Vehicle, battery management method and storage medium thereof

Abstract

The present invention discloses a vehicle and a battery management method and a storage medium thereof. The battery of the vehicle includes a power battery, a starting battery and an engine, and the method includes: determining that the vehicle enters a locked state and obtaining a weather forecast time; when the time reaches the weather forecast time, obtaining weather forecast information within a preset time period in the future, wherein the weather forecast information includes weather information and time information; judging whether it is necessary to perform thermal management on the power battery and / or whether it is necessary to perform intelligent charging on the starting battery according to the weather information, wherein intelligent charging is to charge the starting battery through the power battery or the engine; if it is necessary to perform thermal management on the power battery, thermal management is performed on the power battery according to the time information; if it is necessary to perform intelligent charging on the starting battery, intelligent charging is performed on the starting battery according to the time information. The battery management method of the vehicle can ensure the safe use of the vehicle and the battery life.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle, a battery management method and a storage medium thereof. Background Art

[0002] In the related art, when the vehicle is driving, the power battery management system and the starting battery management system will monitor the status of the battery in real time to ensure the best use status. However, when the vehicle is in a dormant state or the whole vehicle is on standby, the whole vehicle communication can only be awakened when the battery management system reaches the calculation time point or detects that the starting battery voltage is lower than the set value, detects the starting battery voltage value, and determines whether to charge the starting battery according to the voltage value, and enters the charging mode when the charging conditions are met to charge the starting battery, but the status of the starting battery cannot be guaranteed. For example, if there is sudden weather or the temperature is too high or too low, the battery performance status on the vehicle will be different due to changes in the environment. Moreover, there is no method for controlling the power battery in the related art. The methods in the related art when the vehicle is in a dormant state or the whole vehicle is on standby are not conducive to ensuring the safe use of the vehicle and the battery life. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the first object of the present invention is to provide a battery management method for a vehicle to ensure the safe use of the vehicle and the battery life.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] A third object of the present invention is to provide a vehicle.

[0006] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a battery management method for a vehicle, wherein the battery of the vehicle includes a power battery, a starting battery and an engine, and the method includes: determining that the vehicle enters a locked state and obtaining a weather forecast time; when the time reaches the weather forecast time, obtaining weather forecast information within a future preset time period, wherein the weather forecast information includes weather information and time information; based on the weather information, determining whether it is necessary to perform thermal management on the power battery, and / or whether it is necessary to perform intelligent charging on the starting battery, wherein the intelligent charging is to charge the starting battery through the power battery or the engine; if it is necessary to perform thermal management on the power battery, thermal management is performed on the power battery according to the time information; if it is necessary to perform intelligent charging on the starting battery, intelligent charging is performed on the starting battery according to the time information.

[0007] To achieve the above-mentioned purpose, a second embodiment of the present invention proposes a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the above-mentioned vehicle battery management method is implemented.

[0008] To achieve the above-mentioned objectives, a third aspect of the present invention proposes a vehicle, comprising: a starting battery and a power battery; and an on-board controller, wherein the on-board controller is used to manage the starting battery and the power battery, and the on-board controller comprises a memory, a processor, and a computer program stored on the memory, and when the computer program is executed by the processor, the above-mentioned vehicle battery management method is implemented.

[0009] The vehicle and its battery management method and storage medium of the embodiment of the present invention can obtain weather forecast information after determining that the vehicle is in a parked and locked state, and then perform thermal management of the power battery and / or charge the starting battery according to the weather forecast information, thereby ensuring the safe use of the vehicle and the battery life.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a flow chart of a battery management method for a vehicle according to a first embodiment of the present invention;

[0012] Figure 2 is a flow chart of a battery management method for a vehicle according to an example of the present invention;

[0013] Figure 3 is a flow chart of a battery management method for a vehicle according to another example of the present invention;

[0014] Figure 4 is a flow chart of a battery management method for a vehicle according to a second embodiment of the present invention;

[0015] Figure 5 4 is a structural block diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following describes a vehicle and a battery management method thereof and a storage medium according to an embodiment of the present invention with reference to the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described with reference to the accompanying drawings are exemplary and should not be construed as limiting the present invention.

[0017] Figure 1 The figure is a flow chart of a battery management method for a vehicle according to an embodiment of the present invention.

[0018] In the embodiment of the present invention, the battery of the vehicle includes a power battery, a starting battery and an engine. The charging method in the present invention includes smart charging and general charging. Smart charging is to charge the starting battery through the power battery or the transmitter, and general charging is to charge using a charging pile.

