A vehicle-mounted charging device, method, vehicle and storage medium

Abstract

This application relates to an on-board charging device, method, vehicle, and storage medium, and pertains to the field of vehicle charging technology. The on-board charging device includes: a power module; a charging control device that operates during the charging of the power module; a non-charging control device, which is a control device other than the charging control device; a first relay for controlling the on / off state of the circuit between the power module and the non-charging control device; a second relay for controlling the on / off state of the circuit between the power module and the charging control device; and a controller electrically connected to the first and second relays, configured to: upon receiving a command to start charging, control the first relay to disconnect and control the second relay to engage; and upon receiving a command to end charging, control the first relay to engage. This reduces the low-voltage power consumption of the non-charging control device during vehicle charging, thereby reducing the charging time.

Description

Technical Field

[0001] This invention relates to the field of vehicle charging technology, specifically to an on-board charging device, method, vehicle, and storage medium. Background Technology

[0002] With social development, new energy vehicles are gaining increasing popularity and their market share is growing. Charging efficiency is a key factor for users. In related technologies, the battery charging system for new energy vehicles generally uses a microcontroller-based control board. This board communicates with the power module to obtain relevant data and controls relays to activate, enabling normal battery charging. However, this charging method suffers from high power consumption under low voltage loads and relatively low charging efficiency.

[0003] Therefore, how to solve the problem of high power consumption at low voltage during charging of new energy vehicles is an urgent issue to be addressed. Summary of the Invention

[0004] This application provides an on-board charging device, method, vehicle, and storage medium to at least solve the technical problems of high low-voltage power consumption and low charging efficiency in related technologies. The technical solution of this application is as follows: In a first aspect, embodiments of this application provide an on-board charging device, comprising: Power module; The charging control device operates during the charging process of the power module. Non-charging control device; a non-charging control device is a control device other than a charging control device. The first relay is used to control the on / off state of the circuit between the power module and the non-charging control device. The second relay is used to control the connection and disconnection of the circuit between the power module and the charging control device. The controller, electrically connected to the first and second relays, is configured to: Upon receiving a command to start charging, the first relay is deactivated, and the second relay is activated. Upon receiving a command to end charging, the first relay is activated.

[0005] The technical solution provided in this application provides at least the following beneficial effects: When charging a new energy vehicle, the control devices connected to the power module via various relays are all in standby mode. Since these standby devices still consume some power, the new energy vehicle generates significant low-voltage power consumption during charging, thus affecting its charging efficiency. This application addresses this by engaging only the second relay during charging to connect the charging control device to the power module, while simultaneously disconnecting the first relay to prevent connection between the non-charging control device and the power module. This reduces the low-voltage power consumption generated by the non-charging control device during vehicle charging, thereby improving the charging efficiency of the new energy vehicle and saving charging time.

[0006] In one possible implementation, the power module includes a charging interface for connecting an external power supply to the power module; the charging control device includes a battery management system (BMS) unit, the BMS module being electrically connected to the charging interface, and the BMS module being used to monitor the resistance value of the charging interface; the controller is further configured to receive a command to start charging sent by the BMS module when the BMS module detects that the resistance value of the charging interface is a preset resistance value.

[0007] As can be seen from the above embodiments, based on the resistance value detected by the BMS module at the charging interface, it can be determined whether the new energy vehicle is currently in an external charging state. When the BMS module detects that the resistance value of the charging interface is a preset resistance value, it can be determined that the vehicle is currently in an external charging state. In response, the controller receives the charging start command sent by the BMS module.

[0008] In one possible implementation, the charging control device further includes an on-board charger (OBC) unit and an OBC cooling water pump; when the second relay is energized, the OBC module is electrically connected to the power module through the second relay to control the charging process of the power module; the OBC cooling water pump is connected to the OBC module to dissipate heat from the OBC module.

[0009] As can be seen from the above embodiments, since the OBC module needs to control the charging process and the OBC cooling water pump needs to dissipate heat from the OBC module during the charging process of new energy vehicles, the OBC module and the OBC cooling water pump can be connected to the power module through the activated second relay, thereby being in a standby state.

