Vehicle control device and system and vehicle

Abstract

The embodiment of the invention provides a vehicle control device and system and a vehicle, and relates to the technical field of vehicles. The vehicle control device at least comprises an alternating current-direct current converter, a first control module, a second control module and a power battery module, wherein the first control module is connected with the AC / DC converter and the power battery module through a target relay to form a current conversion loop; and the second control module is connected with the AC / DC converter and the power battery module to form a motor driving loop. The device can realize decoupling of the power supply module and the electric drive module through the target relay, so that the power supply module and the electric drive module share a part of power tubes, the number of power devices is reduced, and the hardware cost is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle control device, system, and vehicle. Background Technology

[0002] In the field of electric and hybrid vehicles, the electric drive module and the power module are core components. The electric drive module converts battery energy into mechanical energy to drive the vehicle; the power module is responsible for charging the vehicle, converting battery energy, and discharging it to external devices.

[0003] Currently, electric drive modules and power supply modules in vehicles are usually designed separately, that is, the electric drive module and the power supply module are packaged independently.

[0004] This leads to the use of more power transistors in vehicles, and also causes the problem of redundant configuration of hardware such as housings, heat dissipation structures, and film capacitors. This not only increases the overall cost of the vehicle, but also increases the weight and size of the vehicle, thus affecting the performance of the vehicle. Summary of the Invention

[0005] This application provides a vehicle control device, system, and vehicle that can decouple the power module and the electric drive module through a target relay, thereby allowing the power module and the electric drive module to share some power transistors, reducing the number of power devices and lowering hardware costs.

[0006] In a first aspect, embodiments of this application provide a vehicle control device, the device comprising at least: an AC / DC converter, a first control module, a second control module, and a power battery module; wherein,

[0007] The first control module is connected to the AC / DC converter and the power battery module via the target relay to form a current conversion circuit;

[0008] The second control module is connected to the AC / DC converter and the power battery module to form a motor drive circuit.

[0009] In one possible implementation, the AC / DC converter includes an inductor module and a switching transistor module;

[0010] One end of the first control module is connected to the neutral point of the inductor module via the target relay, and then connected to one end of the power battery module via the switching transistor module; the other end of the first control module is connected to the other end of the power battery module to form the current conversion circuit.

[0011] The second control module, after being connected to the neutral point of the inductor module, obtains the motor drive circuit by connecting the switch module and the power battery module.

[0012] In one possible implementation, the current conversion circuit indicates the on-board charger circuit; the first control module includes at least an AC-DC converter and a transformer;

[0013] The AC-DC converter is the primary side of the transformer;

[0014] One end of the secondary side of the transformer is connected to the neutral point of the inductor module via the target relay; the other end of the secondary side of the transformer is connected to the other end of the power battery module to form the on-board charger circuit.

[0015] In one possible implementation, the power battery module includes a power battery and a capacitor module; the capacitor module is connected in parallel with the power battery; the capacitor module includes a series capacitor.

[0016] The other end of the secondary side of the transformer is connected to the midpoint of the series capacitor.

[0017] In one possible implementation, the current conversion circuit indicates an integrated circuit of the on-board charger and the DC-DC converter; the integrated circuit of the on-board charger and the DC-DC converter includes the on-board charger circuit and the DC-DC converter circuit; the first control module further includes a rectifier and an inverter;

[0018] The rectifier is the secondary side of the transformer;

[0019] The inverter is the primary side of the transformer; after the inverter is connected in parallel with the switching transistor module, it is connected to the power battery module to obtain the DC-DC converter circuit.

[0020] In one possible implementation, the motor drive circuit indicates a motor driver; the second control module includes at least a drive motor;

[0021] The drive motor is connected to the AC / DC converter and the power battery module to form the motor driver.

[0022] In one possible implementation, when the target relay is closed, the current conversion circuit is turned on; when the target relay is opened, the current conversion circuit is turned off, and the motor drive circuit is turned on.

