Charging method and device of vehicle, on-board charger and storage medium

Abstract

The application relates to a charging method and device of a vehicle, an on-board charger and a storage medium, which comprises the following steps: acquiring at least one charging parameter of a current power grid, and suspending charging for the vehicle when it is determined that the current OBC does not meet a preset charging condition, and continuously judging whether the current OBC meets the preset charging condition based on the at least one charging parameter, if the current OBC meets the preset charging condition within a preset time length, the charging for the vehicle is continued, otherwise, the charging for the vehicle is stopped. Thus, the problem that the vehicle stops charging and cannot meet the expected charging requirement caused by slow charging and gun jumping due to abnormal charging parameters such as voltage and power grid fluctuation frequency is solved, the stability of charging is optimized by changing the software program, the gun jumping situation in the charging process is reduced, and when the gun jumping situation occurs, a specific time can be reserved to wait for the OBC to recover to the working state, and the vehicle continues to be charged, thereby improving the charging experience of the user.

Description

Technical Field

[0001] This application relates to the field of vehicle charging technology, and in particular to a vehicle charging method, device, on-board charger and storage medium. Background Technology

[0002] With the vigorous development of the national new energy vehicle industry and the general trend of "dual carbon" goals, the market share of new energy vehicles is gradually increasing. Therefore, charging technology characterized by improving the charging service experience and charging service quality is the mainstream trend for the future development of the next generation of charging technology.

[0003] In related technologies, during the charging process, the charging gun's CC (Connection Confirm) signal is generally directly connected to GND (Ground), and the charging gun's CP (Clock Pulse) signal is generally directly connected to the charger, thereby completing the vehicle's charging purpose.

[0004] However, the above charging methods are prone to slow charging and tripping issues. During the charging process, the charging gun may trip due to abnormal grid voltage, charging equipment failure, vehicle malfunction, or loose charging cable. As a result, when charging at night, the user may not be able to reconnect the charging gun in time, causing the vehicle to stop charging and thus failing to meet the expected charging requirements. This reduces user satisfaction and urgently needs to be resolved. Summary of the Invention

[0005] This application provides a vehicle charging method, device, on-board charger, and storage medium to solve problems such as slow charging tripping caused by abnormal charging parameters such as voltage and power grid fluctuation frequency, which causes the vehicle to stop charging and fail to meet the expected charging requirements.

[0006] The first aspect of this application provides a method for charging a vehicle, comprising the following steps:

[0007] Obtain at least one charging parameter of the current power grid;

[0008] When it is determined, based on at least one charging parameter, that the current OBC (On-Board Charger) does not meet the preset charging conditions, charging of the vehicle is paused, and the system continues to determine whether the current OBC meets the preset charging conditions based on the at least one charging parameter; and

[0009] If, within a preset time period, it is determined based on at least one charging parameter that the current OBC meets the preset charging conditions, then charging of the vehicle continues; otherwise, charging of the vehicle stops.

[0010] According to one embodiment of this application, the charging parameters include at least one of the grid voltage, the duty cycle of the PWM (Pulse Width Modulation) signal, and the grid fluctuation frequency.

[0011] According to one embodiment of this application, the step of continuously determining whether the current OBC meets the preset charging conditions based on the at least one charging parameter includes:

[0012] Determine whether the grid voltage is less than a preset voltage, or whether the PWM signal duty cycle is greater than or equal to a first preset duty cycle, or whether the PWM signal duty cycle is less than or equal to a second preset duty cycle, or whether the grid fluctuation frequency is greater than a preset fluctuation frequency, wherein the second preset duty cycle is less than the first preset duty cycle;

[0013] If the grid voltage is less than the preset voltage, or the PWM signal duty cycle is greater than or equal to the first preset duty cycle, or the PWM signal duty cycle is less than or equal to the second preset duty cycle, or the grid fluctuation frequency is greater than the preset fluctuation frequency, then it is determined that the current OBC does not meet the preset charging conditions.

