A charging control method and device, electronic equipment and storage medium

Abstract

This application discloses a charging control method, device, electronic device, and storage medium. The method includes: acquiring the PP signal and CP signal corresponding to the charging gun of the vehicle through the vehicle's EVCC; if the charging gun is a charging gun, determining the charging standard corresponding to the charging gun through the EVCC based on the PP signal and CP signal; if the charging standard is an AC charging standard, sending the PP signal to the vehicle's OBC through the EVCC, determining the first regional standard and AC charging current corresponding to the charging gun through the OBC based on the PP signal, and performing AC charging of the vehicle according to the first regional standard and AC charging current; or, if the charging standard is a DC charging standard, determining the second regional standard and DC charging current corresponding to the charging gun through the EVCC based on the PP signal, and performing DC charging of the vehicle according to the second regional standard and DC charging current, thereby being compatible with charging of multiple regional standards and meeting diverse charging needs.

Description

Technical Field

[0001] This application relates to the field of charging technology, and more specifically, to a charging control method, apparatus, electronic device, and storage medium. Background Technology

[0002] In the international market, the export of new energy vehicles has become a clear trend, with plug-in hybrid electric vehicles (PHEVs) and pure electric vehicles (EVs) being exported more and more commonly. However, most existing electric vehicle charging systems are only compatible with European standards and cannot be compatible with both European and American standards. Therefore, how to achieve technical compatibility between European and American charging systems has become a major challenge. Summary of the Invention

[0003] In view of this, embodiments of this application propose a charging control method, apparatus, electronic device, and storage medium to improve the above-mentioned problems.

[0004] In a first aspect, embodiments of this application provide a charging control method, the method comprising: acquiring a proximity signal (PP) and a control guidance signal (CP) corresponding to a charging port on a vehicle via an electric vehicle charging controller (EVCC); if the charging port is a charging gun, determining the charging standard corresponding to the charging gun via the EVCC based on the PP and CP signals; if the charging standard is an AC charging standard, sending the PP signal to the on-board charger (OBC) of the vehicle via the EVCC, determining the first regional standard and AC charging current corresponding to the charging gun via the OBC based on the PP signal, and performing AC charging of the vehicle based on the first regional standard and the AC charging current; or if the charging standard is a DC charging standard, determining the second regional standard and DC charging current corresponding to the charging gun via the EVCC based on the PP signal, and performing DC charging of the vehicle based on the second regional standard and the DC charging current.

[0005] Secondly, embodiments of this application provide a charging control device, comprising: a PP signal and CP signal acquisition module, a charging standard determination module, an AC charging module, and a DC charging module. The PP signal and CP signal acquisition module is used to acquire a proximity signal (PP signal) and a control guidance signal (CP signal) corresponding to the vehicle's charging port via the vehicle's electric vehicle charging controller (EVCC). The charging standard determination module is used to determine the charging standard corresponding to the charging port based on the PP signal and the CP signal if the vehicle's charging port is a charging gun. The AC charging module is used to send the PP signal to the vehicle's on-board charger (OBC) via the EVCC if the charging standard is an AC charging standard, and to determine the first regional standard and AC charging current corresponding to the charging gun via the OBC based on the PP signal, and to perform AC charging of the vehicle based on the first regional standard and the AC charging current. The DC charging module is used to determine the second regional standard and DC charging current corresponding to the charging gun via the EVCC based on the PP signal if the charging standard is a DC charging standard, and to perform DC charging of the vehicle based on the second regional standard and the DC charging current.

[0006] Thirdly, embodiments of this application provide an electronic device, including a memory and a processor, wherein the memory is coupled to the processor, the memory stores instructions, and when the instructions are executed by the processor, the processor executes the charging control method provided in the first aspect above.

[0007] Fourthly, embodiments of this application provide a computer-readable storage medium storing program code, which can be invoked by a processor to execute the charging control method provided in the first aspect above.

[0008] In the scheme of this application, the proximity signal (PP) and control guidance signal (CP) corresponding to the vehicle's charging port are obtained through the vehicle's electric vehicle charging controller (EVCC). If the vehicle's charging port is a charging gun, the EVCC determines the charging standard corresponding to the charging gun based on the PP and CP signals. If the charging standard is an AC charging standard, the EVCC sends the PP signal to the vehicle's on-board charger (OBC), and the OBC determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal, and performs AC charging of the vehicle according to the first regional standard and AC charging current. If the charging standard is a DC charging standard, the EVCC determines the proximity signal (PP) corresponding to the charging gun based on the PP signal. The system uses the corresponding second regional standard and DC charging current to perform DC charging for the vehicle. The vehicle's EVCC determines the charging standard corresponding to the charging gun based on the PP and CP signals. Under AC charging standards, the vehicle's OBC determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal and controls the vehicle to perform AC charging. Under DC charging standards, the vehicle's EVCC determines the second regional standard and DC charging current corresponding to the charging gun based on the PP signal and controls the vehicle to perform DC charging. This system is compatible with different charging standards and regional standards, meeting diverse charging needs. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 A schematic flowchart of a charging control method provided in an embodiment of this application is shown; Figure 2 A schematic flowchart of a charging control method provided in an embodiment of this application is shown; Figure 3 A schematic diagram of a self-propelled vehicle insertion gun according to an embodiment of this application is shown; Figure 4 A schematic diagram of a vehicle charging process according to an embodiment of this application is shown; Figure 5 A circuit diagram of vehicle charging and discharging according to an embodiment of this application is shown; Figure 6 A schematic diagram of a self-discharge process provided in an embodiment of this application is shown; Figure 7 A block diagram of a charging control device according to an embodiment of this application is shown; Figure 8 A block diagram of an electronic device for performing a charging control method according to an embodiment of the present application is shown. Detailed Implementation

[0011] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0012] To better understand the solutions of the embodiments of this application, the technical terms used in the embodiments of this application will be explained below.

[0013] The Electric Vehicle Charging Controller (EVCC) serves as the core communication hub between the vehicle and the charging station, responsible for protocol conversion, charging process control, and data exchange to ensure charging compatibility and safety.

[0014] ECAN (Enhanced CAN Bus) is a key technology for powertrain communication in new energy vehicles, mainly responsible for the coordinated operation of core components such as motor controller, battery management system (BMS), and vehicle controller.

[0015] The PP (Proximity Pilot) signal of the charging gun is an important signal used to detect the physical connection status between the charging gun and the vehicle socket, and transmits current level information through a specific resistance value.

[0016] The CP (Communications Pilot) signal of the charging gun is a key signal of the AC charging interface of new energy vehicles. It is mainly used for communication between the charging pile and the vehicle to determine the charging mode, current and status control. The signal transmits information through PWM waves. Different duty cycles represent different current levels, and voltage changes indicate the device status (such as idle, connected, charging).

[0017] An on-board charger (OBC) is a key power electronic device in new energy vehicles responsible for converting external alternating current (AC) into direct current (DC) to charge the power battery. The main purpose of a power battery module / battery nanny / battery manager (BMS) is to intelligently manage and maintain each battery cell, monitor the battery status, prevent overcharging and over-discharging, and thus extend the battery's lifespan.