[0023] In a second aspect, this application provides a vehicle control system, the system comprising the vehicle control device and controller as described in any one of the first aspects;

[0024] The controller is used to acquire the current operating condition information of the vehicle; if the current operating condition information is determined to be a first operating condition, the controller controls the target relay to close and conducts the current conversion circuit; if the current operating condition information is determined to be a second operating condition, the controller controls the target relay to open and conducts the motor drive circuit.

[0025] In one possible implementation, the first operating condition indicates at least a charging operating condition and a discharging operating condition; the second operating condition indicates at least a driving operating condition.

[0026] Thirdly, this application provides a vehicle that includes the vehicle control system described in any one of the second aspects.

[0027] Fourthly, embodiments of this application provide a controller, including: a memory and a processor;

[0028] The memory stores computer-executed instructions;

[0029] The processor executes computer execution instructions stored in the memory, causing the processor to acquire the current operating condition information of the vehicle; if the current operating condition information is determined to be a first operating condition, the processor controls the target relay to close, thereby connecting the current conversion circuit; if the current operating condition information is determined to be a second operating condition, the processor controls the target relay to open, thereby connecting the motor drive circuit.

[0030] The vehicle control device, system, and vehicle provided in this application embodiment enable a first control module to be connected to an AC / DC converter and a power battery module via a target relay to form a current conversion circuit; simultaneously, a second control module can be connected to the AC / DC converter and the power battery module to form a motor drive circuit. This implementation allows for deep integration of the first and second control modules by sharing the AC / DC converter, thereby reducing redundancy in power devices, saving power devices, and ultimately lowering the overall vehicle hardware cost. Furthermore, this deep integration also allows for the reuse of components such as housings and film capacitors, improving hardware resource utilization, reducing overall vehicle size, and contributing to lightweight vehicle design. On the other hand, this implementation allows for dynamic decoupling of the current conversion circuit and the motor drive circuit based on the target relay between the first control module and the AC / DC converter. This simplifies the switching methods between different circuits without using a large number of high-power relays, thus meeting the need for rapid circuit switching under different operating conditions, and providing a low-cost, high-reliability, and highly integrated vehicle control device. Attached Figure Description

[0031] 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.

[0032] Figure 1 A schematic diagram of the structure of a vehicle control device provided in this application embodiment. Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the structure of an AC / DC converter provided in an embodiment of this application;

[0034] Figure 3 This application provides a schematic diagram of the structure of an integrated module for a vehicle charger and a DC-DC converter, as shown in an embodiment of the present application.

[0035] Figure 4 A schematic diagram of the structure of a vehicle control device provided in this application embodiment. Figure 2 ;

[0036] Figure 5 This is a schematic diagram of the structure of a vehicle control system provided in an embodiment of this application;

[0037] Figure 6 A schematic diagram of the implementation process of a vehicle control device under charging conditions provided in this application embodiment. Figure 1 ;

[0038] Figure 7 A schematic diagram of the implementation process of a vehicle control device under charging conditions provided in this application embodiment. Figure 2 ;

[0039] Figure 8 A schematic diagram of the implementation process of a vehicle control device under discharge conditions provided in this application embodiment. Figure 1 ;

[0040] Figure 9 A schematic diagram of the implementation process of a vehicle control device under discharge conditions provided in this application embodiment. Figure 2 ;

[0041] Figure 10 This application provides a schematic diagram of the implementation process of a vehicle control device under driving conditions.

[0042] Figure 11 This is a schematic diagram of the structure of a controller provided in an embodiment of this application.

[0043] 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

[0044] 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.

[0045] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0046] First, the terms used in this application will be explained.

[0047] OBC: On-Board Charger;

[0048] DCDC: DC-DC Converter;

[0049] MCU: Motor Controller Unit;

[0050] V2L: Vehicle-to-Load;

[0051] LLC resonant circuit: also known as LLC resonant converter, is composed of an inductor (L), an inductor (L), and a capacitor (C).

