Charging control system and method for vehicle storage battery and vehicle

Abstract

The invention provides a charging control system and method for a vehicle storage battery and a vehicle, and relates to the technical field of new energy. The electricity supplementing control system is applied to a vehicle provided with a power battery, the electricity supplementing control system comprises a vehicle-mounted communication module, a vehicle body control module and a power domain controller, the vehicle-mounted communication module is in communication connection with the vehicle body control module, and the vehicle body control module is connected with the power domain controller through a hard wire; the vehicle-mounted communication module is used for detecting the battery voltage of a vehicle storage battery based on the charging configuration information and sending a charging request to the vehicle body control module when the battery voltage meets a preset charging condition; the vehicle body control module is used for responding to the charging request and awakening the power domain controller through a hard wire; and the power domain controller is used for triggering the charging system to charge a vehicle storage battery of the vehicle. According to the charging control system, the possibility of over-discharge of the storage battery of the vehicle is reduced.

Description

Technical Field

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

[0002] Heavy trucks are important means of transportation in the logistics field and have become mobile homes for truck drivers. Drivers cook in their vehicles, charge their phones, use lights at night, use parking air conditioners in the summer, and use independent heaters in the winter, all of which consume the power of the vehicle battery. If the vehicle battery consumes too much power, the vehicle may not start normally, or even cause the vehicle battery to run out of power and become scrapped. Therefore, an effective solution for replenishing vehicle batteries is urgently needed.

[0003] At present, the battery voltage of the vehicle battery is usually detected regularly through the 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) through the CAN line, and the vehicle control unit starts the charging system to charge the vehicle battery. However, in some scenarios, this charging method will cause the vehicle battery to over-discharge. Summary of the invention

[0004] The present application provides a vehicle battery charging control system, method and vehicle to reduce the possibility of over-discharging of the vehicle battery.

[0005] In a first aspect, the present application provides a vehicle battery charging control system, which is applied to a vehicle equipped with a power battery. The charging control system includes: an on-board communication module, a body control module, and a power domain controller, wherein the on-board communication module is communicatively connected to the body control module, and the body control module is connected to the power domain controller via a hard line;

[0006] The vehicle communication module (Telematics BOX, referred to as 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 condition;

[0007] The Body Control Module (BCM) is used to respond to the power replenishment request and wake up the power domain controller through hard wiring;

[0008] The powertrain management system (PMS) is used to trigger the charging system to recharge the vehicle battery.

[0009] In a possible implementation, the preset power replenishment condition includes: the battery voltage is less than the power replenishment threshold, or the battery voltage is less than the power replenishment threshold for a continuous period greater than or equal to a first period.

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

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

[0012] HVCM, used to control the power battery to release high-voltage current;

[0013] The DCDC 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 a possible implementation, the exit condition of the power replenishment mode includes at least one of the following: the vehicle's power mode is in ACC or ON gear, the DCDC converter is in non-working mode for a duration greater than or equal to a second duration, the power replenishment duration is greater than a duration threshold, the output current of the DCDC converter is lower than the current threshold for a duration greater than or equal to a third duration, the remaining power of the power battery is less than or equal to the power threshold for a duration greater than or equal to a fourth duration, and the vehicle's charging interface is connected to a charging gun.

[0015] In a possible implementation, the vehicle communication module is further used to upload the vehicle status to the Internet of Vehicles platform, and the Internet of Vehicles platform is used to display the vehicle status;

[0016] And / or, the vehicle-mounted communication module is also used to send the battery voltage detection record to the vehicle networking platform, and the vehicle networking platform is used to display the detection record.

[0017] In a possible implementation, the BMS is also used to upload the vehicle status to the on-board communication module, and the on-board communication module is used to upload the vehicle status to the Internet of Vehicles platform; and / or, the on-board communication module is connected to an external network, and the on-board communication module is also used to transmit the vehicle status to the external network.

