Power domain control system, control method, and electric vehicle

Abstract

This application provides a power domain control system, control method, and electric vehicle, applicable to the field of vehicle technology. The power domain control system includes an EVCC, a power domain controller, and a charger connected via a communication bus. The EVCC and power domain controller are integrated and packaged on the same circuit board, and share the charger. By integrating the EVCC and power domain controller onto the same circuit board, this application reduces the hardware, circuitry, mounting structure, and installation location of the EVCC within the vehicle compared to its independent controller configuration, thereby improving vehicle space utilization and reducing overall vehicle cost. Furthermore, by sharing the charger with the power domain controller, the application further enhances vehicle space utilization and achieves integration.

Description

Technical Field

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

[0002] With the rapid development of new energy vehicles, the Electric Vehicle Communication Controller (EVCC), as a key bridge between electric vehicles and charging stations, plays a crucial role in new energy vehicles, providing critical support for charging Chinese standard new energy vehicles overseas. The EVCC enables Chinese standard new energy vehicles to be charged directly overseas by converting the Chinese charging protocol to the European charging protocol, without requiring large-scale modifications to the vehicle.

[0003] In related technologies, installing the EVCC as an independent controller within the vehicle enables standard-compliant new energy vehicles to be directly charged overseas. This involves the EVCC having its own independent hardware, circuitry, and mounting structure within the vehicle. However, this approach suffers from low overall vehicle space utilization. Summary of the Invention

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

[0005] In a first aspect, this 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 charging gun signal detection circuit; the PP resistance detection circuit is used to detect the PP resistance value of the charging pile; the charging gun 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 charging gun signal detection circuit.

[0007] In one possible implementation, the circuit board is also equipped with multiple DC-DC power supplies that are electrically connected to the EVCC to provide electrical energy at corresponding voltages to different devices in the EVCC.

[0008] In one possible implementation, the multiple DC-DC power supplies include a first DC-DC power supply and a second DC-DC power supply. The different devices in the EVCC include multiple wired transceivers, a microcontroller, and a clock module. The first DC-DC power supply is electrically connected to the multiple wired transceivers to provide power at a first voltage to the multiple wired transceivers. The second DC-DC power supply is electrically connected to the microcontroller and the clock module to provide power at a second voltage to the microcontroller and the clock module.

[0009] In one possible implementation, the power domain controller integrates a battery management system (BMS); the microcontroller is connected to the BMS via a communication bus to send charging interaction signals to the BMS, which include charging gun insertion signals and card swiping signals.

[0010] In one possible implementation, the power domain control system further includes a power supply loop disposed between the power supply unit and the DC-DC power supply, the power supply loop including a filter circuit and a reverse connection protection circuit, wherein the voltage provided by the power supply unit is less than the voltage provided by the power battery.

[0011] In one possible implementation, the circuit board is encapsulated within a housing.

[0012] Secondly, this application provides a control method for a power domain control system, applied to the power domain control system provided in the first aspect. The control method includes: responding to receiving a charging station's plug-in wake-up signal to wake up the charger in the power domain control system; determining whether the current charging current is DC through the charger; if the current charging current is DC, waking up the power domain controller in the power domain control system through the charger; and waking up the electric vehicle communication controller (EVCC) in the power domain control system through the power domain controller.

[0013] In one possible implementation, waking up the EVCC in the power domain control system via the power domain controller includes: controlling the start of the DC-DC power supply in the power domain control system via the power domain controller, and then the start-up DC-DC power supply supplies power to the EVCC to wake up the EVCC.

[0014] In one possible implementation, determining whether the current charging current is direct current (DC) via the charger includes: obtaining the PP resistance value from the charging pile via the charger; and determining whether the current charging current is DC based on the PP resistance value via the charger.

[0015] Thirdly, this application provides an electric vehicle, including an electric vehicle body and a power domain control system as described in the first aspect above.

[0016] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, are used to implement the control method of the power domain control system as provided in the second aspect.

[0017] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the control method of the power domain control system as provided in the second aspect.

[0018] This application provides a power domain control system, control method, and electric vehicle. The power domain control system includes an EVCC, a power domain controller, and a charger connected via a communication bus. The EVCC and power domain controller are integrated and packaged on the same circuit board, and the EVCC and power domain controller share the charger. This application reduces the hardware, circuitry, mounting structure, and installation location of the EVCC within the vehicle compared to its independent controller configuration, thereby improving vehicle space utilization and reducing overall vehicle cost. Furthermore, by sharing the charger with the power domain controller, the application further enhances vehicle space utilization and achieves integration. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of a power domain control system provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of a power domain control system provided in another embodiment of this application;

[0022] Figure 3 This is a flowchart illustrating a control method for a dynamic domain control system provided in an embodiment of this application.