[0052] AC: Alternating Current;

[0053] LV: Low Voltage;

[0054] HV: High Voltage.

[0055] In the field of electric and hybrid vehicles, the electric drive module and power supply module are core components. The electric drive module mainly consists of a motor controller and a motor. The motor controller converts the direct current (DC) from the battery into alternating current (AC) to power the motor, thus converting battery energy into mechanical energy to drive the vehicle. The power supply module mainly includes an on-board battery (OBC) module and a DC-DC converter (DCDC) module, used for vehicle charging, battery energy conversion, and external discharge (e.g., vehicle-to-everything (V2L)).

[0056] Currently, the electric drive module and power supply module in vehicles are usually designed separately, meaning they are packaged independently. This results in the use of a large number of power transistors in vehicles, and also leads to redundant configurations of hardware such as housings, heat dissipation structures, and film capacitors. This not only increases the overall cost of the vehicle but also increases its weight and size, ultimately affecting vehicle performance.

[0057] Therefore, in related technologies, the electric drive module and power supply module can be physically integrated into the same housing / box, optimizing the overall vehicle size and weight by sharing a heat dissipation structure and reducing cable length. However, this implementation still requires the use of a relatively large number of power transistors in the vehicle, resulting in a still high overall vehicle cost.

[0058] Research has revealed significant spatiotemporal differences in the operation of the electric drive module and the power supply module in practical applications. For example, vehicle driving conditions (electric drive module operation) and charging conditions (power supply module operation) typically do not occur simultaneously, and V2L discharge functionality is only activated in specific scenarios. Therefore, this non-overlapping operational characteristic provides a technological possibility for the deep integration of the electric drive module and the power supply module.

[0059] For example, the LLC resonant circuit of the OBC can share some power devices with the inverter of the motor controller, but this is limited by differences in control logic and circuit topology compatibility. This implementation typically requires configuring more additional high-power contactors or switching switches to achieve circuit switching under different operating conditions. For instance, high-power contactors are needed to disconnect the three-phase lines of the motor driver to achieve circuit switching under different operating conditions. However, high-power contactors or switching switches are expensive. Therefore, this implementation not only requires high hardware costs but also increases system complexity, and is prone to affecting the reliability and accuracy of vehicle control due to frequent contactor operation.

[0060] Based on this, this application provides a vehicle control device that can use the motor controller (i.e., the AC / DC converter in this application) as the secondary rectifier bridge of the LLC resonant circuit of the OBC / DCDC, and achieve the reuse of its power devices when the power module is running by controlling the low-power relays, and achieve the decoupling of the electric drive module and the power module when the electric drive module is running, thereby achieving deep integration of the power module and the electric drive module, and thus significantly reducing the redundancy of power devices without increasing hardware complexity.

[0061] 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.

[0062] Figure 1 A schematic diagram of the structure of a vehicle control device provided in this application embodiment. Figure 1 ,like Figure 1 As shown, the device includes at least: an AC / DC converter 101, a first control module 102, a second control module 103, and a power battery module 104.

[0063] The first control module 102 is connected to the AC / DC converter 101 and the power battery module 104 via the target relay 105, forming a current conversion circuit.

[0064] In one example, the current conversion circuit can be used to convert alternating current to direct current, thereby enabling the power battery module 104 to be charged according to an external power source (e.g., mains power); or, it can be used to convert direct current to alternating current (or direct current) to power a load (e.g., a vehicle-end load or an external load) according to the power battery module 104.

[0065] The second control module 103 is connected to the AC / DC converter 101 and the power battery module 104 to form a motor drive circuit.

[0066] In one example, the motor drive circuit is used to convert the DC power from the power battery module 104 into AC power to drive the motor, thereby controlling the vehicle's movement.