[0018] The Vehicle Control Unit (VCU) is the core control unit of new energy vehicles, equivalent to the ECU (Electronic Control Unit) of traditional fuel vehicles, and is responsible for monitoring and coordinating the operation of various vehicle systems.

[0019] Vehicle-to-Load (V2L) refers to the discharge of energy from a new energy vehicle to a load, or the technology by which a new energy vehicle converts the DC power from its power battery into 220V AC power through an on-board inverter to power external electrical equipment. It is mainly used in scenarios such as camping and emergency power supply.

[0020] In the electric vehicle charging standard (GB / T 18487.1-2015), a semi-connected state refers to the charging gun being in partial contact with the vehicle interface, characterized by a CC resistance value between that of a fully connected state and that of a fully connected state. The charging system will detect the half-connected state between (not connected, infinity) and (not connected). It will then take appropriate measures (such as stopping charging or issuing an alarm).

[0021] The CC2 signal is a vehicle-side charging connection confirmation signal, used to detect whether the charging gun is reliably connected to the vehicle's socket.

[0022] The K3 signal is the low-voltage auxiliary power relay in the charging pile, which is responsible for controlling the on / off of the 12V low-voltage auxiliary power supply.

[0023] The implementation details of the technical solutions in the embodiments of this application are described in detail below: Currently, in the field of AC / DC charging and discharging for exported new energy vehicles, most exported PHEV and EV models only meet European standard charging systems, failing to achieve compatibility with European and American standards and unable to meet discharge requirements. Furthermore, the PP resistance values ​​of most currently exported models are reported using hard wires, increasing the complexity of the vehicle wiring harness.

[0024] Related technologies propose a solution where, when a DC charging gun is connected, DC communication and control are performed between the power distribution control module and the BMS module to control the DC charging gun to perform DC charging. When an AC charging gun is connected, AC communication and control are performed between the on-board charger and the on-board charger to convert AC power to DC power and perform AC charging. However, this solution introduces an additional power distribution control module, increasing system cost; it also fails to explain the process of inserting the discharge gun; and the charging gun resistance is transmitted to the on-board charger via a hard wire, complicating the vehicle wiring harness.

[0025] Furthermore, related technologies propose a solution that obtains fast-charging carrier information from European standard fast-charging stations or slow-charging carrier information from European standard slow-charging stations and sends it to the EVCC control chip; the signal conversion circuit detects the PWM control signal of the European standard fast-charging station or slow-charging station and sends it to the EVCC control chip; when a fast-charging control signal is obtained, the on-board charger is deactivated and the battery management system enters the national standard fast-charging state; when a slow-charging control signal is obtained, the on-board charger and battery management system enter the national standard slow-charging state; the EVCC control chip analyzes the PWM control signal to determine whether it is fast or slow charging; if it is fast charging, it sends the fast-charging carrier information to the battery management system and sends the fast-charging control signal to the signal conversion circuit; if it is slow charging, it sends the slow-charging carrier information to the battery management system and sends the slow-charging control signal to the signal conversion circuit. However, this solution is only applicable to European standard DC charging and European standard AC charging, and cannot meet the requirements of American standard DC charging and American standard AC charging, nor does it meet the discharge requirements.

[0026] Therefore, there is a challenge in achieving compatibility of charging systems with European and American standards in related technologies.

[0027] To address the aforementioned problems, the inventors, through extensive research, have developed a charging control method, device, electronic equipment, and storage medium as described in this application. This method utilizes the vehicle's EVCC to determine the charging standard corresponding to the charging gun based on the PP and CP signals. Under AC charging standards, the vehicle's OBC determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal and controls the vehicle to perform AC charging. Under DC charging standards, the vehicle's EVCC determines the second regional standard and DC charging current corresponding to the charging gun based on the PP signal and controls the vehicle to perform DC charging. This approach is compatible with different charging standards and regional standards, meeting diverse charging needs. The specific charging control method will be described in detail in subsequent embodiments.

[0028] The embodiments involved in this application will now be described with reference to the accompanying drawings.

[0029] Please see Figure 1 , Figure 1 A schematic flowchart of a charging control method according to an embodiment of this application is shown. In a specific embodiment, this charging control method can be applied to, for example... Figure 7 The charging control device 200 and the electronic device 100 equipped with the charging control device 200 are shown. Figure 8 The following will use an electronic device as an example to illustrate the specific process of this embodiment. Of course, it is understood that the electronic device used in this embodiment may include vehicles, in-vehicle terminals, computers, etc., and is not limited thereto. The following will focus on... Figure 1The process shown will be described in detail. The charging control method may specifically include the following steps: Step S110: Obtain the proximity signal PP and the control guidance signal CP corresponding to the charging port of the vehicle through the vehicle's electric vehicle charging controller EVCC.

[0030] In some implementations, the electronic device can be a vehicle (which can also be understood as a self-driving car in this embodiment). The self-driving car may include an Electric Vehicle Charging Controller (EVCC), a Battery Management System (BMS), an On-Board Charger (OBC), and a Vehicle Control Unit (VCU). The EVCC can be used to detect the parameters of the self-driving car's charging port; these parameters include, but are not limited to, the PP signal and CP signal corresponding to the charging port. The self-driving car can obtain the PP signal and CP signal corresponding to its charging port through the EVCC.

[0031] Step S120: If the vehicle plug is a charging gun, the EVCC determines the charging standard corresponding to the charging gun based on the PP signal and the CP signal.

[0032] In some implementations, after acquiring the PP and CP signals corresponding to the vehicle's plug, the vehicle can determine the type of the plug based on its operating parameters, the PP signals, and the CP signals. The vehicle's operating parameters include, but are not limited to, situations where the vehicle is in sleep / standby mode or when it is powered on at high voltage.

[0033] For example, if the vehicle is in a sleep standby state, and the EVCC detects the PP signal and / or CP signal of the vehicle's charging port, it can be determined that the type of the charging port is a charging gun, and the vehicle's OBC can be woken up. Subsequently, if it is determined that the vehicle is AC charging, the vehicle's BMS can be woken up through the OBC to perform AC charging.

[0034] For example, if the vehicle is under high voltage power-on conditions, and the PP signal and / or CP signal of the vehicle's plug are detected by the EVCC, then the type of the vehicle's plug can be determined to be a discharge gun.

[0035] For example, if the EVCC of a vehicle detects a resistance of 3000 ohms corresponding to the PP signal, it can be determined that the type of the vehicle's charging port is a discharge gun.

[0036] In some implementations, after the vehicle determines the type of its charging port, it can determine the corresponding charging standard based on the PP and CP signals of the charging port, and perform charging control based on that charging standard. The charging standard can be an AC charging standard or a DC charging standard.

[0037] Among them, the vehicle can detect the PP resistance value corresponding to the PP signal and the CP duty cycle corresponding to the CP signal through EVCC, and determine the corresponding charging standard of the vehicle based on the PP resistance value and the CP duty cycle.

