Vehicle battery charging control system, method and vehicle

Abstract

This application provides a vehicle battery charging control system, method, and vehicle, relating to the field of new energy technology. The charging control system is applied to vehicles equipped with power batteries. The charging control system includes: an on-board communication module, a body control module, and a power domain controller. The on-board communication module is communicatively connected to the body control module, and the body control module is hard-wired connected to the power domain controller. The on-board communication module detects the battery voltage of the vehicle battery based on charging configuration information and sends a charging request to the body control module when the battery voltage meets preset charging conditions. The body control module responds to the charging request and wakes up the power domain controller via hard-wired connection. The power domain controller triggers the charging system to charge the vehicle battery. This charging control system reduces the possibility of over-discharge of the vehicle battery.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a battery charging control system, method and vehicle for a vehicle. Background Technology

[0002] Heavy-duty trucks are essential transportation tools in the logistics sector, serving as mobile homes for truck drivers. Drivers use them for cooking, charging their phones, nighttime lighting, using parking air conditioning in summer, and independent heating in winter—all of which consume vehicle battery power. Excessive battery drain can prevent the vehicle from starting and may even lead to battery failure. Therefore, an effective vehicle battery charging solution is urgently needed.

[0003] Currently, the vehicle battery voltage is typically monitored periodically by a power monitoring module. If the battery voltage reaches the charging threshold, the power monitoring module transmits a wake-up signal to the Vehicle Control Unit (VCU) via the CAN bus. The VCU then activates the charging system to recharge the vehicle battery. However, in some scenarios, this charging method can lead to over-discharge of the vehicle battery. Summary of the Invention

[0004] This application provides a battery charging control system, method, and vehicle for reducing the possibility of over-discharge of vehicle batteries.

[0005] In the first aspect, this application provides a battery charging control system for vehicles, which is applied to vehicles equipped with power batteries. The battery charging control system includes: an on-board communication module, a body control module, and a power domain controller. The on-board communication module is communicatively connected to the body control module, and the body control module is hard-wired connected to the power domain controller.

[0006] The Telematics Box (TBOX) is used to detect the battery voltage of the vehicle battery based on the charging configuration information, and send a charging request to the body control module when the battery voltage meets the preset charging conditions.

[0007] The Body Control Module (BCM) is used to respond to power replenishment requests and wake up the power domain controller via hardwired connection.

[0008] The Powertrain Management System (PMS) is used to trigger the charging system to charge the vehicle's battery.

[0009] In one possible implementation, preset charging conditions include: the battery voltage is less than a charging threshold, or the continuous duration during which the battery voltage is less than the charging threshold is greater than or equal to a first duration.

[0010] In one possible implementation, the charging system includes a battery management system (BMS), a high voltage control module (HVCM), and a direct current to direct current (DCDC) converter, wherein:

[0011] The BMS is used to monitor the vehicle status during the battery charging process; when the vehicle status meets the preset charging mode exit conditions, the hard-wired wake-up function of the body control module is turned off.

[0012] HVCM is used to control the release of high-voltage current from the power battery.

[0013] A DC-DC converter is used to convert high-voltage current into low-voltage current and transmit the low-voltage current to the vehicle battery to replenish the vehicle battery.

[0014] In one possible implementation, the charging mode exit condition includes at least one of the following: the vehicle's power mode is in ACC or ON position, the DC-DC converter is in non-operating mode for a duration greater than or equal to a second duration, the charging duration is greater than a duration threshold, the DC-DC converter's output current is lower than a current threshold for a duration greater than or equal to a third duration, the remaining power battery charge is less than or equal to a charge threshold for a duration greater than or equal to a fourth duration, and the vehicle's charging port is connected to a charging gun.

[0015] In one possible implementation, the vehicle communication module is also used to upload the vehicle status to the vehicle networking platform, which is used to display the vehicle status.

[0016] And / or, the vehicle communication module is also used to send battery voltage detection records to the vehicle networking platform, which then displays the detection records.

[0017] In one possible implementation, the BMS is also used to upload the vehicle status to the vehicle communication module, which is used to upload the vehicle status to the vehicle networking platform; and / or, the vehicle communication module is connected to an external network, and the vehicle communication module is also used to transmit the vehicle status to the external network.

[0018] In one possible implementation, the PMS is also used to: apply a predetermined voltage to the HVCM and DC-DC converters to start them up.

