Power domain control system, control method and electric vehicle

Abstract

The invention provides a power domain control system and method and an electric vehicle, and is applied to the technical field of vehicles. The power domain control system comprises an EVCC, a power domain controller and a charger which are connected through a communication bus, the EVCC and the power domain controller are integrally packaged on the same circuit board, and the EVCC and the power domain controller share the charger. According to the application, the EVCC and the power domain controller are integrated and packaged on the same circuit board, so that corresponding hardware, circuits, mounting structures and mounting positions in the whole vehicle when the EVCC is used as an independent controller are reduced, the space utilization rate of the whole vehicle is improved, the cost of the whole vehicle is reduced, and meanwhile, the charging machine is shared by the EVCC and the power domain controller, so that the charging efficiency is improved. The space utilization rate of the whole vehicle is improved; and integration is realized.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a power domain control system, a control method and an electric vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the Electric Vehicle Communication Controller (EVCC) plays a vital role as a key bridge between electric vehicles and charging piles in new energy vehicles, providing key support for the overseas charging of national standard new energy vehicles. EVCC converts the national standard charging protocol into the European standard charging protocol, enabling national standard new energy vehicles to be directly charged overseas without large-scale changes to the vehicle.

[0003] In the related technology, the EVCC is installed as an independent controller in the vehicle, so that the national standard new energy vehicles can be directly charged overseas. Among them, the EVCC is equipped with independent hardware, circuits and installation structures in the vehicle. However, under this method, there is a problem of low space utilization of the vehicle. Summary of the invention

[0004] The present application provides a power domain control system, a control method and an electric vehicle, which are used to solve the problem of low space utilization of the whole vehicle when the EVCC is installed as an independent controller in the whole vehicle in the related art.

[0005] In a first aspect, the present application provides a power domain control system, including: an EVCC, a power domain controller, and a charger connected via a communication bus, wherein the EVCC and the power domain controller are integrated and packaged on the same circuit board; the EVCC and the power domain controller share the charger.

[0006] In one possible implementation, the charger includes a PP resistance detection circuit and a gun insertion signal detection circuit; the PP resistance detection circuit is used to detect the PP resistance value of the charging pile; the gun insertion signal detection circuit is used to detect whether a charging gun is inserted into the charging pile; wherein the EVCC and the charger share the PP resistance detection circuit and the gun insertion signal detection circuit.

[0007] In a possible implementation, a plurality of DCDC power supplies are further provided on the circuit board, and the plurality of DCDC power supplies are electrically connected to the EVCC to provide electric energy of corresponding voltages to different devices in the EVCC.

[0008] In a possible implementation, the multiple DCDC power supplies include a first DCDC power supply and a second DCDC power supply, and the different devices in the EVCC include multiple wired electrical transceivers, a single-chip microcomputer, and a clock module; wherein the first DCDC power supply is electrically connected to the multiple wired electrical transceivers to provide the multiple wired electrical transceivers with electrical energy of a first voltage; and the second DCDC power supply is electrically connected to the single-chip microcomputer and the clock module to provide the single-chip microcomputer and the clock module with electrical energy of a second voltage.

[0009] In one possible implementation, a battery management system (BMS) is integrated in the power domain controller; the single-chip microcomputer is connected to the BMS through a communication bus to send a charging interaction signal to the BMS, and the charging interaction signal includes a gun insertion signal and a card swiping signal.

[0010] In a possible implementation, the power domain control system further includes: a power supply circuit provided between the power supply device and the DCDC power supply, the power supply circuit including a filter circuit and an anti-reverse connection circuit, and the voltage provided by the power supply device is lower than the voltage provided by the power battery.

[0011] In a possible implementation manner, the circuit board is encapsulated in a housing.

[0012] In a second aspect, the present application provides a control method for a power domain control system, which is applied to the power domain control system provided in the first aspect, and the control method includes: waking up the charger in the power domain control system in response to receiving a plug-in wake-up signal sent by the charging pile; determining whether the current charging current is direct current through the charger; if the current charging current is direct current, waking up the power domain controller in the power domain control system through the charger; waking up the electric vehicle communication controller EVCC in the power domain control system through the power domain controller.

[0013] In a possible implementation, waking up the EVCC in the power domain control system through the power domain controller includes: starting a DCDC power supply in the power domain control system through the power domain controller, and the started DCDC power supply supplies power to the EVCC to wake up the EVCC.