[0038] In some implementations, the vehicle may have a preset charging mode table, which may include the correspondence between PP resistance value and charging standard, the correspondence between PP resistance value and charging current, and the correspondence between PP resistance value and charging area standard, which is not limited here.

[0039] For example, the preset charging modes pre-set in the vehicle are shown in Table 1: Table 1 Based on Table 1, if the vehicle detects a PP resistance of 220 ohms, it can be determined that the charging standard corresponding to the charging gun is the AC charging standard, the regional standard corresponding to the charging gun is the European standard, and the corresponding charging current is 32A. Based on Table 1, if the vehicle detects a PP resistance of 150 ohms, it can be determined that the charging standard corresponding to the charging gun is either the AC or DC charging standard, the regional standard corresponding to the charging gun is the US standard, and the corresponding charging current is 16A.

[0040] In some implementations, the vehicle may be configured with a first range and a second range corresponding to the CP duty cycle. If the CP duty cycle is within the first range, the charging standard corresponding to the charging gun can be determined to be a DC charging standard; if the CP duty cycle is within the second range, the charging standard corresponding to the charging gun can be determined to be an AC charging standard. For example, the first range is (3%, 7%), and the second range is (8%, 98%). Based on this, if the vehicle detects a CP duty cycle of 53%, it can determine that the charging standard corresponding to the charging is an AC charging standard; similarly, if the vehicle detects a CP duty cycle of 4%, it can determine that the charging standard corresponding to the charging is a DC charging standard.

[0041] It is understood that in this embodiment, the vehicle can determine the charging standard of the charging gun based on the PP signal and CP signal corresponding to the charging gun, thus being compatible with the US standard charging gun and adaptable to the European standard charging gun for charging control of the vehicle, thereby improving the versatility of vehicle charging.

[0042] Step S130: If the charging standard is an AC charging standard, the PP signal is sent to the vehicle's on-board charger (OBC) through the EVCC, and the OBC determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal, and performs AC charging of the vehicle according to the first regional standard and the AC charging current.

[0043] In some implementations, if the vehicle determines that the type of its charging port is a charging gun, and the EVCC determines that the charging standard corresponding to the charging gun is an AC charging standard based on the PP signal and the CP signal, then the EVCC can send the PP signal to the vehicle's OBC, so that the OBC can respond to the PP signal to wake up the vehicle's BMS, VCU and other related components to charge the vehicle.

[0044] In some implementations, after the vehicle's EVCC sends the detected PP signal to the vehicle's OBC, the vehicle can use the OBC to determine the first regional standard corresponding to the charging gun and the AC charging current based on the PP signal. The first regional standard corresponding to the charging gun includes, but is not limited to, European standards, American standards, etc., and is not limited here.

[0045] In some implementations, the vehicle's OBC can obtain the regional standard corresponding to the PP resistance value corresponding to the PP signal corresponding to the charging gun as the first regional standard from the preset charging mode table in the vehicle, and can obtain the charging current corresponding to the PP resistance value corresponding to the PP signal corresponding to the charging gun as the AC charging current from the preset charging mode table.

[0046] In some implementations, after the vehicle determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal via the OBC, it can wake up the vehicle's BMS via the OBC, so that the BMS can perform AC charging of the vehicle based on the first regional standard and the AC charging current.

[0047] The OBC can communicate with the vehicle's BMS and VCU based on the PP signal received from the EVCC, enabling the vehicle to complete the slow charging process according to the national standard slow charging specifications. The vehicle can also control its various controllers to enter sleep mode after charging is complete. The completion of charging includes, but is not limited to, situations where the OBC does not receive a PP signal from the EVCC within a preset time, and / or detects that the vehicle's stored battery level has reached a threshold.

[0048] Step S140: If the charging standard is a DC charging standard, the EVCC determines the second regional standard and DC charging current corresponding to the charging gun based on the PP signal, and performs DC charging of the vehicle based on the second regional standard and the DC charging current.

[0049] In some implementations, if the vehicle determines through the EVCC that the charging port is a charging gun, and the EVCC determines through the EVCC, based on the PP and CP signals corresponding to the charging gun, that the charging standard corresponding to the charging gun is a DC charging standard, then the EVCC can output a hard-wired signal to the vehicle's BMS to wake up the BMS and control the BMS to perform DC charging of the vehicle based on the second regional standard and the DC charging current. The second regional standard and the DC charging current can be determined by the EVCC based on the PP signal.

[0050] In this system, when the EVCC of the vehicle determines that the charging standard corresponding to the charging gun is a DC charging standard, it can obtain the preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table as the second regional standard corresponding to the charging gun, and obtain the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table as the AC / DC current. The vehicle can have a preset charging mode table pre-set, which can include the preset regional standard corresponding to the resistance value and the charging current corresponding to the resistance value. The second regional standard can be a European standard or a US standard, etc., and is not limited here. For example, please refer to Table 1 again; the EVCC can determine the second regional standard and DC charging current corresponding to the charging gun based on the preset charging mode table shown in Table 1.

[0051] One embodiment of this application provides a charging control method that acquires the proximity signal (PP) and control guidance signal (CP) corresponding to the vehicle's charging port through the vehicle's electric vehicle charging controller (EVCC). If the vehicle's charging port is a charging gun, the EVCC determines the charging standard corresponding to the charging gun based on the PP and CP signals. If the charging standard is an AC charging standard, the EVCC sends the PP signal to the vehicle's on-board charger (OBC), and the OBC determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal, and performs AC charging of the vehicle according to the first regional standard and AC charging current. If the charging standard is a DC charging standard, the EVCC determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal. The system determines the charging standard corresponding to the second region and the DC charging current of the charging gun, and performs DC charging of the vehicle based on the second region standard and the DC charging current. The vehicle's EVCC determines the charging standard corresponding to the charging gun based on the PP and CP signals corresponding to the charging gun. Under the AC charging standard, the vehicle's OBC determines the first region standard corresponding to the charging gun and the AC charging current based on the PP signal, and controls the vehicle to perform AC charging. Under the DC charging standard, the vehicle's EVCC determines the second region standard corresponding to the charging gun and the DC charging current based on the PP signal, and controls the vehicle to perform DC charging. This system is compatible with charging standards of different regions and meets diverse charging needs.

[0052] Please see Figure 2 , Figure 2 A schematic flowchart of a charging control method according to an embodiment of this application is shown. This method is applied to the aforementioned electronic device, and will be discussed below. Figure 2 The process shown will be described in detail. The charging control method may specifically include the following steps: Step S201: Obtain the proximity signal PP and the control guidance signal CP corresponding to the charging port of the vehicle through the vehicle's electric vehicle charging controller EVCC.

[0053] For a description of step S201, please refer to the previous description of step S110, which will not be repeated here.