[0018] In a possible implementation manner, the PMS is further configured to: apply a predetermined voltage to the HVCM and the DCDC converter to start the HVCM and the DCDC converter.

[0019] In a possible implementation manner, the body control module is specifically configured to:

[0020] In response to the power replenishment request, the main switch of the electromagnetic power supply is turned on, and the power domain controller is awakened through the hard line.

[0021] In a possible implementation, the vehicle-mounted communication module is connected to an external network, and the vehicle-mounted communication module is further used to: obtain, through the external network, charging configuration information configured for the vehicle through the Internet of Vehicles platform.

[0022] In a second aspect, the present application provides a method for controlling the charging of a vehicle battery, characterized in that the method is applied to a vehicle equipped with a power battery, and the method comprises:

[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 condition;

[0024] The body control module responds to the request for replenishment and wakes up the power domain controller through hard wiring;

[0025] The power domain controller triggers the power replenishment system to replenish the vehicle battery of the vehicle.

[0026] In a third aspect, the present application provides a vehicle comprising a vehicle body, a power battery and various possible implementations of the first aspect and / or the first aspect.

[0027] In a fourth aspect, the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed, they are used to implement the above second aspect and / or various possible implementations of the second aspect.

[0028] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above second aspect and / or various possible implementations of the second aspect.

[0029] The present application provides a vehicle battery charging control system, method and vehicle, which relate to the field of new energy technology. The charging control system is applied to vehicles equipped with power batteries, and the charging control system includes: an on-board communication module, a body control module and a power domain controller, wherein the on-board communication module is connected to the body control module in communication, and the body control module is connected to the power domain controller through a hard line; the on-board 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 condition; the body control module is used to respond to the charging request and wake up the power domain controller through a hard line; the power domain controller is used to trigger the charging system to charge the vehicle battery of the vehicle. When the battery voltage meets the preset charging conditions, the present application sends a charging request to the body control module. The body control module responds to the charging request and wakes up the power domain controller through a hard wire. The body control module and the power domain controller provide a direct physical path through a hard wire connection, thereby reducing the risk of failure in hard wire wake-up signal transmission. Furthermore, the time consumed by the hard wire connection to transmit the hard wire wake-up signal is less than that of the CAN transmission wake-up signal, thereby alleviating the delay in signal transmission. After the power domain controller is awakened, the charging system is triggered to charge the vehicle battery of the vehicle, thereby reducing the possibility of over-discharge of the vehicle battery. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0031] Figure 1 Schematic diagram of the process 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 the present application;

[0033] Figure 3 A flow chart of a method for controlling the charging of a vehicle battery provided in an embodiment of the present application.

[0034] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] Those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments to them 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. Power batteries not only provide driving energy, but can also actively recharge the battery. This recharging function is particularly important because it ensures the power stability of the vehicle under various operating conditions. However, the existing recharging method will cause the vehicle battery to over-discharge in some cases.

[0038] In order to address the above-mentioned problems, the present application provides a battery charging control system for a vehicle battery. When the battery voltage meets the preset charging conditions, the battery charging control system sends a charging request to the body control module. The body control module responds to the charging request and wakes up the power domain controller through a hard line. After the power domain controller is awakened, it triggers the charging system to charge the vehicle battery of the vehicle, thereby reducing the possibility of over-discharge of the vehicle battery.

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

[0040] Figure 1 Schematic diagram of the process of the vehicle battery charging control system provided in this application Figure 1 The power replenishment control system is applied to vehicles equipped with power batteries. 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, wherein the on-board communication module 101 is connected to the body control module 102 for communication, and the body control module 102 is connected to the power domain controller 103 through a hard line;

[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 condition;

[0042] The body control module 102 is used to respond to the power replenishment request and wake up the power domain controller through a hard line;

[0043] The power domain controller 103 is used to trigger the power replenishment system to replenish power for the vehicle battery.