[0014] According to one embodiment of this application, continuing to charge the vehicle includes:

[0015] Control the current OBC to restart, and continue charging the vehicle after the restart is complete.

[0016] According to one embodiment of this application, after stopping charging the vehicle, the method further includes:

[0017] Generate a reason for stopping charging based on at least one of the charging parameters;

[0018] Send the reason for stopping charging to the preset mobile terminal.

[0019] According to one embodiment of this application, after stopping charging the vehicle, the method further includes:

[0020] An optical alarm signal and / or an acoustic alarm signal are generated based on at least one of the charging parameters;

[0021] Based on the optical alarm signal and / or the acoustic alarm signal, control the vehicle to perform acoustic alarm and / or optical alarm.

[0022] The vehicle charging method according to the embodiments of this application obtains at least one charging parameter of the current power grid. When it is determined that the current On-Board Charger (OBC) does not meet the preset charging conditions, charging of the vehicle is paused. The method continuously judges whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the current OBC meets the preset charging conditions within a preset time period, charging of the vehicle continues; otherwise, charging of the vehicle is stopped. This solves the problem of slow charging stoppage caused by abnormal charging parameters such as voltage and power grid fluctuation frequency, which prevents the vehicle from reaching the expected charging requirements. By modifying the software program to optimize charging stability, the method reduces the occurrence of stoppages during charging and allows for a specific time to wait for the OBC to recover and continue charging the vehicle when a stoppage occurs, thereby improving the user's charging experience.

[0023] A second aspect of this application provides a vehicle charging device, comprising:

[0024] The acquisition module is used to acquire at least one charging parameter of the current power grid;

[0025] The determination module is configured to pause charging the vehicle when it is determined, based on at least one charging parameter, that the current OBC does not meet the preset charging conditions, and to continuously determine whether the current OBC meets the preset charging conditions based on the at least one charging parameter; and

[0026] The control module is configured to continue charging the vehicle if, within a preset time period, it is determined based on at least one charging parameter that the current OBC meets the preset charging conditions; otherwise, it stops charging the vehicle.

[0027] According to one embodiment of this application, the charging parameters include at least one of the grid voltage, PWM signal duty cycle, and grid fluctuation frequency.

[0028] According to one embodiment of this application, the determination module is specifically used for:

[0029] Determine whether the grid voltage is less than a preset voltage, or whether the PWM signal duty cycle is greater than or equal to a first preset duty cycle, or whether the PWM signal duty cycle is less than or equal to a second preset duty cycle, or whether the grid fluctuation frequency is greater than a preset fluctuation frequency, wherein the second preset duty cycle is less than the first preset duty cycle;

[0030] If the grid voltage is less than the preset voltage, or the PWM signal duty cycle is greater than or equal to the first preset duty cycle, or the PWM signal duty cycle is less than or equal to the second preset duty cycle, or the grid fluctuation frequency is greater than the preset fluctuation frequency, then it is determined that the current OBC does not meet the preset charging conditions.

[0031] According to one embodiment of this application, the control module is specifically used for:

[0032] Control the current OBC to restart, and continue charging the vehicle after the restart is complete.

[0033] According to one embodiment of this application, after stopping charging the vehicle, the control module is further configured to:

[0034] Generate a reason for stopping charging based on at least one of the charging parameters;

[0035] Send the reason for stopping charging to the preset mobile terminal.

[0036] According to one embodiment of this application, after stopping charging the vehicle, the control module is further configured to:

[0037] An optical alarm signal and / or an acoustic alarm signal are generated based on at least one of the charging parameters;

[0038] Based on the optical alarm signal and / or the acoustic alarm signal, control the vehicle to perform acoustic alarm and / or optical alarm.

