Vehicle charging control method, device, equipment and vehicle

Abstract

The application discloses a vehicle charging control method, device and equipment and a vehicle, and relates to the technical field of vehicles. The vehicle charging control method comprises the following steps: if the charging function of the vehicle is activated, receiving entering charging function indication information; if the entering charging function indication information indicates that the vehicle meets the first preset condition for entering the charging function, controlling the vehicle to start the charging function; if the power battery discharge power is greater than or equal to the charging device output power and the duration is greater than or equal to the first preset time length under the condition that the vehicle starts the charging function, controlling the electronic equipment of the vehicle causing the power battery to discharge to be turned off; and if the power battery discharge power is greater than or equal to the charging device output power and the duration is greater than or equal to the second preset time length after the electronic equipment of the vehicle is controlled to be turned off, controlling the vehicle to exit the charging function, wherein the second preset time length is less than the first preset time length, so that the charging safety of the hybrid vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle charging control method, device, equipment and vehicle. Background Art

[0002] Currently, new energy hybrid vehicles are gaining increasing attention from manufacturers. Hybrid vehicles are vehicles that derive their power from at least two energy sources: the engine consumes fuel, and the drive motor consumes electricity. Compared to traditional vehicle power systems, hybrid vehicles incorporate additional high-voltage components such as a drive motor, power battery, and DC-DC converters. Because hybrid vehicles have these components, the charging process involves controlling these high-voltage components. Therefore, a sound control method can significantly improve the safety and stability of vehicle charging.

[0003] The charging method for hybrid vehicles in related technologies mainly focuses on improving the charging efficiency, resulting in low charging safety of hybrid vehicles. Summary of the Invention

[0004] The main purpose of the embodiments of the present application is to provide a vehicle charging control method, device, equipment and vehicle, aiming to improve the charging safety of hybrid vehicles.

[0005] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application proposes a vehicle charging control method, comprising the following steps: when the charging function of the vehicle is activated, receiving an indication information for entering the charging function, wherein the indication information for entering the charging function is used to indicate whether the vehicle meets a first preset condition for entering the charging function; if the indication information for entering the charging function indicates that the vehicle meets the first preset condition for entering the charging function, controlling the vehicle to start the charging function; when the vehicle starts the charging function, if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a first preset time length, controlling the electronic equipment of the vehicle that causes the power battery to discharge to be turned off; after controlling the electronic equipment of the vehicle to be turned off, if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a second preset time length, controlling the vehicle to exit the charging function, wherein the second preset time length is less than the first preset time length.

[0006] In some embodiments, the vehicle charging control method further includes: controlling the vehicle to exit the charging function when an exit charging function indication information is received and / or the vehicle completes charging, wherein the exit charging function indication information is used to indicate whether the vehicle meets a second preset condition for exiting the charging function.

[0007] In some embodiments, controlling the vehicle to exit the charging function includes: updating the signal status of multiple first timing signals according to a first precondition to enable the vehicle to exit the charging function, wherein the first precondition is used to characterize the conditions that need to be met to update the signal status of the first timing signal.

[0008] In some embodiments, controlling the vehicle to start the charging function includes: updating the signal status of multiple second timing signals according to a second precondition to enable the vehicle to start the charging function, and the second precondition is used to represent the conditions that need to be met to update the signal status of the second timing signal.

[0009] In some embodiments, the vehicle charging control method further includes: when the vehicle starts the charging function, if the key state is switched from a locked state or an activated state to an ignition state, the vehicle is controlled to continue charging; if the key state is switched from a locked state or an activated state to a started state, the vehicle power system state is set to high-voltage power-up incomplete, and the vehicle is controlled to continue charging; the activation state is used to characterize that the vehicle's accessory circuit is in an on state.

[0010] In some embodiments, the vehicle charging control method further includes: heating the power battery if a power battery heating request signal is received; and controlling the vehicle to start a charging heating function when the temperature of the power battery is greater than or equal to a preset temperature.

[0011] In some embodiments, the control of the vehicle to start the charging and heating function includes at least one of the following: when the vehicle meets the conditions for starting the charging and heating function, receiving a charging pile output voltage indication signal, the charging pile output voltage indication signal is used to indicate whether the charging pile output voltage reaches the power battery voltage, if the charging pile output voltage indication signal indicates that the voltage output of the charging pile reaches the power battery voltage, then controlling the charging relay and the pre-charging relay to close in sequence; receiving voltage difference indication information, the voltage difference indication information is used to indicate whether the difference between the motor bus voltage and the power battery voltage is less than or equal to a preset voltage value, if the voltage difference indication information indicates that the difference between the motor bus voltage and the power battery voltage is less than or equal to the preset voltage value, then controlling the main relay to close, the pre-charging relay to disconnect, controlling the charging device to output a constant voltage to provide the energy required for power battery heating; controlling the positive temperature coefficient thermistor to close; and controlling the DC converter to enable.

[0012] In some embodiments, the vehicle charging control method further includes: in response to charging heating function abnormality information, controlling the vehicle to exit the charging heating function; the charging heating function abnormality information includes a charging pile output voltage indication signal indicating that the voltage output by the charging pile does not reach the power battery voltage, and a voltage difference indication information indicating that the difference between the motor bus voltage and the power battery voltage is always greater than a preset voltage value within a third preset time length.

[0013] In some embodiments, controlling the vehicle to exit the charging and heating function includes at least one of the following: disabling the DC converter from being enabled; controlling the positive temperature coefficient thermistor to be disconnected; when the positive temperature coefficient thermistor is disconnected, obtaining power battery current indication information, the power battery current indication information being used to indicate whether the power battery current is less than a preset current value; if the power battery current indication information indicates that the power battery current is less than the preset current value, controlling the power battery main relay and the DC charging relay to be closed in sequence; if the charging and heating is completed and no charging request information is received, sending a quick discharge instruction to the control drive motor controller.

[0014] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application proposes a vehicle charging control device, which includes: a receiving module for receiving, when the charging function of the vehicle is activated, an indication information for entering the charging function, wherein the indication information for entering the charging function is used to indicate whether the vehicle meets a first preset condition for entering the charging function; a first control module for controlling the vehicle to start the charging function if the indication information for entering the charging function indicates that the vehicle meets the first preset condition for entering the charging function; a second control module for controlling, when the vehicle starts the charging function, the electronic equipment of the vehicle that causes the power battery to discharge to be turned off if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a first preset duration; a third control module for controlling the vehicle to exit the charging function after controlling the electronic equipment of the vehicle to be turned off if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a second preset duration, wherein the second preset duration is less than the first preset duration.

