Method and device for dynamically adjusting soc of battery, vehicle, medium and product

Abstract

The application relates to a battery SOC dynamic adjustment method and device, a vehicle, a medium and a product. The method comprises the following steps: acquiring the current environment temperature of the vehicle; if the environment temperature is less than or equal to a preset temperature, determining a target SOC lower limit point and a target SOC balance point according to the current environment temperature, and acquiring the current SOC of the battery of the vehicle and a current driving working condition; determining an SOC adjustment strategy of the vehicle according to the current SOC, the target SOC lower limit point, the target SOC balance point and the current driving working condition, and adjusting the battery SOC of the vehicle according to the SOC adjustment strategy. Therefore, by dynamically adjusting the lower limit point of the vehicle SOC, the corresponding SOC adjustment strategy is matched, so that when the vehicle SOC breaks through the lower limit of the balance point, the vehicle SOC can be adjusted according to the vehicle SOC, the normal driving of the vehicle under extreme working conditions is ensured, and the driving experience of the user is ensured.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a method, device, vehicle, medium, and product for dynamic adjustment of battery SOC. Background Technology

[0002] Hybrid electric vehicles can operate in two phases based on the battery charge level: the charge consumption (CD) phase and the charge sustainment (CS) phase. During the charge consumption (CS) phase, the battery's balance point setting significantly impacts the operating points of the engine and electric motor, thereby affecting the overall vehicle performance.

[0003] In related technologies, the balance point of a power battery is generally set to a fixed value.

[0004] However, in actual driving, when the vehicle's operating conditions and ambient temperature vary, if the same balance point is used to control the battery, the vehicle may break down or become unable to start again under certain extreme conditions, such as driving in cold regions, which greatly reduces the user's driving experience. Summary of the Invention

[0005] This invention provides a method, device, vehicle, medium, and product for dynamic adjustment of battery SOC, to solve the problem that in related technologies, using only one balance point to control the battery can lead to insufficient battery power under extreme conditions, affecting the driving experience. This invention enables the power battery to maintain the power required for normal operation even under extreme conditions, ensuring normal vehicle operation and protecting the user's driving experience.

[0006] To achieve the above objectives, a first aspect of the present invention provides a method for dynamically adjusting the state of charge (SOC) of a battery, comprising the following steps:

[0007] Obtain the vehicle's current ambient temperature;

[0008] If the current ambient temperature is less than or equal to the preset temperature, the target SOC lower limit and the target SOC balance point are determined based on the current ambient temperature, and the current SOC and current driving conditions of the vehicle's battery are obtained.

[0009] The vehicle's SOC adjustment strategy is determined based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and the vehicle's battery SOC is adjusted according to the SOC adjustment strategy.

[0010] According to one embodiment of the present invention, determining the vehicle's SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and adjusting the vehicle's battery SOC according to the SOC adjustment strategy, includes:

[0011] Determine whether the current SOC is less than the target SOC lower limit point;

[0012] If the current SOC is less than the target SOC lower limit, then determine whether the vehicle meets the preset charging conditions based on the current driving conditions;

[0013] If the vehicle meets the preset recharge conditions, the battery is charged so that the battery SOC is greater than or equal to the target SOC balance point.

[0014] According to one embodiment of the present invention, after determining whether the vehicle meets the preset recharge conditions, the method further includes:

[0015] If the vehicle does not meet the preset recharge conditions, the battery will be controlled to stop outputting power.

[0016] According to an embodiment of the present invention, after determining whether the current SOC is less than the target SOC lower limit, the method further includes:

[0017] If the current SOC is greater than or equal to the target SOC lower limit, then determine whether the current SOC is less than the target SOC equilibrium point;

[0018] If the current SOC is less than the target SOC balance point, then the electrical equipment of the vehicle that meets the preset shutdown conditions is turned off, so that the battery SOC is restored to the target SOC balance point; otherwise, no adjustment is made.

[0019] According to an embodiment of the present invention, after determining whether the current SOC is less than the target SOC equilibrium point, the method further includes:

[0020] If the current SOC is greater than or equal to the target SOC balance point, then the current output of the battery is maintained.