[0019] In one possible implementation, the vehicle control module is specifically used for:

[0020] In response to the power replenishment request, the main electromagnetic power switch is turned on, and the power domain controller is woken up via hardwire.

[0021] In one possible implementation, the vehicle communication module is connected to an external network, and the vehicle communication module is also used to: obtain, via the external network, the charging configuration information configured for the vehicle through the vehicle networking platform.

[0022] Secondly, this application provides a method for charging a vehicle battery, characterized in that it is applied to a vehicle equipped with a power battery, and the charging control method includes:

[0023] The vehicle communication module detects the battery voltage of the vehicle battery based on the charging configuration information, and sends a charging request to the body control module when the battery voltage meets the preset charging conditions.

[0024] The body control module responds to the power replenishment request by waking up the power domain controller via hardwired connection.

[0025] The power domain controller triggers the charging system to charge the vehicle's battery.

[0026] Thirdly, this application provides a vehicle comprising a vehicle body, a power battery, and various possible embodiments as described in the first aspect and / or the first aspect.

[0027] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed, are used to implement the second aspect and / or various possible embodiments of the second aspect as described above.

[0028] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the second aspect and / or various possible implementations of the second aspect as described above.

[0029] This application provides a vehicle battery charging control system, method, and vehicle, relating to the field of new energy technology. The charging control system is applied to vehicles equipped with power batteries. The charging control system includes: an on-board communication module, a body control module, and a power domain controller. The on-board communication module is communicatively connected to the body control module, and the body control module is hard-wired connected to the power domain controller. The on-board communication module is used to detect the battery voltage of the vehicle battery based on charging configuration information, and sends a charging request to the body control module when the battery voltage meets preset charging conditions. The body control module is used to respond to the charging request and wake up the power domain controller via hard-wired connection. The power domain controller is used to trigger the charging system to charge the vehicle battery. When the battery voltage meets the preset charging conditions, this application sends a charging request to the body control module. The body control module responds to the charging request by waking up the power domain controller via a hardwire connection. The body control module and the power domain controller are connected via a hardwire connection to provide a direct physical path, reducing the risk of hardwire wake-up signal transmission failure. Furthermore, the time consumed by transmitting the hardwire wake-up signal via a hardwire connection is less than that of transmitting the wake-up signal via CAN, thus alleviating signal transmission delay. After the power domain controller is woken up, it triggers the charging system to charge the vehicle's battery, thereby reducing the possibility of over-discharge of the vehicle battery. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0031] Figure 1 Flowchart of the vehicle battery charging control system provided in this application Figure 1 ;

[0032] Figure 2 A system block diagram of a vehicle battery charging control system provided in an embodiment of this application;

[0033] Figure 3 This is a flowchart illustrating the battery charging control method for a vehicle battery provided in an embodiment of this application.

[0034] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0036] Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0037] New energy heavy-duty trucks are equipped with power batteries, which have significant advantages over traditional heavy-duty trucks. The power battery not only provides driving energy but can also actively replenish the battery. This replenishment function is particularly important because it ensures the vehicle's electrical stability under various operating conditions. However, existing replenishment methods can lead to over-discharge of the vehicle's battery in certain situations.

[0038] To address the aforementioned issues, this application provides a battery charging control system for a vehicle. When the battery voltage meets preset charging conditions, the charging control system sends a charging request to the body control module. The body control module responds to the charging request by hard-wired wake-up of the power domain controller. Once the power domain controller is woken up, it triggers the charging system to charge the vehicle's battery, thereby reducing the possibility of over-discharge of the vehicle battery.

[0039] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0040] Figure 1 Flowchart of the vehicle battery charging control system provided in this application Figure 1 This charging control system is applied to vehicles equipped with power batteries. For example... Figure 1 As shown, the power replenishment control system 100 includes: an on-board communication module 101, a body control module 102, and a power domain controller 103. The on-board communication module 101 is communicatively connected to the body control module 102, and the body control module 102 is connected to the power domain controller 103 via a hard wire.

[0041] The vehicle communication module 101 is used to detect the battery voltage of the vehicle battery based on the charging configuration information, and send a charging request to the body control module when the battery voltage meets the preset charging conditions.

[0042] The body control module 102 is used to respond to a power replenishment request and wake up the power domain controller via hardwire.