[0039] The vehicle charging device according to the embodiments of this application acquires at least one charging parameter of the current power grid. When it is determined that the current On-Board Charger (OBC) does not meet the preset charging conditions, charging the vehicle is paused. The device continuously determines whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the current OBC meets the preset charging conditions within a preset time period, charging the vehicle continues; otherwise, charging stops. This solves the problem of slow charging stoppage caused by abnormal charging parameters such as voltage and power grid fluctuation frequency, which prevents the vehicle from reaching the expected charging requirements. By modifying the software program to optimize charging stability, the device reduces the occurrence of stoppages during charging and allows for a specific time to wait for the OBC to recover and continue charging the vehicle when a stoppage occurs, thereby improving the user's charging experience.

[0040] A third aspect of this application provides an on-board charger, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the vehicle charging method as described in the above embodiments.

[0041] A fourth aspect of this application provides a computer-readable storage medium storing computer instructions for causing the computer to perform a vehicle charging method as described in the above embodiments.

[0042] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0043] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0044] Figure 1 This is a flowchart illustrating a vehicle charging method according to an embodiment of this application;

[0045] Figure 2 A flowchart illustrating the strategy modification for addressing the slow charging gun disconnection problem according to one embodiment of this application;

[0046] Figure 3 This is a schematic diagram of a slow charging control guide circuit according to an embodiment of this application;

[0047] Figure 4 This is a block diagram illustrating a charging device for a vehicle according to an embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the structure of an on-board charger according to an embodiment of this application. Detailed Implementation

[0049] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0050] The following description, with reference to the accompanying drawings, describes a vehicle charging method, apparatus, on-board charger, and storage medium according to embodiments of this application. Addressing the problem mentioned in the background art where slow charging stops due to abnormal charging parameters such as voltage and grid fluctuation frequency, thus preventing the vehicle from reaching the expected charging requirements, this application provides a vehicle charging method. In this method, at least one charging parameter of the current power grid is acquired. When it is determined that the current On-Board Charger (OBC) does not meet preset charging conditions, charging is paused. The method continuously determines whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the current OBC meets the preset charging conditions within a preset time period, charging continues; otherwise, charging stops. This solves the problem of slow charging stopping due to abnormal charging parameters such as voltage and grid fluctuation frequency, preventing the vehicle from reaching the expected charging requirements. By modifying the software program to optimize charging stability, the occurrence of charging stoppages is reduced. Furthermore, when a charging stoppage occurs, a specific time is reserved to allow the OBC to resume operation and continue charging, thereby improving the user's charging experience.

[0051] Specifically, Figure 1 This is a schematic flowchart illustrating a vehicle charging method provided in an embodiment of this application.

[0052] like Figure 1 As shown, the charging method for this vehicle includes the following steps:

[0053] In step S101, at least one charging parameter of the current power grid is obtained.

[0054] Specifically, during vehicle charging, abnormal charging parameters in the AC power grid, such as abnormal grid voltage, abnormal PWM signal duty cycle, abnormal grid fluctuation frequency, abnormal current, abnormal CP frequency, or other faults, often cause the OBC (On-Board Charger) to malfunction. This triggers the OBC shutdown protection or the OBC detects that charging is not possible. The OBC then reports the detected fault to the CAN (Controller Area Network) bus. The VCU (Vehicle Control Unit) then guides the vehicle to power off based on the fault reported by the OBC, resulting in a slow charging interruption. The user then needs to re-plug the charging gun to begin the charging process, thus reducing the user experience. If the vehicle is charging at night, the user may not even be aware of the charging interruption, preventing the vehicle from reaching full charge. Therefore, this embodiment of the application needs to determine whether the current OBC meets the vehicle charging conditions based on the acquired charging parameters, and then control the vehicle to charge or power off based on the determination result.

[0055] In step S102, when it is determined that the current OBC does not meet the preset charging conditions based on at least one charging parameter, charging the vehicle is paused, and the determination of whether the current OBC meets the preset charging conditions is continuously based on at least one charging parameter.