[0021] According to one embodiment of the present invention, after obtaining the current ambient temperature of the vehicle, the method further includes:

[0022] If the current ambient temperature is greater than the preset temperature, then the current SOC lower limit and the current SOC equilibrium point of the battery are maintained.

[0023] The battery SOC dynamic adjustment method proposed in this embodiment of the invention determines a target SOC lower limit and a target SOC equilibrium point based on the current ambient temperature when the ambient temperature is less than or equal to a preset temperature. It also detects the vehicle's current SOC and current driving conditions, matches a corresponding vehicle SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC equilibrium point, and the current driving conditions, and adjusts the vehicle's battery SOC according to the adjustment strategy. Therefore, by dynamically adjusting the vehicle's SOC lower limit and matching the corresponding SOC adjustment strategy, when the vehicle's SOC exceeds the equilibrium point lower limit, targeted adjustments can be made according to the vehicle's SOC situation, ensuring normal vehicle operation under extreme conditions and protecting the user's driving experience.

[0024] To achieve the above objectives, a second aspect of the present invention provides a battery SOC dynamic adjustment device, comprising:

[0025] The acquisition module is used to acquire the current ambient temperature of the vehicle;

[0026] The determination module is used to determine the target SOC lower limit point and the target SOC balance point based on the current ambient temperature when the current ambient temperature is less than or equal to a preset temperature, and to obtain the current SOC of the vehicle's battery and the current driving conditions.

[0027] The adjustment module is used to determine the vehicle's SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and to adjust the vehicle's battery SOC according to the SOC adjustment strategy.

[0028] According to one embodiment of the present invention, the adjustment module is specifically used for:

[0029] Determine whether the current SOC is less than the target SOC lower limit point;

[0030] If the current SOC is less than the target SOC lower limit, then determine whether the vehicle meets the preset charging conditions based on the current driving conditions;

[0031] If the vehicle meets the preset recharge conditions, the battery is charged so that the battery SOC is greater than or equal to the target SOC balance point.

[0032] According to one embodiment of the present invention, the adjustment module is further configured to:

[0033] If the vehicle does not meet the preset recharge conditions, the battery will be controlled to stop outputting power.

[0034] According to one embodiment of the present invention, the adjustment module is further configured to:

[0035] If the current SOC is greater than or equal to the target SOC lower limit, then determine whether the current SOC is less than the target SOC equilibrium point;

[0036] If the current SOC is less than the target SOC balance point, then the electrical equipment of the vehicle that meets the preset shutdown conditions is turned off, so that the battery SOC is restored to the target SOC balance point; otherwise, no adjustment is made.

[0037] According to one embodiment of the present invention, the adjustment module is further configured to:

[0038] If the current SOC is greater than or equal to the target SOC balance point, then the current output of the battery is maintained.

[0039] According to an embodiment of the present invention, the acquisition module is further configured to:

[0040] If the current ambient temperature is greater than the preset temperature, then the current SOC lower limit and the current SOC equilibrium point of the battery are maintained.

[0041] The battery SOC dynamic adjustment device proposed in this embodiment of the invention determines a target SOC lower limit and a target SOC equilibrium point based on the current ambient temperature when the ambient temperature is less than or equal to a preset temperature. It also detects the vehicle's current SOC and current driving conditions, matches a corresponding vehicle SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC equilibrium point, and the current driving conditions, and adjusts the vehicle's battery SOC according to the adjustment strategy. Thus, by dynamically adjusting the vehicle's SOC lower limit and matching the corresponding SOC adjustment strategy, when the vehicle's SOC exceeds the equilibrium point lower limit, targeted adjustments can be made according to the vehicle's SOC situation, ensuring normal vehicle operation under extreme conditions and protecting the user's driving experience.

[0042] To achieve the above objectives, a third aspect of the present invention provides a vehicle comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the battery SOC dynamic adjustment method as described in the above embodiments.

[0043] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the battery SOC dynamic adjustment method as described in the above embodiments.