[0067] In the above embodiments, the first and second control modules can be deeply integrated by sharing an AC / DC converter. This reduces redundancy in power devices, saves power components, and lowers the overall vehicle hardware cost. Furthermore, this deep integration allows for the reuse of components such as housings and film capacitors, improving hardware resource utilization, reducing overall vehicle size, and aiding in lightweight vehicle design. On the other hand, the above embodiments can achieve dynamic decoupling of the current conversion circuit and the motor drive circuit based on the target relay between the first control module and the AC / DC converter. This simplifies the switching methods between different circuits without using numerous high-power relays, meeting the need for rapid circuit switching under different operating conditions, and providing a low-cost, highly reliable, and highly integrated vehicle control device.

[0068] In one possible implementation, Figure 2 This is a schematic diagram of the structure of an AC / DC converter provided in an embodiment of this application, as shown below. Figure 2 As shown, the AC / DC converter includes an inductor module and a switching transistor module.

[0069] Specifically, such as Figure 2 As shown, the inductor module includes three inductors, L1, L2, and L3. The switching module includes three bridge arms, with a total of six switching transistors, as shown. Figure 2 Q1 to Q6 are shown. At this point, the switching module can be connected to the high-voltage side, such as... Figure 2 The capacitor C1 terminal is shown.

[0070] exist Figure 2 Based on the AC / DC converter shown, Figure 1 In this embodiment, one end of the first control module can be connected to the neutral point of the inductor module via a target relay, and then connected to one end of the power battery module via a switching transistor module. The other end of the first control module is connected to the other end of the power battery module to form a current conversion circuit.

[0071] At this point, capacitor C1 can be understood as the membrane capacitor of the power battery module.

[0072] exist Figure 2 Based on the AC / DC converter shown, Figure 1 In this embodiment, the second control module is connected to the neutral point of the inductor module, and the motor drive circuit is obtained by connecting the switch module and the power battery module.

[0073] In the above embodiments, a neutral-point mini-relay can be constructed by connecting the target relay to the neutral point of the inductor module. In this case, based on the mutual exclusion of operating conditions and the physical isolation characteristics of the mechanical switch, the target relay can be disconnected, thereby switching between the current conversion circuit and the motor drive circuit. This improves system stability and safety during vehicle operation and avoids issues of action delay and reliability compared to traditional contactors. Simultaneously, the low power consumption of the neutral-point mini-relay reduces system response time and improves control accuracy. Furthermore, this neutral-point decoupling method avoids the risk of energy backflow, ensuring the independent and efficient operation of the current conversion circuit and the motor drive circuit.

[0074] The vehicle control device described above will be explained in detail below based on specific application scenarios.

[0075] For example, the vehicle control device provided in this application embodiment can indicate the deep integration of a power module and an electric drive module in a vehicle. The power module can be an on-board charger, or an integrated module combining an on-board charger and a DC-DC converter; the electric drive module can be a motor driver.

[0076] For example, if the current conversion circuit indicates the on-board charger circuit, then the first control module includes at least an AC-DC converter and a transformer.

[0077] At this point, the AC-DC converter is the primary side of the transformer; one end of the secondary side of the transformer is connected to the neutral point of the inductor module via the target relay; the other end of the secondary side of the transformer is connected to the other end of the power battery module to obtain the on-board charger circuit.

[0078] For example, if the on-board charger and DC-DC converter integrated circuit indicated by the current conversion circuit, then the on-board charger and DC-DC converter integrated circuit includes the on-board charger circuit and the DC-DC converter circuit. In this case, the first control module also includes a rectifier and an inverter. The rectifier is the secondary side of the transformer.

[0079] Based on this, the inverter can be the primary side of the transformer, which is based on the above-mentioned on-board charger circuit. After the inverter is connected in parallel with the switching transistor module, it is connected to the power battery module to obtain the DC-DC converter circuit.

[0080] See Figure 3 , Figure 3 This is a schematic diagram of the structure of an integrated module of on-board charger and DC-DC converter provided in an embodiment of this application.

