Vehicle charging method, device and equipment and storage medium
By monitoring the battery voltage through a regional controller and determining the target replenishment voltage using a preset lookup table, the problem of cumbersome procedures and high failure rate caused by existing battery monitoring sensors is solved, thus achieving intelligent replenishment and improved reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-03-13
AI Technical Summary
Existing vehicle charging methods rely on specialized battery monitoring sensors to monitor battery level, resulting in cumbersome procedures, high failure rates, and high costs, making it difficult to guarantee the reliability of charging.
The current battery voltage and vehicle mode are directly determined by the vehicle's area controller. The target charging voltage is determined using a preset lookup table. When the target charging voltage is less than the target threshold, the power battery is activated to charge the battery, reducing network communication.
It improves the reliability of battery charging, reduces costs, minimizes network communication, achieves intelligent charging, and ensures that vehicles can still start normally after being parked for a long time.
Smart Images
Figure CN121663751A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle charging technology, specifically to vehicle charging methods, devices, equipment, and storage media. Background Technology
[0002] With the significant increase in the market share of electric vehicles, power batteries can replenish low-voltage batteries without starting the vehicle, maintaining the low-voltage batteries in a healthy state, preventing depletion, and ensuring normal starting after prolonged parking. Currently, common replenishment methods rely on dedicated battery monitoring sensors to monitor battery charge levels and determine whether replenishment is necessary. However, because these sensors only collect charge data and require network communication to transmit signals to a master node for logical judgment, the process is cumbersome, has a high failure rate, and results in poor reliability for replenishment. Summary of the Invention
[0003] A method, apparatus, device, and storage medium for vehicle power replenishment are provided to improve the reliability of vehicle power replenishment.
[0004] Firstly, a vehicle charging method is provided, wherein the vehicle includes a storage battery, a power battery, and a regional controller; the vehicle charging method includes the following steps: The current battery voltage and vehicle mode are determined by the area controller; Determine the target threshold voltage based on the current pattern; The target replenishment voltage is determined based on the current voltage, the first preset lookup table, and the second preset lookup table; wherein, the first preset lookup table is a battery voltage and power lookup table; and the second preset lookup table is a power and replenishment voltage lookup table. If the target charging voltage is lower than the target threshold voltage, the power battery is activated to charge the storage battery.
[0005] In some embodiments, the current mode includes a sleep mode and a running mode; determining the target threshold voltage based on the current mode includes: When the current mode is sleep mode, the target threshold voltage is determined to be the first preset voltage; When the current mode is the operating mode, the target threshold voltage is determined to be the second preset voltage.
[0006] In some embodiments, the first preset voltage is greater than the second preset voltage.
[0007] In some embodiments, determining the target replenishment voltage based on the current voltage, a first preset lookup table, and a second preset lookup table includes: The current battery charge is determined based on the current voltage and the first preset lookup table; The target replenishment voltage is determined based on the current power level and the second preset lookup table.
[0008] In some embodiments, after determining the target compensation voltage, the method further includes: The charging duration is determined based on the target charging voltage and the third preset lookup table; the third preset lookup table is a lookup table for charging and charging durations.
[0009] In some embodiments, the area controller includes a voltage acquisition harness and a voltage acquisition module; the voltage acquisition module is electrically connected to the battery via the voltage acquisition harness; determining the current voltage of the battery through the area controller includes: The battery voltage is acquired through a voltage acquisition module; Determine the first voltage drop and the second voltage drop; wherein, the first voltage drop is the voltage drop generated when the voltage acquisition harness and voltage acquisition module acquire the battery voltage; the second voltage drop is the voltage drop generated by the load; The current voltage is determined based on the collected voltage, the first voltage drop, and the second voltage drop.
[0010] In some embodiments, the method for determining the first voltage drop and the second voltage drop includes: The first voltage drop is determined based on the current current of the voltage acquisition module, as well as the length, resistance, and contact resistance of the voltage acquisition harness. The second pressure drop is determined based on the current pattern.
[0011] Secondly, a vehicle charging device is also provided, wherein the vehicle includes a storage battery, a power battery, and a zone controller; the vehicle charging device includes: The first determining module is used to determine the current voltage of the battery and the current mode of the vehicle through the area controller; The second determining module is used to determine the target threshold voltage based on the current mode; The third determining module is used to determine the target replenishment voltage based on the current voltage, the first preset lookup table, and the second preset lookup table. The starting module is used to start the power battery to replenish the storage battery when the target replenishment voltage is less than the target threshold voltage.