[0015] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application provides an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the above-mentioned vehicle charging control method when executing the computer program.

[0016] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application provides a vehicle, which includes a vehicle charging control device of the above-mentioned embodiment or an electronic device of the above-mentioned embodiment.

[0017] The embodiments of the present application include at least the following beneficial effects:

[0018] The present application provides a vehicle charging control method, device, equipment and vehicle. In an embodiment of the present application, if the charging function of the vehicle is activated, an indication information for entering the charging function is received, and the indication information for entering the charging function is used to indicate whether the vehicle meets the first preset condition for entering the charging function; if the indication information for entering the charging function indicates that the vehicle meets the first preset condition for entering the charging function, the vehicle is controlled to start the charging function; when the vehicle starts the charging function, if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to the first preset time length, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off; after the electronic equipment of the vehicle is controlled to be turned off, if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to the second preset time length, the vehicle is controlled to exit the charging function, wherein the second preset time length is less than the first preset time length. By controlling the vehicle to start the charging function when the vehicle meets the first preset condition for entering the charging function, the driving performance of the vehicle is avoided from being affected by the arbitrary activation of the charging function, thereby improving the driving safety of the vehicle; when the vehicle starts the charging function, if the discharge power of the power battery is greater than or equal to the output power of the charging device and the duration is greater than or equal to the first preset time, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off, so as to ensure the smooth charging of the power battery and avoid the safety hazards caused by excessive discharge of the battery. After the electronic equipment of the vehicle is controlled to be turned off, if the discharge power of the power battery is greater than or equal to the output power of the charging device and the duration is greater than or equal to the second preset time, the vehicle is controlled to exit the charging function, which can avoid the power battery system from working under high load for a long time and the risk of overheating or damage, thereby improving the charging safety of hybrid vehicles.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic diagram of the power system structure of a hybrid vehicle provided by some embodiments of the present application;

[0022] Figure 2 is a flow chart of a vehicle charging control method provided by some embodiments of the present application;

[0023] Figure 3is a flow chart of starting a vehicle charging function provided by some embodiments of the present application;

[0024] Figure 4 This is a schematic diagram of a signal trigger timing sequence for starting a vehicle charging function provided in some embodiments of the present application;

[0025] Figure 5 This is a schematic diagram of a signal triggering timing for exiting a vehicle charging function provided in some embodiments of the present application;

[0026] Figure 6 is a schematic block diagram of a module of a vehicle charging control device provided by some embodiments of the present application;

[0027] Figure 7 This is a schematic diagram of the hardware structure of an electronic device provided in some embodiments of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the reference to "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. They are merely examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the appended claims.

[0029] It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various concepts, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0030] The terms "at least one", "plurality", "each", "any", etc. used in this application include "at least one", "two" or more, "plurality" or "each", "any" or "any one", "each" or "any one" as used herein.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0032] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0033] In order to make the inventive concept of the present application easy to understand, before explaining the embodiments of the present application in detail, the English abbreviations (terms) / related concepts involved in the embodiments of the present application are first explained. The English abbreviations (terms) / related concepts involved in the embodiments of the present application are subject to the following explanations.

[0034] HCU: HCU stands for Hybrid Control Unit, which refers to the vehicle controller.

[0035] MCU: MCU stands for Motor Control Unit, which refers to the drive motor controller.

[0036] BMS: BMS stands for Battery Management System, which refers to the battery management system.

[0037] EMS: EMS stands for Engine Management System, which refers to the engine controller.

[0038] TCU: TCU stands for Transmission Control Unit, which refers to the transmission controller.

[0039] BCM: BCM stands for Body Control Unit, which refers to the body controller.

[0040] SOC: SOC stands for State of Charge and refers to the battery's state of charge. It represents the percentage of the battery's current remaining capacity compared to its total capacity when fully charged. SOC values ​​typically range from 0% to 100%. 0% indicates the battery is completely discharged, with no remaining charge. 100% indicates the battery is fully charged, reaching its maximum capacity.

[0041] Currently, new energy hybrid vehicles are gaining increasing attention from manufacturers. Hybrid vehicles are vehicles that derive their power from at least two energy sources: the engine consumes fuel, and the drive motor consumes electricity. Compared to traditional vehicle power systems, hybrid vehicles incorporate additional high-voltage components such as a drive motor, power battery, and DC-DC converters. Because hybrid vehicles have these components, the charging process involves controlling these high-voltage components. Therefore, a sound control method can significantly improve the safety and stability of vehicle charging.

[0042] The charging method for hybrid vehicles in related technologies mainly focuses on improving the charging efficiency, resulting in low charging safety of hybrid vehicles.

[0043] In view of this, the present application proposes a vehicle charging control method, device, equipment and vehicle. When the charging function of the vehicle is activated, the solution receives an indication information for entering the charging function, and the indication information for entering the charging function is used to indicate whether the vehicle meets the first preset condition for entering the charging function; if the indication information for entering the charging function indicates that the vehicle meets the first preset condition for entering the charging function, the vehicle is controlled to start the charging function; when the vehicle starts the charging function, if the duration of the power battery discharge power being greater than or equal to the output power of the charging device is greater than or equal to the first preset time, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off; after the electronic equipment of the vehicle is controlled to be turned off, if the duration of the power battery discharge power being greater than or equal to the output power of the charging device is greater than or equal to the second preset time, the vehicle is controlled to exit the charging function, wherein the second preset time is less than the first preset time. By controlling the vehicle to start the charging function when the vehicle meets the first preset condition for entering the charging function, the driving performance of the vehicle is avoided from being affected by the arbitrary activation of the charging function, thereby improving the driving safety of the vehicle; when the vehicle starts the charging function, if the discharge power of the power battery is greater than or equal to the output power of the charging device and the duration is greater than or equal to the first preset time, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off, so as to ensure the smooth charging of the power battery and avoid the safety hazards caused by excessive discharge of the battery. After the electronic equipment of the vehicle is controlled to be turned off, if the discharge power of the power battery is greater than or equal to the output power of the charging device and the duration is greater than or equal to the second preset time, the vehicle is controlled to exit the charging function, which can avoid the power battery system from working under high load for a long time and the risk of overheating or damage, thereby improving the charging safety of hybrid vehicles.

[0044] The method provided in the embodiment of the present application can be applied to the power system of a hybrid vehicle. Figure 1 , Figure 1This is a schematic diagram of the power system structure of a hybrid vehicle provided in some embodiments of the present application.

[0045] The power system is mainly composed of assembly components such as the engine, drive motor, power battery, gearbox, clutch, transmission mechanism, charger, DC converter, etc., as well as controllers corresponding to each power assembly component.