[0019] like Figure 1 As shown, the battery management method of the vehicle includes:

[0020] S11, determining that the vehicle enters a locked state, and obtaining the weather forecast time.

[0021] Specifically, the weather forecast time can be pre-set. For example, the weather forecast time can be set to the time after the vehicle enters the locked state and the preset time interval. For another example, a specific time of the day can be set as the weather forecast time. For example, since the weather forecast on the Internet is updated regularly, the update time of the weather forecast on the Internet can be obtained, and then the weather forecast time can be set to a certain time after the weather forecast on the Internet is updated. After the vehicle is started, it can be determined whether the vehicle is currently in the locked state. For example, the state of the vehicle can be obtained, and then when it is determined that the current state of the vehicle is a dormant state, a vehicle standby state, or other state where the vehicle has not been driven for a long time, it is determined that the vehicle has entered the locked state. For another example, when it is detected that the user has locked the vehicle, it can be determined that the vehicle has entered the locked state. After determining that the vehicle has entered the locked state, the pre-set weather forecast time can be obtained, and it can be determined whether the current time has reached the weather forecast time.

[0022] S12, when the time reaches the weather forecast time, obtaining weather forecast information within a future preset time period, wherein the weather forecast information includes weather information and time information.

[0023] Specifically, if it is determined that the current time is the weather forecast time, the weather acquisition module on the vehicle can be first awakened, and the weather acquisition module can be, for example, a PAD module, to obtain weather forecast information within a preset time period in the future from the current time. Figure 2If the current time is the weather forecast time, the startup battery management system is awakened, and the startup battery management system wakes up the VCU (Vehicle Control Unit) through the CAN (Controller Area Network), and then the VCU wakes up the PAD module on the vehicle, and the VCU obtains the weather forecast information within the future preset time period through the PAD module. Among them, the preset time period can be, for example, the next seven days, the next two days, the next day, etc., and the above preset time period includes at least one time sub-segment, for example, a time sub-segment can be one hour, two hours, twelve hours, one day, etc. If the VCU does not receive the weather forecast information provided by the PAD, it is determined that the PAD or the communication line is faulty, and the startup battery is intelligently charged according to its own preset charging judgment method.

[0024] S13, judging whether it is necessary to perform thermal management on the power battery and / or whether it is necessary to perform intelligent charging on the starting battery according to the weather information, wherein the intelligent charging is to charge the starting battery through the power battery or the engine.

[0025] Among them, the above-mentioned judgment of whether thermal management of the power battery is needed based on weather information includes: obtaining the maximum temperature value and the minimum temperature value of at least one time sub-segment within a preset time period; if there is at least one time sub-segment with a maximum temperature value greater than a maximum temperature protection threshold, or there is at least one time sub-segment with a minimum temperature value less than a minimum temperature protection threshold, it is determined that thermal management of the power battery is needed.

[0026] As an example, if the VCU obtains weather forecast information for the next seven days through the PAD, the VCU can obtain the minimum and maximum temperatures of each day in the next seven days, and determine whether there is a temperature higher than the maximum temperature protection threshold among the multiple maximum temperatures obtained, and determine whether there is a temperature lower than the minimum temperature protection threshold among the multiple minimum temperatures obtained. If at least one of the conditions is met, it is determined that thermal management of the power battery is required.

[0027] Among them, the above-mentioned judging whether it is necessary to perform intelligent charging on the starting battery based on weather information includes: obtaining the minimum temperature value of at least one time sub-segment within a preset time period; if there is at least one time sub-segment with a minimum temperature value less than a first charging temperature threshold, it is determined that the starting battery needs to be intelligently charged.

[0028] As an example, if the VCU obtains weather forecast information for the next seven days through the PAD, the VCU can obtain the minimum temperature of each day in the next seven days and determine whether there is a temperature below the first charging temperature threshold among the multiple minimum temperatures. If so, it is determined that the starting battery needs to be intelligently charged.

[0029] S14: If thermal management of the power battery is required, thermal management of the power battery is performed according to the time information.