[0014] In a possible implementation, determining whether the current charging current is direct current by the charger includes: obtaining a PP resistance value from the charging pile by the charger; and determining whether the current charging current is direct current by the charger according to the PP resistance value.

[0015] In a third aspect, the present application provides an electric vehicle, comprising an electric vehicle body and a power domain control system as provided in the first aspect above.

[0016] 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 by a processor, they are used to implement the control method of the power domain control system provided in the second aspect.

[0017] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the control method of the power domain control system provided in the second aspect.

[0018] The present application provides a power domain control system, a control method, and an electric vehicle, wherein the power domain control system includes an EVCC, a power domain controller, and a charger connected by a communication bus, wherein the EVCC and the power domain controller are integrated and packaged on the same circuit board, and the EVCC and the power domain controller share the charger. The present application, by integrating and packaging the EVCC and the power domain controller on the same circuit board, reduces the hardware, circuits, mounting structures, and mounting positions corresponding to the EVCC as an independent controller in the vehicle, thereby improving the space utilization of the vehicle and reducing the cost of the vehicle. At the same time, by allowing the EVCC and the power domain controller to share the charger, the space utilization of the vehicle is improved and integration is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 A schematic diagram of the structure of a power domain control system provided in one embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of a power domain control system provided by another embodiment of the present application;

[0022] Figure 3 A schematic flow chart of a control method for a power domain control system provided in one embodiment of the present application.

[0023] 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

[0024] 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.

[0025] For electric vehicles, the charging communication protocol for domestic new energy vehicles is GBT27930, and the European charging communication protocol is IEC61851-24, DIN70121 and ISO15118. Therefore, all types of new energy vehicles exported must be installed with European and American standard charging communication controllers before they can charge the vehicles. In related technologies, by installing EVCC as an independent controller in the whole vehicle, national standard new energy vehicles can be directly charged overseas. Among them, EVCC is equipped with independent hardware, circuits, and installation structures in the whole vehicle. However, under this method, there are problems such as high cost of the whole vehicle and low space utilization of the whole vehicle.

[0026] Based on the problems existing in the related art, the embodiment of the present application integrates the EVCC in the power domain controller, that is, the EVCC and the power domain controller are integrated and packaged on the same circuit board to reduce the corresponding hardware, circuits, installation structures and installation positions in the whole vehicle when the EVCC is an independent controller, thereby improving the space utilization of the whole vehicle and reducing the cost of the whole vehicle. At the same time, by allowing the EVCC and the power domain controller to share the charger, the space utilization of the whole vehicle is improved and integration is achieved.

[0027] Let's first combine Figure 1 , the power domain control system provided in the embodiment of the present application is described in detail.

[0028] Figure 1 This is a schematic diagram of the structure of a power domain control system provided by an embodiment of the present application. Figure 1 As shown, the power domain control system includes an EVCC, a power domain controller and a charger connected via a communication bus, wherein the EVCC and the power domain controller are integrated and packaged on the same circuit board, and the EVCC and the power domain controller share the charger.

[0029] Exemplarily, the power domain controller may be represented as XCU.

[0030] Exemplarily, the charger is connected to the EVCC and the power domain controller via a communication bus, and the EVCC is connected to the power domain controller via a communication bus.

[0031] Exemplarily, the communication bus may be a charging controller area network (Controller Area Network, CAN for short) bus and a propulsion CAN bus, wherein the charging CAN bus may be represented as Charge_CAN bus, and the propulsion CAN bus may be represented as Propulsion_CAN bus.

[0032] Exemplarily, the charger may be an on-board charger (OBC).

[0033] Exemplarily, the charger can be communicatively connected with the power domain controller via a power CAN bus.

[0034] Optionally, the EVCC may include a plurality of wired electric transceivers, and the charger may be communicatively connected with the plurality of wired electric transceivers in the EVCC via a power CAN bus.

[0035] In the embodiment of the present application, the EVCC and the power domain controller are integrated and packaged on the same circuit board to reduce the corresponding hardware, circuits, installation structures and installation position in the vehicle when the EVCC is an independent controller, thereby improving the space utilization of the vehicle, reducing the cost of the vehicle and achieving integration.

[0036] Optionally, the power domain control system provided in the embodiment of the present application may further include a DC to DC DCDC converter, which is used to convert the high voltage electricity of the power battery into a low voltage electricity of 12V.

[0037] Exemplarily, the DCDC converter and the charger are integrated and packaged on the same circuit board, and the circuit board and the circuit board that integrates and packages the EVCC and the power domain controller are different circuit boards.