[0056] According to one embodiment of this application, continuously determining whether the current OBC meets the preset charging conditions based on at least one charging parameter includes: determining whether the grid voltage is less than a preset voltage, or whether the PWM signal duty cycle is greater than or equal to a first preset duty cycle, or whether the PWM signal duty cycle is less than or equal to a second preset duty cycle, or whether the grid fluctuation frequency is greater than a preset fluctuation frequency, wherein the second preset duty cycle is less than the first preset duty cycle; if the grid voltage is less than the preset voltage, or the PWM signal duty cycle is greater than or equal to the first preset duty cycle, or the PWM signal duty cycle is less than or equal to the second preset duty cycle, or the grid fluctuation frequency is greater than the preset fluctuation frequency, then it is determined that the OBC does not meet the preset charging conditions.

[0057] Among them, the preset voltage, the first preset duty cycle, the second preset duty cycle, the preset fluctuation frequency, and the preset charging conditions can all be set by those skilled in the art based on the actual charging situation during the vehicle charging process, or they can be obtained through computer simulation, and no specific limitations are made here.

[0058] Specifically, such as Figure 2 and Figure 3 As shown in the embodiment of this application, after obtaining at least one charging parameter of the current power grid, it is necessary to determine the parameter to determine whether the current OBC meets the preset charging conditions.

[0059] Specifically, during the vehicle charging process, S2 and S3 are in a closed state. First, the VCU issues a charging command and detects the current grid voltage, PWM signal duty cycle, and grid fluctuation frequency through the OBC. Second, it obtains the preset input voltage of the OBC and determines whether the grid voltage is less than the preset voltage, or whether the PWM signal duty cycle is greater than or equal to the first preset duty cycle (e.g., 97%), or whether the PWM signal duty cycle is less than or equal to the second preset duty cycle (e.g., 3%), or whether the grid fluctuation frequency is greater than the preset fluctuation frequency (e.g., 6PWM). If the grid voltage is less than the preset voltage, or the PWM signal duty cycle is greater than or equal to 97%, or the PWM signal duty cycle is less than or equal to 3%, or the grid fluctuation frequency is not 6PWM, then it is determined that the OBC does not meet the preset charging conditions.

[0060] Furthermore, such as Figure 2As shown in the embodiment of this application, when it is determined that the OBC does not meet the preset charging conditions, the OBC enters a fault state, triggers the OBC protection and reports the fault. At this time, the S2 switch and the power supply circuit are disconnected, and charging of the vehicle is suspended. During the suspension of charging, at least one charging parameter of the current power grid is continuously acquired, such as the power grid voltage, the duty cycle of the PWM signal and the power grid fluctuation frequency. At the same time, it is continuously determined whether the current OBC meets the preset charging conditions based on at least one charging parameter.

[0061] In step S103, if the current OBC meets the preset charging conditions based on at least one charging parameter within a preset time period, then the vehicle will continue to be charged; otherwise, the vehicle will stop being charged.

[0062] According to one embodiment of this application, continuing to charge the vehicle includes: controlling the current OBC to restart, and continuing to charge the vehicle after the restart is complete.

[0063] The preset duration can be set by those skilled in the art based on the actual charging situation during the vehicle charging process, or it can be obtained through computer simulation; no specific limitation is made here.

[0064] Specifically, since abnormal grid voltage, abnormal PWM signal duty cycle, abnormal grid fluctuation frequency, abnormal current, abnormal CP frequency, or other faults are all related to grid fluctuations, and these faults are generally probabilistic and occasional, the OBC can re-enter the working state after the grid returns to normal. Therefore, in this embodiment of the application, during the charging pause process, a preset waiting time needs to be reserved for the vehicle, and the current OBC needs to be determined based on at least one charging parameter to see if it meets the preset charging conditions. If it meets the preset charging conditions, the OBC will restart after the grid is restored and continue charging the vehicle; otherwise, if the OBC has a fault or the grid fluctuation frequency is not 6PWM, the vehicle will stop charging.