[0054] Step S202: If the type of vehicle charging gun is a charging gun, then the EVCC obtains the charging standard corresponding to the resistance value represented by the PP signal from the preset charging mode table according to the PP signal, and uses it as the charging standard of the charging gun. The preset charging mode table includes at least one resistance value and the charging standard corresponding to the resistance value.

[0055] In some implementations, the vehicle may have a preset charging mode table, which may include at least one resistance value and the corresponding charging standard for each resistance value. Specifically, after the vehicle's EVCC obtains the PP signal corresponding to the vehicle's charging port and determines that the vehicle's charging port is a charging gun, it can retrieve the charging standard corresponding to the resistance value represented by the PP signal from the preset charging mode table, using this standard as the charging standard when the vehicle's charging port is a charging gun.

[0056] Step S203: If there is no charging standard corresponding to the resistance value represented by the PP signal in the preset charging mode table, then the EVCC determines the charging standard of the charging gun based on the CP signal.

[0057] In some implementations, if the vehicle's EVCC determines that there is no charging standard in the preset charging mode table that corresponds to the resistance value represented by the PP signal detected by the EVCC, the EVCC can determine the charging standard when the vehicle's plug is a charging gun based on the CP signal corresponding to the vehicle's plug.

[0058] As an feasible approach, if the vehicle determines the CP duty cycle corresponding to the CP signal through the EVCC to be within the first range, then the charging standard when the vehicle's charging gun is a DC charging gun can be determined to be the DC charging standard.

[0059] As another feasible approach, if the vehicle determines the CP duty cycle corresponding to the CP signal to be within the second range through the EVCC, then the charging standard when the vehicle's charging gun is a charging gun can be determined to be the AC charging standard.

[0060] The first and second ranges can be preset in the vehicle, and the minimum value in the second range can be greater than the maximum value in the first range. For example, the first range is (3%, 7%) and the second range is (8%, 9%).

[0061] Step S204: If the EVCC determines that the charging standard corresponding to the charging gun is the AC charging standard based on the PP signal and the CP signal, then the EVCC sends the PP signal to the OBC based on the enhanced bus ECAN.

[0062] In some implementations, if the vehicle determines that the type of its charging port is a charging gun, and the EVCC determines that the charging standard corresponding to the charging gun is an AC charging standard based on the PP signal and CP signal corresponding to the charging gun, then the EVCC can send the PP signal to the vehicle's OBC based on the vehicle's ECAN.

[0063] It is understandable that the EVCC sends the PP signal to the vehicle's OBC through ECAN, simplifying the vehicle's wiring harness. At the same time, ECAN can also realize the EVCC's diagnostics, updates, OTA and other functions. Even without a power distribution control module, the vehicle can still be charged, reducing the complexity of the vehicle's structure and the overall cost of the vehicle.

[0064] Step S205: Obtain a preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table through the OBC, as the first regional standard corresponding to the charging gun, and obtain the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, as the AC charging current. The preset charging mode table also includes the preset regional standard corresponding to the resistance value and the charging current corresponding to the resistance value.

[0065] In some implementations, after the vehicle's EVCC determines that the charging port is a charging gun and that the vehicle's charging standard is AC charging standard, it can send a PP signal to the vehicle's OBC via ECAN. The OBC can then retrieve a preset regional standard corresponding to the resistance value represented by the PP signal from a preset charging mode table, using this as the first regional standard for the charging gun. It also retrieves the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, using this as the AC charging current. The vehicle can have a preset charging mode table pre-set, which may include the preset regional standard corresponding to the resistance value and the corresponding charging current. For example, referring to Table 1 again, if the vehicle's EVCC detects that the PP signal representing the charging gun has a resistance value of 220 ohms and the CP signal representing a CP duty cycle of 53%, based on this, the EVCC can determine that the charging gun type is a European standard AC charging gun based on the preset charging mode table and can transmit the detected PP signal to the vehicle's OBC via ECAN. In addition, the vehicle's OBC can determine the first regional standard (European standard) and AC charging current (32A) corresponding to the charging gun based on the preset charging mode table shown in Table 1 and the PP signal, and then control the vehicle's BMS to enter the AC charging process based on the first regional standard (European standard) and AC charging current (32A).

[0066] The preset regional standards include, but are not limited to, European regional standards, American regional standards, etc., and are not limited here. The first regional standard can be a European standard or an American standard, etc., and is not limited here.

[0067] For example, please refer to Figure 3This document illustrates a schematic diagram of a vehicle charging port according to an embodiment of this application. The vehicle may include an EVCC, OBC, and BMS. The types of vehicle charging ports include, but are not limited to, European standard DC charging ports, American standard DC charging ports, European standard AC charging ports, American standard AC charging ports, and discharge ports. The EVCC can detect the type of vehicle charging port and, if it determines that the charging port is a charging port and that the corresponding charging standard is AC, it controls the OBC to perform AC charging for the vehicle. Furthermore, during charging, the EVCC detects the PP resistance and CP duty cycle to determine the charging station type, including European standard AC, European standard DC, American standard AC, and American standard DC. Once the charging station type is determined, the EVCC module forwards the PP resistance value or the PLC signal for the charging port, and the vehicle enters the corresponding AC or DC charging process.

[0068] Step S206: Wake up the vehicle's power battery module BMS through the OBC, and control the BMS to perform AC charging of the vehicle based on the first regional standard and the AC charging current through the OBC.

[0069] In some implementations, the vehicle obtains a preset regional standard corresponding to the resistance value represented by the PP signal from a preset charging mode table via the OBC, which serves as the first regional standard corresponding to the charging gun. After obtaining the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, which serves as the AC charging current, the vehicle's power battery module BMS can be woken up via the OBC. The BMS can then be controlled by the OBC to perform AC charging of the vehicle based on the first regional standard and the AC charging current. This ensures compatibility with charging in different regions under the AC charging standard, meeting diverse charging needs.

[0070] Step S207: If the EVCC determines that the charging standard corresponding to the charging gun is a DC charging standard based on the PP signal and the CP signal, then the EVCC obtains the preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table as the second regional standard corresponding to the charging gun, and obtains the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table as the DC charging current.

[0071] In some implementations, if the vehicle determines that the type of its charging port is a charging gun through the EVCC, and determines that the charging standard corresponding to the charging gun is a DC charging standard based on the PP signal and CP signal corresponding to the charging gun through the EVCC, then the EVCC can obtain the preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table as the second regional standard corresponding to the charging gun, and obtain the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table as the AC / DC current.

[0072] The vehicle can have a preset charging mode table, which may include a preset regional standard corresponding to a resistance value and a corresponding charging current. The second regional standard can be a European standard or a US standard, etc., and is not limited here. For example, please refer to Table 1 again; the EVCC can determine the second regional standard and DC charging current corresponding to the charging gun based on the preset charging mode table shown in Table 1.

[0073] Step S208: The EVCC outputs a hard-wired signal to the BMS to wake up the BMS and controls the BMS to perform DC charging of the vehicle based on the second regional standard and the DC charging current.