[0038] Exemplarily, a circuit board that integrates and packages the EVCC and the power domain controller and a circuit board that integrates and packages the DCDC converter and the charger can be arranged in different cavities of the same housing.

[0039] Optionally, the charger includes a PP resistance detection circuit and a gun insertion signal detection circuit, wherein the PP resistance detection circuit is used to detect the PP resistance value of the charging pile; the gun insertion signal detection circuit is used to detect whether a charging gun is inserted into the charging pile;

[0040] Among them, EVCC and charger share the PP resistance detection circuit and the gun plug signal detection circuit.

[0041] It can be understood that, compared with the related art in which EVCC is installed as an independent controller in the whole vehicle, it is necessary to set up an independent PP resistance detection circuit and a gun plug signal detection circuit for EVCC. In the power domain control system provided in the embodiment of the present application, through integrated processing, EVCC and the charger share the PP resistance detection circuit and the gun plug signal detection circuit. By reducing the PP resistance detection circuit and the gun plug signal detection circuit, the space utilization rate of the whole vehicle can be improved, and at the same time, the cost of the whole vehicle can be reduced.

[0042] Optionally, a plurality of DCDC power supplies are also provided on the circuit board that integrates and packages the EVCC and the power domain controller. The plurality of DCDC power supplies are electrically connected to the EVCC to provide electric energy of corresponding voltages to different devices in the EVCC.

[0043] Exemplarily, the DCDC power supply can also be described as a DCDC conversion circuit or a DCDC power chip. The DCDC power supply steps down the low voltage electricity output by the vehicle's low-voltage battery, i.e., the storage battery, and uses the stepped-down output voltage to provide electric energy of corresponding voltage to different devices in the EVCC.

[0044] Exemplarily, the low voltage electricity such as 12V output by the low voltage battery of the whole vehicle is input into multiple DCDC power supplies, one of which steps down the 12V voltage and converts it into 5V voltage, and the other DCDC power supply steps down the 12V power supply and converts it into 3.3V voltage.

[0045] The above voltage conversion is only an example. The specific voltage output by the DCDC power supply can be determined according to actual application requirements, and this application does not limit this.

[0046] It can be understood that in the power domain control system provided in the embodiment of the present application, the EVCC and the power domain controller share multiple DCDC power supplies.

[0047] Optionally, the multiple DCDC power supplies include a first DCDC power supply and a second DCDC power supply, and the different devices in the EVCC include multiple wired electrical transceivers, a single-chip microcomputer and a clock module; wherein the first DCDC power supply is electrically connected to the multiple wired electrical transceivers to provide the multiple wired electrical transceivers with electrical energy of a first voltage; the second DCDC power supply is electrically connected to the single-chip microcomputer and the clock module to provide the single-chip microcomputer and the clock module with electrical energy of a second voltage.

[0048] For example, the first voltage may be 5 V, and the second voltage may be 3.3 V. The voltage values ​​of the first voltage and the second voltage are not limited in the embodiment of the present application, and they can be determined according to actual application requirements.

[0049] Optionally, the EVCC may further include a fast charging protocol conversion module, which is used to convert the charging protocol during the charging process, such as converting the national standard charging protocol into the European standard charging protocol, or converting the European standard charging protocol into the national standard charging protocol.

[0050] Optionally, a BMS is integrated in the power domain controller; the single chip microcomputer is connected to the BMS via a communication bus to send a charging interaction signal to the BMS, wherein the charging interaction signal includes a gun insertion signal and a card swiping signal.

[0051] Exemplarily, the single chip microcomputer sends a charging interaction signal to the BMS via the charging CAN bus.

[0052] Exemplarily, the gun insertion signal can be represented as a CC2 signal, and the card swiping signal can be represented as an A+ signal.

[0053] Exemplarily, the gun insertion signal and the card swiping signal may be a gun insertion signal and a card swiping signal output by a single-chip microcomputer to simulate a domestic charging pile.

[0054] It can be understood that the plug-in signal is a signal used to confirm whether the charging gun is correctly inserted into the charging pile. That is, when the charging gun is inserted into the charging pile, the plug-in signal will be activated to confirm the connection relationship between the charging gun and the charging pile. The card swipe signal is used to wake up the BMS controller to start the charging process.

[0055] Optionally, the power domain control system provided in the embodiment of the present application also includes a power supply circuit arranged between the power supply device and the DCDC power supply, the power supply circuit includes a filter circuit and an anti-reverse connection circuit, and the voltage provided by the power supply device is lower than the voltage provided by the power battery.