[0010] In one possible implementation, the charging control device further includes an in-vehicle entertainment system controller and an instrument panel; when the second relay is energized, the in-vehicle entertainment system controller is electrically connected to the power module through the second relay to transmit charging parameters; the instrument panel is electrically connected to the second relay and the in-vehicle entertainment system controller to receive and display the charging parameters.

[0011] As can be seen from the above embodiments, during the charging process of new energy vehicles, the in-vehicle entertainment system controller needs to transmit vehicle background data, and the instrument needs to display charging parameters. Therefore, the in-vehicle entertainment system controller and the instrument can be connected to the power module through the engaged second relay, thus entering a standby state.

[0012] In one possible implementation, the controller of the above-mentioned charging control device is further configured to: control the charging control device and the non-charging control device to enter a sleep state when a command to end charging is received.

[0013] The charging control device and the non-charging control device include a sleep state, a standby state, and an operating state. The power consumption is at its minimum when the charging control device and the non-charging control device are in the sleep state. Therefore, when a command to end charging is received, controlling the charging control device and the non-charging control device to enter the sleep state can reduce power consumption.

[0014] Secondly, embodiments of this application provide an on-board charging method. Used in on-board charging devices, which include: Power module; The charging control device operates during the charging process of the power module. Non-charging control device; a non-charging control device is a control device other than a charging control device. The first relay is used to control the on / off state of the circuit between the power module and the non-charging control device. The second relay is used to control the connection and disconnection of the circuit between the power module and the charging control device. The methods include: Upon receiving a command to start charging, the first relay is deactivated, and the second relay is activated. Upon receiving a command to end charging, the first relay is activated.

[0015] In one possible implementation, the power module includes a charging interface for connecting an external power supply to the power module; the charging control device includes a BMS module electrically connected to the charging interface, and the BMS module is used to monitor the resistance value of the charging interface; the on-board charging method further includes receiving a charging start command sent by the BMS module when the detected resistance value of the charging interface is a preset resistance value.

[0016] In one possible implementation, the above-mentioned on-board charging method further includes: upon receiving an instruction to end charging, controlling the charging control device and the non-charging control device to enter a sleep state.

[0017] Thirdly, embodiments of this application provide a means of transportation, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the second aspect described above and any possible implementation thereof.

[0018] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions that, when executed on a computer, cause the computer to perform the methods described in the second aspect and any of their possible implementations.

[0019] Fifthly, embodiments of this application provide a computer program product, which includes computer instructions that, when executed on an electronic device, cause the electronic device to perform the methods described in the second aspect and any of their possible implementations.

[0020] It should be noted that the technical effects of any implementation method in the second aspect can be found in the corresponding technical effects in the first aspect, and will not be repeated here.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0022] 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, and do not constitute an undue limitation of this application.

[0023] Figure 1 This is a schematic diagram of the structure of an on-board charging device provided in an embodiment of this application; Figure 2 A schematic diagram of the hardware structure of a controller provided in an embodiment of this application; Figure 3 This is a schematic diagram of the architecture of an on-board charging system provided in an embodiment of this application; Figure 4 A schematic flowchart of an on-board charging method provided in an embodiment of this application; Figure 5 A schematic flowchart illustrating another on-board charging method provided in this application embodiment; Figure 6 This is a schematic diagram of the hardware structure of another controller provided in an embodiment of this application. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. 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.

[0026] As described in the background section, in related technologies, the battery charging system of new energy vehicles generally adopts a control board with a microcontroller as the core. It communicates with the charging module and the battery to obtain relevant data of the battery, and at the same time controls the relay to engage so that the battery can charge normally. This charging method has high power consumption under low voltage load and low charging efficiency.

[0027] In view of this, the embodiments of this application control the first relay connected to the charging control device to activate during the charging of a new energy vehicle, so as to connect the circuit between the charging control device and the power module, and control the first relay connected to the non-charging control device to deactivate, so as to disconnect the circuit between the non-charging control device and the power module. In this way, the low-voltage power consumption generated by the non-charging control device during the charging of the new energy vehicle can be reduced, thereby improving charging efficiency and reducing charging time.