[0043] The power domain controller 103 is used to trigger the charging system to charge the vehicle's battery.

[0044] In this embodiment, it can be understood that the battery charging control system detects the battery voltage level of the vehicle battery based on preset charging configuration information. The charging configuration information can be set according to actual needs, and this embodiment does not impose any limitations. For example, the charging configuration information includes the time interval for voltage detection. When the detected battery voltage meets the preset charging conditions, it is considered that the vehicle battery needs charging, and a charging request should be sent to the body control module. After receiving the charging request, the body control module wakes up the power domain controller via hardwired activation. The implementation method of hardwired activation of the power domain controller can be set according to actual needs.

[0045] In one implementation, the body control module outputs a 24V hardwired signal to the power domain controller to wake up the power domain controller via hardwire.

[0046] After the power domain controller is awakened, it will trigger the charging system to charge the vehicle's battery, thereby achieving automatic charging of the vehicle's battery.

[0047] In this embodiment, when the battery voltage meets the preset charging conditions, a charging request is sent to the body control module. The body control module responds to the charging request by waking up the power domain controller via a hardwire connection. The body control module and the power domain controller are connected via a hardwire connection to provide a direct physical path, reducing the risk of hardwire wake-up signal transmission failure. Furthermore, the time consumed by transmitting the hardwire wake-up signal via a hardwire connection is less than that of transmitting the wake-up signal via CAN, thus alleviating signal transmission delay. After the power domain controller is woken up, it triggers the charging system to charge the vehicle's battery, thereby reducing the possibility of over-discharge of the vehicle battery.

[0048] Based on the above embodiments, the preset charging conditions include: the battery voltage is less than a charging threshold, or the continuous duration for which the battery voltage is less than the charging threshold is greater than or equal to a first duration. The charging threshold and the first duration can be set according to actual needs; for example, the charging threshold can be set to 24V and the first duration can be set to 5 seconds.

[0049] In the first implementation, the battery voltage is considered to meet the preset charging condition when it is less than 24V. This means that in this implementation, once the battery voltage drops below 24V, it is considered to meet the preset charging condition. This immediate response ensures that the battery is always within a safe voltage range, avoiding starting difficulties caused by excessively low voltage.

[0050] In the second implementation, the battery voltage is considered to meet the preset charging condition when the continuous duration of the battery voltage being less than 24V is greater than or equal to 5 seconds. This means that in this implementation, it's necessary to determine not only whether the battery voltage is less than 24V, but also whether the continuous duration of the battery voltage being less than 24V is greater than or equal to 5 seconds. Only when both conditions are met is the battery voltage considered to meet the preset charging condition. This method of initiating charging only after the continuous duration of the battery voltage being less than 24V for greater than or equal to 5 seconds avoids unnecessary charging due to short-term voltage fluctuations. Furthermore, this strategy helps save energy and reduces the stress on the battery from frequent charging.

[0051] This application embodiment improves the flexibility of the power supply control system by providing different preset power supply conditions, enabling the power supply control system to better meet the different needs of users.

[0052] Based on the above embodiments, the power supply system includes a BMS, an HVCM, and a DC-DC converter, wherein:

[0053] The BMS is used to monitor the vehicle status during the battery charging process; when the vehicle status meets the preset charging mode exit conditions, the hard-wired wake-up function of the body control module is turned off.

[0054] HVCM is used to control the release of high-voltage current from the power battery.

[0055] A DC-DC converter is used to convert high-voltage current into low-voltage current and transmit the low-voltage current to the vehicle battery to replenish the vehicle battery.

[0056] In this embodiment, it can be understood that during the battery charging process, the BMS is also needed to monitor the vehicle status. When the vehicle status monitored by the BMS meets the preset charging mode exit conditions, it will notify the BCM to stop hard-wired wake-up of the power domain controller, that is, to turn off the hard-wired wake-up function of the BCM.

[0057] The conditions for exiting the charging mode include at least one of the following: the vehicle's power mode is in ACC or ON position; the duration of the DC-DC converter being in non-working mode is greater than or equal to a second duration; the charging duration is greater than a duration threshold; the duration of the DC-DC converter's output current being lower than a current threshold is greater than or equal to a third duration; the duration of the remaining power battery charge being less than or equal to a charge threshold is greater than or equal to a fourth duration; and the vehicle's charging port is connected to a charging gun.

