level is less than or equal to a preset first power level threshold, execute the battery charging strategy.

[0052] In one embodiment, the above-mentioned strategy determination module 22 can be further configured as follows: if the current battery cell temperature is less than or equal to a preset temperature threshold, and the current battery power is less than or equal to a preset second power threshold, then the battery charging strategy and the battery cell heating strategy are executed; wherein the second power threshold is positively correlated with the average power value of the range extender of the extended-range vehicle that replenishes the power battery multiple times during the sleep process.

[0053] In one embodiment, the above-mentioned strategy determination module 22 can be further configured as follows: if the battery control strategy is a battery charging strategy, the catalyst temperature of the range extender of the extended-range vehicle is obtained; if the catalyst temperature is less than a preset catalytic temperature threshold, the range extender is controlled to idle until the catalyst temperature is greater than or equal to the catalytic temperature threshold, and then the range extender is turned on to replenish the power battery.

[0054] Below, reference Figure 3 The electronic device according to the embodiment of the present application is described. The electronic device may be any one or both of the first device and the second device, or a stand-alone device independent of them, and the stand-alone device may communicate with the first device and the second device to receive the collected input signal from them.

[0055] Figure 3 A block diagram of an electronic device according to an embodiment of the present application is illustrated.

[0056] like Figure 3 As shown, the electronic device 10 includes one or more processors 11 and a memory 12 .

[0057] The processor 11 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.

[0058] The memory 12 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 11 may run the program instructions to implement the methods of the various embodiments of the present application described above and / or other desired functions. Various contents such as input signals, signal components, noise components, etc. may also be stored in the computer-readable storage medium.

[0059] In one example, the electronic device 10 may further include: an input device 13 and an output device 14 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0060] When the electronic device is a stand-alone device, the input device 13 may be a communication network connector, which is used to receive the collected input signals from the first device and the second device.

[0061] In addition, the input device 13 may also include, for example, a keyboard, a mouse, and the like.

[0062] The output device 14 can output various information to the outside, including the determined distance information, direction information, etc. The output device 14 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and the like.

[0063] Of course, to simplify, Figure 3 Only some of the components related to the present application in the electronic device 10 are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, according to specific application situations, the electronic device 10 may also include any other appropriate components.

[0064] In addition to the above-mentioned methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present application described in the above-mentioned "Exemplary Method" section of this specification.

[0065] The computer program product may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the embodiments of the present application, including object-oriented programming languages, such as Java, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0066] In addition, an embodiment of the present application may also be a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor executes the steps of the method according to various embodiments of the present application described in the above "Exemplary Method" section of this specification.

[0067] The computer readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0068] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0069] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0070] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0071] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0072] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A battery control method for an extended-range vehicle, characterized in that: include: Acquire the current battery information and current ambient temperature of the extended-range vehicle when it is dormant; wherein the current battery information includes the current cell temperature of the power battery and the current battery power; the current acquisition time is determined according to the last battery information, the last ambient temperature and the last acquisition time, wherein the last acquisition time indicates the time when the last battery information and the last ambient temperature were acquired; Based on the current battery information and the current ambient temperature, a battery charging strategy for the extended-range vehicle is determined.

2. The battery control method for an extended-range vehicle according to claim 1, characterized in that: The method for determining the current acquisition time includes: Calculate a temperature parameter according to the last battery cell temperature and the last ambient temperature; wherein the temperature parameter is determined according to the temperature range of the last ambient temperature; Calculate the power parameter according to the last battery power; wherein the power parameter is determined according to the power interval of the last battery power; The current acquisition time is calculated according to the temperature parameter, the power parameter and the last acquisition time.

3. The battery control method for an extended-range vehicle according to claim 1, characterized in that: The determining of the battery control strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: If the current battery cell temperature is greater than a preset temperature threshold, and the current battery power is greater than a preset first power threshold, the extended-range vehicle is controlled to continue to sleep.

4. The battery control method for an extended-range vehicle according to claim 1, characterized in that: The method further comprises: If the current battery cell temperature is less than or equal to a preset temperature threshold, the battery cell heating strategy is executed.

5. The battery control method for an extended-range vehicle according to claim 1, characterized in that: The determining of the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: If the current battery power level is less than or equal to a preset first power level threshold, the battery charging strategy is executed.

6. The battery control method for an extended-range vehicle according to claim 1, characterized in that: The determining of the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: If the current battery cell temperature is less than or equal to a preset temperature threshold, and the current battery power is less than or equal to a preset second power threshold, the battery charging strategy and the battery cell heating strategy are executed; wherein the second power threshold is positively correlated with the average power value of the power battery replenished multiple times by the range extender of the extended-range vehicle during the sleep process.

7. The battery control method for an extended-range vehicle according to claim 1, characterized in that: The determining of the battery control strategy of the extended-range vehicle based on the current battery information and the current ambient temperature includes: If the battery control strategy is a battery charging strategy, obtaining a catalyst temperature of a range extender of the range-extended vehicle; If the catalyst temperature is lower than a preset catalyst temperature threshold, the range extender is controlled to idle until the catalyst temperature is greater than or equal to the catalyst temperature threshold, and then the range extender is turned on to replenish the power battery.

8. A battery control device for an extended-range vehicle, characterized in that: include: An information acquisition module, used to acquire current battery information and current ambient temperature when the extended-range vehicle is dormant; wherein the current battery information includes the current cell temperature of the power battery and the current battery power; the current acquisition time is determined according to the last battery information, the last ambient temperature and the last acquisition time, wherein the last acquisition time indicates the time when the last battery information and the last ambient temperature were acquired; A strategy determination module is used to determine the battery charging strategy of the extended-range vehicle based on the current battery information and the current ambient temperature.

9. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and the computer program is used to execute the method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is used to execute the method described in any one of claims 1 to 7.

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