[0023] 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

[0024] 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.

[0025] For electric vehicles, the domestic charging communication protocol for new energy vehicles is GBT27930, while European charging communication protocols include IEC61851-24, DIN70121, and ISO15118. Therefore, all types of exported new energy vehicles must be equipped with charging communication controllers conforming to European and American standards to charge. One related technology involves installing the EVCC (Electric Vehicle Charger) as an independent controller within the vehicle, enabling domestically compliant new energy vehicles to charge directly overseas. This method involves the EVCC having independent hardware, circuitry, and mounting structure within the vehicle. However, this approach suffers from higher overall vehicle costs and lower space utilization.

[0026] Based on the problems existing in related technologies, the embodiments of this application integrate the EVCC into the power domain controller, that is, integrate the EVCC and the power domain controller onto the same circuit board, so as to reduce the hardware, circuit, installation structure and installation position in the vehicle when the EVCC is an independent controller, improve the vehicle space utilization and reduce the vehicle cost. At the same time, by making the EVCC and the power domain controller share the charger, the vehicle space utilization is improved and integration is achieved.

[0027] The following is a combination of... Figure 1 The power domain control system provided in the embodiments of this application will be described in detail.

[0028] Figure 1 This is a schematic diagram of the structure of a power domain control system provided in an embodiment of this 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. 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] For example, a power domain controller can be represented as an XCU.

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

[0031] For example, the communication bus can be a Charge Controller Area Network (CAN) bus and a Propulsion CAN bus. The Charge CAN bus can be represented as the Charge_CAN bus, and the Propulsion CAN bus can be represented as the Propulsion_CAN bus.

[0032] For example, the charger can be an on-board charger (OBC).

[0033] For example, the charger can communicate with the power domain controller via the power CAN bus.

[0034] Optionally, the EVCC may include multiple wired transceivers, and the charger may communicate with the multiple wired transceivers in the EVCC via a power CAN bus.

[0035] In this embodiment, by integrating the EVCC and the power domain controller onto the same circuit board, the hardware, circuitry, mounting structure, and installation location of the EVCC in the vehicle are reduced when it is an independent controller, thereby improving the space utilization of the vehicle, reducing the overall vehicle cost, and achieving integration.

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

[0037] For example, the DC-DC converter and charger are integrated and packaged on the same circuit board, which is a different circuit board from the circuit board that integrates the EVCC and power domain controller.

[0038] For example, the circuit board that integrates the EVCC and the power domain controller can be housed in different cavities within the same housing as the circuit board that integrates the DC-DC converter and the charger.

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

[0040] The EVCC shares the PP resistor detection circuit and the plug-in signal detection circuit with the charger.

[0041] Understandably, compared to related technologies where the EVCC is installed as an independent controller in the vehicle, requiring separate PP resistance detection circuit and plug-in signal detection circuit for the EVCC, the power domain control system provided in this application integrates the EVCC and the charger to share the PP resistance detection circuit and plug-in signal detection circuit. By reducing the number of PP resistance detection circuits and plug-in signal detection circuits, the space utilization of the vehicle can be improved, and the overall vehicle cost can be reduced.

[0042] Optionally, the circuit board integrating the EVCC and the power domain controller is also equipped with multiple DC-DC power supplies, which are electrically connected to the EVCC to provide power at corresponding voltages to different devices in the EVCC.

[0043] For example, a DC-DC power supply can also be described as a DC-DC conversion circuit or a DC-DC power chip. This DC-DC power supply steps down the low-voltage electricity output from the vehicle's low-voltage battery (i.e., the storage battery) and then uses the stepped-down output voltage to provide electrical energy of corresponding voltage to different devices in the EVCC.

[0044] For example, the low-voltage electricity, such as 12V, output from the vehicle's low-voltage battery (i.e., the storage battery) is input into multiple DC-DC power supplies. One DC-DC power supply steps down the 12V voltage to 5V, and another DC-DC power supply steps down the 12V voltage to 3.3V.

[0045] The voltage conversion described above is merely an example. The specific voltage output of the DC-DC power supply should be determined according to the actual application requirements, and this application does not impose any limitations on it.

