Vehicle charging control method, electronic equipment and vehicle

Abstract

The invention relates to the technical field of vehicle charging, and provides a vehicle charging control method, electronic equipment and a vehicle, it is determined that the vehicle is connected with a charging pile, the current battery temperature and the first battery voltage at the current moment are obtained, and a target latch voltage is determined according to the current battery temperature; and determining a target steady-state request current according to the target latch voltage and the first battery voltage, determining a target request current according to the target steady-state request current, and sending the target request current to the charging pile, so that the situation that the request current is limited in advance due to the fact that the voltage rises instantly when charging is started is avoided, and the charging efficiency is improved. And therefore, the charging efficiency is improved. And meanwhile, the problem of unstable charging current caused by temperature and voltage shifting in the charging process is avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle charging technology, and in particular to a vehicle charging control method, electronic equipment, and vehicle. Background Technology

[0002] With the rapid development of vehicle technology, vehicles have become an important means of transportation in people's daily lives. During vehicle charging, the battery management system adjusts the charging current according to the charging request, using either fast or slow charging methods.

[0003] Because the battery management system determines the corresponding charging request current by looking up the charging MAP table based on the battery temperature and battery voltage, and the battery temperature and battery voltage change in real time during the charging process, the charging request current fluctuates repeatedly, which affects the charging efficiency. Summary of the Invention

[0004] In view of this, the purpose of this disclosure is to propose a vehicle charging control method, electronic device and vehicle to solve the problem that the charging request current fluctuates repeatedly due to the real-time changes in battery temperature and battery voltage during the charging process, which affects the charging efficiency.

[0005] To achieve the above objectives, the first aspect of this disclosure provides a vehicle charging control method, the method comprising: Determine if the vehicle is connected to the charging station, obtain the current battery temperature and the first battery voltage at the current moment, and determine the target latching voltage based on the current battery temperature; The target steady-state request current is determined based on the target latching voltage and the first battery voltage, and the target request current is then sent to the charging pile.

[0006] In some embodiments, determining the target latch voltage based on the current battery temperature includes: Based on the current battery temperature, determine the target voltage reset threshold corresponding to the current battery temperature; Obtain the second battery voltage from the previous time step at the current time step, and determine the target latch voltage based on the first battery voltage, the second battery voltage, and the target voltage reset threshold.

[0007] In some embodiments, determining the target latch voltage based on the first battery voltage, the second battery voltage, and the target voltage reset threshold includes: The voltage difference between the second battery voltage and the first battery voltage is calculated to obtain the voltage difference value; In response to the voltage difference being greater than the target voltage reset threshold, the target latch voltage is determined to be the first battery voltage; or... In response to the voltage difference being less than or equal to the target voltage reset threshold, the target latch voltage is determined to be the second battery voltage.

[0008] The above scheme determines the target latching voltage by comparing the decrease in battery voltage between the current and previous moments. When the battery voltage change is small, the latching voltage remains the same as the voltage before the decrease. When the battery voltage change is large, the latching voltage is the voltage after the decrease. This avoids repeated adjustments to the target requested current due to short-term fluctuations when subsequently using the target latching voltage to determine the target requested current, thus improving charging efficiency.

[0009] In some embodiments, determining the target steady-state requested current based on the target latch voltage and the first battery voltage includes: The first requested current is obtained by looking up the charging data table based on the target latching voltage; The second requested current is obtained by looking up the charging data table based on the first battery voltage. The first requested current is compared with the second requested current to obtain a comparison result, and the target steady-state requested current is determined based on the comparison result.

[0010] In some embodiments, determining the target steady-state requested current based on the comparison result includes: In response to the comparison result indicating that the first requested current is greater than or equal to the second requested current, the target steady-state requested current is determined to be the second requested current; or, In response to the comparison result that the first requested current is less than the second requested current, the difference between the second requested current and the first requested current is calculated to obtain the current difference value, and the target steady-state requested current is determined based on the current difference value.

[0011] According to the above scheme, when the comparison result shows that the first requested current is greater than or equal to the second requested current, it indicates that the first requested current determined by the target latching voltage is too large. Charging according to the first requested current determined by the latching voltage exceeds the safe range that the vehicle battery can withstand under the current actual conditions, which may lead to battery overcharging, excessive voltage, or other safety issues. Selecting the second requested current determined based on the current battery voltage as the target steady-state requested current, i.e., charging using the second requested current, better matches the actual charging needs of the battery under the current voltage, ensuring the safety and reliability of the charging process.

[0012] In some embodiments, determining the target steady-state requested current based on the current difference includes: In response to the current difference being greater than a preset current threshold, the target steady-state requested current is determined to be the second requested current; or, In response to the current difference being less than or equal to the preset current threshold, the target steady-state requested current is determined to be the first requested current.

[0013] The above approach ensures that the current battery voltage more closely reflects the actual state of the vehicle battery, while the target latching voltage may not accurately reflect the actual needs of the vehicle battery due to limitations in its preset value. Therefore, when the second requested current determined by the current battery voltage is significantly greater than the first requested current determined by the target latching voltage, the second requested current determined by the current battery voltage is selected as the target steady-state requested current. This ensures that the subsequent charging current matches the actual state of the vehicle battery, thereby guaranteeing the safety and effectiveness of the charging process.

[0014] Meanwhile, because the latching voltage is pre-set based on the battery's design parameters and safety standards, it has high reliability and stability. Therefore, although the first requested current determined based on the current battery voltage is higher than the second requested current determined based on the target latching voltage, the difference between the two is not significant. Using the second requested current determined by the target latching voltage as the target steady-state requested current, and selecting the first requested current determined by the target latching voltage, can ensure a safer and more stable charging process, while avoiding potential risks caused by current fluctuations.