[0058] In one implementation, the charging mode exit condition includes at least one of the following: the vehicle's power mode is in ACC or ON position; the DC-DC converter is in non-operating mode for a duration greater than or equal to 30 seconds; the charging duration is greater than 2 hours (i.e., a single charging session lasts longer than 2 hours); the DC-DC converter's output current is lower than 8A for a duration greater than or equal to 30 seconds; the remaining battery charge (State of Charge, SOC) is less than or equal to 35% for a duration greater than or equal to 30 seconds; and the vehicle's charging port is connected to a charging gun. By providing different charging mode exit conditions, the flexibility of the charging control system can be improved, enabling it to better meet the diverse needs of users.

[0059] Furthermore, when the vehicle status does not meet the preset conditions for exiting the charging mode, the power domain controller will continuously trigger the charging system to charge the battery.

[0060] Furthermore, the principle of the charging system to charge the battery is as follows: the power domain controller, after being awakened, activates the HVCM and DC-DC converter; the HVCM controls the power battery to release high-voltage current and sends the high-voltage current to the DC-DC converter; the DC-DC converter converts the received high-voltage current into low-voltage current and sends the low-voltage current to the battery to charge the battery.

[0061] This application embodiment utilizes BMS to monitor the vehicle status during the battery charging process. When the vehicle status meets the preset charging mode exit conditions, the hard-wired wake-up function of the body control module can be shut down in time to prevent the battery from being overcharged and protect the battery.

[0062] Based on the above embodiments, the BMS is also used to upload the vehicle status to the vehicle networking platform, which is used to display the vehicle status; and / or, the vehicle communication module is also used to send the battery voltage detection record to the vehicle networking platform, which is used to display the detection record.

[0063] In this embodiment, it can be understood that the vehicle status monitored by the BMS is transmitted to the vehicle networking platform, and the vehicle networking platform displays the received vehicle status to the user.

[0064] Furthermore, when the vehicle communication module detects the battery voltage of the vehicle's battery based on the charging configuration information, it will also send the battery voltage detection record to the vehicle network platform, which will then display the received detection record to the user.

[0065] This application embodiment utilizes a vehicle networking platform to display detection records and / or vehicle status, which helps users understand the voltage detection status and vehicle status in real time.

[0066] Furthermore, the BMS also uploads vehicle status data to the onboard communication module, which in turn uploads the vehicle status data to the vehicle networking platform; and / or, the onboard communication module connects to an external network and also transmits the vehicle status data to that external network. Specifically: the BMS monitors vehicle status data in real time, and this data is transmitted to the onboard communication module, which processes and packages the received data. The onboard communication module then sends the processed data to the vehicle networking platform, for example, via wireless communication technology. The vehicle networking platform presents the received data to the user; and / or, the onboard communication module connects to an external network and transmits the vehicle status data to that external network. Real-time monitoring and management of vehicle status are achieved through these methods.

[0067] Before triggering the charging system to charge the battery, the power domain controller must be used to start the HVCM and DC-DC converters. Specifically, the power domain controller is also used to apply a predetermined voltage to the HVCM and DC-DC converters to start them.

[0068] For example, a high voltage of 24V is applied to the HVCM and DC-DC converter to switch the HVCM and DC-DC converter from standby or off state to operating state, thereby completing the startup of the HVCM and DC-DC converter.

[0069] The embodiments of this application can reduce unnecessary current surges and protect the HVCM and DC-CDC converters by applying a predetermined voltage to start them.

[0070] Based on the above embodiments, the vehicle body control module is specifically used to: respond to a power replenishment request, turn on the main electromagnetic power switch, and wake up the power domain controller via hard wiring.

[0071] In this embodiment, it can be understood that when a power replenishment request is received, the body control module will respond to the request by turning on the main electromagnetic power switch to replenish the battery, thereby ensuring the battery's power supply to the entire vehicle. In addition, the body control module will also wake up the power domain controller via a hardwired signal, for example, by outputting a 24V hardwired signal to the power domain controller.

[0072] This application embodiment enhances the safety of the vehicle's power supply control system by precisely controlling the main electromagnetic power switch.