[0065] For example, in this embodiment of the application, during the charging pause process, a 60-second waiting time can be reserved for the vehicle. If, within 60 seconds, the current grid voltage fluctuation is greater than or equal to the preset voltage, the PWM signal duty cycle is greater than 3% and less than 97%, and the grid fluctuation frequency is 6PWM, then it is determined that the current OBC meets the preset charging conditions. After the grid is restored, the OBC is controlled to restart and enter the working state, and the vehicle continues to be charged after the OBC restarts, without user operation. If the OBC does not restart and enter the working state within 60 seconds, it indicates that the OBC has a fault or the grid fluctuation frequency is not 6PWM. At this time, the vehicle stops charging, and the VCU guides the vehicle to power off.

[0066] According to one embodiment of this application, after stopping charging the vehicle, the method further includes: generating a reason for stopping charging based on at least one charging parameter; and sending the reason for stopping charging to a preset mobile terminal.

[0067] The preset mobile terminal can be any mobile device selected by the user according to their usage needs, and no specific restrictions are made here.

[0068] Specifically, in this embodiment of the application, when the OBC detects abnormal states in the mains voltage, PWM signal duty cycle, mains fluctuation frequency, current, and CP frequency, a reason for stopping charging is generated based on at least one charging parameter. For example, when the OBC detects an abnormal mains voltage, it generates mains voltage abnormality information; when the OBC detects an abnormal PWM signal duty cycle, it generates PWM signal duty cycle abnormality information; when the OBC detects an abnormal mains fluctuation frequency, it generates mains fluctuation frequency abnormality information, etc., thereby generating a corresponding reason for stopping charging based on the obtained abnormal information, and sending the reason for stopping charging to a preset mobile terminal. For example, the preset mobile terminal can be a user's mobile phone, computer, or other mobile terminal capable of receiving information.

[0069] For example, if the OBC detects an abnormal mains voltage, it generates a mains voltage abnormality information and simultaneously sends a reminder message to the user's mobile phone: "Please note that an abnormal mains voltage has been detected during vehicle charging. Please have it checked promptly." This reminds the user to check the cause of the abnormality. Similarly, if the OBC detects an abnormal PWM signal duty cycle, it generates a PWM signal duty cycle abnormality information and simultaneously sends a reminder message to the user's computer: "Please note that an abnormal PWM signal duty cycle has been detected during vehicle charging. Please have it checked promptly." This reminds the user to check the cause of the abnormality, thus preventing any impact on the vehicle's charging function. It should be noted that the reasons for stopping charging when other charging parameters are abnormal can also be notified in the same way, and will not be elaborated upon here.

[0070] According to one embodiment of this application, after stopping charging the vehicle, the method further includes: generating an optical alarm signal and / or an acoustic alarm signal based on at least one charging parameter; and controlling the vehicle to perform an acoustic alarm and / or an optical alarm based on the optical alarm signal and / or the acoustic alarm signal.

[0071] Specifically, in this embodiment, when the OBC detects abnormalities in the mains voltage, PWM signal duty cycle, mains fluctuation frequency, current, and CP frequency, it generates an optical alarm signal and / or an acoustic alarm signal based on at least one charging parameter. For example, when the OBC detects an abnormal mains voltage, it generates an optical alarm signal; when the OBC detects an abnormal PWM signal duty cycle, it generates an acoustic alarm signal; when the OBC detects an abnormal mains fluctuation frequency, it generates both an optical alarm signal and / or an acoustic alarm signal. Furthermore, the vehicle is controlled to perform optical and / or acoustic alarms through the optical and / or acoustic alarm signals to promptly remind the user to check when the vehicle starts charging, thereby saving the user's time.

[0072] In this application embodiment, the optical alarm signal can be an LED (Light-Emitting Diode) display or other optical devices with display functions; the acoustic alarm signal can be a buzzer, a vehicle horn, or other acoustic devices with acoustic functions.

[0073] For example, if the OBC detects an abnormality in the mains voltage, it can use an LED display to alternately display light to alert the user to the abnormality. If the OBC detects an abnormality in the PWM signal duty cycle, it can use a buzzer to provide an acoustic alert, such as a "beep beep beep" sound. If the OBC detects an abnormality in the mains frequency fluctuation, it can use both an LED display and a buzzer to provide both optical and acoustic alerts, such as the LED display displaying light while the buzzer emits a "beep beep beep" sound, or the LED display and buzzer alternately.