[0074] In some implementations, the vehicle's EVCC can output a hard-wired signal (e.g., K3 signal, CC2 signal, etc.) to wake up the BMS when it determines that the charging standard of the charging gun is DC charging standard. The BMS then maintains the vehicle network. The EVCC can also convert the PLC signal transmitted by the charging gun into a CAN signal and communicate with the BMS via the internal CAN according to national standard procedures to perform DC charging of the vehicle until DC charging is completed, at which point the various controllers of the vehicle enter sleep mode. The completion of DC charging can include the EVCC not detecting the PP or CP signal from the charging gun within a preset time period, or the EVCC detecting that the vehicle's battery level has reached a threshold.

[0075] For example, please refer to Table 1 again. The EVCC of the vehicle detects that the PP signal corresponding to the charging gun represents a resistance of 150 ohms, and the CP signal represents a CP duty cycle of 4%. The EVCC can determine the type of the charging gun as a US standard DC charging gun based on the preset charging mode table, and can output K3 signal and CC2 signal to the vehicle's BMS. It can also convert the PLC signal transmitted by the charging gun into a CAN signal, communicate with the BMS through CCAN, and control the vehicle to enter the US standard DC charging process.

[0076] It can be understood that in this embodiment, when the vehicle is in a dormant state and the charging gun is inserted, the vehicle can wake up its EVCC and OBC based on the PP signal and / or CP signal corresponding to the charging gun detected by the EVCC. Among them, the EVCC can detect the PP signal and CP signal of the charging gun in real time, and can determine the charging mode of the vehicle charging (such as AC charging of European standard or American standard, DC charging of European standard or American standard, etc.) according to the resistance value represented by the PP signal and the CP duty cycle represented by the CP signal.

[0077] Among them, when the EVCC determines that the vehicle charging mode is AC charging, it can send the PP signal to the OBC of the vehicle through the vehicle ECAN, wake up components such as the BMS and VCU of the vehicle through the OBC, and can communicate with the BMS and VCU through the OBC to complete the slow charging process according to the national standard slow charging specification. And after the charging is completed through the OBC, it can control each controller of the vehicle to enter the dormant state.

[0078] Among them, when the EVCC determines that the vehicle charging mode is DC charging, it can output the K3 signal and CC2 signal to wake up the BMS of the vehicle. The BMS maintains the vehicle network, and can convert the PLC signal transmitted by the charging gun into a CAN signal through the EVCC, and communicate and interact according to the national standard process with the BMS through the internal CAN of the vehicle for DC charging of the vehicle until the DC charging is completed, and control each controller of the vehicle to enter the dormant state through the EVCC.

[0079] Exemplarily, please refer to Figure 4 , which shows a schematic flow diagram of vehicle charging provided by an embodiment of the present application. Among them, the vehicle includes an EVCC, an OBC, a BMS, etc. Among them, in the scenario where the vehicle is in a dormant state and the charging gun is inserted, the EVCC and OBC of the vehicle are woken up based on the detected CP signal of the charging gun, and the EVCC detects the PP signal and CP signal of the charging gun in real time. Among them, the EVCC can judge the charging standard corresponding to the charging gun based on the PP resistance value represented by the PP signal and the CP duty cycle represented by the CP signal. Among them, when the EVCC detects that the CP duty cycle is in the first range (such as, 3% < CP duty cycle < 7%), it can determine that the charging standard corresponding to the charging gun is the DC charging standard, and can distinguish the regional standard corresponding to the charging gun (such as European standard or American standard, etc.) according to the PP resistance value, and can determine the charging current corresponding to the charging gun according to the PP resistance value.

[0080] Among them, when the EVCC detects that the duty cycle of CP is in the second range (e.g., 8% < CP duty cycle < 97%), it can determine that the charging standard corresponding to the charging gun is the AC charging standard, and can distinguish the regional standard corresponding to the charging gun according to the PP resistance value (such as European standard or American standard, etc.), and can determine the charging current corresponding to the charging gun according to the PP resistance value.

[0081] Among them, if the EVCC determines that the charging standard corresponding to the charging gun is the AC charging standard, it can send the detected PP signal to the on-vehicle OBC through the vehicle's ECAN, wake up components such as the vehicle's BMS and VCU through the OBC for communication, complete the AC charging of the vehicle according to the slow charging conditions, and can control the various controllers of the vehicle to enter the sleep state when the vehicle's charging ends.

[0082] Among them, if the EVCC determines that the charging standard corresponding to the charging gun is the DC charging standard, it can output the K3 signal, K4 signal, and CC2 signal to the BMS to wake up the BMS; among them, the EVCC can also perform PLC communication with the charging pile corresponding to the charging gun, and can convert the PLC signal into a CAN signal to interact with the vehicle's BMS to achieve the DC charging of the vehicle, and can control the various controllers of the vehicle to enter the sleep state when the DC charging ends.

[0083] Thus, it is compatible with European standard AC charging, European standard DC charging, American standard AC charging, and American standard DC charging, meeting the diverse charging needs of the vehicle export destinations; and, when charging AC, the PP signal is transmitted through the vehicle's ECAN, simplifying the vehicle wiring harness, and the EVCC of the vehicle through ECAN can also implement functions such as vehicle refresh, diagnosis, and OTA.

[0084] Step S209: If the type of the gun inserted into the vehicle is a discharge gun, the EVCC sends the PP signal to the on-vehicle OBC and the vehicle control unit VCU of the vehicle based on the vehicle's ECAN.

[0085] In some embodiments, if the EVCC of the vehicle detects that the type of the gun inserted into the vehicle is a discharge gun, it can send the detected PP signal of the discharge gun to the on-vehicle OBC and the vehicle control unit VCU of the vehicle based on the vehicle's ECAN.

[0086] Among them, when the vehicle is in the high-voltage power-on state, if the EVCC of the vehicle detects the PP signal and / or CP signal corresponding to the gun inserted into the vehicle, it can be determined that a discharge gun is inserted into the vehicle. Among them, the EVCC of the vehicle can send the recognized PP signal corresponding to the discharge gun to the on-vehicle OBC and the VCU of the vehicle through the vehicle's ECAN. Exemplarily, please refer to Figure 5This document illustrates a circuit diagram for vehicle charging and discharging according to an embodiment of this application. The vehicle includes an EVCC, OBC, and BMS. The vehicle can supply power to the EVCC via KL30 and KL31 lines. The EVCC can communicate with the BMS via CCAN or transmit PP signals via ECAN. Various components of the vehicle can obtain the PP signals detected by the EVCC from the ECAN. The EVCC can determine whether the vehicle's charging port is a charging or discharging port based on the detected CP and PP signals. If the EVCC determines that the vehicle's charging port is a charging port and the corresponding charging standard is AC charging, it can send the detected PP signal of the charging port to the vehicle's OBC via ECAN, waking up the OBC to communicate with the vehicle's BMS, VCU, and other components to achieve AC charging. Alternatively, the EVCC can also send the detected CP signal to the vehicle's OBC.