[0081] like Figure 3As shown, the on-board charger and the DC-DC converter share a transformer T. The on-board charger requires 12 power transistors, Q7 to Q18, while the DC-DC converter requires 7 power transistors, Q19 to Q25.

[0082] At this time, in the vehicle control device provided according to the embodiments of this application, which integrates an on-board charger and a DC-DC converter integrated module, as well as an electric drive module, the on-board charger and the DC-DC converter integrated module can be shared with the electric drive module. Figure 2 The AC / DC converter shown saves power transistors and achieves deep integration.

[0083] For details, please refer to [link / reference]. Figure 4 As shown, Figure 4 A schematic diagram of the structure of a vehicle control device provided in this application embodiment. Figure 2 ,like Figure 4 As shown, in Figures 1 to 3 Based on the embodiment, the first control module in the vehicle control device includes: an AC-DC converter, a transformer, a rectifier, and an inverter.

[0084] Among them, the AC-DC converter consists of Figure 4 The AC terminal, L4, Q7 to Q14, C2, C3, and L5 are shown. In this configuration, the AC-DC converter serves as the primary winding of transformer T in the on-board charger circuit. One end of the secondary winding of transformer T in the on-board charger circuit is connected to an inductor module (such as...). Figure 4 The neutral point of L1, L2 and L3 (as shown); the other end of the secondary side of transformer T is connected to the power battery module via L6.

[0085] The rectifier is made of Figure 4 The LV terminal, Q23 to Q25, C6 and L7 shown constitute the secondary side of transformer T in the DC-DC converter circuit.

[0086] Inverter is made of Figure 4 The inverter is configured as shown by Q19 to Q22 and the LV terminal. In this case, the inverter is the primary side of transformer T in the DC-DC converter circuit.

[0087] Furthermore, in order to save space occupied by the components, the inverter and the switching transistor module can be connected in parallel and then connected to the power battery module to obtain a DC-DC converter circuit.

[0088] As can be seen from the above description, the electric drive power supply integration solution provided in this application embodiment can integrate the AC / DC converter of the electric drive module into the secondary side of the transformer of the power module and use it as a rectifier bridge, thereby reducing the number of driver chips corresponding to the four power transistors, thus reducing the hardware cost and overall vehicle weight of the vehicle.

[0089] In one possible implementation, such as Figure 4 As shown, the power battery module may include a power battery and a capacitor module, with the capacitor module connected in parallel with the power battery.

[0090] like Figure 4 As shown, the capacitor module can include series capacitors and non-series capacitors; for example, the series capacitor is... Figure 4 The capacitors C7 and C8 shown are non-series capacitors. Figure 4 C9 is shown.

[0091] Based on this, when the other end of the secondary side of the transformer T in the above-mentioned on-board charger circuit is connected to the midpoint of the series capacitor, it can be connected to the power battery module.

[0092] This implementation method can meet the charging requirements of the AC power supply to the power battery by connecting capacitors in series.

[0093] In one possible implementation, the aforementioned motor drive circuit can indicate a motor driver, in which case the second control module includes at least a drive motor.

[0094] At this point, the drive motor is connected to the AC / DC converter and the power battery module to form a motor driver.

[0095] In this implementation, the drive motor can be connected to an AC / DC converter and a power battery module to convert the DC power in the power battery module into AC power used by the drive motor, thereby starting the drive motor and controlling the vehicle's movement.

[0096] In one possible implementation, in the vehicle control device described in any of the above embodiments, after the target relay is closed, the current conversion circuit is turned on; after the target relay is opened, the current conversion circuit is turned off, and the motor drive circuit is turned on.

[0097] At this point, the current conversion circuit and the motor drive circuit can be decoupled when the target relay is disconnected, thereby ensuring the accurate and independent operation of the current conversion circuit and the motor drive circuit, thus improving the vehicle control precision.

[0098] The application scenarios of the vehicle control device provided in the embodiments of this application are described in detail below.