[0046] It is understood that in the power domain control system provided in the embodiments of this application, the EVCC and the power domain controller share multiple DC-DC power supplies.

[0047] Optionally, the multiple DC-DC power supplies include a first DC-DC power supply and a second DC-DC power supply. The different devices in the EVCC include multiple wired transceivers, a microcontroller, and a clock module. The first DC-DC power supply is electrically connected to the multiple wired transceivers to provide power at a first voltage to the multiple wired transceivers. The second DC-DC power supply is electrically connected to the microcontroller and the clock module to provide power at a second voltage to the microcontroller and the clock module.

[0048] For example, the first voltage can be 5V and the second voltage can be 3.3V. This application does not limit the values ​​of the first and second voltages; they can be determined according to actual application requirements.

[0049] Optionally, the EVCC may also include a fast charging protocol conversion module, which is used to convert the charging protocol during the charging process. For example, converting the Chinese national standard charging protocol to the European standard charging protocol, or vice versa.

[0050] Optionally, the power domain controller integrates a BMS; the microcontroller is connected to the BMS via a communication bus to send charging interaction signals to the BMS, which include charging gun insertion signals and card swiping signals.

[0051] For example, the microcontroller sends a charging interaction signal to the BMS via the charging CAN bus.

[0052] For example, the gun insertion signal can be represented as the CC2 signal, and the card swiping signal can be represented as the A+ signal.

[0053] For example, the plug-in signal and card swipe signal can be analogous to the plug-in signal and card swipe signal of a domestic charging pile output by a microcontroller.

[0054] As is understandable, the charging gun insertion signal is used to confirm whether the charging gun is correctly inserted into the charging station. That is, when the charging gun is inserted into the charging station, the insertion signal will be activated to confirm the connection between the charging gun and the charging station. 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 this application embodiment further includes a power supply circuit disposed between the power supply device and the DC-DC power supply. The power supply circuit includes a filter circuit and a reverse connection protection circuit, and the voltage provided by the power supply device is less than the voltage provided by the power battery.

[0056] For example, the power supply device can be the low-voltage battery of the electric vehicle, i.e., the storage battery. The output voltage of the power supply device can be 12V.

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

[0058] For example, the voltage provided by the power battery can be 400V.

[0059] For example, the filtering circuit is used to ensure the electromagnetic compatibility (EMC) of electronic devices such as power domain controllers and EVCC controllers in the power domain control system provided in the embodiments of this application during operation.

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

[0061] Optionally, in the power domain control system provided in this application embodiment, the circuit board integrating the EVCC and the power domain controller is packaged inside a housing.

[0062] Understandably, by encapsulating the circuit board inside the housing, that is, by routing the wiring between the EVCC and the power domain controller inside the housing, additional interference introduced by external wiring can be avoided, thus improving the reliability of the equipment.

[0063] In summary, the following is a combination of... Figure 2 The power domain control system provided in the embodiments of this application will be described in detail.

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

[0065] The EVCC includes multiple wired transceivers, a microcontroller, a fast charging protocol conversion module, and a clock module; the power domain controller integrates a BMS; the charger includes a PP resistor detection circuit and a plug-in signal detection circuit; and the power supply circuit includes a filter circuit and a reverse connection protection circuit.

[0066] For example, the EVCC communicates with the power domain controller via the power CAN bus and the charging CAN bus; one wired transceiver in the EVCC communicates with the charger via the power CAN bus, and another wired transceiver communicates with the power domain controller via the charging CAN bus; the EVCC is electrically connected to multiple DC-DC power supplies.

[0067] For example, the EVCC shares the PP resistor detection circuit and the plug-in signal detection circuit with the charger; the EVCC shares the power supply circuit and multiple DC-DC power supplies with the power domain controller.

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

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

[0070] The power domain control system provided in this application embodiment, on the one hand, saves on the EVCC's metal housing, wiring harness, bracket, low-voltage connector, etc., by integrating the EVCC into the power domain controller, that is, integrating the EVCC into the control circuit board of the power domain controller, thereby reducing the overall vehicle cost. At the same time, it improves the vehicle's space utilization by reducing the hardware, circuits, installation structure, and installation position of the EVCC in the vehicle when it is an independent controller. On the other hand, by sharing the PP resistor detection circuit and the charging gun signal detection circuit with the EVCC, it is possible to save on the PP resistor and charging gun signal interfaces and reduce the PP resistor and charging gun signal detection circuits, thereby reducing the overall vehicle cost, based on the separate setting of the EVCC. Furthermore, when the EVCC controller is integrated into the power domain controller, complete modular integration is achieved by redesigning the control schematic diagram corresponding to the control circuit board, further realizing cost reduction, integration, and platformization.