[0046] The controllers include engine controller, vehicle controller, drive motor controller, battery management system, transmission controller, DC converter, instrument display (IC, Instrument Cluster), body controller, charging device controller (CDU, Charging Device Control Unit), intelligent network system controller (INSC, Internet System Control), and air conditioning controller (HVAC, Heating, Ventilation and Air Conditioning).

[0047] Each controller communicates via the CAN network. The HCU is the vehicle's core controller, coordinating and controlling other subsystems. The EMS controls the engine, the MCU controls the drive motor, the BMS controls the power battery, the TCU controls the transmission, the DC-DC converter performs current conversion, the IC displays various system information, the CDU controls the charging device, the HVAC controls the air conditioning, the INSC monitors intelligent connectivity information and notifies the user of the vehicle's charging status via the app, and the BCM controls the on / off lighting of the DC charging port.

[0048] In the embodiments provided herein, the BMS controls the closing and opening of the high-voltage relay based on HCU signal instructions, determines whether the power battery is ready for charging, determines whether the power battery is charging, enables the charging device based on HCU signal instructions, transmits the power battery temperature to the HCU, and receives charging connection signals. The HCU is responsible for determining whether the vehicle meets the charging function entry conditions and for completing the charging function startup and exit.

[0049] The following describes in detail the implementation steps of a vehicle charging control method provided by an embodiment of the present application with reference to the accompanying drawings.

[0050] Please refer to Figure 2 , Figure 2 Flowcharts of vehicle charging control methods provided in some embodiments of the present application. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be performed in a different order than shown here.

[0051] The method of the embodiment of the present application includes the following steps:

[0052] Step 201: When a charging function of a vehicle is activated, receiving charging function entry indication information, the charging function entry indication information being used to indicate whether the vehicle meets a first preset condition for entering the charging function;

[0053] Step 202: If the charging function entry instruction information indicates that the vehicle meets the first preset condition for entering the charging function, controlling the vehicle to start the charging function;

[0054] Step 203: When the vehicle starts charging, if the power battery discharge power is greater than or equal to the output power of the charging device for a duration greater than or equal to a first preset duration, control the electronic equipment of the vehicle that causes the power battery discharge to be turned off;

[0055] Step 204: After controlling the electronic devices of the vehicle to be turned off, if the duration during which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a second preset time, control the vehicle to exit the charging function, wherein the second preset time is less than the first preset time.

[0056] In steps 201 to 204 shown in the embodiment of the present application, by controlling the vehicle to start the charging function when the vehicle meets the first preset condition for entering the charging function, the driving performance of the vehicle is avoided from being affected by the random activation of the charging function, thereby improving the driving safety of the vehicle; when the vehicle starts the charging function, if the discharge power of the power battery is greater than or equal to the output power of the charging device for a duration greater than or equal to a first preset time, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off, so as to ensure the smooth charging of the power battery and avoid the safety hazards caused by excessive discharge of the battery; after the electronic equipment of the vehicle is controlled to be turned off, if the discharge power of the power battery is greater than or equal to the output power of the charging device for a duration greater than or equal to a second preset time, the vehicle is controlled to exit the charging function, which can avoid the risk of overheating or damage to the power battery system working under high load for a long time, thereby improving the charging safety of the hybrid vehicle.

[0057] The specific implementation methods of the above steps are introduced below.

[0058] It should be understood that the vehicle charging control method involved in the technical solution of the present application is applicable to DC charging and AC charging of vehicles. For DC charging and AC charging, there may be inconsistencies in the control signal names and device names, but this will not affect its own operation and control methods.

[0059] In step 201 , when a charging function of a vehicle is activated, charging function entry indication information is received, where the charging function entry indication information is used to indicate whether the vehicle meets a first preset condition for entering the charging function.

[0060] If the vehicle detects that the charging function is activated, it can determine whether to start the charging function. Among them, whether to start the charging function depends on whether the vehicle meets some conditions for entering charging (first preset conditions). It should be understood that these conditions can be multiple conditions or one condition.

[0061] The vehicle can activate the charging function in a variety of ways. For example, the charging function can be activated through a physical button or switch; the charging function can be activated through the vehicle system. The user can enter the charging management interface through the vehicle's central control touch screen to set up charging and activate the charging function, or use the voice control function of the vehicle information system to activate charging according to instructions; the charging function can be activated through a smart key or mobile phone application. The smart key can be used to remotely control the opening and closing of the charging port cover and the activation of the charging function, or the mobile phone application can be used to remotely control the vehicle's charging function, and charging can be started or stopped without entering the vehicle. It should be understood that the activation method of the charging function is related to the vehicle model itself and the design of the charging system. This application does not limit the activation method of the charging function.

[0062] Whether the vehicle meets one or more conditions for entering charging can be indicated by charging function indication information. The charging function indication information can be a flag bit. For example, if the charging function indication information is "1", it means that the vehicle meets the conditions for entering charging. If the charging function indication information is "0", it means that the vehicle does not meet the conditions for entering charging.

[0063] For example, the conditions for a vehicle to enter charging may include:

[0064] 1) The HCU receives the DC charging gun electronic lock status from the BCM and it is reliably locked;

[0065] 2) The gear position signal received by the HCU from the TCU is P gear or N gear;

[0066] 3) The HCU receives the DC charging port connection status sent by the CDU as fully connected;

[0067] 4) The HCU monitors that the high-voltage system is fault-free and no faults that could affect DC charging power-up occur;

[0068] 5) The HCU receives the power battery DC charging request signal BMSCrgeDCReq=1 sent by the BMS, where 1 indicates a charging request and 0 indicates no charging request;

[0069] 6) HCU receives BMSandCrgeShk=1 from BMS, where 1 indicates that the handshake protocol between the power battery and the charging pile or external charging device is successful, and 0 indicates that the handshake protocol between the power battery and the charging pile or external charging device is unsuccessful;

[0070] 7) The HCU receives feedback from the CDU on the temperature sensor 1 and temperature sensor 2 on the charging device, and both temperatures do not exceed 80°C (calibrable).

[0071] It should be understood that the HCU triggers the charging function to start when all of the above conditions are met. If these conditions are not met simultaneously within a preset time period (for example, 10 seconds), the HCU will control the condition determination of the charging function to exit, i.e., DC charging has failed. The HCU will then inform the user of the reason for DC charging failure through the instrument display, INSC, and mobile app.

[0072] The embodiment provided in the present application receives charging function entry indication information when the charging function of the vehicle is activated, thereby indicating whether the vehicle meets the first preset condition for entering the charging function, thereby providing a basis for whether subsequent vehicles enter the charging function.