[0015] In some embodiments, determining the target requested current based on the target steady-state requested current includes: The operating status of vehicle accessories in the vehicle is obtained, wherein the vehicle accessories refer to components other than the equipment required for the basic operation of the vehicle; The target requested current is determined based on the operating state and the target steady-state requested current.

[0016] In some embodiments, determining the target requested current based on the operating state and the target steady-state requested current includes: In response to the operating state being a non-operating state, the target steady-state requested current is used as the target requested current; or... In response to the operating state being in working state, the compensation accessory current is obtained, and the target steady-state requested current is summed with the compensation accessory current to obtain the target requested current.

[0017] The above scheme ensures that the target requested current sent to the charging pile includes not only the target steady-state requested current of the vehicle battery, but also the compensation accessory current corresponding to other vehicle accessories. This ensures that the total current provided by the charging pile can meet the dual needs of vehicle battery charging and accessory operation, thereby guaranteeing the stability and safety of the charging process.

[0018] Based on the same inventive concept, a second aspect of this disclosure provides a vehicle charging control device, comprising: The latching voltage determination module is configured to determine the connection between the vehicle and the charging pile, obtain the current battery temperature and the first battery voltage at the current moment, and determine the target latching voltage based on the current battery temperature. The request current determination module is configured to determine a target steady-state request current based on the target latching voltage and the first battery voltage, determine a target request current based on the target steady-state request current, and send the target request current to the charging pile.

[0019] Based on the same inventive concept, a third aspect of this disclosure proposes an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor, when executing the computer program, implements the vehicle charging control method as described above.

[0020] Based on the same inventive concept, a fourth aspect of this disclosure provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the vehicle charging control method as described above.

[0021] Based on the same inventive concept, the fifth aspect of this disclosure provides a vehicle including the vehicle charging control device described in the second aspect, the electronic device described in the third aspect, or the storage medium described in the fourth aspect.

[0022] As can be seen from the above, this disclosure proposes a vehicle charging control method, electronic device, and vehicle. Upon confirming the vehicle's connection to a charging pile, indicating that the vehicle is being charged via the charging pile, the vehicle needs to send a target requested current to the charging pile to complete the charging process. The method involves acquiring the current battery temperature and a first battery voltage, and determining a target latching voltage based on the current battery temperature. This target latching voltage represents the voltage value locked during the vehicle's charging process. A target steady-state requested current is determined based on the target latching voltage and the first battery voltage. This target requested current is then sent to the charging pile, preventing a sudden voltage spike at the start of charging, which could lead to premature current limiting and excessively long charging times, thus improving charging efficiency. Simultaneously, it avoids instability in the charging current caused by temperature and voltage fluctuations during charging, improving the user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a flowchart of a vehicle charging control method according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of battery voltage changes in an embodiment of this disclosure; Figure 3 This is a structural block diagram of a vehicle charging control device according to an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] The following are definitions of terms used in this disclosure: BMS: The Battery Management System (BMS) is a critical system in electric vehicles used to monitor and manage the battery pack. It ensures the battery operates safely and reliably by monitoring parameters such as voltage, current, and temperature, while optimizing the charging and discharging process to extend battery life and improve vehicle performance and driving range.

[0028] SOC: State of Charge (SOC) refers to the percentage of a battery's total capacity that remains chargeable. It visually reflects the battery's remaining charge level. For example, an SOC of 50% indicates that the battery has half its total capacity remaining. By accurately monitoring and displaying SOC, drivers can better understand their vehicle's range, plan their trips accordingly, and avoid inconvenience caused by insufficient battery power.

[0029] DCDC: A vehicle DC-DC converter (DCDC) is a power conversion device used to convert the high-voltage DC power supplied by the vehicle's power battery into low-voltage DC power to meet the power supply needs of low-voltage electrical equipment in the vehicle (such as headlights, audio, electronic control units, etc.), ensuring that these devices can work normally. At the same time, it can also charge the low-voltage battery when the vehicle is started, maintaining the stable operation of the vehicle's electrical system.

[0030] PTC: A positive temperature coefficient thermistor is a heating element commonly used in the air conditioning and heating systems of electric vehicles. It heats the air by generating Joule heat when an electric current flows through it, providing warmth to the vehicle interior. PTC heaters have automatic temperature control characteristics; as the temperature rises, the resistance increases and the power decreases, thus avoiding overheating and ensuring safe and reliable heating, providing a comfortable in-vehicle environment for passengers.

[0031] Charging Map: A vehicle charging map is a key tool for optimizing the battery charging process. Based on parameters such as battery temperature and state of charge, it dynamically determines the maximum allowable charging power or current of the battery under different operating conditions through a two-dimensional lookup table. This table can effectively prevent battery damage caused by overcharging, overcurrent, etc., while improving charging efficiency and extending battery life.

[0032] In related technologies, when a vehicle connects to a charging device and sends a charging request, the battery management system (BMS) determines whether to use fast charging or slow charging mode based on the vehicle's current battery status and the current magnitude in the charging request. If the charging request current is large and the battery status allows, the BMS will activate fast charging mode, allowing the vehicle to acquire more power in a shorter time. If the charging request current is small, or the battery is in a state unsuitable for fast charging (such as near full charge), slow charging mode will be selected to charge the vehicle more gently, ensuring a safe and efficient charging process.

[0033] When determining the charging request current, the Battery Management System (BMS) consults an internally stored charging map table. This charging map table details the relationships between various factors, such as battery state, ambient temperature, battery health status, and battery temperature, and the charging current. When the vehicle begins charging, the BMS comprehensively considers key parameters such as the remaining battery charge, temperature, and voltage, and then searches the charging map table for a matching charging current value. This allows for precise determination of the charging request current, ensuring both efficient and safe charging while extending battery life.