[0044] To achieve the above objectives, a fifth aspect of the present invention provides a computer program product, including a computer program that, when executed by a processor, is used to implement the battery SOC dynamic adjustment method as described in the above embodiments.

[0045] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0046] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0047] Figure 1 A flowchart illustrating a method for dynamically adjusting the SOC of a battery according to an embodiment of the present invention;

[0048] Figure 2 This is a flowchart illustrating a method for dynamically adjusting the SOC of a battery according to a specific embodiment of the present invention.

[0049] Figure 3 A block diagram of a battery SOC dynamic adjustment device according to an embodiment of the present invention;

[0050] Figure 4 This is a structural schematic diagram of a vehicle provided according to an embodiment of the present invention.

[0051] Figure label:

[0052] 10 - Battery SOC dynamic adjustment device; 100 - Acquisition module, 200 - Determination module, 300 - Adjustment module; 401 - Memory, 402 - Processor, 403 - Communication interface. Detailed Implementation

[0053] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0054] The following description, with reference to the accompanying drawings, outlines a method, apparatus, vehicle, medium, and product for dynamically adjusting the state of charge (SOC) of a battery according to embodiments of the present invention. First, the method for dynamically adjusting the SOC of a battery according to embodiments of the present invention will be described with reference to the accompanying drawings.

[0055] To address the problem in the background technology where controlling the battery using only a single equilibrium point can lead to insufficient battery power in extreme conditions, affecting the driving experience, this invention provides a method for dynamically adjusting the State of Charge (SOC) of the battery. This method determines the target lower limit of SOC and the target SOC equilibrium point based on the current ambient temperature, obtains the vehicle's current SOC and current driving conditions, and combines the current SOC, the target lower limit of SOC, the target SOC equilibrium point, and the current driving conditions to match a corresponding vehicle SOC adjustment strategy. The battery SOC is then adjusted according to this strategy. Therefore, by dynamically adjusting the vehicle's lower limit of SOC and matching the corresponding SOC adjustment strategy, when the vehicle's SOC exceeds the equilibrium point's lower limit, targeted adjustments can be made based on the vehicle's SOC status, ensuring normal vehicle operation under extreme conditions and protecting the user's driving experience.

[0056] Figure 1 This is a flowchart of a battery SOC dynamic adjustment method provided in one embodiment of the present invention.

[0057] like Figure 1 As shown, the SOC dynamic adjustment method for this battery includes the following steps:

[0058] In step S101, the current ambient temperature of the vehicle is obtained.

[0059] It should be noted that this invention aims to address the dynamic adjustment of vehicle battery SOC under extreme operating conditions. A common extreme operating condition is caused by low temperatures. When a vehicle is driven in cold regions, the required SOC value for startup is higher than that under normal operating conditions due to the lower ambient temperature. Therefore, it is necessary to detect the ambient temperature when setting the SOC value.

[0060] Specifically, embodiments of the present invention can collect the current ambient temperature of the vehicle by using a temperature sensor on the vehicle body.

[0061] In step S102, if the ambient temperature is less than or equal to the preset temperature, the target SOC lower limit point and the target SOC balance point are determined based on the current ambient temperature, and the current SOC of the vehicle's battery and the current driving conditions are obtained.

[0062] The preset temperature can be a user-defined temperature value, a temperature value obtained through a limited number of experiments, or a temperature value obtained through a limited number of computer simulations; no specific limitations are imposed here. The current driving condition refers to the current operating condition of the vehicle, such as starting, accelerating, maintaining a constant speed, decelerating, turning, going uphill / downhill, and stopping.

[0063] Specifically, when the ambient temperature is less than or equal to the preset temperature, the vehicle is in a low-temperature environment. It is necessary to redetermine the target SOC lower limit and target SOC balance point based on the ambient temperature, while also taking into account the current SOC of the vehicle battery and the current driving conditions.