[0073] In step 202 , if the charging function entry instruction information indicates that the vehicle meets a first preset condition for entering the charging function, the vehicle is controlled to start the charging function.

[0074] For example, when the vehicle meets the seven conditions provided above, the charging function can be triggered to start through the HCU.

[0075] In some embodiments, controlling the vehicle to start the charging function can be achieved by updating the signal states of multiple second timing signals according to the second precondition, wherein the second precondition can be used to represent the conditions that need to be met for updating the signal states of the second timing signals.

[0076] Taking DC charging as an example, please refer to Figure 3 , Figure 3This is a flowchart of the vehicle charging function provided by some embodiments of the present application. When the vehicle meets the seven charging conditions provided above, the HCU triggers the high-voltage power-on strategy control, that is, the HCU controls the vehicle power system to turn on the high voltage and controls the BMS to send the power battery high-voltage relay to close HVRelay = 1 (1 indicates that the high-voltage relay is closed, and 0 indicates that the high-voltage relay is disconnected); then, the HCU sends an enable signal to the DCDC, DCDCEnble = 1; controls the DCDC to send a working status signal to the HCU, DCDCSts = 1; the HCU sends a DC charging permission signal to the BMS, CrgeDCAllow = 1; further, controls the CDU to send a working status signal to the BMS, CrgerDCSts = 1; controls the BMS to send a battery DC charging status signal to the instrument, BatCrgeDCSts = 1; finally, the instrument lights up the DC charging status indicator, and the vehicle is in the DC charging process.

[0077] It should be understood that the aforementioned enable signal DCDCEnble, working state signal DCDCSts, DC charging enable signal CrgeDCAllow, working state signal CrgerDCSts and battery DC charging state signal BatCrgeDCSts can be regarded as second timing signals.

[0078] For details, please refer to Figure 4 , Figure 4 This is a schematic diagram of the signal trigger timing for starting the vehicle charging function provided in some embodiments of the present application. When the vehicle meets the DC charging function entry conditions, the HCU triggers the DC charging function to start. The control method and control timing are as follows:

[0079] 1) The HCU controls the high voltage of the vehicle power system and controls the BMS to send a signal to the HCU to close the power battery high voltage relay HVRelay = 1 (1 indicates that the high voltage relay is closed, and 0 indicates that the high voltage relay is open);

[0080] 2) When HVRelay=1, the HCU sends an enable signal DCDCEnble=1 to the DCDC (1 means enabled, 0 means disabled), and at the same time sends a signal CrgeDCAllow=1 to the BMS (1 means DC charging is allowed, 0 means DC charging is not allowed);

[0081] 3) When DCDCEnable=1 and CrgeDCAllow=1, the HCU receives the DCDC converter status signal as working, that is, DCDCSts=1 (1 indicates working state, 0 indicates non-working state);

[0082] 4) When DCDCSts=1, the CDU sends a charging device status signal CrgerDCSts=1 to the HCU and BMS (1 indicates that the charging device is in operation, and 0 indicates that the charging device is in non-operational state);

[0083] 5) When CrgerDCSts=1, control the BMS to send the battery DC charging status signal to the meter, BatCrgeDCSts=1.

[0084] The vehicle DC charging function startup completion judgment mark is: battery charging status signal BatCrgeDCSts=1, (0 indicates DC not charging, 1 indicates DC charging, 2 indicates DC charging is completed), HCU sends the DC charging indicator light signal CrgeDCLight=1 to the instrument (1 indicates the light is on, 0 indicates the light is off), and the instrument IC lights up the DC charging status indicator light.

[0085] It should be understood that the above-mentioned HVRelay=1 is the second precondition of the enable signal DCDCEnble and the DC charging permission signal CrgeDCAllow (the second timing signal), that is, when HVRelay=1, the enable signal DCDCEnble is converted (updated) from disabled to enabled, that is, the enable signal changes from 0 to 1, and the DC charging permission signal CrgeDCAllow is converted (updated) from charging not allowed to charging allowed, that is, the DC charging permission signal changes from 0 to 1; DCDCSts=1 is the second precondition of the working state signal CrgerDCSts, that is, when DCDCSts=1, the working state signal CrgerDCSts is converted from not running to running, that is, the working state signal changes from 0 to 1. The above-mentioned control timing steps and attached Figure 4 This has been described and demonstrated in detail and will not be repeated here.

[0086] Attachment Figure 4 In the case that the vehicle meets the charging entry conditions, the HVRelay signal is updated to 1 (or a high level) to indicate the closed state of the power battery high-voltage relay. After HVRelay = 1, the DCDCEnble signal and the CrgeDCAllow signal are updated from the disabled and charging not allowed states to the enabled state and charging allowed state respectively; after the DCDCEnble signal and the CrgeDCAllow signal are updated to the enabled state and charging allowed state, the DCDCSts signal is updated from the non-working state to the working state; after the DCDCSts signal is updated to the working state, the CrgerDCSts signal is updated from the non-operating state to the operating state; further, the BatCrgeDCSts signal is updated to charging, and then, the CrgeDCLight is updated from the off state to the constantly on state.

[0087] The embodiment of the present application realizes the vehicle starting charging function by updating the signal states of multiple second timing signals according to the second pre-sequence condition, thereby ensuring the reliability and success rate of vehicle charging start-up and avoiding vehicle charging start-up failure caused by timing confusion.

[0088] In some embodiments, when the vehicle starts the charging function, if the key state is switched from the locked state or the activated state to the ignition state, the vehicle is controlled to continue charging; if the key state is switched from the locked state or the activated state to the start state, the vehicle power system state is set to high-voltage power-up incomplete, and the vehicle is controlled to continue charging; the activation state is used to indicate that the vehicle's accessory circuit is in an on state.

[0089] For example, when the vehicle is in the process of DC charging, if the key switches from Key-OFF (locked state) or Key-ACC (activated state) to Key-ON (ignition state), the vehicle continues to charge; if the key switches to Key-Start (start state), the vehicle is unable to drive, that is, the power system state is not PTReady (vehicle power system high voltage power-up is not completed), and the vehicle charging function is not affected. This ensures the continuity and stability of vehicle charging.

[0090] In step 203 , if the vehicle starts the charging function and the duration during which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a first preset time, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off.

[0091] Taking DC charging as an example, when the vehicle key is in the Key-OFF or Key-ACC state, the vehicle begins charging after connecting the DC charging pile to the vehicle charging device using a charging cable. During the vehicle charging process, if the vehicle's air conditioning system is on, when the air conditioning system power exceeds the output power of the charging device and causes the battery discharge time to reach 15 minutes (the first preset time length, which is flexibly set), the HCU controls the air conditioning to stop enabling and notifies the user through the instrument panel or mobile phone app.