[0034] Because the battery management system determines the corresponding charging request current by looking up the charging MAP table based on the battery temperature and battery voltage, and the battery temperature and battery voltage change in real time during the charging process, the charging request current fluctuates repeatedly, which affects the charging efficiency.

[0035] Meanwhile, since the charging MAP table is pre-calibrated, the vehicle battery is assumed to be brand new during calibration. As the vehicle is used, the battery ages, and when the charging request current is found based on the charging MAP table, there is a problem of a large error in the determined charging request current.

[0036] Specifically, in low-temperature environments, the battery's rate setting may be too high. At the start of charging, due to inaccurate charging map data, the battery voltage may spike dramatically. This rapid voltage increase can cause the battery management system to misjudge the situation and prematurely limit the charging current. Consequently, the charging current is restricted to a lower level instead of the normal, higher level. Therefore, the charging speed will be significantly slower, resulting in a much longer charging time than normal, impacting the user's charging experience and the vehicle's operational efficiency.

[0037] Therefore, based on the above description, and addressing the current problems of reduced charging efficiency and decreased user experience caused by unstable current and current limiting, this embodiment proposes a vehicle charging control method, such as... Figure 1 As shown, the method includes: Step 101: Determine that the vehicle is connected to the charging pile, obtain the current battery temperature and the first battery voltage at the current moment, and determine the target latching voltage based on the current battery temperature.

[0038] In practice, when a vehicle is connected to a charging station, it means that the charging station connected to the vehicle is used to charge the vehicle. In order for the charging station to charge the vehicle, the vehicle first needs to send a target current request to the charging station.

[0039] The system acquires the current battery temperature and initial battery voltage. Specifically, multiple temperature sensors are installed inside the battery, distributed at different locations such as the center, edges, and key connection points of the battery pack, to ensure comprehensive monitoring of the battery's temperature distribution. When the battery is operating, these temperature sensors detect temperature changes in real time and transmit the collected temperature data to the vehicle. A voltage acquisition module is used to measure the battery voltage. This module is connected to the positive and negative terminals of the battery, as well as the connection points of each battery cell, to accurately measure the battery's terminal voltage and individual cell voltage.

[0040] After determining the current battery temperature and initial battery voltage of the vehicle battery, a target latching voltage is determined based on the current battery temperature. This target latching voltage represents the voltage value locked during vehicle charging. The target latching voltage ensures the stability and safety of the charging process. When the battery voltage reaches the target latching voltage, the battery management system takes measures to stabilize the voltage near this value to prevent overvoltage from causing battery damage or overcharging risks. By precisely controlling the voltage to reach and maintain the target latching voltage, charging efficiency can be optimized, battery life extended, and the charging process ensured to meet safety standards.

[0041] Step 102: Determine the target steady-state request current based on the target latching voltage and the first battery voltage, determine the target request current based on the target steady-state request current, and send the target request current to the charging pile.

[0042] In specific implementation, after determining the target latching voltage, the target steady-state request current is determined based on the target latching voltage and the first battery voltage. The target steady-state request current is the optimal request current value that satisfies the current battery temperature and the first battery voltage.

[0043] The target requested current is determined based on the target steady-state requested current and sent to the charging pile connected to the vehicle. Upon receiving the target requested current, the charging pile will strictly charge the vehicle according to this current value, ensuring the charging process conforms to the battery's characteristics, avoiding overcharging or undercharging, and extending battery life. Simultaneously, the vehicle sending the target requested current also enables communication matching between the charging pile and the vehicle, ensuring the charging pile's output power adapts to the vehicle's actual needs, improving charging efficiency, and preventing safety hazards caused by current mismatch, such as overcurrent protection triggering or equipment damage.

[0044] The above scheme establishes a connection between the vehicle and the charging station, indicating that the vehicle is being charged via the charging station. The vehicle needs to send a target requested current to the charging station to complete the charging process. The current battery temperature and first battery voltage are acquired, and a target latching voltage is determined based on the current battery temperature. This target latching voltage represents the voltage value locked during vehicle charging. A target steady-state requested current is determined based on the target latching voltage and the first battery voltage, and then the target requested current is sent to the charging station. This avoids a sudden voltage spike at the start of charging, which could lead to premature current limiting and excessively long charging times, thus improving charging efficiency. Simultaneously, it avoids instability in the charging current caused by temperature and voltage fluctuations during charging, improving the user experience.

[0045] In some embodiments, when determining the target latch voltage, a corresponding voltage reset threshold can first be determined based on the battery temperature, and then the voltage difference between the current battery voltage and the previous battery voltage can be compared with the voltage reset threshold to determine the target latch voltage. Specifically, determining the target latch voltage based on the current battery temperature in step 101 includes: Step 1011: Determine the target voltage reset threshold corresponding to the current battery temperature based on the current battery temperature; Step 1012: Obtain the second battery voltage of the previous time step at the current time step, and determine the target latch voltage based on the first battery voltage, the second battery voltage, and the target voltage reset threshold.

[0046] In specific implementation, the target voltage reset threshold corresponding to the current battery temperature is determined by searching the database based on the current battery temperature. The database stores the correspondence between battery temperature and voltage reset threshold. The form of the correspondence may include at least one of the following: relation table, function relation, curve relation, key-value pair relation, and bar chart relation.