[0044] In this embodiment, it can be understood that the power replenishment control system detects the battery voltage level of the vehicle battery based on the preset power replenishment configuration information. Among them, the power replenishment configuration information can be set according to actual needs, and the embodiment of the present application is not limited. For example, the power replenishment configuration information includes the time interval for voltage detection. When the detected battery voltage meets the preset power replenishment conditions, it can be considered that the vehicle battery needs to be recharged, and at this time a power replenishment request should be sent to the body control module. After receiving the power replenishment request, the body control module wakes up the power domain controller through a hard wire, and the implementation method of hard-wired wake-up of the power domain controller can be set according to actual needs.

[0045] In one implementation, the body control module outputs a 24V hard-wired signal to the power domain controller to wake up the power domain controller by hard-wire.

[0046] After the power domain controller is awakened, the charging system will be triggered to perform charging operations for the vehicle's battery, thereby realizing automatic charging for the vehicle's battery.

[0047] In the embodiment of the present application, 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 and wakes up the power domain controller through a hard wire. The body control module and the power domain controller provide a direct physical path through a hard wire connection, thereby reducing the risk of failure in hard wire wake-up signal transmission. Furthermore, the time consumed by the hard wire connection to transmit the hard wire wake-up signal is less than that of the CAN transmission wake-up signal, thereby alleviating the delay in signal transmission. After the power domain controller is awakened, the charging system is triggered to charge the vehicle battery of the vehicle, thereby reducing the possibility of over-discharge of the vehicle battery.

[0048] Based on the above embodiment, the above preset charging condition includes: the battery voltage is less than the charging threshold, or the battery voltage is less than the charging threshold for a continuous period greater than or equal to a first period. The charging threshold and the first period can be set according to actual needs. For example, the charging threshold can be set to 24V and the first period can be set to 5 seconds.

[0049] In the first implementation, when the battery voltage is less than 24V, it is considered that the battery voltage meets the preset charging condition. It can be understood that in this implementation, once the battery voltage is less than 24V, it is considered that the battery voltage meets the preset charging condition. This immediate response ensures that the battery is always within the safe voltage range, avoiding starting difficulties caused by low voltage.

[0050] In the second implementation, when the battery voltage is less than 24V for a continuous period of greater than or equal to 5 seconds, it can be considered that the battery voltage meets the preset power replenishment conditions. It can be understood that in this implementation, it is necessary not only to determine whether the battery voltage is less than 24V, but also to determine whether the continuous period of the battery voltage less than 24V is greater than or equal to 5 seconds. When the battery voltage meets the above conditions, the battery voltage can be considered to meet the preset power replenishment conditions. This method of replenishing power only starts when the battery voltage is less than 24V for a continuous period of greater than or equal to 5 seconds, which can avoid unnecessary charging due to short-term voltage fluctuations. Furthermore, this strategy helps save energy and reduce the pressure on the battery from frequent power replenishment.

[0051] The embodiments of the present application can improve the flexibility of the power replenishment control system by providing different preset power replenishment conditions, so that the power replenishment control system can better meet the different needs of users.

[0052] Based on the above embodiment, the power compensation system includes a BMS, an HVCM and a DCDC converter, wherein:

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

[0054] HVCM, used to control the power battery to release high-voltage current;

[0055] The DCDC 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 charging process of the vehicle battery, the BMS needs to be used to monitor the vehicle status. When the vehicle status monitored by the BMS meets the preset exit conditions of the charging mode, the BCM will be notified to stop hard-wired wake-up of the power domain controller, that is, to shut down the hard-wired wake-up function of the BCM.

[0057] Among them, the exit conditions of the power replenishment mode include at least one of the following: the vehicle's power mode is in ACC or ON gear, the DCDC converter is in non-working mode for a duration greater than or equal to a second duration, the power replenishment duration is greater than the duration threshold, the output current of the DCDC converter is lower than the current threshold for a duration greater than or equal to a third duration, the remaining power of the power battery is less than or equal to the power threshold for a duration greater than or equal to a fourth duration, and the vehicle's charging interface is connected to a charging gun.