[0073] Furthermore, the vehicle-mounted communication module connects to an external network and is also used to: obtain charging configuration information configured for the vehicle through the vehicle-to-everything (V2X) platform via the external network. The vehicle-mounted communication module acts as a bridge between the vehicle and the external network, responsible for enabling bidirectional information transmission. By connecting to the external network, the vehicle-mounted communication module obtains information from the V2X platform, including the charging configuration information configured for the vehicle. This ensures the security and accuracy of information transmission, guaranteeing the reliable operation of the charging control system.

[0074] Next, an example will be given to illustrate the vehicle battery charging control system provided in the embodiments of this application. Figure 2 This is a system block diagram of a vehicle battery charging control system provided in an embodiment of this application. Figure 2 As shown, the power replenishment logic of this power replenishment control system is as follows:

[0075] 1. The TBOX is pre-configured with intelligent charging parameters. At this time, the TBOX is in the OFF position, i.e., in sleep mode. The intelligent charging parameters can be customized in the vehicle networking platform. The intelligent charging parameters include the charging threshold and the battery voltage detection time interval. When the battery voltage detected by the TBOX based on the voltage detection time interval reaches the charging threshold, it locally wakes up the CAN network. The CAN network sends a charging request signal to the BCM through the Gateway (GW). At the same time, the TBOX sends the charging trigger record back to the vehicle networking platform. For example, if the TBOX detects the battery voltage every 2 hours, and if the detected battery voltage is lower than 24V for 5 consecutive seconds, the TBOX locally wakes up the CAN network. The CAN network sends a charging request signal to the BCM through the GW. At the same time, the TBOX sends the charging trigger record back to the vehicle networking platform.

[0076] 2. When the BCM in the OFF position receives a power replenishment request from the TBOX, it turns on the main electromagnetic power switch to ensure the battery supplies power to the entire vehicle; the BCM also outputs a 24V hard-wired signal to the PMS to wake up the PMS in the OFF position.

[0077] 3. After the PMS is woken up, it wakes up and controls the BMS, HVCM and DCDC to work, so as to replenish the battery; specifically: based on the PMS, the HVCM and DCDC converter are activated; the HVCM controls the power battery to release high voltage current; the high voltage current is sent to the DCDC converter, which is used to convert the high voltage current into low voltage current and send the low voltage current to the battery to replenish the battery.

[0078] 4. When the BCM is in charging mode, if any of the following conditions are met, the hard-wire wake-up signal and the electromagnetic voltage main switch will be automatically turned off, and the charging time in the intelligent charging threshold will be reset. The conditions include: the vehicle's power mode is in ACC or ON position, the DCDC converter is in non-working mode for a duration of 30 seconds or more, the charging time is greater than 2 hours (i.e., a single charging time is greater than 2 hours), the DCDC converter's output current is lower than 8A for a duration of 30 seconds or more, the remaining power battery capacity (State of Charge, SOC) is less than or equal to 35% for a duration of 30 seconds or more, and the vehicle's charging port is connected to the charging gun.

[0079] 5. During the charging period, TBOX can collect the vehicle's operating status and upload real-time information to the vehicle networking platform.

[0080] In summary, this embodiment of the application uses the TBOX to periodically detect the battery voltage and trigger recharging. The BCM hardwire wakes up the PMS, which in turn controls the BMS, HVCM, and DC-DC converter to automatically recharge the battery while ensuring that the power battery retains remaining charge for normal operation.

[0081] Furthermore, this application also provides a method for controlling the charging of a vehicle battery, applicable to vehicles equipped with power batteries. Figure 3 This is a schematic flowchart illustrating the battery charging control method for a vehicle battery provided in an embodiment of this application. Figure 3 As shown, the power replenishment control method includes: the vehicle communication module detects the battery voltage of the vehicle battery based on the power replenishment configuration information, and sends a power replenishment request to the body control module when the battery voltage meets the preset power replenishment conditions; the body control module responds to the power replenishment request and wakes up the power domain controller via hardwire; the power domain controller triggers the power replenishment system to replenish the vehicle battery.

[0082] The specific principles have been explained in detail in the previous embodiments, and therefore will not be repeated here. This embodiment sends a charging request to the vehicle control module only when the battery voltage meets the preset charging conditions, thereby reducing unnecessary charging processes. In response to the charging request, the power domain controller is hard-wired to ensure accurate activation when needed, thus improving the response efficiency of battery charging and reducing the possibility of over-discharge.