[0064] For example, one method for determining the target SOC lower limit based on ambient temperature according to an embodiment of the present invention is as follows: A preset temperature is set to 0°C. When the current ambient temperature is >0°C, the target SOC lower limit is not adjusted, and the default SOC lower limit is 30%. When the temperature drops below 0°C, the target SOC lower limit is adjusted according to the current ambient temperature: when the current ambient temperature is equal to 0°C, the SOC lower limit is increased to 35%; when the temperature is between 0 and -10°C, the SOC lower limit is increased to 40%; when the temperature is between -10°C and -20°C, the SOC lower limit is increased to 45%; when the temperature is between 0 and -10°C, the SOC lower limit is increased to 40%; when the temperature is between -20°C and -30°C, the SOC lower limit is increased to 50%, as shown in Table 1.

[0065] Table 1

[0066] -30 50 -20 45 -10 40 0 35 ＞0 30

[0067] In step S103, the vehicle's SOC adjustment strategy is determined based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and the vehicle's battery SOC is adjusted according to the SOC adjustment strategy.

[0068] Specifically, to extend the driving time of a vehicle battery, it is necessary to increase battery power during vehicle acceleration and control the battery's State of Charge (SOC) to return to the equilibrium point during smooth driving. Therefore, when the vehicle is in operating conditions such as acceleration or climbing, it is also necessary to evaluate the vehicle's remaining SOC after acceleration or climbing to match a suitable target SOC for the vehicle. This invention can comprehensively consider the current SOC, the target SOC lower limit, the target SOC equilibrium point, and the current driving conditions to match a suitable SOC adjustment strategy for the vehicle, ensuring that the vehicle's battery SOC is in a state suitable for the current operating conditions.

[0069] Optionally, in some embodiments, a vehicle SOC adjustment strategy is determined based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and the vehicle's battery SOC is adjusted according to the SOC adjustment strategy, including: determining whether the current SOC is less than the target SOC lower limit; if the current SOC is less than the target SOC lower limit, determining whether the vehicle meets preset charging conditions based on the current driving conditions; if the vehicle meets the preset charging conditions, charging the battery so that the battery SOC is greater than or equal to the target SOC balance point.

[0070] The preset recharge conditions can be user-defined recharge conditions or recharge conditions obtained through a limited number of experiments. For example, it can be used to determine whether the current SOC is too low or whether the vehicle generator has malfunctioned. This embodiment of the invention does not impose any specific limitations on these conditions.

[0071] Specifically, in this embodiment of the invention, the current SOC of the power battery can be obtained through the BMS (Battery Management System). If the current SOC is less than the target SOC lower limit, it indicates that the vehicle may have insufficient power. In this case, the power battery needs to be recharged to ensure the normal use of the vehicle battery. Before recharging the power battery, it is necessary to determine whether the current operating conditions of the vehicle support recharging. If the preset recharging conditions are met, the generator is controlled to charge the power battery.

[0072] For example, once the target SOC of the vehicle is determined, the current SOC of the vehicle is obtained through the BMS. When the current SOC of the vehicle is less than the target SOC, it is determined whether the remaining power of the vehicle meets the working requirements of the generator. If the vehicle has redundant power, the generator is controlled to recharge the power battery until the battery SOC is greater than or equal to the target SOC balance point.

[0073] Therefore, this embodiment of the invention determines the target SOC lower limit and the target SOC balance point based on the current ambient temperature, obtains the vehicle's current SOC and current driving conditions, combines the current SOC, the target SOC lower limit, the target SOC balance point and the current driving conditions to match the corresponding vehicle SOC adjustment strategy, and adjusts the vehicle's battery SOC according to the adjustment strategy.

[0074] Optionally, in some embodiments, after determining whether the vehicle meets the preset recharge conditions, the method further includes: if the vehicle does not meet the preset recharge conditions, controlling the battery to stop outputting power.

[0075] Specifically, if the vehicle does not meet the preset recharge conditions, it means that the battery charge is at an extremely low level. Continuing to output power would severely damage the battery and reduce the vehicle's lifespan, and should be avoided at all costs. Therefore, in this embodiment of the invention, when the vehicle does not meet the preset recharge conditions, the battery is controlled to stop outputting power, and the battery's power source is switched to the engine or fuel cell.