[0058] In one implementation, the conditions for exiting the charging mode include at least one of the following: the vehicle's power mode is in ACC or ON gear, the DCDC converter is in non-operating mode for a duration greater than or equal to 30 seconds, the charging time is greater than 2 hours (i.e., a single charging time is greater than 2 hours), the output current of the DCDC converter is less than 8A for a duration greater than or equal to 30 seconds, the remaining power of the power battery (State of Charge, referred to as 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 conditions for exiting the charging mode, the flexibility of the charging control system can be improved, so that the charging control system can better meet the different 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 continue to trigger the charging system to recharge the battery.

[0060] Furthermore, the principle of the power replenishment system for replenishing the battery is as follows: after being awakened, the power domain controller will activate the HVCM and DCDC converter; the HVCM controls the power battery to release high-voltage current and transmits the high-voltage current to the DCDC converter; the DCDC converter converts the received high-voltage current into low-voltage current, and transmits the low-voltage current to the battery to replenish the battery.

[0061] The embodiment of the present application uses the BMS to monitor the vehicle status during the charging process of the vehicle battery. When the vehicle status meets the preset charging mode exit conditions, the hard-line wake-up function of the body control module can be turned off in time to avoid over-charging of the battery and protect the battery.

[0062] Based on the above embodiments, the BMS is also used to upload the vehicle status to the Internet of Vehicles platform, and the Internet of Vehicles platform is used to display the vehicle status; and / or the vehicle-mounted communication module is also used to send battery voltage detection records to the Internet of Vehicles platform, and the Internet of Vehicles platform is used to display the detection records.

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

[0064] Furthermore, when the vehicle-mounted communication module detects the battery voltage of the vehicle battery based on the charging configuration information, it will also send the battery voltage detection record to the vehicle networking platform, and the vehicle networking platform will display the received detection record to the user.

[0065] The embodiment of the present application utilizes the Internet of Vehicles 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 is also used to upload the vehicle status to the on-board communication module, and the on-board communication module is used to upload the vehicle status to the Internet of Vehicles platform; and / or, the on-board communication module is connected to an external network, and the on-board communication module is also used to transmit the vehicle status to the external network. Specifically: BMS monitors the vehicle status data in real time, and these data are transmitted to the on-board communication module, and the on-board communication module processes and packages the received data. The on-board communication module sends the processed data to the Internet of Vehicles platform, for example, by sending the processed data to the Internet of Vehicles platform via wireless communication technology. The Internet of Vehicles platform presents the received data to the user; and / or, the on-board communication module is connected to an external network, and the on-board communication module transmits the vehicle status to the external network. Real-time monitoring and management of the vehicle status are achieved in the above manner.

[0067] Before triggering the power replenishment system to replenish the battery, the power domain controller needs to be used to start the HVCM and the DCDC converter. Specifically, the power domain controller is also used to: apply a predetermined voltage to the HVCM and the DCDC converter to start the HVCM and the DCDC converter.

[0068] For example, a high voltage of 24V is applied to the HVCM and DCDC converters to switch the HVCM and DCDC converters from a standby or shutdown state to a working state, thereby completing the startup work of the HVCM and DCDC converters.

[0069] The embodiments of the present application start the HVCM and DCDC converters by applying a predetermined voltage, thereby reducing unnecessary current shocks and protecting the HVCM and DCDC converters.

[0070] On the basis of the above-mentioned embodiment, the body control module is specifically used to: respond to the power replenishment request, turn on the main switch of the electromagnetic power supply, and wake up the power domain controller through a hard line.

[0071] In this embodiment, it can be understood that when a request for recharging power is received, the body control module will respond to the request and turn on the main electromagnetic power switch to recharge the battery, thereby ensuring that the battery supplies power to the entire vehicle. In addition, the body control module will also wake up the power domain controller through a hard line, for example, by outputting a 24V hard line signal to the power domain controller to wake up the power domain controller.