[0056] For example, the power supply device may be a low-voltage battery of an electric vehicle, that is, a storage battery. The voltage output by the power supply device may be 12V.

[0057] For example, KL30 may be used to represent the positive electrode of the battery, and KL31 may be used to represent the negative electrode of the battery.

[0058] Exemplarily, the voltage provided by the power battery may be 400V.

[0059] Exemplarily, the filtering circuit is used to ensure the electromagnetic compatibility (EMC) of electronic devices in the power domain control system provided in the embodiment of the present application, such as the power domain controller, the EVCC controller, etc., during operation.

[0060] It should be noted that in the power domain control system provided in the embodiment of the present application, the EVCC and the power domain controller share a power supply circuit, thereby improving the space utilization efficiency of the entire vehicle while reducing the cost of the entire vehicle.

[0061] Optionally, in the power domain control system provided in the embodiment of the present application, a circuit board integrated with the EVCC and the power domain controller is encapsulated in a housing.

[0062] It can be understood that by encapsulating the circuit board in the housing, that is, arranging the wiring between the EVCC and the power domain controller in the housing, additional interference introduced by the wiring arrangement outside can be avoided, thereby improving the reliability of the equipment.

[0063] In summary, the following combination Figure 2 The power domain control system provided in the embodiment of the present application is described in detail.

[0064] Figure 2 This is a schematic diagram of the structure of a power domain control system provided by another embodiment of the present application. Figure 2 As shown, the power domain control system provided in the embodiment of the present application includes an EVCC and a power domain controller (XCU) integrated and packaged on the same circuit board, a charger, multiple DCDC power supplies arranged on the same circuit board, a power supply device and a power supply circuit.

[0065] Among them, EVCC includes multiple wired electric transceivers, a single-chip microcomputer, a fast charging protocol conversion module and a clock module; the BMS is integrated in the power domain controller; the charger includes a PP resistance detection circuit and a gun plug signal detection circuit; the power supply circuit includes a filter circuit and an anti-reverse connection circuit.

[0066] Exemplarily, the EVCC is communicatively connected to the power domain controller via a power CAN bus and a charging CAN bus; a wired electric transceiver in the EVCC is communicatively connected to the charger via the power CAN bus, and another wired electric transceiver is communicatively connected to the power domain controller via the charging CAN bus; the EVCC is electrically connected to multiple DCDC power supplies.

[0067] Exemplarily, the EVCC and the charger share a PP resistance detection circuit and a gun plug signal detection circuit; the EVCC and the power domain controller share a power supply circuit and multiple DCDC power supplies.

[0068] Exemplarily, one of the multiple DCDC power supplies is used to provide power of a first voltage to multiple wired transceivers in the EVCC; another DCDC power supply is used to provide power of a second voltage to the microcontroller and the clock module in the EVCC.

[0069] It should be noted that in the power domain control system provided in the embodiment of the present application, the EVCC and the power domain controller are installed on the same circuit board, and the charger is installed on another circuit board. The circuit board including the EVCC and the power domain controller and the circuit board including the charger can be packaged in the same housing.

[0070] The power domain control system provided in the embodiment of the present application, on the one hand, by integrating EVCC into the power domain controller, that is, integrating EVCC into the control circuit board of the power domain controller, it is possible to save the metal shell, wiring harness, bracket, low-voltage connector, etc. of EVCC, reduce the cost of the whole vehicle, and at the same time improve the space utilization of the whole vehicle by reducing the corresponding hardware, circuit, installation structure and installation position in the whole vehicle when EVCC is an independent controller; on the other hand, by sharing the PP resistance detection circuit and the gun plug signal detection circuit with the charger, it is possible to save the interface of the PP resistance and the gun plug signal on the basis of setting up the EVCC separately, and reduce the PP resistance and the gun plug signal detection circuit, thereby reducing the cost of the whole vehicle; on the other hand, when the EVCC controller is integrated into the power domain controller, the control schematic diagram corresponding to the control circuit board is redesigned to achieve complete module integration, further realizing cost reduction, integration and platformization.

[0071] Based on the above embodiment, the power domain control system provided in the above embodiment is used as the execution body, and combined with Figure 3 The control method of the power domain control system provided in the embodiment of the present application is described in detail.

[0072] Figure 3 This is a flow chart of a control method for a power domain control system provided by an embodiment of the present application. Figure 3 As shown, the specific implementation of the control method of the power domain control system may include the following steps:

[0073] S301, in response to receiving a plug-in wake-up signal sent by the charging pile, waking up the charger in the power domain control system.