[0028] To further describe the technical solutions of the embodiments of this application, as follows: Figure 1 The diagram shown is a structural diagram of an on-board charging device provided in an embodiment of this application.

[0029] Reference Figure 1 The on-board charging device 1 includes: a power module 10, a charging control device 20, a non-charging control device 30, a first relay 40, a second relay 50, and a controller 60.

[0030] In some embodiments, the power module 10 is used to store electrical energy and provide operating power support to the electrical components of the on-board charging device 1. The power module 10 may include related control circuitry.

[0031] Optionally, the power module 10 may include a charging interface 101 and a power battery. The charging interface 101 is used to connect an external power supply and the power battery, and the power battery is used to store electrical energy from the external power supply.

[0032] In some embodiments, the charging control device 20 is connected to the power module 10 via the second relay 50. The charging control device 20 operates during the charging process of the power module 10 to assist in completing the charging operation.

[0033] In some embodiments, the non-charging control device 30 is connected to the power module 10 via the first relay 40, and the non-charging control device 30 may not operate during the charging process of the power module 10.

[0034] Optionally, the non-charging control device 30 may include: a safety system controller, an intelligent driving controller, or a frequency receiver, etc.

[0035] In some embodiments, the first terminal of the first relay 40 is connected to the power module 10 and the second terminal is connected to the non-charging control device 30, for controlling the on / off of the circuit between the power module 10 and the non-charging control device 30.

[0036] Specifically, when the first relay 40 is engaged, the non-charging control device 30 is connected to the power module 10 through the first relay 40, and when the first relay 40 is disengaged, the non-charging control device 30 is in a de-energized state.

[0037] In some embodiments, the first end of the second relay 50 is electrically connected to the power module 10, and the second end is connected to the charging control device 20, for controlling the on / off state of the circuit between the power module 10 and the charging control device 20.

[0038] Specifically, when the second relay 50 is engaged, the charging control device 20 is connected to the power module 10 through the second relay 50, and when the second relay 50 is disengaged, the charging control device 20 is in a de-energized state.

[0039] In some embodiments, such as Figure 2As shown, the controller 60 is electrically connected to the power module 10, the charging control device 20, and the non-charging control device 30. The controller 60 generates operation control signals based on the instruction operation code and timing signals, instructing the on-board charging device 1 to execute control commands. For example, when the controller 60 receives a command to start charging, it controls the first relay 40 to open and the second relay 50 to close. When the controller 60 receives a command to end charging, it controls the first relay 40 to close.

[0040] For example, controller 60 may be a body domain control (BDC), a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. Controller 60 may also be other devices with processing functions, such as circuits, devices, or software modules; this application embodiment does not impose any limitations on this.

[0041] In some embodiments, the controller 60 can be a microcontroller unit (MCU). An MCU, also known as a single-chip microcomputer, is a chip-level computer that integrates a central processing unit (CPU) with appropriately reduced frequency and specifications, along with peripheral interfaces such as memory, timer, USB, A / D converter, UART, PLC, DMA, and even LCD driver circuitry, all onto a single chip. This allows for different combinations of control for various applications.

[0042] In addition, the controller 60 can be used to control the operation of each component in the on-board charging device 1 so that each component of the on-board charging device 1 can operate to achieve each predetermined function of the on-board charging device 1.

[0043] In some embodiments, continue as follows Figure 1 As shown, the charging control device 20 may include: BMS module 201, OBC module 202, OBC cooling water pump 203, in-vehicle entertainment system controller 204, and instrument panel 205. The BMS module 201, OBC module 202, OBC cooling water pump 203, and in-vehicle entertainment system controller 204 may be connected in parallel.

[0044] In some embodiments, when the second relay 50 is engaged, the BMS module 201 is connected to the power module 10 via the second relay 50. The BMS module 201 is also electrically connected to the charging interface 101 to detect the resistance value of the charging interface 101. The basic function of the BMS module is to monitor the basic parameters of the power battery, such as voltage, current, and temperature, as well as the state of the power battery. For example, the BMS module 201 can determine the parameters and state of the power battery by monitoring the resistance value of the charging interface 101 connected to the power battery.