[0072] The embodiments of the present application enhance the safety of the vehicle's power replenishment control system by precisely controlling the main switch of the electromagnetic power supply.

[0073] Furthermore, the vehicle-mounted communication module is connected to the external network, and the vehicle-mounted communication module is also used to obtain the charging configuration information configured for the vehicle through the Internet of Vehicles platform through the external network. The vehicle-mounted communication module is a bridge between the vehicle and the external network, responsible for realizing the two-way transmission of information. The vehicle-mounted communication module obtains information from the Internet of Vehicles platform by connecting to the external network, including the charging configuration information configured for the vehicle. The vehicle-mounted communication module can ensure the security and accuracy of confidence transmission and ensure 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 embodiment of the present application. Figure 2 This is a system block diagram of a vehicle battery charging control system provided in an embodiment of the present application. Figure 2 As shown, the power replenishment logic of the power replenishment control system is as follows:

[0075] 1. Preset intelligent charging parameters in TBOX. At this time, TBOX is in the OFF position, that is, in a dormant state. The intelligent charging parameters can be customized in the Internet of Vehicles platform. The intelligent charging parameters include the charging threshold and the time interval of battery voltage detection. When the battery voltage detected by TBOX based on the voltage detection time interval reaches the charging threshold, the CAN network is woken up locally. The CAN network sends a charging request signal to the BCM through the gateway (GW). At the same time, TBOX sends back the charging trigger record to the Internet of Vehicles platform. For example, TBOX detects the battery voltage once every 2 hours. If the detected battery voltage is lower than 24V for 5 consecutive seconds, TBOX wakes up the CAN network locally. The CAN network sends a charging request signal to the BCM through the GW. At the same time, TBOX sends back the charging trigger record to the Internet of Vehicles platform.

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

[0077] 3. After PMS is awakened, it awakens and controls BMS, HVCM and DCDC to replenish the battery; specifically: based on PMS, activates HVCM and DCDC converters; controls the power battery to release high-voltage current through HVCM; transmits the high-voltage current to the DCDC converter, and the DCDC converter is used to convert the high-voltage current into a low-voltage current, and transmits the low-voltage current to the battery to replenish the battery;

[0078] 4. When the BCM is in the charging mode, if any of the following conditions is detected, the hard-wire wake-up signal and the electromagnetic voltage master 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 gear, the DCDC converter is in non-working mode for a duration greater than or equal to 30 seconds, the charging time is greater than 2 hours (i.e., the single charging time is greater than 2 hours), the output current of the DCDC converter is less than 8A for a duration greater than or equal to 30 seconds, the remaining power of the power battery (State of Charge, referred to as 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;

[0079] 5. During the charging period, TBOX can collect the working status of the entire vehicle and upload real-time information to the Internet of Vehicles platform.

[0080] In summary, the embodiment of the present application uses TBOX to periodically detect the battery voltage and trigger the charging, and the BCM hard-wired wakes up the PMS. The PMS controls the operation of the BMS, HVCM and DCDC converter to perform automatic charging of the battery, while ensuring that the power battery retains the remaining power for normal driving.

[0081] Furthermore, the embodiment of the present application also provides a method for controlling the charging of a vehicle battery, which is applied to a vehicle equipped with a power battery. Figure 3 The flowchart of the vehicle battery charging control method provided in the embodiment of the present application is as follows. Figure 3 As shown, the charging control method includes: the on-board 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 condition; the body control module responds to the charging request and wakes up the power domain controller through a hard line; the power domain controller triggers the charging system to charge the vehicle battery of the vehicle.