[0071] Based on the above embodiments, the following section uses the power domain control system provided in the above embodiments as the execution subject, combined with... Figure 3 The control method of the power domain control system provided in the embodiments of this application will be described in detail.

[0072] Figure 3 This is a schematic flowchart illustrating a control method for a dynamic domain control system provided in an embodiment of this application. Figure 3 As shown, the specific implementation of the control method for this dynamic domain control system may include the following steps:

[0073] S301, in response to receiving the charging station's plug-in wake-up signal, wakes up the charger in the power domain control system.

[0074] For example, when 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 the insertion wake-up signal sent by the charging pile.

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

[0076] For example, the charger in the power domain control system can be woken up by the plug-in wake-up signal.

[0077] Understandably, when the charging gun is not connected to the charging station, the charger can be in a dormant state, and the power it needs is provided by the low-voltage battery in the vehicle, i.e., the electric vehicle's battery.

[0078] S302 determines 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 this application embodiment is a fast charging protocol, that is, the corresponding charging current is DC.

[0080] S303 If the current charging current is DC, the power domain controller in the power domain control system will be woken up by the charger.

[0081] For example, the charger and the power domain controller communicate via a communication bus such as the power CAN bus.

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

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

[0084] In one possible implementation, the power domain controller wakes up the EVCC in the power domain control system via hardwire.

[0085] It is understood that the EVCC in the power domain control system provided in this application embodiment is electrically connected to the DC-DC power supply of the power domain controller.

[0086] For example, the power domain controller can wake up the EVCC by controlling the DC-DC power supply.

[0087] It should be noted that the EVCC in the power domain control system provided in this application embodiment can be woken up by power supply, that is, the EVCC is woken up when it receives electrical energy provided by the DC-DC power supply.

[0088] In this embodiment of the application, in response to receiving a charging station's plug-in wake-up signal, the charger in the power domain control system is woken up, and the charger determines whether the current charging current is DC. If the current charging current is DC, the charger further wakes up the power domain controller in the power domain control system, and then the power domain controller wakes up the EVCC in the power domain control system, thereby realizing the automatic wake-up of the EVCC in the power domain control system provided in this embodiment of the application.

[0089] Optionally, one possible implementation of step S304, which involves waking up the EVCC in the power domain control system via the power domain controller, is as follows: the power domain controller controls the start-up of the DC-DC power supply in the power domain control system, and the started DC-DC power supply supplies power to the EVCC to wake it up.

[0090] It should be noted that the power domain controller in the power domain control system provided in this application embodiment is powered by the low-voltage battery of the vehicle, i.e., the battery of the electric vehicle.

[0091] For example, after the power domain controller is woken up, the power domain controller can control the start of the DC-DC power supply so that the DC-DC power supply can supply power to the EVCC, thereby waking up the EVCC.

[0092] For example, the DC-DC power supply in the power domain control system can be multiple DC-DC power supplies.

[0093] For example, one of the multiple DC-DC power supplies can power the wired transceiver in the EVCC; another DC-DC power supply can power the microcontroller and clock module in the EVCC.

[0094] It is understood that in the power domain control system provided in this application embodiment, the EVCC shares the DC-DC power supply of the power domain controller. Therefore, in the control method of the power domain control system provided in this application embodiment, when waking up the EVCC, the power domain controller must be woken up first, so that the power domain controller controls the start of the DC-DC power supply, and after the DC-DC power supply is started, the power supply is supplied to the EVCC through the DC-DC power supply to achieve the wake-up of the EVCC.

[0095] Optionally, one possible implementation of determining whether the current charging current is DC by the charger in step S302 is: obtaining the PP resistance value from the charging pile by the charger; and determining whether the current charging current is DC by the charger based on the PP resistance value.

[0096] In some embodiments, when the PP resistance value is greater than a preset threshold, the current charging current is determined to be DC; when the PP resistance value is less than or equal to the preset threshold, the current charging current is determined to be AC.

[0097] In some embodiments, when the PP resistance value is greater than a preset threshold, the current charging current is determined to be AC; when the PP resistance value is less than or equal to the preset threshold, the current charging current is determined to be DC.