[0012] Thirdly, an electronic device is also provided, including a memory and a processor, wherein a computer program is stored on the memory, and the computer program, when executed by the processor, implements the method as described in the first aspect.
[0013] Fourthly, a computer-readable storage medium is also provided, on which a computer program is stored, said computer program being loaded by a processor to perform the steps of the method described in the first aspect.
[0014] Beneficial Effects: This application provides a vehicle charging method, apparatus, device, and storage medium. The vehicle charging method includes: determining the current voltage of the battery and the current vehicle mode through a regional controller; determining a target threshold voltage based on the current mode; determining a target charging voltage based on the current voltage, a first preset lookup table, and a second preset lookup table; wherein the first preset lookup table is a battery voltage and capacity lookup table; and the second preset lookup table is a capacity and charging voltage lookup table. When the target charging voltage is less than the target threshold voltage, the power battery is activated to charge the battery. The vehicle charging method provided by this application directly determines the current voltage of the battery and the current vehicle mode through the vehicle's regional controller, then determines the target charging voltage based on the current voltage, the first preset lookup table, and the second preset lookup table, and activates the power battery to charge the battery when the target charging voltage is less than the target threshold voltage. This reduces network communication and improves the reliability of the battery charging function. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a flowchart of a vehicle charging method provided in the embodiments of this application; Figure 2 This is the power replenishment-related control association diagram provided in the embodiments of this application; Figure 3 This is a schematic diagram of the overall process of a vehicle charging method provided in the embodiments of this application; Figure 4 This is a schematic diagram of the principle structure of a vehicle charging device provided in the embodiments of this application. Detailed Implementation
[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0018] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0019] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.
[0020] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values may in practice be based on additional conditions or values beyond those stated.
[0021] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0022] The applicant's research found that, with the significant increase in the market share of electric vehicles, the power battery can replenish the low-voltage battery without starting the vehicle, keeping the low-voltage battery in a healthy state, avoiding depletion, and ensuring that the vehicle can still start normally after being parked for a long time.
[0023] Currently, most methods involve monitoring the battery's charge level using a battery monitoring module to determine if it falls below a set threshold. When the charge level is below the threshold and the vehicle's environmental conditions are suitable, a DC-DC converter (DCDC) is used to convert the high-voltage electricity into low-voltage electricity to charge the battery. However, this method has the following drawbacks: First, specialized battery monitoring sensors are required for power monitoring, which is costly.
[0024] Secondly, the battery monitoring sensor only has the function of collecting power. It needs to transmit the signal to the master node for logical judgment through Local Interconnect Network (LIN) / Controller Area Network (CAN) communication, which is cumbersome and has a high failure rate.
[0025] Third, when performing wake-up power monitoring, a large number of electronic control units (ECUs) need to be woken up, resulting in high power consumption.
[0026] In view of this, embodiments of this application provide a vehicle charging method, apparatus, device, and storage medium. Embodiments of this application directly determine the current voltage of the battery and the current mode of the vehicle through the vehicle's area controller, and then determine the target charging voltage according to the current voltage, a first preset lookup table, and a second preset lookup table. When the target charging voltage is less than the target threshold voltage, the power battery is activated to charge the battery, which can reduce network communication and improve the reliability of the battery charging function.
[0027] Figure 1 This is a flowchart illustrating a vehicle battery charging method provided in an embodiment of this application. This method is applicable to vehicle control systems, enabling reliable battery charging of vehicles. The method can be executed by a vehicle charging device, which can be implemented in software and / or hardware and can be configured in the area controller of the vehicle control system. Please refer to... Figure 1 The method includes the following steps: Step 110: Determine the current battery voltage and the vehicle's current mode via the area controller.
[0028] The vehicle includes a zone controller, which directly determines the current voltage of the battery by utilizing the vehicle's own zone controller. Compared with related technologies that use dedicated battery monitoring sensors, this effectively reduces the cost of the entire vehicle controller.
[0029] The vehicle's current mode can be obtained directly from the area controller.
[0030] In some embodiments, the area controller includes a voltage acquisition harness and a voltage acquisition module; the voltage acquisition module is electrically connected to a battery via the voltage acquisition harness; determining the current voltage of the battery via the area controller includes: acquiring the battery's acquisition voltage via the voltage acquisition module; determining a first voltage drop and a second voltage drop; wherein the first voltage drop is the voltage drop generated when the voltage acquisition harness and the voltage acquisition module acquire the battery voltage; the second voltage drop is the voltage drop generated by the load; and determining the current voltage based on the acquisition voltage, the first voltage drop, and the second voltage drop.