[0082] The specific principle has been described in detail in the previous embodiments, so the embodiments of this application will not be repeated here. The embodiments of this application send a charging request to the body control module only when the battery voltage meets the preset charging condition, thereby reducing unnecessary charging processes; responding to the charging request, waking up the power domain controller through a hard line, ensuring that the power domain controller is accurately woken up when needed, thereby improving the response efficiency of battery charging and reducing the possibility of battery over-discharge.

[0083] On the basis of the above-mentioned embodiments, the embodiments of the present application further provide a vehicle, comprising a vehicle body, a power battery and a power replenishment control system as described in the above-mentioned embodiments.

[0084] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0085] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0086] The above-mentioned 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 memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0087] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium 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 be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0088] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

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

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

[0091] If the function is implemented in the form of 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 the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0092] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

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

[0094] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0095] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0096] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0097] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A vehicle battery charging control system, characterized in that: Applied to a vehicle equipped with a power battery, the power replenishment control system includes: an on-board communication module, a body control module and a power domain controller, wherein the on-board communication module is connected to the body control module in communication, and the body control module is connected to the power domain controller via a hard line; 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 condition; The body control module BCM is used to respond to the power replenishment request and wake up the power domain controller through a hard line; The power domain controller PMS is used to trigger the power replenishment system to replenish the vehicle battery of the vehicle.

2. The power supply control system according to claim 1, characterized in that: The preset power replenishment condition includes: the battery voltage is less than a power replenishment threshold, or the continuous time length during which the battery voltage is less than the power replenishment threshold is greater than or equal to a first time length.

3. The power supplement control system according to claim 1 or 2, characterized in that: The power replenishment system includes a battery management system BMS, a high voltage control module HVCM and a DC-DC converter DCDC, wherein: The BMS is used to monitor the vehicle status during the charging process of the vehicle battery; when the vehicle status meets the preset charging mode exit condition, the hard-line wake-up function of the body control module is turned off; The HVCM is used to control the power battery to release high voltage current; The DCDC 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 supplement control system according to claim 3, characterized in that: in, The exit condition of the power replenishment mode includes at least one of the following: the vehicle's power mode is in ACC or ON gear, the DCDC converter is in non-working mode for a duration greater than or equal to a second duration, the power replenishment duration is greater than a duration threshold, the output current of the DCDC converter is lower than the current threshold for a duration greater than or equal to a third duration, the remaining power of the power battery is less than or equal to the power threshold for a duration greater than or equal to a fourth duration, and the vehicle's charging interface is connected to a charging gun.

5. The power supplement control system according to claim 3, characterized in that: The BMS is further used to upload the vehicle status to the Internet of Vehicles platform, and the Internet of Vehicles platform is used to display the vehicle status; And / or, the vehicle-mounted communication module is further used to send the battery voltage detection record to the vehicle networking platform, and the vehicle networking platform is used to display the detection record.

6. The power supplement control system according to claim 5, characterized in that: The BMS is also used to upload the vehicle status to the on-board communication module, and the on-board communication module is used to upload the vehicle status to the Internet of Vehicles platform; and / or the on-board communication module is connected to an external network, and the on-board communication module is also used to transmit the vehicle status to the external network.

7. The power supplement control system according to claim 3, characterized in that: The PMS is further configured to apply a predetermined voltage to the HVCM and the DCDC converter to start the HVCM and the DCDC converter.

8. The power supplement control system according to claim 1 or 2, characterized in that: The body control module is specifically used for: In response to the power replenishment request, the main switch of the electromagnetic power supply is turned on, and the PMS is awakened through a hard line.

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

10. A method for controlling the charging of a vehicle battery, characterized in that: Applied to a vehicle equipped with a power battery, the power replenishment 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 condition; The body control module responds to the request for replenishment and wakes up the power domain controller through hard wiring; The power domain controller triggers the power replenishment system to replenish power for the vehicle battery of the vehicle.

11. A vehicle, characterized in that: It comprises a vehicle body, a power battery and a power replenishment control system as described in any one of claims 1 to 9.

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