[0045] In some embodiments, when the second relay 50 is engaged, the OBC module 202 is connected to the power module 10 through the second relay 50. The OBC module is used to control the charging process. The power module 10 can be charged by an external power supply through the OBC module 202, and the powered device can also be charged through the OBC module.

[0046] For example, the OBC module dynamically adjusts the charging current and voltage parameters based on the data provided by the BMS module, executes the corresponding charging actions, and completes the charging process.

[0047] In some embodiments, when the second relay 50 is energized, the OBC cooling water pump 203 is connected to the power module 10 through the second relay 50, and the OBC cooling water pump 203 is connected to the OBC module for heat dissipation of the OBC module 202.

[0048] In some embodiments, when the second relay 50 is energized, the in-vehicle entertainment system controller 204 is connected to the power module 10 through the second relay 50. The in-vehicle entertainment system controller 204 is used to control the in-vehicle entertainment system, which includes intelligent multimedia devices, such as car navigation.

[0049] In some embodiments, the instrument cluster 205 is electrically connected to the in-vehicle entertainment system 204. When the second relay 50 is energized, it is connected to the power module 10 through the second relay 50. The instrument cluster 205 is used to receive charging parameters and display the charging parameters.

[0050] For example, the instrument 205 can display the charging status and the power battery level, etc.

[0051] like Figure 3The diagram shown is a structural diagram of an on-board charging system architecture provided in this application. The gateway controller is divided into a first network segment, a second network segment, and a third network segment. The first terminal of the second relay A is electrically connected to the power module 10, and the second terminal is hard-wired to the first network segment, used to control the charging control device 20 on the first network segment. The first terminal of the second relay B is electrically connected to the power module 10, and the second terminal is hard-wired to the second network segment, used to control the charging control device 20 on the second network segment. The first terminal of the first relay 40 is electrically connected to the power module 10, and the second terminal is hard-wired to the third network segment, used to control the non-charging control device 30 on the third network segment. The controller 60, BMS module 201, OBC module 202, and OBC cooling water pump 203 are connected to the first network segment via a CAN bus, and can communicate with each other through the first network segment. The in-vehicle entertainment system 204 and the instrument cluster 101 are connected to the second network segment via a CAN bus, and the in-vehicle entertainment system 204 and the instrument cluster 101 communicate with each other via the second network segment. The non-charging control device 30 is connected to the third network segment via a CAN bus. The controller 60 is electrically connected to the second relay A, the second relay B, and the first relay 40 to control the on / off state of the second relay A, the second relay B, and the first relay 40 with the power module 10.

[0052] For ease of understanding, the on-board charging method provided in this application will be described in detail below with reference to the accompanying drawings.

[0053] Figure 4 This is a flowchart illustrating an on-board charging method according to an exemplary embodiment, such as... Figure 4 As shown, the on-board charging method includes the following steps: S101. Upon receiving a command to start charging, the controller controls the first relay to disconnect and the second relay to engage.

[0054] Optionally, when the BMS module detects that the resistance value of the charging interface is a preset resistance value, the controller receives a command from the BMS module to start charging.

[0055] As one possible implementation, when the BMS module detects that the resistance value of the charging interface is a first preset resistance value, it determines that the charging interface is connected to the DC charging pile. The BMS module then sends a command to the controller to start DC charging, and the controller receives the command from the BMS module. The first preset resistance value can be determined according to automotive charging standards.

[0056] As another possible implementation, when the BMS module detects that the resistance value of the charging interface is a second preset resistance value, it determines that the charging interface is connected to the AC charging pile. The BMS module then sends a command to the controller to start AC charging, and the controller receives the command from the BMS module. The second preset resistance value can be determined according to automotive charging standards.

[0057] As can be seen from the above embodiments, based on the resistance value detected by the BMS module at the charging interface, it can be determined whether the new energy vehicle is currently in an external charging state. When the BMS module detects that the resistance value of the charging interface is a preset resistance value, it can be determined that the vehicle is currently in an external charging state. In response, the controller receives the charging start command sent by the BMS module.