[0031] The voltage acquisition harness connects directly from the fuse box to the voltage acquisition module of the area controller. The voltage acquisition module is electrically connected to the battery via the voltage acquisition harness to acquire the battery's voltage. .
[0032] Specifically, the process of determining the current battery voltage through the area controller is as follows: First, the battery voltage is acquired through the voltage acquisition module. Then, determine the first pressure drop. Second pressure drop Finally, the collected voltage will be... First pressure drop Second pressure drop The sums are used to obtain the current voltage U. For example, U= + + ; In some embodiments, the method for determining a first voltage drop and a second voltage drop includes: determining a first voltage drop based on the current current of the voltage acquisition module, and the length, resistance, and contact resistance of the voltage acquisition harness; and determining a second voltage drop based on a current mode.
[0033] Among them, the contact resistance refers to the contact resistance between the wire harness terminal and the wire harness riveting, and the contact resistance between the wire harness plugs.
[0034] Specifically, the process of determining the first voltage drop is as follows: Obtain the wire length, wire diameter, and contact resistance of the voltage acquisition harness; determine the wire resistance of the voltage acquisition harness based on the wire diameter; determine the current of the voltage acquisition module based on the resistance of the voltage acquisition module and the acquired voltage; and determine the first voltage drop based on the current of the voltage acquisition module, as well as the wire length, wire resistance, and contact resistance of the voltage acquisition harness. Among them, the first pressure drop The calculation formula is: ; in, Indicates line length; Indicates linear resistivity; Indicates line resistance; Indicates contact resistance; This indicates the current current of the voltage acquisition module.
[0035] Specifically, the process of determining the second voltage drop is as follows: The load pull-down voltage, i.e., the second voltage drop, is obtained based on the vehicle's current mode. For example, when the vehicle's current mode is sleep mode, a voltage drop value (e.g., 0.2V) is initially measured and written to the software. When the vehicle's current mode is running mode, a voltage drop value (e.g., 0.6V) is initially measured and written to the software. Thus, the vehicle can find the corresponding voltage drop based on the corresponding mode, and this voltage drop value can be updated via Over-the-Air (OTA) as subsequent measurements become more precise.
[0036] Step 120: Determine the target threshold voltage based on the current mode.
[0037] The target threshold voltage is used to determine whether the battery needs to be recharged.
[0038] Specifically, different target threshold voltages are set according to different vehicle modes to implement corresponding charging strategies for different vehicle modes, thereby improving the reliability and effectiveness of battery charging and achieving intelligent charging.
[0039] In some embodiments, the current mode includes a sleep mode and an operating mode; determining the target threshold voltage according to the current mode includes: when the current mode is a sleep mode, determining the target threshold voltage as a first preset voltage; when the current mode is an operating mode, determining the target threshold voltage as a second preset voltage.
[0040] The vehicle charging process occurs in two user modes. Specifically, when the vehicle is in sleep mode, the area controller periodically wakes up to determine the current battery voltage and sets a target threshold voltage as a first preset voltage based on the sleep mode. This allows for further judgment on whether battery charging in sleep mode is necessary. When the vehicle is in operating mode, the area controller determines the current battery voltage in real time and sets a target threshold voltage as a second preset voltage based on the operating mode. This allows for further judgment on whether battery charging in operating mode is necessary. This allows for different target threshold voltages to be activated for different vehicle modes, enabling corresponding charging strategies for different vehicle modes, thereby improving the reliability and effectiveness of battery charging and achieving intelligent charging.
[0041] In some embodiments, the first preset voltage is greater than the second preset voltage.
[0042] For example, the first preset voltage is less than 12.3V, which means it is ready to be charged; the second preset voltage is 11.7V, which means it is ready to be charged.
[0043] Step 130: Determine the target replenishment voltage based on the current voltage, the first preset lookup table, and the second preset lookup table.
[0044] The first preset lookup table is a battery voltage and power lookup table; the second preset lookup table is a power and recharge voltage lookup table.
[0045] For example, the battery voltage and power lookup table is a battery power & voltage memory address pointer (MAP) table, as shown in Table 1.
[0046] Table 1: Battery Voltage and Capacity Lookup Table
[0047] It should be noted that there is a linear relationship between voltage and electrical quantity, and this table (i.e., Table 1) shows integer node parameters.