[0083] Based on the above embodiments, this application also provides a vehicle, including a vehicle body, a power battery, and a power replenishment control system as described in the previous embodiments.

[0084] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0085] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0086] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0087] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0088] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0089] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0090] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0091] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0092] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0093] The embodiments described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0094] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "implementation," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when describing a specific feature, structure, or characteristic in conjunction with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0095] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0096] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0097] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A battery charging control system for a vehicle, characterized in that, The charging control system, which is applied to vehicles equipped with power batteries, includes: an on-board communication module, a body control module, and a power domain controller. The on-board communication module is communicatively connected to the body control module, and the body control module is hardwired to the power domain controller. The vehicle communication module is used to detect the battery voltage of the vehicle battery based on the charging configuration information, and send a charging request to the body control module when the battery voltage meets the preset charging conditions. The Body Control Module (BCM) is used to respond to a power replenishment request, turn on the main electromagnetic power switch, and output a 24V hard-wire signal to the power domain controller via a hard-wire to wake up the power domain controller. The Power Domain Controller (PMS) is used to trigger the charging system to charge the vehicle's battery. Specifically, when the vehicle status meets the preset conditions for exiting the charging mode, the hard-wired wake-up function of the body control module is turned off.

2. The power supply control system according to claim 1, characterized in that, The preset charging conditions include: the battery voltage is less than the charging threshold, or the continuous duration during which the battery voltage is less than the charging threshold is greater than or equal to a first duration.

3. The power supply control system according to claim 1 or 2, characterized in that, The charging system includes a battery management system (BMS), a high-voltage control module (HVCM), and a DC-DC converter, wherein: The BMS is used to monitor the vehicle status during the battery charging process; when the vehicle status meets the preset charging mode exit conditions, the hard-wired wake-up function of the body control module is turned off. The HVCM is used to control the release of high-voltage current from the power battery; The DC-DC converter is used to convert high-voltage current into low-voltage current and transmit the low-voltage current to the vehicle battery to replenish the vehicle battery.

4. The power supply control system according to claim 3, characterized in that, in, The conditions for exiting the charging mode include at least one of the following: the vehicle's power mode is in ACC or ON position; the duration of the DC-DC converter being in non-working mode is greater than or equal to a second duration; the charging duration is greater than a duration threshold; the duration of the DC-DC converter's output current being lower than a current threshold is greater than or equal to a third duration; the duration of the remaining power battery charge being less than or equal to a charge threshold is greater than or equal to a fourth duration; and the vehicle's charging port is connected to a charging gun.

5. The power supply control system according to claim 3, characterized in that, The BMS is also used to upload the vehicle status to the vehicle network platform, and the vehicle network platform is used to display the vehicle status. And / or, the vehicle communication module is further configured to send the battery voltage detection record to the vehicle networking platform, and the vehicle networking platform is configured to display the detection record.

6. The power supply control system according to claim 5, characterized in that, The BMS is also used to upload the vehicle status to the vehicle communication module, which is used to upload the vehicle status to the vehicle networking platform; and / or, the vehicle communication module is connected to an external network, and the vehicle communication module is also used to transmit the vehicle status to the external network.

7. The power supply control system according to claim 3, characterized in that, The PMS is also used to: apply a predetermined voltage to the HVCM and the DC-DC converter to start the HVCM and the DC-DC converter.

8. The power supply control system according to claim 1 or 2, characterized in that, The vehicle communication module is connected to an external network, and the vehicle communication module is also used to: obtain the charging configuration information configured for the vehicle through the vehicle network platform via the external network.

9. A method for controlling the charging of a vehicle battery, characterized in that, Applied to vehicles equipped with power batteries, the charging control method includes: The vehicle communication module detects the battery voltage of the vehicle battery based on the charging configuration information, and sends a charging request to the body control module when the battery voltage meets the preset charging conditions. The body control module responds to the power replenishment request by turning on the electromagnetic power main switch and outputting a 24V hard-wire signal to the power domain controller to wake up the power domain controller. The power domain controller triggers the power replenishment system to replenish the vehicle's battery; Specifically, when the vehicle status meets the preset conditions for exiting the charging mode, the hard-wired wake-up function of the body control module is turned off.

10. A vehicle, characterized in that, It includes the vehicle body, the power battery, and the power replenishment control system as described in any one of claims 1 to 8.

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