[0099] See Figure 5 , Figure 5 This is a schematic diagram of the structure of a vehicle control system provided in an embodiment of this application, such as... Figure 5 As shown, the vehicle control system includes the aforementioned vehicle control device and controller.

[0100] The controller is used to acquire the current operating condition information of the vehicle. If the current operating condition is determined to be the first operating condition, the controller will close the target relay to conduct the current conversion circuit. If the current operating condition is determined to be the second operating condition, the controller will open the target relay to conduct the motor drive circuit.

[0101] Optionally, the first operating condition indicates at least the charging and discharging operating conditions; the second operating condition indicates at least the driving operating condition.

[0102] The following section will describe the specific implementation of the vehicle control device in light of specific operating conditions.

[0103] During charging, the AC mains power is converted from AC to DC through the AC-DC converter (including the front-end PFC structure and LLC circuit structure) via the AC port, and then used to charge the power battery via the secondary side of the transformer. At this time, depending on the direction of the AC power output from the AC terminal, there are two cases.

[0104] Scenario 1: After AC-DC conversion via the AC port of the AC converter (including the front-end PFC structure and LLC circuit structure), the secondary current flows clockwise to charge the power battery.

[0105] For example, see Figure 6 , Figure 6 A schematic diagram of the implementation process of a vehicle control device under charging conditions provided in this application embodiment. Figure 1 ,like Figure 6 As shown, when the secondary current of transformer T flows clockwise, the secondary current of transformer T charges C7 according to the path indicated by the dashed arrow, thereby charging the power battery.

[0106] Scenario 2: After AC-DC conversion via the AC port and the AC-DC converter (including the front-end PFC structure and LLC circuit structure), the secondary current flows counterclockwise to charge the power battery.

[0107] For example, see Figure 7 , Figure 7 A schematic diagram of the implementation process of a vehicle control device under charging conditions provided in this application embodiment. Figure 2 ,like Figure 7 As shown, when the secondary current of transformer T flows counterclockwise, the secondary current of transformer T charges C8 according to the path indicated by the dashed arrow, thereby charging the power battery.

[0108] Under discharge conditions (e.g., V2L discharge), the power battery is coupled to the primary side of the transformer via the secondary side to discharge to the external load. At this time, based on the direction of current flow on the secondary side of the transformer, there are two possible scenarios.

[0109] Scenario 1: The secondary current of the transformer flows clockwise, coupling with the primary side of the transformer and discharging to the external load.

[0110] For example, see Figure 8 , Figure 8 A schematic diagram of the implementation process of a vehicle control device under discharge conditions provided in this application embodiment. Figure 1 ,like Figure 8 As shown, in the AC / DC converter, switching transistors Q2, Q4, and Q6 are turned on, and C8 discharges externally through Q2, Q4, and Q6. The discharge path can be found in [reference needed]. Figure 8 As shown by the dashed arrow.

[0111] Scenario 2: The secondary current of the transformer flows counterclockwise, coupling with the primary side of the transformer and discharging to the external load.

[0112] For example, see Figure 9 , Figure 9 A schematic diagram of the implementation process of a vehicle control device under discharge conditions provided in this application embodiment. Figure 2 ,like Figure 9 As shown, Q1, Q3, and Q5 in the AC / DC converter are turned on, and C7 discharges to the outside through Q1, Q3, and Q5. The discharge path can be found in [reference needed]. Figure 9 As shown by the dashed arrow.

[0113] Under driving conditions, the target relay can be disconnected to decouple the current conversion circuit and the motor drive circuit.

[0114] See Figure 10 , Figure 10 This application provides a schematic diagram of the implementation process of a vehicle control device under driving conditions, as shown in the embodiments. Figure 10 As shown, after the target relay is disconnected, the DC power in the power battery can be converted into AC power by the AC-DC converter and then output to the drive motor to control the vehicle's movement.