[0048] The battery capacity and replenishment voltage lookup table is a MAP table of battery capacity and replenishment voltage, as shown in Table 2.
[0049] Table 2: Power Consumption and Recharge Voltage Lookup Table
[0050] In some embodiments, determining the target replenishment voltage based on the current voltage, a first preset lookup table, and a second preset lookup table includes: determining the current battery charge based on the current voltage and the first preset lookup table; and determining the target replenishment voltage based on the current battery charge and the second preset lookup table.
[0051] Specifically, the current battery voltage and vehicle mode are determined via the area controller. Then, a target threshold voltage is determined based on the current mode. Based on the current voltage, a first preset lookup table is consulted to determine the current battery charge. Next, a second preset lookup table is consulted based on the current charge to determine the target charging voltage. This allows for further determination of whether the battery needs additional charging based on the target charging voltage and the target threshold voltage.
[0052] Step 140: If the target charging voltage is less than the target threshold voltage, start the power battery to charge the storage battery.
[0053] The power battery includes a DC-DC converter. This DC-DC converter does not operate in sleep mode, nor does it operate under certain special conditions during operation (e.g., when the vehicle is disabled but not started).
[0054] In scenarios where the vehicle is powered solely by the low-voltage battery and the DC-DC converter is not working, to prevent the low-voltage battery from running out of power, when it is determined that the power battery needs to be activated to recharge the battery, the vehicle's DC-DC converter will activate to convert high-voltage electricity into low-voltage electricity to recharge the low-voltage battery, and will then shut down the DC-DC converter after the recharging is completed.
[0055] The working principle of the vehicle charging method in this application embodiment is as follows: First, the current voltage of the battery and the current mode of the vehicle are determined by the area controller. A target threshold voltage is determined based on the current vehicle mode. Then, a first preset lookup table is consulted based on the current voltage to determine the current battery charge. A second preset lookup table is consulted based on the current battery charge to determine the target charging voltage. Finally, the target charging voltage is compared with the corresponding target threshold voltage. If the target charging voltage is lower than the target threshold voltage, it is determined that the battery needs charging, and the power battery is started to charge the battery. This enables battery charging under different modes and voltages, providing reliable battery charging, avoiding battery depletion, and ensuring that the vehicle can still start normally after long-term parking.
[0056] It is understood that this application embodiment determines the current battery voltage and the vehicle's current mode directly through the vehicle's area controller, then determines the target charging voltage based on the current voltage, a first preset lookup table, and a second preset lookup table, and activates the power battery to charge the battery when the target charging voltage is less than the target threshold voltage. This allows for setting different target threshold voltages based on different vehicle modes, enabling different charging strategies to be adopted for different battery voltages, thus improving the reliability of the battery charging function. Furthermore, compared to related technologies, this application directly determines the battery voltage by reusing the area controller, eliminating the need for a dedicated battery monitoring sensor, reducing costs, minimizing network communication, and improving the reliability of the battery charging function.
[0057] In some embodiments, after determining the target replenishment voltage, the method further includes: determining the replenishment duration based on the target replenishment voltage and a third preset lookup table; wherein the third preset lookup table is a lookup table for replenishment and charging durations.
[0058] For example, the charging and replenishment time lookup table is a MAP table showing the time it takes for the battery to complete a full charge at each power level, as shown in Table 3.
[0059] Table 3: Recharge and Charging Duration Lookup Table
[0060] Figure 2 This is a power replenishment-related control association diagram provided in the embodiments of this application. For example, see [link to relevant documentation]. Figure 2The control process for starting and stopping the battery charging is as follows: First, based on the actual vehicle charging voltage, a MAP table showing the time required for the battery to reach full charge at each charge level under this voltage platform is written into the area controller. Then, when the area controller determines that battery charging is needed, it sends a charging start message to the power battery through the Battery Management System (BMS) to control the power battery discharge and activate the DC-DC converter. Once activated, the DC-DC converter begins charging the battery. Furthermore, the area controller outputs a target charging voltage to the DC-DC converter and queries a third preset lookup table based on this target voltage to determine the charging duration (e.g., querying the time required for full charge based on the battery charge level information at the time charging is triggered). The charging time is calculated from the start of charging and is used as the charging duration. When the charging duration is reached (e.g., the countdown ends), the DC-DC converter is deactivated to stop charging. Thus, by accurately setting the charging duration based on the battery voltage at the time of charging, energy waste is reduced and driving range is improved. Furthermore, by dynamically adjusting the charging voltage and charging time based on the battery charge level, the battery lifespan can be reduced due to float charging and undervoltage, thus extending the battery's lifespan.