[0030] Specifically, if there is at least one time sub-segment whose highest temperature value is greater than the maximum temperature protection threshold, the time sub-segment corresponding to the highest temperature value is determined to be the first time sub-segment; when the time reaches the first preset moment of the first time sub-segment, the power battery is heat-dissipated so that the temperature of the power battery is greater than the preset optimal temperature and less than the maximum temperature protection threshold; if there is at least one time sub-segment whose lowest temperature value is less than the minimum temperature protection threshold, the time sub-segment corresponding to the lowest temperature value is determined to be the second time sub-segment; when the time reaches the second preset moment of the second time sub-segment, the power battery is heated so that the temperature of the power battery is greater than the minimum temperature protection threshold and less than the preset optimal temperature. The above-mentioned heat dissipation management and heating management of the power battery are both performed through the power battery management system and the vehicle air conditioning system.

[0031] It should be noted that before heat dissipation management is performed on the power battery, if the first time sub-segment is the first time sub-segment of the preset time period, and the difference between the first preset moment and the vehicle locking moment is less than the first preset difference threshold, it is determined that heat dissipation management is not required for the power battery. Before heating management is performed on the power battery, if the second time sub-segment is the first time sub-segment of the preset time period, and the difference between the second preset moment and the vehicle locking moment is less than the first preset difference threshold, it is determined that heating management is not required for the power battery.

[0032] As an example, assuming that the preset time period includes the first day, the second day, the third day, the fourth day, and the fifth day, if it is determined based on the weather information that the maximum temperature Tmax of the Nth day is higher than the maximum temperature protection threshold T1, then the Nth day is determined to be the first time sub-segment; if it is determined based on the weather information that the minimum temperature Tmin of the Nth day is lower than the minimum temperature protection threshold, then the Nth day is determined to be the second time sub-segment.

[0033] Furthermore, a countdown Δt as shown below can be generated:

[0034] Δt=(N-1)*24+X-t0,

[0035] Wherein, t0 is the timing start time, and X is the first preset time / the second preset time. For example, if you want to start thermal management at 14 o'clock when the temperature is the highest in a day, set X to 14.

[0036] After obtaining the countdown Δt, it is also determined whether the Nth day is the first time sub-segment of the preset time period, and whether Δt is less than the first preset difference threshold, and then it is determined whether to wake up the countdown Δt for thermal management countdown according to the judgment result. For example, assuming that X is 14 and the first preset difference threshold is 1 hour, if N is 1 and the difference between the locking time and 14:00 is less than 1 hour, it is determined that the countdown will not be performed; if N is not 1, or the difference between the locking time and 14:00 is greater than or equal to 1 hour, the countdown Δt is woken up for thermal management countdown.

[0037] After the countdown Δt returns to zero, the power battery is thermally managed through the vehicle's power battery management system and the vehicle air conditioning system, and thermal management is stopped when the temperature of the power battery reaches a preset reasonable temperature. If the power battery is heat-dissipated, the preset reasonable temperature is positively correlated with the highest temperature Tmax on the Nth day, and is higher than the preset optimal temperature and lower than the maximum temperature protection threshold; if the power battery is heated, the preset reasonable temperature is positively correlated with the lowest temperature Tmin on the Nth day, and is higher than the minimum temperature protection threshold and lower than the preset optimal temperature.

[0038] Optionally, after the countdown Δt is obtained, all components of the vehicle except for necessary modules such as the timing module can be set to enter a dormant state. After thermal management of the power battery, the entire vehicle enters a dormant state, waiting for the next weather forecast time, leaving only some necessary monitoring modules and the starting battery that provides power to work.

[0039] Thus, it is possible to implement thermal management of the power battery according to weather conditions, thereby ensuring the life of the power battery. Moreover, by setting the above-mentioned stopping of thermal management when the temperature of the power battery reaches a reasonable temperature, the energy consumption of thermal management of the power battery is more reasonable, and the temperature of the power battery can be made close to the optimal temperature, which can be, for example, the temperature at which the power battery has the highest efficiency.

[0040] S15: If the starting battery needs to be intelligently charged, the starting battery is intelligently charged according to the time information.

[0041] Specifically, if there is at least one time sub-segment whose minimum air temperature value is less than the first charging temperature threshold, the time sub-segment corresponding to the minimum air temperature value is determined to be the third time sub-segment; when the time reaches the third preset moment of the third time sub-segment, the starting battery is intelligently charged.

[0042] Before the starting battery is intelligently charged, the method further includes: if the third time subsegment is the first time subsegment of the preset time period, and the difference between the third preset moment and the vehicle locking moment is less than the second preset difference threshold, it is determined that the starting battery does not need to be intelligently charged.