[0076] Optionally, in some embodiments, after determining whether the current SOC is less than the target SOC lower limit, the method further includes: if the current SOC is greater than or equal to the target SOC lower limit, then determining whether the current SOC is less than the target SOC balance point; if the current SOC is less than the target SOC balance point, then shutting down the electrical equipment of the vehicle that meets the preset shutdown conditions, so that the battery SOC returns to the target SOC balance point; otherwise, no adjustment is made.

[0077] The preset shutdown conditions refer to the shutdown conditions set by the user in advance, such as power consumption exceeding a certain value. This invention does not impose specific limitations on these conditions.

[0078] Specifically, after obtaining the current SOC, if the current SOC is greater than or equal to the target SOC lower limit, the current SOC is compared with the target SOC balance point. If the current SOC is greater than or equal to the target SOC lower limit but less than the target SOC balance point, electrical equipment with preset shutdown conditions is turned off. This can be electrical equipment that does not affect the normal operation of the vehicle, such as windshield wipers or ambient lighting, so that the battery SOC can slowly recover to the target SOC balance point. If the current SOC is greater than the target SOC balance point, it means that the vehicle has excess power and no adjustment is required.

[0079] Optionally, in some embodiments, after determining whether the current SOC is less than the target SOC balance point, the method further includes: if the current SOC is greater than or equal to the target SOC balance point, then maintaining the current output of the battery.

[0080] Specifically, when the current SOC is greater than or equal to the target SOC balance point, it means that the vehicle battery is in a normal discharge state and the vehicle's remaining charge is in a surplus state. Even if the vehicle is under extreme conditions, the vehicle's battery power can still ensure normal vehicle operation. Therefore, when the current SOC is greater than or equal to the target SOC balance point, it is only necessary to maintain the current output of the battery and there is no need to adjust the current SOC.

[0081] Optionally, in some embodiments, after obtaining the current ambient temperature of the vehicle, the method further includes: if the current ambient temperature is greater than a preset temperature, maintaining the current SOC lower limit and the current SOC balance point of the battery.

[0082] Specifically, after the vehicle's temperature sensor obtains the current ambient temperature, if the current ambient temperature is greater than the preset temperature, it means that the current ambient temperature does not meet the conditions for driving in cold regions. Therefore, it is not necessary to adjust the SOC of the vehicle battery. Instead, the battery's current SOC lower limit and current SOC balance point are maintained until the current ambient temperature is lower than the preset temperature.

[0083] To enable those skilled in the art to further understand the battery SOC dynamic adjustment method of the embodiments of this application, the following detailed description is provided in conjunction with specific embodiments.

[0084] Specifically, such as Figure 2 As shown, Figure 2 This is a flowchart illustrating a method for dynamically adjusting the state of charge (SOC) of a battery according to a specific embodiment of the present invention. The method includes:

[0085] S201, presets the lower limit of SOC at different temperatures.

[0086] S202, determine whether the lower limit of SOC needs to be adjusted. If the ambient temperature is greater than the threshold temperature, no adjustment is needed, and proceed to step S203. If the ambient temperature is less than or equal to the threshold temperature, adjust the lower limit of SOC according to the ambient temperature, and continue to step S204.

[0087] S203, read the ambient temperature, then re-execute S202.

[0088] S204, read the current SOC value.

[0089] S205, determine the current state of SOC. If the current SOC value is above the equilibrium point, proceed to step S206; if the current SOC value is between the equilibrium point and the lower limit point, proceed to step S207; if the current SOC value falls below the lower limit point, proceed to step S208.

[0090] S206, no adjustment is required.

[0091] S207, adjust the current SOC value back to the equilibrium point as soon as possible.

[0092] S208 determines whether the current operating conditions allow for recharging. If the vehicle's power is insufficient and recharging is not possible, execute S208; if the vehicle's power is redundant and recharging is possible, execute S209.

[0093] S209 aims to prevent the battery from outputting power and then re-performs the recharge condition judgment in S208.

[0094] S210, SOC adjusted to the equilibrium point.