[0061] It should be noted that the first, second, and third preset lookup tables can be written into the area controller, replacing the traditional Intelligent Battery Sensor (IBS) function. The area controller can perform MAP or battery updates, updating the MAP via over-the-air (OTA) download to update the vehicle's battery charging function. For example, if the battery is replaced or a more accurate MAP is available, the new MAP can be written into the area controller by updating the area controller's software.
[0062] Figure 3 This is a schematic diagram illustrating the overall process of a vehicle charging method provided in this application embodiment. For an example, please refer to [link / reference needed]. Figure 3 The overall implementation process of this vehicle charging method is as follows: First, the voltage of the positive terminal of the battery is acquired through the voltage acquisition module of the area controller. A first voltage drop and a second voltage drop are determined, and the current battery voltage U is determined based on the acquired voltage, the first voltage drop, and the sum of the second voltage drop. Then, the current vehicle mode is determined by the area controller, and a target threshold voltage is determined based on the current mode. For example, if the current mode is sleep mode, the target threshold voltage is determined to be a first preset voltage A; if the current mode is active mode, the target threshold voltage is determined to be a second preset voltage B. Next, the current battery charge is determined based on the current battery voltage U and a first preset lookup table, and the target charging voltage is determined based on the current charge and a second preset lookup table.
[0063] When the current mode is hibernation mode, the target replenishment voltage is compared with the first preset voltage A. If the target replenishment voltage is less than or equal to the first preset voltage A, it is determined that the battery needs replenishment. The DCDC is then activated via the area controller to begin replenishment, and the replenishment duration (or replenishment time) is set according to the third preset lookup table. When replenishment begins, the area controller starts timing, and after the replenishment time ends, it notifies the DCDC to shut down.
[0064] When the current mode is operating mode, the target replenishment voltage is compared with the second preset voltage B. If the target replenishment voltage is less than or equal to the second preset voltage B, it is determined that the battery needs replenishment. The DC-DC converter is then activated via the area controller to begin replenishment, and the replenishment duration (or replenishment time) is set according to the third preset lookup table. When replenishment begins, the area controller starts timing and notifies the DC-DC converter to shut down after the replenishment time is completed.
[0065] In summary, the embodiments of this application can achieve the following: monitoring battery voltage through a regional controller reduces costs. Intelligent battery charging is achieved by adjusting the automatic charging voltage and timing, reducing network communication and improving the reliability of the charging function. During periodic wake-up detection, the network does not need to be woken up; only the master node itself is activated, reducing power consumption. The battery charging MAP is written to the regional controller, replacing the traditional IBS function. The regional controller can perform MAP updates or battery updates, updating the map via OTA to update the battery charging function on the entire vehicle. It should be noted that the regional controller in the embodiments of this application can also be replaced by modules such as a body controller, gateway, or central domain controller that have network communication capabilities and can add functions such as timing, battery voltage detection, and sleep / wake-up.
[0066] Figure 4 This is a schematic diagram illustrating the principle structure of a vehicle charging device provided in an embodiment of this application. This application also provides a vehicle charging device, see below. Figure 4 The vehicle charging device 100 includes: a first determining module 101, used to determine the current voltage of the battery and the current mode of the vehicle through a regional controller; a second determining module 102, used to determine a target threshold voltage based on the current mode; a third determining module 103, used to determine a target charging voltage based on the current voltage, a first preset lookup table, and a second preset lookup table; and a starting module 104, used to start the power battery to charge the battery when the target charging voltage is less than the target threshold voltage.
[0067] The technical solution of this application provides a vehicle charging device. This application directly determines the current voltage of the battery and the current mode of the vehicle through the vehicle's area controller, and then determines the target charging voltage according to the current voltage, a first preset lookup table and a second preset lookup table. When the target charging voltage is less than the target threshold voltage, the power battery is activated to charge the battery. This can reduce network communication and improve the reliability of the battery charging function.
[0068] In some embodiments, the current mode includes a hibernation mode and a running mode; the second determining module 102 is further configured to: When the current mode is sleep mode, the target threshold voltage is determined to be the first preset voltage; When the current mode is the operating mode, the target threshold voltage is determined to be the second preset voltage.
[0069] In some embodiments, the first preset voltage is greater than the second preset voltage.
[0070] In some embodiments, the third determining module 103 is further configured to: The current battery charge is determined based on the current voltage and the first preset lookup table; The target replenishment voltage is determined based on the current power level and the second preset lookup table.