[0087] Among them, EVCC can also send the detected charging / discharging gun's PP signal to various components in the vehicle (such as OBC, VCU, etc.) via ECAN when it is determined that the charging / discharging gun is a discharge gun.

[0088] Among them, when the EVCC determines that the vehicle's charging gun is a charging gun and the charging standard corresponding to the charging gun is DC charging, it outputs CC2 and K3 signals to the vehicle's BMS. The BMS maintains the vehicle network and can convert the PLC signal transmitted by the charging gun into a CAN signal. The EVCC then communicates with the BMS via CCAN according to the national standard procedure to perform DC charging for the vehicle.

[0089] In some implementations, the vehicle can pre-set a correspondence between the PP resistance value and the corresponding regional standard, discharge standard, and discharge parameters of the discharge gun. Based on this, the EVCC can determine the corresponding regional standard (e.g., European standard, US standard, etc.) of the discharge gun based on the resistance value represented by the PP signal, and can determine the corresponding discharge parameters (e.g., maximum discharge power, maximum discharge current, etc.) of the discharge gun based on this resistance value, and can also determine the corresponding discharge standard (e.g., AC discharge standard, DC discharge standard, etc.) of the discharge gun based on this resistance value. For example, the vehicle may pre-set a PP resistance value of 3000 ohms, corresponding to European standard AC discharge, with the discharge power limited to no more than 3.3 kW. Based on this, if the EVCC recognizes that the PP resistance value represented by the PP signal corresponding to the discharge gun is 3000 ohms, it can determine that the corresponding regional standard of the discharge gun is the European standard, the corresponding discharge standard is the AC discharge standard, and the discharge power is limited to no more than 3.3 kW. Among them, EVCC can send the PP signal corresponding to the detected discharge gun to the vehicle's OBC through the vehicle's ECAN when it is determined that the vehicle's plug is a discharge gun, thereby eliminating the hard-wire transmission of the PP signal and simplifying the vehicle's low-voltage wiring harness.

[0090] Additionally, please refer to the following: Figure 5As shown in Table 1, in this embodiment, when the vehicle is plugged in for charging, the EVCC detects the PP resistance value and CP duty cycle to determine the type of charging station (including European standard AC, European standard DC, American standard AC, and American standard DC). It then comprehensively determines whether to forward the PP resistance value or switch the PLC signal of the charging gun via the EVCC to control the vehicle to enter the corresponding AC or DC charging process. Specifically, the vehicle's EVCC classifies the European standard DC charging gun, American standard DC charging gun, European standard AC charging gun, American standard AC charging gun, and discharge gun into seven levels based on the PP resistance value. When the charging gun or discharge gun is plugged in, the EVCC detects the PP resistance value and CP duty cycle to comprehensively determine whether the vehicle's plug is a European standard DC charging gun, an American standard DC charging gun, a European standard AC charging gun, an American standard AC charging gun, or a discharge gun, and can simultaneously determine the maximum operating current for discharge. If the EVCC determines that a European or American standard DC charging gun is plugged into the vehicle, it can parse the PLC signal transmitted by the charging gun and convert it into a CAN signal that meets GB / T 27930 standards. This CAN signal can then interact with the vehicle's BMS via CCAN, and the EVCC can output CC2 and K3 signals to the BMS, initiating the national standard fast charging process. If the EVCC determines that a European or American standard AC charging gun is plugged into the vehicle, it can transmit the PP resistance signal to the vehicle's OBC via the vehicle's ECAN. The OBC can then interact with the vehicle's BMS and VCU, initiating the national standard AC charging process. If the EVCC determines that a discharge gun is plugged into the vehicle, it can transmit the PP resistance signal to the vehicle's OBC via the vehicle's ECAN. The OBC can then respond to the discharge request sent by the vehicle's VCU, interacting with the BMS, initiating the national standard discharge process.

[0091] Step S210: The OBC responds to the discharge command and determines the target current based on the PP signal, the discharge command, and the discharge parameters of the OBC, wherein the discharge command is output by the VCU based on the PP signal transmitted in the ECAN.

[0092] In some implementations, after the EVCC sends the detected discharge gun's PP signal to the vehicle's VCU, the VCU can send a discharge command to the vehicle's OBC based on the PP signal. The discharge command is output by the vehicle's VCU based on the PP signal transmitted in the vehicle's ECAN.

[0093] Among them, after the vehicle's OBC obtains the PP signal sent by the EVCC and the discharge command sent by the VCU, it can determine the target current for the vehicle to discharge by combining the PP signal corresponding to the discharge gun, the discharge command sent by the VCU, and the discharge parameters of the OBC.

[0094] The OBC can determine the maximum discharge current of the discharge gun based on the PP resistance value corresponding to the discharge gun. The OBC can also obtain the requested current from the VCU based on the discharge command sent by the VCU, and the OBC can determine its maximum permissible discharge current based on its own discharge parameters. The OBC can obtain the maximum current value, minimum current value, and average current value as the target current from the maximum discharge current, requested current, and maximum permissible discharge current. For example, the OBC determines the maximum discharge current of the discharge gun to be 15A based on a PP resistance value of 3000 ohms, determines the OBC's maximum permissible discharge current to be 32A, and determines the VCU's requested current to be 10A based on the VCU's discharge command. The OBC can take the minimum value among these three as the target discharge current of 10A for the discharge gun.

[0095] Step S211: Control the discharge gun to discharge based on the target current through the OBC.

[0096] In some implementations, after the OBC determines the target current, it can control the discharge gun to discharge based on that target current. For an example, please refer to [link to example]. Figure 6 This document illustrates a schematic diagram of a vehicle discharge process according to an embodiment of this application. When the vehicle is under high-voltage power-on, if the EVCC detects the PP signal of the discharge gun, it can be determined that the vehicle has inserted the discharge gun. The EVCC can monitor the PP signal corresponding to the discharge gun in real time and transmit this PP signal to the vehicle's OBC, VCU, and other components via the vehicle's ECAN. The vehicle's VCU can send a discharge command to the vehicle's OBC based on the PP signal. The vehicle's OBC can determine the target discharge current based on the PP resistance value corresponding to the PP signal, the discharge command sent by the VCU, and its own discharge parameters. After determining the target current, the OBC can control the discharge gun to discharge based on that target current until the discharge is complete; and it can enter a sleep state after the discharge is finished. Therefore, when the discharge gun is inserted, the EVCC detects the PP resistance value of the discharge gun and sends it to the OBC of the vehicle via ECAN. After receiving the VCU discharge command, the OBC responds to the discharge command by taking the smaller current value from the discharge gun limit current determined by the PP resistance value, the request current corresponding to the discharge command of the VCU, and the OBC's own discharge current limit to control the discharge of the V2L discharge gun.