[0058] Optionally, upon receiving a command to start charging, the controller sends an electrical signal to the first relay to disconnect the first relay, for example, the electrical signal being at a low level.

[0059] S102. Upon receiving a command to end charging, the controller controls the first relay to engage.

[0060] Optionally, upon receiving a command to end charging, the controller sends an electrical signal to the first relay to disconnect the first relay, for example, the electrical signal being at a high level.

[0061] In some embodiments, the above-described on-board charging method further includes controlling the charging control device and the non-charging control device to enter a sleep state when a command to end charging is received.

[0062] The charging control device and the non-charging control device include a sleep state, a standby state, and an operating state. The power consumption is at its minimum when the charging control device and the non-charging control device are in the sleep state. Therefore, when a command to end charging is received, controlling the charging control device and the non-charging control device to enter the sleep state can reduce power consumption.

[0063] Figure 4 The illustrated embodiment offers at least the following advantages: When charging a new energy vehicle, the control devices connected to the power module via various relays are in standby mode. Since these standby devices still consume power, the new energy vehicle generates significant low-voltage power consumption during charging, thus affecting its charging efficiency. This embodiment addresses this by engaging only the second relay during charging to connect the charging control device to the power module, while simultaneously disconnecting the first relay to prevent connection between the non-charging control device and the power module. This reduces the low-voltage power consumption generated by the non-charging control device during vehicle charging, thereby improving the charging efficiency and saving charging time.

[0064] In some embodiments, the charging control device further includes an on-board charger (OBC) unit and an OBC cooling water pump; when the second relay is energized, the OBC module is electrically connected to the power module through the second relay to control the charging process of the power module, and the OBC cooling water pump is used to dissipate heat from the OBC module.

[0065] As can be seen from the above embodiments, since the OBC module needs to control the charging process and the OBC cooling water pump needs to dissipate heat from the OBC module during the charging process of new energy vehicles, the OBC module and the OBC cooling water pump can be connected to the power module through the activated second relay, thereby being in a standby state.

[0066] In some embodiments, the charging control device further includes an in-vehicle entertainment system controller and an instrument panel; when the second relay is energized, the in-vehicle entertainment system controller is electrically connected to the power module through the second relay to transmit charging parameters; the instrument panel is electrically connected to the second relay and the in-vehicle entertainment system to display charging parameters.

[0067] As can be seen from the above embodiments, during the charging process of new energy vehicles, the in-vehicle entertainment system controller needs to transmit vehicle background data, and the instrument panel needs to display charging parameters. Therefore, the in-vehicle entertainment system and the instrument panel can be connected to the power module through the engaged second relay, thus entering a standby state.

[0068] The following is combined Figure 5 An on-board charging method provided in the embodiments of this application will be described.

[0069] Initially, the vehicle was powered off; When the vehicle is powered off, the BMS module determines whether it is being externally charged based on the resistance value of the charging interface. If the BMS module determines that it is not in external charging, the BMS module continues to determine whether it is in external charging based on the resistance value of the charging interface. If the BMS module determines that it is in external charging mode, the controller receives the start charging command sent by the BMS module; After receiving the start charging command from the BMS module, the controller controls the first relay to disconnect and the second relay to engage. Charging begins after the controller disconnects the first relay and engages the second relay. During the charging process, the BMS module determines whether charging is complete based on the resistance value of the charging interface; If charging is not finished, continue to start charging; If charging is complete, the controller receives a command from the BMS module to end charging. After the controller receives the command to end charging from the BMS module, the controller controls the first relay to engage, and the controller controls the charging control device and the non-charging control device to enter a sleep state. Finish.

[0070] As can be seen, the above mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the embodiments of this application provide corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0071] This application embodiment can divide the controller into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0072] This application also provides a vehicle, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement any of the on-board charging methods provided in the above embodiments.

[0073] like Figure 6 As shown, the vehicle includes a processor 601, and optionally, a memory 602 and a communication interface 603 connected to the processor 601. The processor 601, memory 602, and communication interface 603 are connected via a bus 604.