[0092] The electronic equipment of the vehicle that causes the power battery to discharge may include the air conditioning system, lighting system, infotainment system, and electric seats, etc., which is not limited in this application.

[0093] In the embodiment provided by the present application, when the charging function is started by the vehicle and the duration during which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a first preset time length, the electronic equipment of the vehicle that causes the power battery discharge is controlled to be turned off, thereby ensuring the smooth charging of the power battery and avoiding the safety hazards caused by excessive discharge of the battery.

[0094] In step 204 , after the electronic devices of the vehicle are controlled to be turned off, if the duration for which the power battery discharge power is greater than or equal to the output power of the charging device is greater than or equal to a second preset time period, the vehicle is controlled to exit the charging function.

[0095] Taking DC charging as an example, after the HCU controls the air conditioning to be disabled (turned off), if the power battery discharge power is still greater than or equal to the charger output power and this duration exceeds 5 minutes (the second preset duration, which can be flexibly set), the HCU should control the vehicle to exit battery charging and notify the user through the instrument cluster or mobile phone app. To further ensure charging safety, the second preset duration should be shorter than the first preset duration.

[0096] It should be understood that after the vehicle's electronic devices are turned off, the power battery discharge power may still be greater than or equal to the charging device output power. This may be because the user manually turned on the electronic device after the vehicle's electronic devices were turned off. For example, the HCU turned off the air conditioner, and the user manually turned it on. It may also be because the user manually turned on another electronic device after the vehicle's electronic devices were turned off. For example, the HCU turned off the air conditioner, and the user turned on the infotainment system and lighting system.

[0097] The embodiment provided in the present application controls the vehicle to exit the charging function if the power battery discharge power is greater than or equal to the output power of the charging device for a duration greater than or equal to a second preset time after the electronic equipment of the vehicle is controlled to be turned off. This can avoid the risk of overheating or damage to the power battery system operating under high load for a long time, thereby improving the charging safety of hybrid vehicles.

[0098] In some embodiments, when the exit charging function indication information is received and / or the vehicle completes charging, the vehicle is controlled to exit the charging function, and the exit charging function indication information is used to indicate whether the vehicle meets a second preset condition for exiting the charging function.

[0099] If the vehicle completes charging and / or receives instruction information indicating that the vehicle meets the condition for exiting the charging function (second preset condition), the vehicle is controlled to exit the charging function. It should be understood that the second preset condition can be multiple conditions or one condition.

[0100] Whether the vehicle meets one or more conditions for exiting the charging function can be indicated by exiting the charging function indication information. The exiting charging function indication information can be a flag bit. For example, if the exiting charging function indication information is "1", it indicates that the vehicle meets the conditions for exiting charging. If the exiting charging function indication information is "0", it indicates that the vehicle does not meet the conditions for exiting charging.

[0101] For example, the conditions for the vehicle to exit charging may include:

[0102] (1) The CDU detects that the DC charging port is not connected or abnormally connected;

[0103] (2) The HCU detects a fault in the vehicle's power system, which affects charging. That is, a high-voltage power failure occurs, and charging stops;

[0104] (3) The power battery charging request signal BMSCrgeDCReq=0 sent by the BMS to the HCU (1 indicates a DC charging request, 0 indicates no DC charging request);

[0105] (4) The HCU receives the DC charging pile status from the CDU as active stop;

[0106] (5) The CDU detects temperature sensor 1 or temperature sensor 2 on the DC charging device, and the temperature reported by one of the temperature sensors exceeds 80°C (calibration is possible);

[0107] (6) The battery DC charging permission signal CrgeDCAllow=0 sent by the HCU to the BMS, that is, the battery DC charging permission signal changes from charging permission to charging permission. After that, within 3 minutes (which can be calibrated), the CDU continues to send the charging device status signal CrgerDCSts=0 (0 means not running, 1 means running);

[0108] (7) If the HCU determines that the power battery output current is greater than or equal to 1A (calibrable) and lasts for 15 minutes, the HCU prohibits the air conditioner high voltage from being enabled. After the HCU prohibits the air conditioner high voltage from being enabled, if the HCU determines that the power battery continues to output a current greater than or equal to 1A (calibrable) for 5 minutes, the HCU controls the charging process to exit.

[0109] (8) After the HCU sends the battery DC charging permission signal CrgeDCAllow = 1 to the BMS, the BMS continuously reports BatCrgeDCSts = 0 within a certain period of time (3 minutes, calibrable), (0 indicates DC not charging, 1 indicates DC charging, and 2 indicates DC charging completed);

[0110] (9) The signal CrgeDCMd_INSC sent by the INSC to the HCU is 1 (1 indicates immediate charging, 0 indicates timed charging) and the signal InstCrgeReq is 0 (0 indicates immediate DC charging stop, 1 indicates immediate DC charging start);

[0111] (10) The signal CrgeDCMd_INSC sent by the INSC to the HCU is 0 (0 indicates scheduled charging, 1 indicates immediate charging) and the signal TimCrgeReq is 0 (0 indicates scheduled DC charging is stopped, 1 indicates scheduled DC charging is started);

[0112] (11) The HCU receives the charging port electronic lock status from the BCM, which is unlocked.

[0113] It should be understood that if any of the above conditions are met, the HCU will trigger the charging function to be terminated. The HCU will then inform the user of the reason for the charging function termination through the instrument display, INSC and mobile phone app.

[0114] In some embodiments, controlling the vehicle to exit the charging function can be achieved by updating the signal states of multiple first timing signals according to a first precondition, where the first precondition is used to represent the conditions that need to be met for updating the signal states of the first timing signals.

[0115] Taking DC charging as an example, when the vehicle completes charging or meets any of the above charging exit conditions, the following steps are performed:

[0116] (1) HCU sends an enable signal DCDCEnble=0 (1 means enable, 0 means disable) to DCDC, prohibiting DCDC from being enabled;

[0117] (2) The HCU sends an air conditioning enable signal CondACON = 0 to the HVAC (0 means the air conditioning is off, 1 means the air conditioning is on);

[0118] (3) When DCDCEnble = 0, the HCU sends a DC charging permission signal CrgeDCAllow = 0 to the BMS (0 means DC charging is not allowed, 1 means DC charging is allowed), and the BMS and CDU control the DC charging pile to stop output;

[0119] (4) After CrgeDCAllow=0, the CDU sends the charging device working status signal CrgerDCSts=0 to the HCU (0 means not running, 1 means running)

[0120] (5) After CrgerDCSts=0, the BMS sends the power battery current signal to the HCU, and the HCU determines whether the power battery current BatCurt is less than 3.5A (calibrable);

[0121] (6) If BatCurt is less than 3.5A (calibrable), the HCU controls the vehicle high voltage to be powered off, and the HCU sends a command to the BMS to disconnect the main relay;

[0122] (7) Control the BMS to send a signal to the HCU indicating that the high-voltage relay of the power battery is closed (HVRelay=0) (1 indicates that the high-voltage relay is closed, and 0 indicates that the high-voltage relay is disconnected).