[0043] Combine the following Figure 3 The specific example shown explains in detail the intelligent charging of the starting battery according to the time information. In this specific example, the preset time period includes the first day, the second day, the third day, the fourth day, and the fifth day. The third preset time is 14:00, at which time the temperature is the highest and the energy conversion efficiency is the highest. The second preset difference threshold is 1 hour. The temperature of the Mth day and the Nth day is obtained by the weather acquisition module on the vehicle. The Mth and Nth days can be, for example, the two most recent days in the preset time period when the lowest temperature is lower than the first charging temperature threshold. The first charging temperature threshold is -20°C.

[0044] Specifically, if the lowest temperature Tmin1 of the Nth day is less than -20°C, the third time subsegment is determined to be the Nth day, and then the countdown Δt1 shown below is generated:

[0045] Δt1=(N-1)*24+14-t0.

[0046] Among them, if N is 1, and the difference between the locking time and 14:00 is less than 1 hour, that is, Δt1<1, it can be considered that the vehicle has just been powered off, the starting battery is sufficiently charged, and no charging is required; if Δt1≥1, the smart charging countdown Δt1 is awakened, so that the starting battery is charged through the power battery or the vehicle's engine when Δt1 returns to zero.

[0047] Furthermore, if Δt1<1, and if the minimum temperature Tmin2 of the Mth day is less than -20°C, a countdown Δt2 is generated as shown below:

[0048] Δt1=(N-1)*24+14-t0.

[0049] Among them, if N is 1, and the difference between the locking time and 14:00 is less than 1 hour, that is, Δt2<1, it can be considered that the vehicle has just been powered off, the starting battery is sufficiently charged, and no charging is required; if Δt2≥1, the smart charging countdown Δt2 is awakened, so that the starting battery is charged through the power battery or the vehicle's engine when Δt2 returns to zero.

[0050] Optionally, after the countdown is obtained, all components of the vehicle except for necessary modules such as the timing module can be set to enter a dormant state. After thermal management of the power battery, the entire vehicle enters a dormant state, waiting for the next weather forecast time, leaving only some necessary monitoring modules and the starting battery that provides power to work.

[0051] Therefore, the starting battery can be charged when the temperature is low according to weather conditions, thereby ensuring that the starting battery will not be depleted, meeting the needs of users and ensuring the safe use of the vehicle.

[0052] It should be noted that after the starting battery is intelligently charged, the power value and charging time of the starting battery can also be obtained; when the power value is greater than or equal to the preset high power threshold, or the charging time reaches the preset duration, the intelligent charging of the starting battery is stopped.

[0053] Specifically, after the start-up battery is intelligently charged, it can be first determined whether the power value of the start-up battery is greater than or equal to a preset high power threshold, for example, it can be determined whether the power value of the start-up battery has reached full power. Second, it can be determined whether the charging time has reached a preset time. When any one of the two conditions is met, the intelligent charging of the start-up battery is stopped.

[0054] The preset duration can be obtained according to the lowest temperature of the third time sub-segment. For example, the corresponding relationship between the lowest temperature and the preset duration can be set as follows: when the lowest temperature is less than 0°C, the preset duration is 2 hours; when the lowest temperature is 0-25°C, the preset duration is 1 hour; when the lowest temperature is greater than 25°C, the preset duration is 45 minutes. Thus, after the start-up battery is intelligently charged, the maximum allowable charging duration can be obtained according to the lowest temperature of the third time sub-segment.

[0055] In one embodiment of the present invention, see Figure 4 , the battery management method of the vehicle also includes:

[0056] S41, obtaining a power value and a temperature value of a starting battery, and obtaining a charging time threshold value corresponding to the temperature value according to a corresponding relationship between the starting battery temperature and the charging time.

[0057] Specifically, after determining that the current time is the weather forecast time and the vehicle is awakened, the starting battery can be monitored to obtain the power value and temperature value of the starting battery. For example, the power value and temperature value of the starting battery can be obtained by the VCU. After obtaining the power value and temperature value, the charging time threshold corresponding to the temperature value is obtained.

[0058] Optionally, time information can also be obtained while obtaining the power value and temperature value of the starting battery, and a third time sub-segment corresponding to the time information can be obtained, and then the corresponding preset time length can be obtained according to the lowest temperature of the third time sub-segment, and the preset time length can be used as the corresponding charging time threshold.

[0059] The above starting battery temperature-charging time correspondence relationship includes a one-to-one correspondence between a plurality of starting battery temperature intervals and a plurality of charging time thresholds, wherein the starting battery temperature intervals are inversely correlated with the charging time thresholds.