[0047] In this embodiment, the target voltage reset threshold is the maximum voltage change between two adjacent moments due to normal fluctuations at the current battery temperature. When the voltage difference between two adjacent moments is less than or equal to the voltage reset threshold, it indicates that the voltage change between adjacent moments is small, which is considered a short-term voltage fluctuation. In this case, there is no need to adjust the requested current to avoid frequent adjustments. When the voltage difference between two adjacent moments is greater than the voltage reset threshold, it indicates that the voltage change between adjacent moments is large, exceeding the range of voltage fluctuations caused by normal short-term fluctuations. A new latching voltage should be determined to achieve accurate determination of the requested current.

[0048] For example, if the battery temperature is -20°C to -10°C, the corresponding target voltage reset threshold is determined to be 50V. If the battery temperature is -10°C to 0°C, the corresponding target voltage reset threshold is determined to be 100V. If the battery temperature is 0°C to 25°C, the corresponding target voltage reset threshold is determined to be 150V. If the battery temperature is 25°C to 55°C, the corresponding target voltage reset threshold is determined to be 200V.

[0049] Obtain the second battery voltage from the previous time step at the current time step, and determine the target latch voltage based on the first battery voltage from the current time step, the second battery voltage from the previous time step at the current time step, and the target voltage reset threshold.

[0050] The above approach addresses the issue of varying battery polarization at different temperatures, requiring the Battery Management System (BMS) to differentiate voltage return thresholds based on temperature ranges. At high temperatures, the internal chemical reaction rate accelerates, ion diffusion is easier, but electrochemical polarization may increase; therefore, a higher voltage return threshold is needed to prevent overcharging. At room temperature, the battery's voltage behavior is relatively stable, allowing for a moderate voltage return threshold. However, at low temperatures, the chemical reaction rate slows, ion diffusion is difficult, and ohmic and concentration polarization are greater; therefore, a lower voltage return threshold is needed to ensure normal battery charging and prevent overcharging. By real-time monitoring of the battery temperature and dynamically adjusting the voltage return threshold based on temperature sensor readings, the system can effectively handle voltage variations under different environmental conditions, thereby extending battery life and improving battery safety and reliability.

[0051] In some embodiments, the difference between the first battery voltage and the second battery voltage can be determined, and the difference can be compared with a target voltage reset threshold. A target latching voltage is then determined based on the comparison result. Specifically, step 1012, which determines the target latching voltage based on the first battery voltage, the second battery voltage, and the target voltage reset threshold, includes: Step 10121: Subtract the voltage of the second battery from the voltage of the first battery to obtain the voltage difference value.

[0052] Step 10122: In response to the voltage difference being greater than the target voltage reset threshold, the target latching voltage is determined to be the first battery voltage. Alternatively, Step 10123: In response to the voltage difference being less than or equal to the target voltage reset threshold, the target latch voltage is determined to be the second battery voltage.

[0053] In practice, the difference between the second battery voltage at the previous moment and the first battery voltage at the current moment is calculated, that is, the difference between the second battery voltage and the first battery voltage is calculated, and the difference is the voltage difference.

[0054] The voltage difference is compared with the target voltage return threshold. If the voltage difference is greater than the target voltage return threshold, that is, the voltage difference between the current battery voltage and the previous battery voltage is greater than the target voltage return threshold, it indicates that the battery voltage has changed significantly. The target latch voltage is then determined to be the first battery voltage, that is, the target latch voltage is the battery voltage at the current moment.

[0055] If the voltage difference is less than or equal to the target voltage reset threshold, that is, the voltage difference between the current battery voltage and the previous battery voltage is less than or equal to the target voltage reset threshold, it indicates that the battery voltage change is small, and the target latch voltage is determined to be the second battery voltage, that is, the target latch voltage is the battery voltage of the previous time.

[0056] The following describes the process of determining the target latch voltage using parameter symbols, specifically including: The voltage of the second battery at the previous time step is V1, the voltage of the first battery at the current time step is V2, the target voltage reset threshold is V0, and the target latch voltage is V3. The first battery voltage and the second battery voltage are subtracted, and the target latch voltage is determined based on the resulting voltage difference, specifically in the following cases: If V1-V2>V0, it means that the voltage difference between the first battery voltage and the second battery voltage is greater than the target voltage reset threshold. At this time, the target latching voltage V3 is determined to be the first battery voltage V2 at the current moment.

[0057] If V1-V2≤V0, it means that the voltage difference between the first battery voltage and the second battery voltage is less than or equal to the target voltage reset threshold. At this time, the target latching voltage V3 is determined to be the second battery voltage V1 of the previous moment.

[0058] For example, if the current battery temperature of the vehicle is -5 degrees Celsius, the target voltage reset threshold corresponding to the current battery temperature is set to 100V. The second battery voltage at the previous moment is 420V, and the first battery voltage at the current moment is 370V. Therefore, the voltage difference between the first and second battery voltages is determined to be 50V, which is less than the target voltage reset threshold of 100V. Thus, the target latching voltage is determined to be the second battery voltage of 420V from the previous moment.

[0059] Figure 2A schematic diagram of battery voltage changes in this embodiment is shown, as follows: Figure 2 As shown, at time T1, the battery voltage is V1. At time T2, the battery voltage is V2, and the target voltage reset threshold corresponding to the battery temperature at time T2 is V0. Considering time T2 as the current time and time T1 as the previous time, the voltage difference between the current battery voltage and the previous battery voltage is ΔV = V2 - V1. If ΔV < V0, the target latching voltage V3 is determined to be the battery voltage V1 of the previous time, meaning the target latching voltage at time T2 is the battery voltage at time T1.