[0074] Exemplarily, after the charging gun in the vehicle is inserted into the charging pile, that is, after the charging gun and the charging pile are connected, the charging interface in the charging gun will receive a gun insertion wake-up signal sent by the charging pile.

[0075] Exemplarily, the plug-in wake-up signal may be one of the CP protocol signals sent by the charging pile.

[0076] Exemplarily, the charger in the power domain control system can be awakened by the gun plug wake-up signal.

[0077] It is understandable that when the charging gun is not connected to the charging pile, the charger can be in a dormant state, and the required electrical energy is provided by the low-voltage battery in the vehicle, that is, the battery of the electric vehicle.

[0078] S302, determining whether the current charging current is direct current through the charger.

[0079] It should be noted that the charging protocol supported by the EVCC provided in the embodiment of the present application is a fast charging protocol, that is, the corresponding charging current is direct current.

[0080] S303: If the current charging current is direct current, the power domain controller in the power domain control system is awakened by the charger.

[0081] Exemplarily, the charger and the power domain controller are communicatively connected via a communication bus such as a power CAN bus.

[0082] In a possible implementation, the charger wakes up the power domain controller through the network, namely the power CAN bus.

[0083] S304, waking up the EVCC in the power domain control system through the power domain controller.

[0084] In a possible implementation, the power domain controller wakes up the EVCC in the power domain control system through a hard line.

[0085] It can be understood that the EVCC in the power domain control system provided in the embodiment of the present application is electrically connected to the DCDC power supply of the power domain controller.

[0086] Exemplarily, the power domain controller may wake up the EVCC by controlling the DCDC power supply.

[0087] It should be noted that the EVCC in the power domain control system provided in the embodiment of the present application can be awakened by power supply, that is, when the EVCC receives the electric energy provided by the DCDC power supply, the EVCC is awakened.

[0088] In the embodiment of the present application, in response to receiving a plug-in wake-up signal sent by the charging pile, the charger in the power domain control system is woken up, and the charger is used to determine whether the current charging current is direct current. When the current charging current is direct current, the charger is further used to wake up the power domain controller in the power domain control system, and then the power domain controller is used to wake up the EVCC in the power domain control system, thereby realizing automatic wake-up of the EVCC in the power domain control system provided in the embodiment of the present application.

[0089] Optionally, a possible implementation of waking up the EVCC in the power domain control system through the power domain controller in step S304 may be: starting a DCDC power supply in the power domain control system through the power domain controller, and the started DCDC power supply supplies power to the EVCC to wake up the EVCC.

[0090] It should be noted that the power domain controller in the power domain control system provided in the embodiment of the present application is provided with electric energy after being awakened by the low-voltage battery of the entire vehicle, that is, the battery of the electric vehicle.

[0091] Exemplarily, after the power domain controller wakes up, the power domain controller may control to start the DCDC power supply, so that the DCDC power supply supplies power to the EVCC after starting, thereby waking up the EVCC.

[0092] Exemplarily, the DCDC power supply in the power domain control system may be multiple DCDC power supplies.

[0093] Exemplarily, one of the multiple DCDC power supplies may power a wired transceiver in the EVCC; another DCDC power supply may power a single-chip microcomputer and a clock module in the EVCC.

[0094] It can be understood that in the power domain control system provided in the embodiment of the present application, the EVCC shares the DCDC power supply of the power domain controller. Therefore, in the control method of the power domain control system provided in the embodiment of the present application, when waking up the EVCC, only by waking up the power domain controller first, so that the power domain controller controls the start of the DCDC power supply, and after the DCDC power supply is started, the EVCC is powered by the DCDC power supply, so that the EVCC can be woken up.

[0095] Optionally, a possible implementation method of determining whether the current charging current is direct current by the charger in step S302 may be: obtaining a PP resistance value from the charging pile by the charger; and determining whether the current charging current is direct current according to the PP resistance value by the charger.

[0096] In some embodiments, when the PP resistance value is greater than a preset threshold, it is determined that the current charging current is direct current; when the PP resistance value is less than or equal to the preset threshold, it is determined that the current charging current is alternating current.

[0097] In some embodiments, when the PP resistance value is greater than a preset threshold, it is determined that the current charging current is alternating current; when the PP resistance value is less than or equal to the preset threshold, it is determined that the current charging current is direct current.

[0098] The embodiment of the present application does not limit the size of the preset threshold, which can be determined according to actual application requirements.