[0071] In some embodiments, the vehicle charging device 100 further includes a fourth determining module, which is used to determine the charging duration based on the target charging voltage and a third preset lookup table; wherein the third preset lookup table is a lookup table of charging and charging durations.
[0072] In some embodiments, the area controller includes a voltage acquisition harness and a voltage acquisition module; the voltage acquisition module is electrically connected to a battery via the voltage acquisition harness; the first determining module 101 is further configured to: The battery voltage is acquired through a voltage acquisition module; Determine the first voltage drop and the second voltage drop; wherein, the first voltage drop is the voltage drop generated when the voltage acquisition harness and voltage acquisition module acquire the battery voltage; the second voltage drop is the voltage drop generated by the load; The current voltage is determined based on the collected voltage, the first voltage drop, and the second voltage drop.
[0073] In some embodiments, the first determining module 101 is further configured to: The first voltage drop is determined based on the current current of the voltage acquisition module, as well as the length, resistance, and contact resistance of the voltage acquisition harness. The second pressure drop is determined based on the current pattern.
[0074] This embodiment also provides an electronic device, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, it implements the method of any of the above embodiments.
[0075] This embodiment also provides a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps of any of the methods in the above embodiments.
[0076] In the embodiments of this application, the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.
[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0078] The above provides a detailed description of a vehicle charging method, apparatus, device, and storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A method for charging a vehicle, characterized in that, The vehicle includes a storage battery, a power battery, and a zone controller; the method includes the following steps: The current voltage of the battery and the current mode of the vehicle are determined by the area controller; Determine the target threshold voltage based on the current mode; The target replenishment voltage is determined based on the current voltage, a first preset lookup table, and a second preset lookup table; wherein, the first preset lookup table is the battery voltage and capacity lookup table; and the second preset lookup table is a capacity and replenishment voltage lookup table. If the target charging voltage is less than the target threshold voltage, the power battery is activated to charge the storage battery.
2. The vehicle charging method according to claim 1, characterized in that, The current mode includes a sleep mode and a running mode; determining the target threshold voltage based on the current mode includes: When the current mode is the sleep mode, the target threshold voltage is determined to be a first preset voltage; When the current mode is the operating mode, the target threshold voltage is determined to be the second preset voltage.
3. The vehicle charging method according to claim 2, characterized in that, The first preset voltage is greater than the second preset voltage.
4. The vehicle charging method according to claim 1, characterized in that, The step of determining the target replenishment voltage based on the current voltage, the first preset lookup table, and the second preset lookup table includes: The current charge level of the battery is determined based on the current voltage and the first preset lookup table; The target replenishment voltage is determined based on the current power level and the second preset lookup table.
5. The vehicle charging method according to claim 1, characterized in that, After determining the target replenishment voltage, the process also includes: The charging duration is determined based on the target charging voltage and a third preset lookup table; wherein, the third preset lookup table is a lookup table for charging and charging durations.
6. The vehicle charging method according to claim 1, characterized in that, The area controller includes a voltage acquisition harness and a voltage acquisition module; The voltage acquisition module is electrically connected to the battery via the voltage acquisition harness; determining the current voltage of the battery via the area controller includes: The voltage of the battery is acquired through the voltage acquisition module; Determine a first voltage drop and a second voltage drop; wherein, the first voltage drop is the voltage drop generated when the voltage acquisition harness and the voltage acquisition module acquire the battery voltage; the second voltage drop is the voltage drop generated by the load; The current voltage is determined based on the acquired voltage, the first voltage drop, and the second voltage drop.
7. The vehicle charging method according to claim 6, characterized in that, The method for determining the first voltage drop and the second voltage drop includes: The first voltage drop is determined based on the current current of the voltage acquisition module, as well as the length, resistance, and contact resistance of the voltage acquisition harness. The second pressure drop is determined based on the current mode.
8. A vehicle charging device, characterized in that, The vehicle includes a storage battery, a power battery, and a zone controller; the device includes: The first determining module is used to determine the current voltage of the battery and the current mode of the vehicle through the area controller; The second determining module is used to determine the target threshold voltage based on the current mode; The third determining module is used to determine the target replenishment voltage based on the current voltage, the first preset lookup table, and the second preset lookup table; The starting module is used to start the power battery to replenish the storage battery when the target replenishment voltage is less than the target threshold voltage.
9. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, implements the method as described in any one of claims 1-7.
10. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to perform the steps of the method as described in any one of claims 1-7.