[0060] Similarly, as Figure 2 As shown, at time T3, the battery voltage is V3. At time T4, the battery voltage is V4, and the target voltage reset threshold corresponding to the battery temperature at time T4 is V0'. Now, considering time T4 as the current moment and time T3 as the previous moment, the voltage difference between the current battery voltage and the previous battery voltage is ΔV' = V4 - V3. If ΔV > V0', the target latching voltage V5 is determined to be the current battery voltage V4; that is, the target latching voltage at time T4 is the battery voltage at time T4.

[0061] The above scheme determines the target latching voltage by comparing the decrease in battery voltage between the current and previous moments. When the battery voltage change is small, the latching voltage remains the same as the voltage before the decrease. When the battery voltage change is large, the latching voltage is the voltage after the decrease. This avoids repeated adjustments to the target requested current due to short-term fluctuations when subsequently using the target latching voltage to determine the target requested current, thus improving charging efficiency.

[0062] In some embodiments, when determining the target steady-state requested current, the charging MAP table can be looked up using the target latch voltage and the current first battery voltage to obtain the corresponding requested current, thereby determining the target steady-state requested current. Specifically, step 102, determining the target steady-state requested current based on the target latch voltage and the first battery voltage, includes: Step 1021: Look up the charging data table according to the target latching voltage to obtain the first requested current; Step 1022: Look up the charging data table based on the first battery voltage to obtain the second requested current; Step 1023: Compare the first requested current with the second requested current to obtain a comparison result, and determine the target steady-state requested current based on the comparison result.

[0063] In practical implementation, a vehicle charging MAP (Magnetic Mapping) is a key tool for optimizing the battery charging process. Based on parameters such as battery temperature and state of charge (SOC), it dynamically determines the maximum allowable charging power or current of the battery under different operating conditions through a two-dimensional lookup table. This table effectively prevents battery damage due to overcharging and overcurrent, while improving charging efficiency and extending battery life. In practical applications, the charging MAP is built through cell-level testing and system-level calibration, and can dynamically adjust the power limit according to battery aging, ensuring the safety and reliability of the charging process. With technological advancements, the charging MAP is continuously optimized to adapt to more complex operating conditions and higher performance requirements.

[0064] The charging MAP table is looked up based on the target latching voltage to obtain the first requested current corresponding to the target latching voltage. The first requested current is the maximum charging current that the battery can theoretically withstand at that voltage.

[0065] The charging MAP table contains the correspondence between latched voltage and requested current. The form of the correspondence may include at least one of the following: relationship table, function relationship, curve relationship, key-value pair relationship, and bar chart relationship.

[0066] The charging MAP table is consulted based on the first battery voltage to obtain the second requested current corresponding to the first battery voltage. The second requested current is dynamically calculated based on the actual state of the vehicle battery, which is closer to the actual charging capacity of the battery at the current moment.

[0067] The charging MAP table contains the correspondence between battery voltage and requested current. The form of the correspondence may include at least one of the following: relationship table, function relationship, curve relationship, key-value pair relationship, and bar chart relationship.

[0068] The obtained first requested current is compared with the second requested current to obtain a comparison result, and the target steady-state requested current is determined based on the comparison result. The comparison result is either the first requested current is greater than or equal to the second requested current, or the first requested current is less than the second requested current.

[0069] Specifically, determining the target steady-state requested current based on the comparison result includes: Step 10A: In response to the comparison result that the first requested current is greater than or equal to the second requested current, the target steady-state requested current is determined to be the second requested current.

[0070] In specific implementation, if the comparison result is determined to be that the first requested current is greater than or equal to the second requested current, it means that the requested current determined according to the target latching voltage is greater than or equal to the requested current determined according to the first battery voltage at the current moment. In order to prevent the instantaneous pulse to the upper limit voltage, resulting in insufficient charging capacity, the requested current determined according to the first battery voltage at the current moment, i.e., the second requested current, is adopted as the target steady-state requested current.

[0071] The following describes the process of determining the target steady-state requested current using parameter symbols, specifically including: The first requested current, I1, is obtained by looking up the charging data table based on the target latching voltage. The second requested current, I2, is obtained by looking up the charging data table based on the first battery voltage. The first requested current and the second requested current are compared. If the first requested current is greater than or equal to the second requested current (i.e., I1 > I2), then the target steady-state requested current I3 is determined to be the second requested current I2.

[0072] According to the above scheme, when the comparison result shows that the first requested current is greater than or equal to the second requested current, it indicates that the first requested current determined by the target latching voltage is too large. Charging according to the first requested current determined by the latching voltage exceeds the safe range that the vehicle battery can withstand under the current actual conditions, which may lead to battery overcharging, excessive voltage, or other safety issues. Selecting the second requested current determined based on the current battery voltage as the target steady-state requested current, i.e., charging using the second requested current, better matches the actual charging needs of the battery under the current voltage, ensuring the safety and reliability of the charging process.

[0073] or, Step 10B: In response to the comparison result that the first requested current is less than the second requested current, the second requested current and the first requested current are subtracted to obtain a current difference value, and the target steady-state requested current is determined based on the current difference value.

[0074] In practice, if the comparison result indicates that the first requested current is less than the second requested current, this means that the requested current determined based on the target latch voltage is less than the requested current determined based on the current battery voltage. In this case, the difference between the first requested current and the second requested current is calculated to obtain the current difference value.

[0075] The current difference is compared with a preset current threshold to obtain a current comparison result, and the target steady-state requested current is determined based on the current comparison result. Specifically, the current comparison result is either the current difference is greater than the preset current threshold, or the current difference is less than or equal to the preset current threshold.

[0076] Specifically, the process of determining the target steady-state requested current based on the current comparison result specifically includes: Step a, in response to the current difference being greater than a preset current threshold, determining the target steady-state requested current as the second requested current.