[0099] Optionally, in the control method of the power domain control system provided in the embodiment of the present application, after the power domain controller wakes up the EVCC through a hard line, it may also include: the EVCC receives the CP protocol sent by the charging pile, and performs charging protocol conversion according to the CP protocol to obtain a target charging protocol; based on the target charging protocol, the EVCC performs charging protocol interaction with the BMS integrated in the power domain controller, wherein the charging interaction signal in the charging protocol interaction may include a gun plug signal and a card swiping signal, etc.

[0100] Exemplarily, the target charging protocol may be a direct current charging protocol.

[0101] Exemplarily, the fast charging protocol conversion module in the EVCC converts the charging protocol according to actual application requirements, and through the interaction between the fast charging protocol conversion module and the single-chip microcomputer in the EVCC, the single-chip microcomputer interacts with the BMS integrated in the power domain controller to perform charging protocol interaction.

[0102] An embodiment of the present application also provides a computer program product, including a computer program, which implements the above-mentioned control method of the power domain control system when executed by a processor.

[0103] An embodiment of 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 control method of the power domain control system described above is implemented.

[0104] 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 storage, 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0110] 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.

[0111] 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 power domain control system, characterized in that: include: Electric vehicle communication controller EVCC, power domain controller and charger connected via communication bus; Wherein, the EVCC and the power domain controller are integrated and packaged on the same circuit board; The EVCC and the power domain controller share the charger.

2. The power domain control system according to claim 1, characterized in that: The charger includes a PP resistance detection circuit and a gun insertion signal detection circuit; the PP resistance detection circuit is used to detect the PP resistance value of the charging pile; the gun insertion signal detection circuit is used to detect whether a charging gun is inserted into the charging pile; The EVCC and the charger share the PP resistance detection circuit and the gun plug signal detection circuit.

3. The power domain control system according to claim 1, characterized in that: The circuit board is also provided with a plurality of DCDC power supplies, which are electrically connected to the EVCC to provide electric energy of corresponding voltages to different devices in the EVCC.

4. The power domain control system according to claim 3, characterized in that: The multiple DCDC power supplies include a first DCDC power supply and a second DCDC power supply, and the different devices in the EVCC include multiple wired electric transceivers, a single chip microcomputer and a clock module; Wherein, the first DCDC power supply is electrically connected to the plurality of wired electrical transceivers to provide electrical energy of a first voltage to the plurality of wired electrical transceivers; The second DCDC power supply is electrically connected to the single-chip microcomputer and the clock module to provide electric energy of a second voltage to the single-chip microcomputer and the clock module.

5. The power domain control system according to claim 4, characterized in that: The power domain controller is integrated with a battery management system BMS; The single chip microcomputer is connected to the BMS via a communication bus to send a charging interaction signal to the BMS, wherein the charging interaction signal includes a gun insertion signal and a card swiping signal.

6. The power domain control system according to any one of claims 1 to 5, characterized in that: Also includes: A power supply circuit is arranged between the power supply device and the DCDC power supply, the power supply circuit includes a filter circuit and an anti-reverse connection circuit, and the voltage provided by the power supply device is lower than the voltage provided by the power battery.

7. The power domain control system according to any one of claims 1 to 5, characterized in that: The circuit board is packaged in the housing.

8. A control method for a power domain control system, characterized in that: Applied to a power domain control system according to any one of claims 1 to 7, the control method comprises: In response to receiving a plug-in wake-up signal sent by the charging pile, waking up the charger in the power domain control system; Determining whether the current charging current is direct current by the charger; If the current charging current is direct current, waking up the power domain controller in the power domain control system through the charger; The electric vehicle communication controller EVCC in the power domain control system is awakened by the power domain controller.

9. The control method according to claim 8, characterized in that: The waking up the EVCC in the power domain control system by the power domain controller includes: The power domain controller controls the DCDC power supply in the power domain control system to start, and the started DCDC power supply supplies power to the EVCC to wake up the EVCC.

10. The control method according to claim 8 or 9, characterized in that: The determining whether the current charging current is direct current by the charger comprises: Obtaining a PP resistance value from the charging pile by the charger; The charger determines whether the current charging current is direct current according to the PP resistance value.

11. An electric vehicle, characterized in that: The invention comprises an electric vehicle body and a power domain control system as claimed in any one of claims 1 to 7.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 8 to 10 when executed by a processor.

13. A computer program product, characterized in that include: A computer program, which, when executed by a processor, implements the method according to any one of claims 8 to 10.

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