[0095] The battery SOC dynamic adjustment method proposed in this embodiment of the invention determines a target SOC lower limit and a target SOC equilibrium point based on the current ambient temperature when the ambient temperature is less than or equal to a preset temperature. It also detects the vehicle's current SOC and current driving conditions, matches a corresponding vehicle SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC equilibrium point, and the current driving conditions, and adjusts the vehicle's battery SOC according to the adjustment strategy. Therefore, by dynamically adjusting the vehicle's SOC lower limit and matching the corresponding SOC adjustment strategy, when the vehicle's SOC exceeds the equilibrium point lower limit, targeted adjustments can be made according to the vehicle's SOC situation, ensuring normal vehicle operation under extreme conditions.

[0096] Next, the SOC dynamic adjustment device for a battery according to an embodiment of the present invention is described with reference to the accompanying drawings.

[0097] Figure 3This is a block diagram of a battery SOC dynamic adjustment device according to an embodiment of the present invention.

[0098] like Figure 3 As shown, the SOC dynamic adjustment device 10 of the battery includes: an acquisition module 100, a determination module 200, and an adjustment module 300.

[0099] The acquisition module 100 is used to acquire the current ambient temperature of the vehicle.

[0100] The determination module 200 is used to determine the target SOC lower limit point and the target SOC balance point based on the current ambient temperature when the current ambient temperature is less than or equal to the preset temperature, and to obtain the current SOC of the vehicle's battery and the current driving conditions.

[0101] The adjustment module 300 is used to determine the vehicle's SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and adjust the vehicle's battery SOC according to the SOC adjustment strategy.

[0102] According to one embodiment of the present invention, the adjustment module 300 is specifically used to: determine whether the current SOC is less than the target SOC lower limit; if the current SOC is less than the target SOC lower limit, determine whether the vehicle meets the preset charging conditions based on the current driving conditions; if the vehicle meets the preset charging conditions, charge the battery so that the battery SOC is greater than or equal to the target SOC balance point.

[0103] According to one embodiment of the present invention, the adjustment module 300 is further configured to: control the battery to stop outputting power if the vehicle does not meet the preset recharge conditions.

[0104] According to one embodiment of the present invention, the adjustment module 300 is further configured to: if the current SOC is greater than or equal to the target SOC lower limit, determine whether the current SOC is less than the target SOC balance point; if the current SOC is less than the target SOC balance point, shut down the electrical equipment of the vehicle that meets the preset shutdown conditions, so that the battery SOC is restored to the target SOC balance point; otherwise, no adjustment is made.

[0105] According to one embodiment of the present invention, the adjustment module 300 is further configured to: maintain the current output of the battery if the current SOC is greater than or equal to the target SOC balance point.

[0106] According to one embodiment of the present invention, the acquisition module 100 is further configured to: if the current ambient temperature is greater than a preset temperature, maintain the current SOC lower limit point and the current SOC balance point of the battery.

[0107] The battery SOC dynamic adjustment device proposed in this embodiment of the invention determines a target SOC lower limit and a target SOC equilibrium point based on the current ambient temperature when the ambient temperature is less than or equal to a preset temperature. It also detects the vehicle's current SOC and current driving conditions, matches a corresponding vehicle SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC equilibrium point, and the current driving conditions, and adjusts the vehicle's battery SOC according to the adjustment strategy. Thus, by dynamically adjusting the vehicle's SOC lower limit and matching the corresponding SOC adjustment strategy, when the vehicle's SOC exceeds the equilibrium point lower limit, targeted adjustments can be made according to the vehicle's SOC situation, ensuring normal vehicle operation under extreme conditions.

[0108] Figure 4 This is a schematic diagram of a vehicle provided in an embodiment of the present invention. The vehicle may include:

[0109] The memory 401, the processor 402, and the computer program stored on the memory 401 and capable of running on the processor 402.

[0110] When the processor 402 executes the program, it implements the battery SOC dynamic adjustment method provided in the above embodiments.