[0077] In specific implementation, if the current difference is greater than the preset current threshold, this indicates that the requested current determined based on the target latch voltage is less than the requested current determined based on the first battery voltage at the current moment, and the gap between the two requested currents is relatively large. At this time, select the second requested current corresponding to the first battery voltage at the current moment as the target steady-state requested current.

[0078] Next, the process of determining the target steady-state requested current will be described in the form of parameter symbols, specifically including: Search the charging data table according to the target latch voltage to obtain the first requested current as I1. Search the charging data table according to the first battery voltage to obtain the second requested current as I2. Compare the first requested current with the second requested current. If it is determined that the first requested current is less than the second requested current, that is, I1 < I2, calculate the difference between the second requested current and the first requested current, that is, I2 - I1.

[0079] Obtain the preset current threshold I4, and compare the obtained current difference with the preset current threshold. If the current difference is greater than the preset current threshold at this time, that is, I2 - I1 > I4, determine the target steady-state requested current I3 as the second requested current I2.

[0080] Through the above solution, since the first battery voltage at the current moment is closer to the actual state of the vehicle battery, and the target latch voltage may not accurately reflect the actual demand of the vehicle battery due to the limitations of the preset value. Therefore, when the second requested current determined by the first battery voltage at the current moment is much greater than the first requested current determined by the target latch voltage, select the second requested current determined by the first battery voltage at the current moment as the target steady-state requested current to ensure that the subsequent charging current matches the actual state of the vehicle battery, thereby ensuring the safety and effectiveness of the charging process.

[0081] Or, Step b, in response to the current difference being less than or equal to the preset current threshold, determining the target steady-state requested current as the first requested current.

[0082] In specific implementation, if the current difference is less than or equal to the preset current threshold, this indicates that although the requested current determined based on the target latch voltage is less than the requested current determined based on the first battery voltage at the current moment, the gap between the two requested currents is relatively small. At this time, select the first requested current corresponding to the target latch voltage as the target steady-state requested current.

[0083] The determination process of the target steady-state requested current is described in the form of parameter symbols as follows, specifically including: Search the charging data table according to the target latch voltage to obtain the first requested current as I1. Search the charging data table according to the first battery voltage to obtain the second requested current as I2. Compare the first requested current with the second requested current. If it is determined that the first requested current is less than the second requested current, that is, I1 < I2, calculate the difference between the second requested current and the first requested current, that is, I2 - I1.

[0084] Obtain the preset current threshold I4, and compare the obtained current difference with the preset current threshold. If the current difference is less than or equal to the preset current threshold at this time, that is, I2 - I1 ≤ I4, determine the target steady-state requested current I3 as the first requested current I1.

[0085] The determination process of the target steady-state requested current is described with a specific example as follows, specifically including: Search the charging data table according to the target latch voltage to obtain the first requested current I1 as 100 A. Search the charging data table according to the first battery voltage to obtain the second requested current I2 as 115 A. Compare the first requested current with the second requested current. At this time, the first requested current is less than the second requested current, that is, I1 < I2.

[0086] Obtain the preset current threshold I4 as 10 A, and compare the obtained current difference with the preset current threshold. At this time, the current difference is less than or equal to the preset current threshold, that is, I2 - I1 < I4, determine the target steady-state requested current I3 as the first requested current I1, which is 100 A.

[0087] Through the above solution, since the target latch voltage is determined based on the current battery temperature and battery voltage through the foregoing steps, it has high reliability and stability. Therefore, although the first requested current determined according to the first battery voltage at the current moment is higher than the second requested current determined according to the target latch voltage, the gap between the two is not large. Taking the second requested current determined by the target latch voltage as the target steady-state requested current and selecting the first requested current determined by the target latch voltage can ensure that the charging process is safer and more stable, and at the same time avoid potential risks caused by current fluctuations.

[0088] In some embodiments, a target steady-state requested current is determined based on battery temperature and battery voltage during vehicle charging. However, during vehicle charging, it's not just the vehicle battery that operates; other accessories (such as DC-DC converters, air conditioning compressors, PTC heaters, etc.) also consume electrical energy. These other accessories consume current when operating, and if this current is not considered, the current provided by the charging station may be insufficient to meet the vehicle's total demand, leading to unstable charging or accessory malfunction. Therefore, when determining the target requested current during charging, the operating status of other vehicle accessories can be assessed first to determine whether the current required for these accessories to operate needs to be increased beyond the target steady-state requested current. That is, step 102, determining the target requested current based on the target steady-state requested current, includes: Step 102A: Obtain the operating status of vehicle accessories in the vehicle, wherein the vehicle accessories refer to components other than the equipment required for the basic operation of the vehicle; Step 102B: Determine the target requested current based on the operating state and the target steady-state requested current.

[0089] In practice, during daily vehicle use, in addition to the primary function of battery charging, other accessories in the vehicle (such as DC-DC converters, air conditioning compressors, PTC heaters, headlights, multimedia systems, and onboard computers) also consume a certain amount of current when operating. Although the current consumption of these accessories is relatively small, if their current requirements are not considered during the charging process, the current provided by the charging station may not be sufficient to meet the vehicle's total needs.

[0090] For example, when a vehicle is charging and the air conditioning or multimedia system is simultaneously turned on, the current consumption of these accessories will be added to the battery charging current, causing the actual output current of the charging pile to exceed its rated value, thus leading to instability in the charging process. This instability may manifest as slower charging speed, charging interruption, or even charging pile overload protection. Furthermore, if the current provided by the charging pile is insufficient, it may also cause vehicle accessories to malfunction, such as dimming headlights, poor air conditioning cooling, or frequent crashes of the multimedia system.