[0097] The charging control method provided in one embodiment of this application is compared to... Figure 1The charging control method shown in this embodiment allows the EVCC to obtain the charging standard corresponding to the resistance value represented by the PP signal from a preset charging mode table before sending the PP signal to the vehicle's on-board charger (OBC). This standard is used as the charging standard for the charging gun if the vehicle's plug-in type is a charging gun and the EVCC determines the corresponding charging standard based on the PP and CP signals. The preset charging mode table includes at least one resistance value and its corresponding charging standard. If no charging standard corresponding to the resistance value represented by the PP signal exists in the preset charging mode table, the EVCC determines the charging standard for the charging gun based on the CP signal. Thus, during plug-in charging, the EVCC detects the PP resistance value and CP duty cycle to determine the charging gun type and forwards the PP resistance value through the EVCC module, enabling the vehicle to enter the corresponding AC charging process, thereby meeting the diverse charging needs of the vehicle.

[0098] Meanwhile, the preset charging mode table in this embodiment may also include preset regional standards corresponding to resistance values ​​and charging currents corresponding to resistance values. This embodiment may also obtain the preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table through the OBC, as the first regional standard corresponding to the charging gun, and obtain the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, as the AC charging current. The power battery module BMS of the vehicle is woken up through the OBC, and the BMS is controlled by the OBC to perform AC charging of the vehicle based on the first regional standard and the AC charging current, thereby being compatible with charging of different regional standards under the AC charging standard and meeting the diversified charging needs of the vehicle's export location.

[0099] In addition, this embodiment can also send the PP signal to the OBC via the EVCC based on the enhanced bus ECAN, thereby transmitting the PP signal through the vehicle's ECAN during AC charging, which simplifies the vehicle wiring harness.

[0100] Meanwhile, this embodiment can also be implemented when the vehicle's charging port is a charging gun, and the EVCC determines that the charging standard corresponding to the charging gun is a DC charging standard based on the PP signal and CP signal. The EVCC obtains a preset regional standard corresponding to the resistance value represented by the PP signal from a preset charging mode table as the second regional standard corresponding to the charging gun, and obtains the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table as the DC charging current. The EVCC outputs a hard-wired signal to the vehicle's BMS to wake up the BMS and controls the BMS to perform DC charging of the vehicle based on the second regional standard and the DC charging current. This allows for charging compatibility with different regional standards under the DC charging standard, meeting the diverse charging needs of the vehicle's export location and improving the vehicle's practicality.

[0101] In addition, if the vehicle's charging port is a discharge gun, this embodiment can also send the PP signal to the vehicle's OBC and VCU via the EVCC based on the vehicle's ECAN. The OBC responds to the discharge command and determines the target current based on the PP signal, the discharge command, and the OBC's discharge parameters. The discharge command is output by the VCU based on the PP signal transmitted in the ECAN. The OBC controls the discharge gun to discharge based on the target current, thus enabling vehicle discharge control compatible with different regions and discharge standards, meeting the diverse charging and discharging needs of the vehicle. Furthermore, the PP signal is transmitted through the vehicle's ECAN during discharge, simplifying the vehicle's wiring harness.

[0102] Please see Figure 7 , Figure 7 A block diagram of a charging control device according to an embodiment of this application is shown. This charging control device 200 is applied to the aforementioned electronic device, and will be discussed below. Figure 7 The process is described in detail below. The charging control device 200 includes: a PP signal and CP signal acquisition module 210, a charging standard determination module 220, an AC charging module 230, and a DC charging module 240, wherein: The PP signal and CP signal acquisition module 210 is used to acquire the proximity signal PP signal and the control guidance signal CP signal corresponding to the vehicle charging gun through the vehicle's electric vehicle charging controller EVCC.

[0103] The charging standard determination module 220 is used to determine the charging standard corresponding to the charging gun through the EVCC based on the PP signal and the CP signal if the type of the vehicle plug is a charging gun.

[0104] The AC charging module 230 is used to send the PP signal to the vehicle's on-board charger (OBC) via the EVCC if the charging standard is an AC charging standard, and to determine the first regional standard and AC charging current corresponding to the charging gun via the OBC based on the PP signal, and to perform AC charging of the vehicle based on the first regional standard and the AC charging current.

[0105] The DC charging module 240 is used to determine the second regional standard and DC charging current corresponding to the charging gun through the EVCC based on the PP signal if the charging standard is a DC charging standard, and to perform DC charging of the vehicle according to the second regional standard and the DC charging current.

[0106] Furthermore, the charging standard determination module 220 may include: a first charging standard determination unit and a second charging standard determination unit, wherein: The first unit for determining the charging standard is used to obtain the charging standard corresponding to the resistance value represented by the PP signal from a preset charging mode table through the EVCC, and use it as the charging standard of the charging gun. The preset charging mode table includes at least one resistance value and the charging standard corresponding to the resistance value.

[0107] The second unit for determining the charging standard is used to determine the charging standard of the charging gun by means of the EVCC based on the CP signal if there is no charging standard corresponding to the resistance value represented by the PP signal in the preset charging mode table.

[0108] Furthermore, the second unit for determining the charging standard may include: a DC charging standard determination unit and an AC charging standard determination unit, wherein: A DC charging standard determination unit is used to determine that the charging standard of the charging gun is a DC charging standard if the CP signal is determined to be within a first range by the EVCC.

[0109] An AC charging standard determination unit is used to determine that the charging standard of the charging gun is an AC charging standard if the CP signal is determined to be in a second range by the EVCC, wherein the minimum value in the second range is greater than the maximum value in the first range.

[0110] Furthermore, the preset charging mode table also includes a preset regional standard corresponding to the resistance value and a charging current corresponding to the resistance value. The AC charging module 230 may include: a regional standard determination first unit and an AC charging subunit, wherein: The first unit for determining the regional standard is used to obtain a preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table through the OBC, as the first regional standard corresponding to the charging gun, and to obtain the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, as the AC charging current. An AC charging subunit is used to wake up the vehicle's power battery module (BMS) via the OBC, and to control the BMS to perform AC charging of the vehicle based on the first regional standard and the AC charging current via the OBC.

[0111] Furthermore, the DC charging module 240 may include: a regional standard determination second unit and a DC charging subunit, wherein: The second unit for determining the regional standard is used to obtain a preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table through the EVCC, as the second regional standard corresponding to the charging gun, and to obtain the charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, as the DC charging current.

[0112] The DC charging subunit is used to output a hard-wired signal to the BMS via the EVCC to wake up the BMS and control the BMS to perform DC charging of the vehicle based on the second regional standard and the DC charging current via the EVCC.

[0113] Furthermore, the AC charging module 230 may include: an ECAN transmission unit, wherein: The ECAN transmission unit is used to send the PP signal to the OBC via the EVCC based on the enhanced bus ECAN.

[0114] Furthermore, the charging control device 200 may further include: a second unit for transmitting PP signals via ECAN, a target current determination unit, and a discharge control unit, wherein: The second unit for transmitting PP signals via ECAN is used to send the PP signal to the vehicle's OBC and the vehicle control unit (VCU) via the EVCC based on the vehicle's ECAN if the type of the vehicle's plug is a discharge gun.