[0098] The embodiments of this application do not limit the size of the preset threshold; it can be determined according to the actual application requirements.

[0099] Optionally, in the control method of the power domain control system provided in the embodiments of this application, after the power domain controller wakes up the EVCC via hard-wired wake-up, it may further include: the EVCC receiving the CP protocol sent by the charging pile, and performing charging protocol conversion according to the CP protocol to obtain the target charging protocol; based on the target charging protocol, the EVCC interacts with the BMS integrated in the power domain controller to perform charging protocol interaction, wherein the charging interaction signal in the charging protocol interaction may include the plug-in signal and the card swipe signal, etc.

[0100] For example, the target charging protocol can be a DC charging protocol.

[0101] For example, the fast charging protocol conversion module in the EVCC converts the charging protocol according to the actual application requirements, and through the interaction between the fast charging protocol conversion module and the microcontroller in the EVCC, the microcontroller and the BMS integrated in the power domain controller can interact on the charging protocol.

[0102] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the control method of the power domain control system described above.

[0103] This application also provides a computer-readable storage medium storing computer-executable instructions. When a processor executes the computer-executable instructions, the control method of the above-described power domain control system is implemented.

[0104] The aforementioned readable storage medium can be implemented from any type of volatile or non-volatile storage device or a combination thereof, such as Static Random-Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0105] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0106] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0108] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0109] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0110] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0111] 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 power domain control system, characterized by, The application relates to a power domain control system of an electric vehicle. The system comprises an electric vehicle communication controller (EVCC), a power domain controller and a charger connected through a communication bus. 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. The power domain controller is integrated with a battery management system (BMS). The EVCC comprises a single-chip microcomputer connected with the BMS through a communication bus to send a charging interaction signal to the BMS.

2. The power domain control system of claim 1, wherein The charger comprises a PP resistance detection circuit and a plug-in gun signal detection circuit. The PP resistance detection circuit is used for detecting the PP resistance value of a charging pile.

3. The power domain control system of claim 1, wherein The plug-in gun signal detection circuit is used for detecting whether a charging gun is inserted into the charging pile.

4. The power domain control system of claim 3, wherein The EVCC and the charger share the PP resistance detection circuit and the plug-in gun signal detection circuit. The circuit board is further provided with a plurality of DCDC power supplies electrically connected with the EVCC to provide corresponding voltage power for different devices in the EVCC. The plurality of DCDC power supplies comprise a first DCDC power supply and a second DCDC power supply.

5. The power domain control system of claim 4, wherein The different devices in the EVCC comprise a plurality of wired electric transceivers, a single-chip microcomputer and a clock module.

6. The power domain control system according to any one of claims 1 to 5, characterized by, The first DCDC power supply is electrically connected with the plurality of wired electric transceivers to provide first voltage power for the plurality of wired electric transceivers. The second DCDC power supply is electrically connected with the single-chip microcomputer and the clock module to provide second voltage power for the single-chip microcomputer and the clock module.

7. The power domain control system according to any one of claims 1 to 5, characterized by, The charging interaction signal comprises a plug-in gun signal and a card swiping signal.

8. A control method of a power domain control system, characterized by, The application further relates to a power supply circuit arranged between a power supply device and a DCDC power supply. The circuit board is packaged in a shell. The application is applied to the power domain control system as claimed in any one of claims 1 to 7. The control method comprises the following steps: In response to receiving a plug-in gun wake-up signal sent by a charging pile, a charger in the power domain control system is woken up.

9. The control method according to claim 8, characterized by, It is determined through the charger whether the current charging current is direct current. If the current charging current is direct current, a power domain controller in the power domain control system is woken up through the charger.

10. The control method according to claim 8 or 9, characterized by, An electric vehicle communication controller (EVCC) in the power domain control system is woken up through the power domain controller. The EVCC in the power domain control system is woken up through the power domain controller, which comprises the following steps: The power domain controller is controlled to start a DCDC power supply in the power domain control system.

11. An electric vehicle characterized by comprising: The started DCDC power supply supplies power to the EVCC to wake up the EVCC. The current charging current is determined through the charger, which comprises the following steps: The PP resistance value is obtained from the charging pile through the charger. It is determined through the charger whether the current charging current is direct current according to the PP resistance value. The application relates to an electric vehicle body and the 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 that, when executed by a processor, implement the method of any one of claims 8 to 10.

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

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