[0091] Therefore, the operational status of vehicle accessories is first obtained. Vehicle accessories refer to components other than those required for basic vehicle operation, such as the engine, chassis, and tires. These vehicle accessories enhance vehicle functionality, improve the driving experience, and increase passenger comfort.

[0092] In this embodiment, the vehicle accessories are mainly divided into electrical system accessories, comfort and convenience accessories, and other accessories. The electrical system accessories include DC-DC converters and PTC heaters, etc. The comfort and convenience accessories include air conditioning compressors, headlights, multimedia systems, and on-board computers, etc. The other accessories include seat heating / ventilation components, reversing radar / camera, and power tailgate, etc.

[0093] The DC-DC converter converts the vehicle's high-voltage DC power to low-voltage DC power, providing a stable power supply for the vehicle's low-voltage electrical systems, such as the battery and electronic control unit. The PTC heater is a positive temperature coefficient thermistor heater used to heat the vehicle interior in low-temperature environments, ensuring a comfortable cabin temperature. The air conditioning compressor is the core component of the automotive air conditioning system, compressing refrigerant to cool or heat the air inside the vehicle, providing a comfortable environment for passengers. Lights, including headlights, taillights, fog lights, and turn signals, provide illumination and signal indication at night or in low visibility conditions, ensuring driving safety. The multimedia system integrates audio and video playback, navigation, and Bluetooth connectivity, providing entertainment and information interaction services for passengers. The onboard computer controls and manages various electronic systems of the vehicle, such as the engine control unit (ECU) and body control module (BCM), enabling intelligent vehicle management and fault diagnosis. Seat heating / ventilation components provide seat heating and ventilation functions, enhancing passenger comfort. Reversing radar / camera assists the driver in operating the vehicle more safely and conveniently when reversing. The power tailgate allows passengers to open and close the tailgate without using their hands, improving convenience.

[0094] The target requested current is determined based on the operating status of the vehicle accessories and the target steady-state requested current, specifically including: Step 102B1: In response to the operating state being a non-operating state, the target steady-state requested current is used as the target requested current; or, Step 102B2: In response to the operating state being in working state, obtain the compensation accessory current, and sum the target steady-state requested current with the compensation accessory current to obtain the target requested current.

[0095] In practice, if the vehicle accessories are in a non-working state, it means that only the vehicle battery is working. Therefore, when determining the target requested current during charging, the target steady-state requested current can be used as the target requested current.

[0096] If the vehicle accessories are in an active state, the vehicle's Battery Management System (BMS) typically monitors the current consumption of the vehicle accessories in real time and dynamically adjusts the output current of the charging station according to the total current demand to ensure the stability of the charging process and the normal operation of the accessories, as detailed below: The compensation accessory current is obtained, where the compensation accessory current is the current value required for the vehicle accessories to operate. The determined target steady-state requested current is added to the obtained compensation accessory current to obtain the target requested current. In other words, the total requested current sent by the vehicle to the charging station includes the target steady-state requested current and the compensation accessory current.

[0097] The following section illustrates the process of determining the target steady-state requested current using a specific example, including: If the target steady-state requested current is determined to be 100A and the compensation accessory current is obtained to be 20A, then the target steady-state requested current and the compensation accessory current are added together to obtain the target requested current as 120A.

[0098] The above scheme ensures that the target requested current sent to the charging pile includes not only the target steady-state requested current of the vehicle battery, but also the compensation accessory current corresponding to other vehicle accessories. This ensures that the total current provided by the charging pile can meet the dual needs of vehicle battery charging and accessory operation, thereby guaranteeing the stability and safety of the charging process.

[0099] It should be noted that the method of this disclosure embodiment can be executed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method of this disclosure embodiment, and the multiple devices will interact with each other to complete the method described.

[0100] It should be noted that the above description describes some embodiments of this disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0101] Based on the same inventive concept, corresponding to any of the above embodiments, this disclosure also provides a vehicle charging control device.

[0102] refer to Figure 3 , Figure 3The vehicle charging control device of the embodiment includes: The latch voltage determination module 201 is configured to determine that the vehicle is connected to the charging pile, obtain the current battery temperature and the first battery voltage at the current moment, and determine the target latch voltage based on the current battery temperature. The request current determination module 202 is configured to determine a target steady-state request current based on the target latching voltage and the first battery voltage, determine a target request current based on the target steady-state request current, and send the target request current to the charging pile.

[0103] In some embodiments, the latch voltage determination module 201 specifically includes: The target voltage reset threshold determination unit is configured to determine a target voltage reset threshold corresponding to the current battery temperature based on the current battery temperature. The target latch voltage determination unit is configured to acquire the second battery voltage of the previous time step at the current time step, and determine the target latch voltage based on the first battery voltage, the second battery voltage and the target voltage reset threshold.

[0104] In some embodiments, the target latch voltage determination unit specifically includes: The voltage difference determination subunit is configured to subtract the voltage of the second battery from the voltage of the first battery to obtain the voltage difference. A first target latch voltage determination subunit is configured to determine the target latch voltage as the first battery voltage in response to the voltage difference being greater than the target voltage reset threshold; or... The second target latch voltage determination subunit is configured to determine the target latch voltage as the second battery voltage in response to the voltage difference being less than or equal to the target voltage reset threshold.

[0105] In some embodiments, the requested current determination module 202 specifically includes: The first requested current determination unit is configured to look up the charging data table based on the target latching voltage to obtain the first requested current; The second request current determination unit is configured to look up the charging data table based on the first battery voltage to obtain the second request current; The target steady-state request current determination unit is configured to compare the first request current with the second request current to obtain a comparison result, and determine the target steady-state request current based on the comparison result.