[0115] A target current determination unit is used to determine a target current based on the PP signal, the discharge command, and the discharge parameters of the OBC in response to a discharge command, wherein the discharge command is output by the VCU based on the PP signal transmitted in the ECAN.

[0116] A discharge control unit is used to control the discharge gun to discharge based on the target current via the OBC.

[0117] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the above-described device and module can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0118] In the several embodiments provided in this application, the coupling between modules can be electrical, mechanical, or other forms of coupling.

[0119] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0120] Please see Figure 8This document illustrates a structural block diagram of an electronic device according to an embodiment of this application. The electronic device 100 can be a vehicle, in-vehicle terminal, server, computer, or other device with processing capabilities. The electronic device 100 in this application may include one or more of the following components: a processor 110, a memory 120, and one or more application programs. The one or more application programs may be stored in the memory 120 and configured to be executed by one or more processors 110. The one or more programs are configured to perform the methods described in the foregoing method embodiments.

[0121] The processor 110 may include one or more processing cores. The processor 110 connects to various parts of the vehicle 100 via various interfaces and lines, and performs various functions and processes data of the vehicle 100 by running or executing instructions, programs, code sets, or instruction sets stored in the memory 120, and by calling data stored in the memory 120. Optionally, the processor 110 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 110 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content to be displayed; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor 110 and may be implemented separately through a communication chip.

[0122] The memory 120 may include random access memory (RAM) or read-only memory (ROM). The memory 120 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 120 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as touch functionality, sound playback functionality, image playback functionality, etc.), and instructions for implementing the various method embodiments described below. The data storage area may also store data created by the electronic device 100 during use (such as phonebook data, audio and video data, chat log data, etc.).

[0123] In this embodiment, a computer-readable medium stores program code, which can be called by a processor to execute the methods described in the above method embodiments.

[0124] Computer-readable storage media can be electronic storage devices such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM, hard disk, or ROM. Optionally, computer-readable storage media includes non-transitory computer-readable storage medium. The computer-readable storage medium has storage space for program code that performs any of the method steps described above. This program code can be read from or written to one or more computer program products. The program code can be compressed, for example, in a suitable form.

[0125] In this application, "multiple" refers to two or more.

[0126] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0127] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0128] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0129] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0130] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A charging control method, characterized in that, The method includes: The vehicle's electric vehicle charging controller (EVCC) acquires the proximity signal (PP) and control guidance signal (CP) corresponding to the vehicle's charging port. If the vehicle plug is a charging gun, the EVCC determines the charging standard corresponding to the charging gun based on the PP signal and the CP signal. If the charging standard is an AC charging standard, the PP signal is sent to the vehicle's on-board charger (OBC) via the EVCC. The OBC then determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal, and performs AC charging of the vehicle according to the first regional standard and the AC charging current; or If the charging standard is a DC charging standard, then the EVCC determines the second regional standard and DC charging current corresponding to the charging gun based on the PP signal, and performs DC charging of the vehicle according to the second regional standard and the DC charging current.

2. The method according to claim 1, characterized in that, The step of determining the charging standard corresponding to the charging gun through the EVCC based on the PP signal and the CP signal includes: The EVCC obtains the charging standard corresponding to the resistance value represented by the PP signal from a preset charging mode table based on the PP signal, and uses it as the charging standard for the charging gun. The preset charging mode table includes at least one resistance value and the charging standard corresponding to the resistance value. If there is no charging standard corresponding to the resistance value represented by the PP signal in the preset charging mode table, then the EVCC determines the charging standard of the charging gun based on the CP signal.

3. The method according to claim 2, characterized in that, The step of determining the charging standard of the charging gun based on the CP signal via the EVCC includes: If the CP signal is determined to be within a first range by the EVCC, then the charging standard of the charging gun is determined to be the DC charging standard. If the CP signal is determined to be within a second range by the EVCC, then the charging standard of the charging gun is determined to be the AC charging standard, wherein the minimum value within the second range is greater than the maximum value within the first range.

4. The method according to claim 2, characterized in that, The preset charging mode table also includes a preset regional standard corresponding to the resistance value and a charging current corresponding to the resistance value. The step of determining the first regional standard and AC charging current corresponding to the charging gun based on the PP signal by the OBC, and performing AC charging of the vehicle according to the first regional standard and the AC charging current, includes: The OBC obtains a preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table, which is used as the first regional standard corresponding to the charging gun; and obtains a charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, which is used as the AC charging current. The vehicle's power battery module (BMS) is activated via the OBC, and the BMS is controlled via the OBC to perform AC charging of the vehicle based on the first regional standard and the AC charging current.

5. The method according to claim 4, characterized in that, The step of determining the second regional standard and DC charging current corresponding to the charging gun based on the PP signal by the EVCC, and performing DC charging of the vehicle according to the second regional standard and the DC charging current, includes: The EVCC obtains a preset regional standard corresponding to the resistance value represented by the PP signal from the preset charging mode table, which is used as the second regional standard corresponding to the charging gun. It also obtains a charging current corresponding to the resistance value represented by the PP signal from the preset charging mode table, which is used as the DC charging current. The EVCC outputs a hard-wired signal to the BMS to wake up the BMS and controls the BMS to perform DC charging of the vehicle based on the second regional standard and the DC charging current.

6. The method according to any one of claims 1-5, characterized in that, The step of sending the PP signal to the vehicle's on-board charger (OBC) via the EVCC includes: The PP signal is sent to the OBC via the EVCC using the enhanced bus ECAN.

7. The method according to any one of claims 1-5, characterized in that, The method further includes: If the type of the vehicle plug is a discharge gun, then the PP signal is sent to the vehicle's OBC and the vehicle's VCU via the EVCC based on the vehicle's ECAN. The OBC responds to a discharge command and determines the target current based on the PP signal, the discharge command, and the discharge parameters of the OBC, wherein the discharge command is output by the VCU based on the PP signal transmitted in the ECAN. The discharge gun is controlled by the OBC to discharge based on the target current.

8. A charging control device, characterized in that, The device includes: The PP signal and CP signal acquisition module is used to acquire the proximity signal PP signal and the control guidance signal CP signal corresponding to the vehicle's charging port through the vehicle's electric vehicle charging controller EVCC. The charging standard determination module is used to determine the charging standard corresponding to the charging gun through the EVCC based on the PP signal and the CP signal if the type of the vehicle plug is a charging gun. An AC charging module is used to send the PP signal to the vehicle's on-board charger (OBC) via the EVCC if the charging standard is an AC charging standard. The OBC then determines the first regional standard and AC charging current corresponding to the charging gun based on the PP signal and performs AC charging of the vehicle according to the first regional standard and the AC charging current. A DC charging module is used to determine the second regional standard and DC charging current corresponding to the charging gun through the EVCC based on the PP signal if the charging standard is a DC charging standard, and to perform DC charging of the vehicle according to the second regional standard and the DC charging current.

9. An electronic device, characterized in that, include: One or more processors; Memory; One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications being configured to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium contains program code that can be invoked by a processor to execute the method as described in any one of claims 1-7.

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