[0115] Figure 11 This is a schematic diagram of the structure of a controller provided in an embodiment of this application. Figure 11 As shown, the controller 110 provided in this embodiment includes at least one processor 1101 and a memory 1102. Optionally, the controller 110 further includes a communication component 1103. The processor 1101, memory 1102, and communication component 1103 are connected via a bus 1104.

[0116] In a specific implementation, at least one processor 1101 executes computer execution instructions stored in memory 1102, causing at least one processor 1101 to perform the following process.

[0117] Obtain the vehicle's current operating status information;

[0118] If the current operating condition is determined to be the first operating condition, then the target relay is closed to activate the current conversion circuit.

[0119] If the current operating condition is determined to be the second operating condition, the target relay is disconnected, and the motor drive circuit is activated.

[0120] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. A general-purpose processor can be a microprocessor or any conventional processor. The process executed by the processor can be directly manifested as execution by the hardware processor, or execution by a combination of hardware and software modules within the processor.

[0121] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0122] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0123] This application also provides a vehicle, the vehicle including... Figure 5 The vehicle control system shown.

[0124] 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 vehicle control device characterized by comprising: The device comprises at least an AC-DC converter, a first control module, a second control module and a power battery module; wherein, The first control module is connected to the AC-DC converter and the power battery module through a target relay, forming a current conversion loop; The second control module is connected to the AC-DC converter and the power battery module, forming a motor driver loop.

2. The vehicle control device according to claim 1, characterized by The AC-DC converter comprises an inductor module and a switch tube module; One end of the first control module is connected to the neutral point of the inductor module through the target relay, and connected to one end of the power battery module through the switch tube module; the other end of the first control module is connected to the other end of the power battery module, forming the current conversion loop; After the second control module is connected to the neutral point of the inductor module, the motor driver loop is formed according to the connection between the switch tube module and the power battery module.

3. The vehicle control device according to claim 2, characterized by The current conversion loop indicates a vehicle charger loop; the first control module comprises at least an AC-DC converter and a transformer; The AC-DC converter is the primary side of the transformer; One end of the secondary side of the transformer is connected to the neutral point of the inductor module through the target relay; the other end of the secondary side of the transformer is connected to the other end of the power battery module, forming the vehicle charger loop.

4. The vehicle control device according to claim 3, characterized by The power battery module comprises a power battery and a capacitor module; the capacitor module is connected in parallel to the power battery; the capacitor module comprises a series capacitor; The other end of the secondary side of the transformer is connected to the series point of the series capacitor.

5. The vehicle control device according to claim 3, characterized by The current conversion loop indicates a vehicle charger and DC-DC converter integrated loop; the vehicle charger and DC-DC converter integrated loop comprises the vehicle charger loop and a DC-DC converter loop; the first control module further comprises a rectifier and an inverter; The rectifier is the secondary side of the transformer; The inverter is the primary side of the transformer; after the inverter is connected in parallel to the switch tube module, the DC-DC converter loop is formed by connecting the inverter to the power battery module.

6. The vehicle control device according to claim 1, characterized by The motor driver loop indicates a motor driver; the second control module comprises at least a driving motor; The driving motor is connected to the AC-DC converter and the power battery module, forming the motor driver.

7. The vehicle control device according to any one of claims 1-6, characterized by, After the target relay is closed, the current conversion loop is turned on; after the target relay is opened, the current conversion loop is turned off, and the motor driver loop is turned on.

8. A vehicle control system characterized by comprising: The system comprises the vehicle control device of any one of claims 1-7 and a controller; The controller is configured to acquire current working condition information of the vehicle; if it is determined that the current working condition information is a first working condition, the target relay is controlled to be closed to turn on the current conversion loop; if it is determined that the current working condition information is a second working condition, the target relay is controlled to be opened to turn on the motor driver loop.

9. The vehicle control system according to claim 8, characterized by The first working condition indicates at least a charging working condition and a discharging working condition; the second working condition indicates at least a driving working condition.

10. A vehicle characterized by comprising: The vehicle includes the vehicle control system of any one of claims 8-9.

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