[0060] S42, when the power value is less than a preset low power threshold, or the temperature value is less than a second charging temperature threshold, the starting battery is intelligently charged until the power value of the starting battery is greater than or equal to a preset high power threshold, or the charging time of the starting battery reaches a charging time threshold.

[0061] In this way, the starting battery can be charged when the starting battery is low on power or the temperature is too low, thereby preventing the rechargeable battery from running low on power, meeting the needs of users and ensuring the safe use of the vehicle.

[0062] In summary, the battery management method for a vehicle in an embodiment of the present invention can obtain weather forecast information after determining that the vehicle is in a parking and locking state, and then perform thermal management on the power battery and / or charge the starting battery according to the weather forecast information, thereby ensuring the safe use of the vehicle and the battery life. Since the performance of the battery is related to the temperature, by performing targeted treatment on the battery when the weather temperature is too high or too low, the battery can be ensured to be in the best operating condition, further ensuring the safe use of the vehicle and the battery life. Moreover, the starting battery can be charged when it is determined that the starting battery is insufficient or the temperature is too low, thereby further ensuring the safe use of the vehicle.

[0063] Furthermore, the present invention provides a computer-readable storage medium.

[0064] In an embodiment of the present invention, a computer program is stored on a computer-readable storage medium. When the computer program is executed by a processor, after determining that the vehicle is in a parking and locking state, weather forecast information can be obtained, and then the power battery can be thermally managed and / or the starting battery can be charged according to the weather forecast information, thereby ensuring the safe use of the vehicle and the battery life. Since the performance of the battery is related to the temperature, by performing targeted treatment on the battery when the weather temperature is too high or too low, the battery can be ensured to be in the best operating condition, further ensuring the safe use of the vehicle and the battery life. Moreover, the starting battery can be charged when it is determined that the starting battery is insufficient or the temperature is too low, thereby further ensuring the safe use of the vehicle.

[0065] The computer-readable storage medium of the embodiment of the present invention can ensure the safe use of the vehicle and the battery life by implementing the above-mentioned vehicle battery management method.

[0066] Figure 5 4 is a structural block diagram of a vehicle according to an embodiment of the present invention.

[0067] like Figure 5 As shown, the vehicle 100 includes: a starting battery 101, a power battery 102, and an onboard controller 103. The onboard controller 103 is used to manage the starting battery 101 and the power battery 102. The onboard controller 103 includes a memory, a processor, and a computer program stored in the memory. When the computer program is executed by the processor, the above-mentioned vehicle battery management method is implemented.

[0068] The vehicle of the embodiment of the present invention, through the above-mentioned vehicle battery management method, can obtain weather forecast information after determining that the vehicle is in the parking and locking state, and then perform thermal management on the power battery and / or charge the starting battery according to the weather forecast information, thereby ensuring the safe use of the vehicle and the battery life. Since the performance of the battery is related to the temperature, by performing targeted treatment on the battery when the weather temperature is too high or too low, it can be ensured that the battery is in the best use condition, further ensuring the safe use of the vehicle and the battery life. Moreover, the starting battery can be charged when it is judged that the starting battery is insufficient or the temperature is too low, thereby further ensuring the safe use of the vehicle.

[0069] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0070] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] In the description of this specification, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In the description of this specification, unless otherwise specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0076] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A battery management method for a vehicle, characterized in that: The battery of the vehicle includes a power battery, a starting battery and an engine, and the method includes: Determine that the vehicle enters a locked state and obtain the weather forecast time; When the time reaches the weather forecast time, obtaining weather forecast information within a future preset time period, wherein the weather forecast information includes weather information and time information; According to the weather information, determining whether thermal management of the power battery is required, and whether intelligent charging of the starting battery is required, wherein the intelligent charging is charging the starting battery through the power battery or the engine; If thermal management of the power battery is required, thermal management of the power battery is performed according to the time information; If the starting battery needs to be intelligently charged, the starting battery is intelligently charged according to the time information; The method further comprises: Obtaining the power value and temperature value of the starting battery, and obtaining a charging time threshold value corresponding to the temperature value according to a corresponding relationship between the starting battery temperature and the charging time; When the power value is less than a preset low power threshold, or the temperature value is less than a second charging temperature threshold, the starting battery is intelligently charged until the power value of the starting battery is greater than or equal to a preset high power threshold, or the charging time of the starting battery reaches the charging time threshold.