[0111] Furthermore, the vehicle also includes:

[0112] Communication interface 403 is used for communication between memory 401 and processor 402.

[0113] The memory 401 is used to store computer programs that can run on the processor 402.

[0114] The memory 401 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0115] If the memory 401, processor 402, and communication interface 403 are implemented independently, then the communication interface 403, memory 401, and processor 402 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0116] Optionally, in a specific implementation, if the memory 401, processor 402, and communication interface 403 are integrated on a single chip, then the memory 401, processor 402, and communication interface 403 can communicate with each other through an internal interface.

[0117] Processor 402 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of the present invention.

[0118] This invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described battery SOC dynamic adjustment method.

[0119] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described battery SOC dynamic adjustment method.

[0120] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0121] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0122] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for dynamically adjusting the SOC of a battery, characterized in that, Includes the following steps: Obtain the vehicle's current ambient temperature; If the current ambient temperature is less than or equal to the preset temperature, then the target SOC lower limit point and the target SOC balance point are determined based on the current ambient temperature, and the current SOC of the vehicle's battery and the current driving condition are obtained; wherein, the current driving condition includes at least one of starting, accelerating, constant speed, deceleration, turning, going uphill or downhill and stopping; The vehicle's SOC adjustment strategy is determined based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and the vehicle's battery SOC is adjusted according to the SOC adjustment strategy. The step of determining the vehicle's SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and adjusting the vehicle's battery SOC according to the SOC adjustment strategy, includes: Determine whether the current SOC is less than the target SOC lower limit point; If the current SOC is less than the target SOC lower limit, then determine whether the vehicle meets the preset charging conditions based on the current driving conditions; The preset recharge conditions are: the vehicle has sufficient power redundancy and the vehicle's remaining power can meet the generator's charging requirements for the battery. If the vehicle meets the preset recharge conditions, the battery is charged so that the battery SOC is greater than or equal to the target SOC balance point; After determining whether the current SOC is less than the target SOC lower limit, the method further includes: If the current SOC is greater than or equal to the target SOC lower limit, then determine whether the current SOC is less than the target SOC equilibrium point; If the current SOC is less than the target SOC balance point, then the electrical equipment of the vehicle that meets the preset shutdown conditions is turned off, so that the battery SOC is restored to the target SOC balance point; otherwise, no adjustment is made. The preset shutdown condition is electrical equipment in the vehicle that does not affect the normal operation of the vehicle.

2. The method according to claim 1, characterized in that, After determining whether the vehicle meets the preset recharge conditions, the method further includes: If the vehicle does not meet the preset recharge conditions, the battery will be controlled to stop outputting power.

3. The method according to claim 1, characterized in that, After determining whether the current SOC is less than the target SOC equilibrium point, the method further includes: If the current SOC is greater than or equal to the target SOC balance point, then the current output of the battery is maintained.

4. The method according to claim 1, characterized in that, After obtaining the current ambient temperature of the vehicle, the method further includes: If the current ambient temperature is greater than the preset temperature, then the current SOC lower limit and the current SOC equilibrium point of the battery are maintained.

5. A battery SOC dynamic adjustment device to implement the battery SOC dynamic adjustment method as described in any one of claims 1-4, characterized in that, include: The acquisition module is used to acquire the current ambient temperature of the vehicle; The determination module is used to determine the target SOC lower limit point and the target SOC balance point based on the current ambient temperature when the current ambient temperature is less than or equal to a preset temperature, and to obtain the current SOC of the vehicle's battery and the current driving conditions. The adjustment module is used to determine the vehicle's SOC adjustment strategy based on the current SOC, the target SOC lower limit, the target SOC balance point, and the current driving conditions, and to adjust the vehicle's battery SOC according to the SOC adjustment strategy.

6. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the battery SOC dynamic adjustment method as described in any one of claims 1-4.

7. A computer storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the SOC dynamic adjustment method for the battery as described in any one of claims 1-4.

8. A computer program product, characterized in that, Includes a computer program, which, when executed by a processor, is used to implement the SOC dynamic adjustment method for the battery according to any one of claims 1-4.

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