[0106] In some embodiments, the target steady-state requested current determination unit specifically includes: A first target steady-state requested current determination subunit is configured to determine the target steady-state requested current as the second requested current in response to a comparison result indicating that the first requested current is greater than or equal to the second requested current; or... The second target steady-state request current determination subunit is configured to, in response to the comparison result that the first request current is less than the second request current, perform subtraction on the second request current and the first request current to obtain a current difference value, and determine the target steady-state request current based on the current difference value.

[0107] In some embodiments, the second target steady-state request current determining subunit is specifically configured as follows: In response to the current difference being greater than a preset current threshold, the target steady-state requested current is determined to be the second requested current; or, In response to the current difference being less than or equal to the preset current threshold, the target steady-state requested current is determined to be the first requested current.

[0108] In some embodiments, the requested current determination module 202 specifically includes: The compensation accessory current determination unit is configured to acquire the compensation accessory current; The target requested current determination unit is configured to sum the target steady-state requested current with the compensation attachment current to obtain the target requested current.

[0109] For ease of description, the above apparatus is described in terms of its functions, divided into various modules. Of course, in implementing this disclosure, the functions of each module can be implemented in one or more software and / or hardware.

[0110] The apparatus of the above embodiments is used to implement the corresponding vehicle charging control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0111] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this disclosure also provides an electronic device, including 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 vehicle charging control method described in any of the above embodiments.

[0112] Figure 4This embodiment illustrates a more specific hardware structure of an electronic device. The device may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0113] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0114] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0115] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0116] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0117] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0118] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0119] The electronic devices described above are used to implement the corresponding vehicle charging control methods in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0120] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this disclosure also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the vehicle charging control method as described in any of the above embodiments.

[0121] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0122] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the vehicle charging control method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0123] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a vehicle, including the vehicle charging control device in the above embodiments, the electronic device in the above embodiments, and the computer-readable storage medium in the above embodiments, wherein the vehicle device implements the vehicle charging control method described in any of the above embodiments.

[0124] The vehicles described in the above embodiments are used to implement the vehicle charging control method described in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0125] It is understood that before using the technical solutions of the various embodiments in this disclosure, users will be informed of the type, scope of use, and usage scenarios of the personal information involved in an appropriate manner, and user authorization will be obtained.

[0126] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose, based on the prompt message, whether to provide personal information to the software or hardware such as electronic devices, applications, servers, or storage media performing the operations of this disclosed technical solution.

[0127] As an optional but not limited implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0128] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0129] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this disclosure as described above, which are not provided in detail for the sake of brevity.

[0130] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this disclosure, the provided drawings may or may not show well-known power / ground connections to integrated circuit (IC) chips and other components. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this disclosure, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this disclosure will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that the embodiments of this disclosure can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0131] Although this disclosure has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0132] This disclosure is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A vehicle charging control method, characterized in that, include: Determine if the vehicle is connected to the charging station, obtain the current battery temperature and the first battery voltage at the current moment, and determine the target latching voltage based on the current battery temperature; The target steady-state request current is determined based on the target latching voltage and the first battery voltage, and the target request current is then sent to the charging pile.

2. The method according to claim 1, characterized in that, Determining the target latching voltage based on the current battery temperature includes: Based on the current battery temperature, determine the target voltage reset threshold corresponding to the current battery temperature; Obtain the second battery voltage from the previous time step at the current time step, and determine the target latch voltage based on the first battery voltage, the second battery voltage, and the target voltage reset threshold.

3. The method according to claim 2, characterized in that, The step of determining the target latching voltage based on the first battery voltage, the second battery voltage, and the target voltage reset threshold includes: The voltage difference between the second battery voltage and the first battery voltage is calculated to obtain the voltage difference value; In response to the voltage difference being greater than the target voltage reset threshold, the target latch voltage is determined to be the first battery voltage; or... In response to the voltage difference being less than or equal to the target voltage reset threshold, the target latch voltage is determined to be the second battery voltage.

4. The method according to claim 1, characterized in that, Determining the target steady-state requested current based on the target latch voltage and the first battery voltage includes: The first requested current is obtained by looking up the charging data table based on the target latching voltage; The second requested current is obtained by looking up the charging data table based on the first battery voltage. The first requested current is compared with the second requested current to obtain a comparison result, and the target steady-state requested current is determined based on the comparison result.

5. The method according to claim 4, characterized in that, Determining the target steady-state requested current based on the comparison result includes: In response to the comparison result indicating that the first requested current is greater than or equal to the second requested current, the target steady-state requested current is determined to be the second requested current; or, In response to the comparison result that the first requested current is less than the second requested current, the difference between the second requested current and the first requested current is calculated to obtain the current difference value, and the target steady-state requested current is determined based on the current difference value.

6. The method according to claim 5, characterized in that, Determining the target steady-state requested current based on the current difference includes: In response to the current difference being greater than a preset current threshold, the target steady-state requested current is determined to be the second requested current; or, In response to the current difference being less than or equal to the preset current threshold, the target steady-state requested current is determined to be the first requested current.

7. The method according to claim 1, characterized in that, Determining the target requested current based on the target steady-state requested current includes: The operating status of vehicle accessories in the vehicle is obtained, wherein the vehicle accessories refer to components other than the equipment required for the basic operation of the vehicle; The target requested current is determined based on the operating state and the target steady-state requested current.

8. The method according to claim 7, characterized in that, Determining the target requested current based on the operating state and the target steady-state requested current includes: In response to the operating state being a non-operating state, the target steady-state requested current is used as the target requested current; or... In response to the operating state being in working state, the compensation accessory current is obtained, and the target steady-state requested current is summed with the compensation accessory current to obtain the target requested current.

9. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, The vehicle includes the electronic equipment as described in claim 9.

Images