2. The vehicle battery management method according to claim 1, characterized in that: The step of determining that the vehicle enters a locked state and obtaining a weather forecast time includes: When it is determined that the vehicle enters the locked state, it is determined that the current time reaches the weather forecast time.

3. The vehicle battery management method according to claim 1, characterized in that: The preset time period includes at least one time sub-segment; and judging whether thermal management of the power battery is required according to the weather information includes: Obtaining the maximum temperature value and the minimum temperature value of at least one of the time sub-segments within the preset time period; If there is at least one time subsegment whose highest air temperature value is greater than the maximum temperature protection threshold, or if there is at least one time subsegment whose lowest air temperature value is less than the minimum temperature protection threshold, it is determined that thermal management of the power battery is required.

4. The vehicle battery management method according to claim 3, characterized in that: The thermal management of the power battery according to the time information includes: If there is at least one time sub-segment whose maximum air temperature value is greater than the maximum temperature protection threshold, determining that the time sub-segment corresponding to the maximum air temperature value is the first time sub-segment; When the time reaches a first preset moment of the first time subsegment, heat dissipation management is performed on the power battery so that the temperature of the power battery is greater than a preset optimal temperature and less than the maximum temperature protection threshold; If there is at least one time sub-segment whose lowest air temperature value is lower than the minimum temperature protection threshold, determining the time sub-segment corresponding to the lowest air temperature value as the second time sub-segment; When the time reaches a second preset moment of the second time subsegment, heating management is performed on the power battery so that the temperature of the power battery is greater than the minimum temperature protection threshold and less than a preset optimal temperature.

5. The vehicle battery management method according to claim 4, characterized in that: Also includes: When determining that the vehicle enters a locked state, determining the current moment as a locked moment; Before performing heat dissipation management on the power battery, the method further includes: If the first time subsegment is the first time subsegment of the preset time period, and the difference between the first preset moment and the vehicle locking moment is less than a first preset difference threshold, it is determined that heat dissipation management of the power battery is not required; Before performing heating management on the power battery, the method further includes: If the second time subsegment is the first time subsegment of the preset time period, and the difference between the second preset moment and the vehicle locking moment is less than the first preset difference threshold, it is determined that heating management of the power battery is not required.

6. The vehicle battery management method according to claim 1, characterized in that: The preset time period includes at least one time sub-segment; The step of determining whether the starting battery needs to be intelligently charged according to the weather information includes: Obtaining the lowest temperature value of at least one of the time sub-segments within the preset time period; If there is at least one time subsegment in which the lowest air temperature value is less than the first charging temperature threshold, it is determined that the starting battery needs to be intelligently charged.

7. The vehicle battery management method according to claim 6, characterized in that: Also includes: When determining that the vehicle enters a locked state, determining the current moment as a locked moment; The intelligently charging the starting battery according to the time information includes: If there is at least one time sub-segment whose lowest air temperature value is lower than the first charging temperature threshold, determining that the time sub-segment corresponding to the lowest air temperature value is a third time sub-segment; When the time reaches a third preset moment of the third time subsegment, the starting battery is intelligently charged.

8. The vehicle battery management method according to claim 7, characterized in that: Before intelligently charging the starting battery, the method further includes: If the third time subsegment is the first time subsegment of the preset time period, and the difference between the third preset moment and the vehicle locking moment is less than a second preset difference threshold, it is determined that the starting battery does not need to be intelligently charged.

9. The battery management method for a vehicle according to any one of claims 1 to 8, characterized in that: After intelligently charging the starting battery, the method includes: Obtaining the power value and charging time of the starting battery; When the power value is greater than or equal to a preset high power threshold, or when the charging time reaches a preset duration, intelligent charging of the starting battery is stopped.

10. The vehicle battery management method according to claim 1, characterized in that: The starting battery temperature-charging time correspondence relationship includes a one-to-one correspondence between a plurality of starting battery temperature intervals and a plurality of charging time thresholds, wherein the starting battery temperature interval and the charging time threshold are in an inverse correlation relationship.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the battery management method for a vehicle as described in any one of claims 1 to 10 is implemented.

12. A vehicle, characterized in that: include: Starting battery and power battery; as well as An on-board controller, the on-board controller is used to manage the starting battery and the power battery, the on-board controller includes a memory, a processor and a computer program stored in the memory, and when the computer program is executed by the processor, the battery management method of the vehicle as described in any one of claims 1-10 is implemented.

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