[0123] The HCU controls the vehicle power system to complete high-voltage power-down. After a specified time, the vehicle controller enters sleep mode.

[0124] It should be understood that the above-mentioned enable signal DCDCEnble, air conditioning enable signal CondACON, DC charging permission signal CrgeDCAllow, charging device working status signal CrgerDCSts, power battery current signal BatCurt and power battery high-voltage relay closure HVRelay can be regarded as the first timing signal.

[0125] The vehicle charging function exit completion judgment mark is: the power battery high-voltage relay is closed HVRelay=0.

[0126] It should be understood that the above-mentioned DCDCEnble=0 is the first precondition of the DC charging enable signal CrgeDCAllow (first timing signal), that is, when DCDCEnble=0, the DC charging enable signal CrgeDCAllow is converted (updated) from allowing charging to not allowing charging, that is, the DC charging enable signal changes from 1 to 0; CrgeDCAllow=0 is the first precondition of the working state signal CrgerDCSts, that is, when CrgeDCAllow=0, the working state signal CrgerDCSts is converted from running to not running, that is, the working state signal changes from 1 to 0. The above-mentioned exit charging steps and the attached Figure 5 This has been described and demonstrated in detail and will not be repeated here.

[0127] The embodiments of this application provide Figure 5 In the case that the vehicle meets any of the charging exit conditions, the DCDCEnble signal and the CondACON signal are updated from the enabled state and the open state to the disabled state and the closed state respectively; after the DCDCEnble signal is updated from the enabled state to the disabled state, the CrgeDCAllow signal is updated to the charging not allowed state; after the CrgeDCAllow signal is updated to the charging not allowed state, the CrgerDCSts signal is updated from the running state to the non-running state; thereafter, when the BatCurt signal indicates that the current is less than the specified value, the HVRelay signal is updated to 0, indicating that the main relay is disconnected.

[0128] The embodiment of the present application realizes the vehicle exit charging function by updating the signal status of multiple first timing signals according to the first pre-condition, thereby ensuring the reliability and success rate of the vehicle exit charging process, and avoiding the failure of vehicle charging exit caused by timing confusion and the resulting safety accidents.

[0129] In some embodiments, if a power battery heating request signal is received, the power battery is heated; when the temperature of the power battery is greater than or equal to a preset temperature, the vehicle is controlled to start a charging heating function.

[0130] For example, with the vehicle key in the KEY-OFF or KEY-ACC position, the DC charging cable connected, and the DC charger activated, the vehicle will enter the DC charging process. If the power battery temperature is too low, the water heating system will automatically detect this and issue a power battery heating request signal, then heat the power battery. Charging will resume only after the power battery temperature reaches the required level. If a fault with the DC charger or vehicle is detected during charging, the vehicle will automatically exit the charging process.

[0131] In some embodiments, controlling the vehicle to activate the charging and heating function includes at least one of the following:

[0132] When the vehicle meets the conditions for starting the charging and heating function, the charging pile output voltage indication signal is received. The charging pile output voltage indication signal is used to indicate whether the charging pile output voltage has reached the power battery voltage. If the charging pile output voltage indication signal indicates that the charging pile output voltage has reached the power battery voltage, the charging relay and the pre-charging relay are controlled to close in sequence;

[0133] receiving voltage difference indication information, the voltage difference indication information being used to indicate whether the difference between the motor bus voltage and the power battery voltage is less than or equal to a preset voltage value; if the voltage difference indication information indicates that the difference between the motor bus voltage and the power battery voltage is less than or equal to the preset voltage value, controlling the main relay to close and the pre-charging relay to open, controlling the charging device to output a constant voltage to provide energy required for heating the power battery;

[0134] Control the positive temperature coefficient thermistor to close;

[0135] Controls the DC converter enable.

[0136] Exemplarily, the control method for triggering the vehicle to enter the charging and heating mode may include one or more of the following steps:

[0137] 1) After the HCU determines that the charging and heating function conditions are met, it sends a "DC charging permission signal = 1" (1 means permission, 0 means non-application);

[0138] 2) After the HCU determines that the "DC charging pile output voltage signal" reaches the current power battery voltage, it closes the DC charging relay and pre-charging relay in sequence, uses the DC charging pile for pre-charging, and jumps to step 4);

[0139] 3) If after 5 minutes, the HCU determines that the "DC charging pile output voltage signal" does not reach the current power battery voltage, the HCU controls the DC charging heating power-on function to exit;

[0140] 4) After closing the high-voltage pre-charge relay, the HCU determines that the voltage difference between the motor bus voltage and the power battery voltage is less than 20V (calibrable), the HCU determines that pre-charging is complete, and jumps to step 5). If the high-voltage pre-charge relay is closed for 5 minutes and the HCU determines that the voltage difference between the motor bus voltage and the battery voltage is still not less than 20V (calibrable), the HCU controls the DC charging and heating mode to power on and exit;

[0141] 5) The HCU sends a CAN signal to the BMS, which closes the main relay and disconnects the pre-charge relay in sequence. The CDU controls the constant voltage output of the charging device to provide energy for heating the power battery.

[0142] 6) HCU sends a positive temperature coefficient thermistor closing signal to BMS, and BMS controls the positive temperature coefficient thermistor to close;

[0143] 7) The HCU sends a signal to the DCDC to enable the DCDC, and the DC charging and heating function control is started.

[0144] In some embodiments, in response to charging and heating function abnormality information, the vehicle is controlled to exit the charging and heating function; the charging and heating function abnormality information includes a charging pile output voltage indication signal indicating that the voltage output by the charging pile does not reach the power battery voltage, and a voltage difference indication information indicating that the difference between the motor bus voltage and the power battery voltage is always greater than a preset voltage value within a third preset time length.

[0145] For example, if after 5 minutes, the HCU determines that the "DC charging pile output voltage signal" does not reach the current power battery voltage, the HCU controls the DC charging heating power-on function to exit.