[0074] Processor 601 may be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. Processor 601 may also be any other device with processing capabilities, such as a circuit, device, or software module. Processor 601 may also include multiple CPUs, and processor 601 may be a single-core processor or a multi-core processor. Here, "processor" can refer to one or more devices, circuits, or processing cores used to process data (e.g., computer program instructions).

[0075] The memory 602 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or it may be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer. This application embodiment does not impose any limitations on this. The memory 602 may exist independently or may be integrated with the processor 601. The memory 602 may contain computer program code. The processor 601 is used to execute the computer program code stored in the memory 602, thereby implementing the control method provided in this application embodiment.

[0076] The communication interface 603 can be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area network (WLAN), etc.). The communication interface 603 can be a module, circuit, transceiver, or any device capable of communication.

[0077] Bus 604 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Bus 604 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 6 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0078] This application also provides a computer-readable storage medium including computer-executable instructions that, when run on a computer, cause the computer to execute any of the on-board charging methods provided in the above embodiments.

[0079] This application also provides a computer program product containing computer execution instructions, which, when run on a computer, causes the computer to execute any of the on-board charging methods provided in the above embodiments.

[0080] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer-executable instructions. When these computer-executable instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer-executable instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer-executable instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs).

[0081] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple components. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0082] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely illustrative descriptions of the application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0083] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle-mounted charging device, characterized in that, include: Power module; The power module includes a charging interface, which is used to connect an external power supply to the power module. A charging control device operates during the charging process of the power module; the charging control device includes a BMS module, which is electrically connected to the charging interface and is used to monitor the resistance value of the charging interface. Non-charging control device, wherein the non-charging control device is a control device other than the charging control device; The first relay is used to control the on / off state of the circuit between the power module and the non-charging control device; The second relay is used to control the connection and disconnection of the circuit between the power module and the charging control device; A controller, electrically connected to the first relay and the second relay, is configured to: The BMS module receives a command to start charging when it detects that the resistance value of the charging interface is a preset resistance value. Upon receiving the command to start charging, the first relay is controlled to disconnect, and the second relay is controlled to engage. Upon receiving a command to end charging, the first relay is activated.

2. The on-board charging device according to claim 1, characterized in that, The charging control device further includes an OBC module and an OBC cooling water pump; when the second relay is engaged, the OBC module is electrically connected to the power module through the second relay to control the charging process of the power module; the OBC cooling water pump is connected to the OBC module to dissipate heat from the OBC module.

3. The on-board charging device according to claim 1, characterized in that, The charging control device also includes an in-vehicle entertainment system controller and an instrument panel; When the second relay is engaged, the in-vehicle entertainment system controller is electrically connected to the power module via the second relay for transmitting charging parameters. The instrument is electrically connected to the second relay and the in-vehicle entertainment system controller, and is used to receive and display the charging parameters.

4. The on-board charging device according to claim 1, characterized in that, The controller is also configured to: Upon receiving a command to end charging, the charging control device and the non-charging control device are controlled to enter a sleep state.

5. A vehicle-mounted charging method, characterized in that, Applied to an on-board charging device, the on-board charging device includes: Power module; the power module includes a charging interface for connecting an external power supply to the power module; A charging control device operates during the charging process of the power module; the charging control device includes a BMS module, which is electrically connected to the charging interface and is used to monitor the resistance value of the charging interface. Non-charging control device, wherein the non-charging control device is a control device other than the charging control device; The first relay is used to control the on / off state of the circuit between the power module and the non-charging control device; The second relay is used to control the connection and disconnection of the circuit between the power module and the charging control device; The method includes: The BMS module receives a command to start charging when it detects that the resistance value of the charging interface is a preset resistance value. Upon receiving a command to start charging, the first relay is deactivated, and the second relay is activated. Upon receiving a command to end charging, the first relay is activated.

6. A means of transportation, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the on-board charging method as described in claim 5.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions that, when executed on a computer, cause the computer to perform the on-board charging method of claim 5.

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