[0146] For example, if the high-voltage pre-charging relay is closed for 5 minutes, the HCU determines that the voltage difference between the motor bus voltage and the battery voltage is still not less than 20V (calibrable), and the HCU controls the DC charging heating mode to power on and exit.

[0147] In some embodiments, controlling the vehicle to exit the charging and heating function includes at least one of the following:

[0148] Disable the DC converter enable;

[0149] Control the positive temperature coefficient thermal relay to disconnect;

[0150] When the positive temperature coefficient thermistor relay is disconnected, power battery current indication information is obtained, the power battery current indication information is used to indicate whether the power battery current is less than a preset current value. If the power battery current indication information indicates that the power battery current is less than the preset current value, the power battery main relay and the DC charging relay are controlled to be closed in sequence;

[0151] If charging and heating are completed and no charging request information is received, a fast discharge instruction is sent to the control drive motor controller.

[0152] Exemplarily, in the DC charging and heating mode, controlling the vehicle to exit the charging and heating function includes the following steps:

[0153] 1) HCU sends a CAN signal to DCDC to disable DCDC;

[0154] 2) HCU sends a command to disconnect the positive temperature coefficient thermistor to BMS, and BMS disconnects the positive temperature coefficient thermistor;

[0155] 3) After the HCU determines that the DCDC working state is disabled, the HCU sends a "DC charging and heating permission signal = 0" to the BMS (0 means DC charging and heating is not allowed, 1 means DC charging and heating is allowed);

[0156] 4) If the HCU determines that the power battery current is less than 3.5A (calibrable), execute steps 5) and 6). If the power battery current is greater than 3.5A (calibrable), wait for 5 seconds and then execute steps 5) and 6.

[0157] 5) HCU controls the disconnection of the power battery main relay and DC charging relay in sequence;

[0158] 6) If the HCU determines that DC charging and heating are completed and there is no DC charging request, it sends a fast discharge instruction to the MCU. If the HCU determines that DC charging and heating are completed and there is a DC charging request, it does not send a fast discharge instruction to the MCU;

[0159] 7) The DC charging and heating function control exit is completed.

[0160] The embodiments provided in this application improve the safety of the power battery charging and heating function by controlling the start and exit of charging and heating.

[0161] The above is an introduction to the embodiment of the vehicle charging control method of the present application.

[0162] The implementation of the vehicle charging control device provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0163] Regarding the vehicle charging control method provided in the above embodiment, the embodiment of the present application also provides a vehicle charging control device for implementing the above method, such as Figure 6 As shown, Figure 6 This is a schematic block diagram of a vehicle charging control device according to an embodiment of the present application. The vehicle charging control device 600 includes:

[0164] A receiving module 601 is configured to receive charging function entry indication information when the charging function of the vehicle is activated, where the charging function entry indication information is used to indicate whether the vehicle meets a first preset condition for entering the charging function;

[0165] A first control module 602 is configured to control the vehicle to start the charging function if the charging function entry instruction information indicates that the vehicle meets a first preset condition for entering the charging function;

[0166] A second control module 603 is configured to, when the charging function of the vehicle is activated, control the electronic devices of the vehicle that cause the power battery to discharge to shut down if the power battery discharge power is greater than or equal to the output power of the charging device for a duration greater than or equal to a first preset duration;

[0167] The third control module 604 is used to control the vehicle to exit the charging function after controlling the electronic equipment of the vehicle to be turned off, if the duration of the power battery discharge power being greater than or equal to the output power of the charging device is greater than or equal to a second preset time, wherein the second preset time is less than the first preset time.

[0168] It can be understood that the contents of the above method embodiments are all applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0169] like Figure 7 As shown, the embodiment of the present application further provides an electronic device 700, which includes a memory 701, one or more processors 702 ( Figure 7 Only one is shown) and a computer program stored in memory 701 and executable by processor 702. Memory 701 is used to store software programs and units. Processor 702 executes the software programs and units stored in memory 701 to perform various functional applications and data processing to obtain resources corresponding to the aforementioned preset events. Optionally, processor 702 implements the aforementioned vehicle charging control method by executing the aforementioned computer program stored in memory 701.

[0170] The memory 701, as a non-transitory computer readable medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 701 can include a high-speed random access memory, and can also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory 701 can optionally include a memory disposed remotely relative to the processor, which can be connected to the processor through a network.

[0171] It can be understood that the contents in the above method embodiments are all applicable to the electronic device embodiments, the electronic device embodiments specifically implement the same functions as the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0172] The electronic device provided in the embodiments of the present application can be used in the vehicle charging control device provided in the embodiments of the present application, and the vehicle charging control device provided in the embodiments of the present application can be used in the electronic device provided in the embodiments of the present application.

[0173] It can be understood that the contents in the above method embodiments are all applicable to the vehicle embodiments, the vehicle embodiments specifically implement the same functions as the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0174] The embodiments of the present application also provide a computer program product, the computer program product comprising a computer program, the computer program being capable of implementing the steps of the above vehicle charging control method when executed by one or more processors.

[0175] It can be understood that the contents in the above method embodiments are all applicable to the computer program product, the computer program product embodiments specifically implement the same functions as the above method embodiments, and achieve the same beneficial effects as the above method embodiments.

[0176] The embodiments described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0177] While specific embodiments are described herein, one of ordinary skill in the art will appreciate that many other modifications or alternative embodiments are within the scope of the present disclosure. For example, any of the functions and / or process capabilities described in connection with a particular device or component can be performed by any other device or component. Additionally, while various illustrative implementations and architectures have been described in accordance with embodiments of the present disclosure, one of ordinary skill in the art will appreciate that many other modifications to the illustrative implementations and architectures described herein are within the scope of the present disclosure.

[0178] Certain aspects of the present disclosure are described above with reference to block and flow diagrams of systems, methods, apparatuses and / or computer program products according to example embodiments. It will be understood that one or more blocks of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by

[0179] Thus, the blocks in the block diagrams and flow diagrams support combinations of means for performing the specified functions, combinations of elements or steps for performing the specified functions, and program instruction means for performing the specified functions. It will also be understood that each block of the block diagrams and flow diagrams, and combinations of blocks in the block diagrams and flow diagrams, can be implemented by dedicated hardware-based computer systems which perform the specified functions, or combinations of dedicated hardware and computer instructions.

[0180] The program modules, applications, and the like described herein can include one or more software components, including, for example, software objects, methods, data structures, and the like. Each such software component can include computer-executable instructions that, in response to execution, cause at least a portion of the functionality described herein (e.g., one or more operations of the illustrative methods described herein) to be performed.

[0181] Software component can be encoded with any one in various programming languages.A kind of exemplary programming language can be low-level programming language, such as the assembly language associated with specific hardware architecture and / or operating system platform.Comprise that the software component of assembly language instruction may need to be converted to executable machine code by assembler before being executed by hardware architecture and / or platform.Another exemplary programming language can be a more advanced programming language, and it can be transplanted across multiple architectures.Comprise that the software component of more advanced programming language may need to be converted to intermediate representation by interpreter or compiler before execution.Other examples of programming language include but are not limited to macro language, shell or command language, job control language, script language, database query or search language or report writing language.In one or more exemplary embodiments, the software component that comprises the instruction of one in the above-mentioned programming language example can be directly executed by operating system or other software component, without first being converted into another form.

[0182] Software components can be stored as files or other data storage structures. Software components of similar types or related functions can be stored together, such as in a specific directory, folder, or library. Software components can be static (e.g., preset or fixed) or dynamic (e.g., created or modified at execution time).

[0183] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A vehicle charging control method, characterized in that: The following steps are involved: When a charging function of the vehicle is activated, receiving charging function entry indication information, the charging function entry indication information being used to indicate whether the vehicle meets a first preset condition for entering the charging function; If the instruction information for entering the charging function indicates that the vehicle meets the first preset condition for entering the charging function, controlling the vehicle to start the charging function; When the charging function is activated on the vehicle, if the duration of the power battery discharge power being greater than or equal to the output power of the charging device is greater than or equal to a first preset time period, controlling the electronic equipment of the vehicle that causes the power battery discharge to be turned off; After controlling the electronic equipment of the vehicle to be turned off, if the duration for which the discharge power of the power battery is greater than or equal to the output power of the charging device is greater than or equal to a second preset time length, the vehicle is controlled to exit the charging function, wherein the second preset time length is less than the first preset time length.

2. The vehicle charging control method according to claim 1, characterized in that: The method further comprises: When the exit charging function instruction information is received and / or the vehicle completes charging, the vehicle is controlled to exit the charging function, where the exit charging function instruction information is used to indicate whether the vehicle meets a second preset condition for exiting the charging function.

3. The vehicle charging control method according to claim 1 or 2, characterized in that: The controlling the vehicle to exit the charging function includes: According to a first pre-sequence condition, the signal states of the plurality of first time sequence signals are updated to enable the vehicle to exit the charging function. The first pre-sequence condition is used to represent a condition that needs to be satisfied for updating the signal states of the first time sequence signals.

4. The vehicle charging control method according to claim 1, characterized in that: The controlling the vehicle to start the charging function includes: According to a second pre-sequence condition, the signal states of the plurality of second timing signals are updated to enable the vehicle to start the charging function, where the second pre-sequence condition is used to represent a condition that needs to be satisfied for updating the signal states of the second timing signals.

5. The vehicle charging control method according to claim 1, characterized in that: The method further comprises: When the charging function of the vehicle is activated, if the key state is switched from the locked state or the activated state to the ignition state, the vehicle is controlled to continue charging; If the key status is switched from locked or activated to started, the vehicle power system status is set to high-voltage power-up incomplete, and the vehicle is controlled to continue charging; The activation state is used to represent that the accessory circuit of the vehicle is in an on state.

6. The vehicle charging control method according to claim 1, characterized in that: The method further comprises: If a power battery heating request signal is received, the power battery is heated; When the temperature of the power battery is greater than or equal to a preset temperature, the vehicle is controlled to start a charging and heating function.

7. The vehicle charging control method according to claim 6, characterized in that: The controlling the vehicle to start the charging and heating function includes at least one of the following: When the vehicle meets the conditions for starting the charging and heating function, receiving a charging pile output voltage indication signal, the charging pile output voltage indication signal is used to indicate whether the charging pile output voltage reaches the power battery voltage, and if the charging pile output voltage indication signal indicates that the voltage output by the charging pile reaches the power battery voltage, controlling the charging relay and the pre-charging relay to close in sequence; receiving voltage difference indication information, the voltage difference indication information being used to indicate whether a difference between a motor bus voltage and a power battery voltage is less than or equal to a preset voltage value, and if the voltage difference indication information indicates that the difference between the motor bus voltage and the power battery voltage is less than or equal to the preset voltage value, controlling a main relay to close and a pre-charging relay to open, thereby controlling a charging device to output a constant voltage and thereby providing energy required for heating the power battery; Control the positive temperature coefficient thermistor to close; Controls the DC converter enable.

8. The vehicle charging control method according to claim 1, characterized in that: The method further comprises: In response to the abnormality information of the charging and heating function, controlling the vehicle to exit the charging and heating function; The charging heating function abnormality information includes a charging pile output voltage indication signal indicating that the voltage output by the charging pile does not reach the power battery voltage, and voltage difference indication information indicating that the difference between the motor bus voltage and the power battery voltage is always greater than a preset voltage value within a third preset time length.

9. The vehicle charging control method according to claim 8, characterized in that: The controlling the vehicle to exit the charging and heating function includes at least one of the following: Disable the DC converter enable; Control the positive temperature coefficient thermal relay to disconnect; When the positive temperature coefficient thermistor is disconnected, obtaining power battery current indication information, the power battery current indication information being used to indicate whether the power battery current is less than a preset current value; if the power battery current indication information indicates that the power battery current is less than the preset current value, controlling the power battery main relay and the DC charging relay to be closed in sequence; If charging and heating are completed and no charging request information is received, a fast discharge instruction is sent to the control drive motor controller.

10. A vehicle charging control device, characterized in that: The device comprises: a receiving module, configured to receive, when the charging function of the vehicle is activated, an indication information for entering the charging function, the indication information for entering the charging function being used to indicate whether the vehicle satisfies a first preset condition for entering the charging function; a first control module, configured to control the vehicle to start a charging function if the charging function entry instruction information indicates that the vehicle meets a first preset condition for entering the charging function; a second control module, configured to, when the charging function of the vehicle is activated, control the electronic equipment of the vehicle that causes the power battery to discharge to shut down if the discharge power of the power battery is greater than or equal to the output power of the charging device and the duration is greater than or equal to a first preset time period; A third control module is used to control the vehicle to exit the charging function after controlling the electronic equipment of the vehicle to be turned off, if the duration of the power battery discharge power being greater than or equal to the output power of the charging device is greater than or equal to a second preset time, wherein the second preset time is less than the first preset time.

11. An electronic device, characterized in that: The electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the vehicle charging control method according to any one of claims 1 to 9 when executing the computer program.

12. A vehicle, characterized in that: The vehicle includes the vehicle charging control device according to claim 10 or the electronic device according to claim 11.

Images