[0074] It should be noted that the alarm signals mentioned above are merely illustrative examples, and users can make corresponding settings according to their actual needs. No specific limitations are made here.

[0075] Therefore, this application embodiment solves the problem of charging gun tripping due to power grid fluctuations by only changing the software program of the components, without adding special parts and related systems and other equipment, and also does not add failure points of special parts, thereby improving the slow charging experience of users.

[0076] The vehicle charging method according to the embodiments of this application obtains at least one charging parameter of the current power grid. When it is determined that the current On-Board Charger (OBC) does not meet the preset charging conditions, charging of the vehicle is paused. The method continuously judges whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the current OBC meets the preset charging conditions within a preset time period, charging of the vehicle continues; otherwise, charging of the vehicle is stopped. This solves the problem of slow charging stoppage caused by abnormal charging parameters such as voltage and power grid fluctuation frequency, which prevents the vehicle from reaching the expected charging requirements. By modifying the software program to optimize charging stability, the method reduces the occurrence of stoppages during charging and allows for a specific time to wait for the OBC to recover and continue charging the vehicle when a stoppage occurs, thereby improving the user's charging experience.

[0077] Next, a vehicle charging device according to an embodiment of this application is described with reference to the accompanying drawings.

[0078] Figure 4 This is a block diagram of a vehicle charging device according to an embodiment of this application.

[0079] like Figure 4 As shown, the charging device 10 of the vehicle includes: an acquisition module 100, a determination module 200, and a control module 300.

[0080] The acquisition module 100 is used to acquire at least one charging parameter of the current power grid.

[0081] The determination module 200 is configured to suspend charging the vehicle when it is determined, based on at least one charging parameter, that the current OBC does not meet the preset charging conditions, and to continuously determine whether the current OBC meets the preset charging conditions based on at least one charging parameter; and

[0082] The control module 300 is used to continue charging the vehicle if it determines that the current OBC meets the preset charging conditions based on at least one charging parameter within a preset time period; otherwise, it stops charging the vehicle.

[0083] According to one embodiment of this application, the charging parameters include at least one of the grid voltage, PWM signal duty cycle, and grid fluctuation frequency.

[0084] According to one embodiment of this application, the determination module 200 is specifically used for:

[0085] Determine whether the grid voltage is less than a preset voltage, or whether the PWM signal duty cycle is greater than or equal to a first preset duty cycle, or whether the PWM signal duty cycle is less than or equal to a second preset duty cycle, or whether the grid fluctuation frequency is greater than a preset fluctuation frequency, wherein the second preset duty cycle is less than the first preset duty cycle;

[0086] If the grid voltage is less than the preset voltage, or the PWM signal duty cycle is greater than or equal to the first preset duty cycle, or the PWM signal duty cycle is less than or equal to the second preset duty cycle, or the grid fluctuation frequency is greater than the preset fluctuation frequency, then it is determined that the current OBC does not meet the preset charging conditions.

[0087] According to one embodiment of this application, the control module 300 is specifically used for:

[0088] Control the current OBC to restart and continue charging the vehicle after the restart is complete.

[0089] According to one embodiment of this application, after stopping charging the vehicle, the control module 300 is further configured to:

[0090] Generate a reason for stopping charging based on at least one charging parameter;

[0091] Send the reason for the charging stop to the preset mobile terminal.

[0092] According to one embodiment of this application, after stopping charging the vehicle, the control module 300 is further configured to:

[0093] Generate optical alarm signals and / or acoustic alarm signals based on at least one charging parameter;

[0094] Based on optical alarm signals and / or acoustic alarm signals, control the vehicle to perform acoustic alarms and / or optical alarms.

[0095] According to the vehicle charging device of this application embodiment, at least one charging parameter of the current power grid is acquired. When it is determined that the current On-Board Charger (OBC) does not meet the preset charging conditions, charging of the vehicle is suspended, and the device continuously determines whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the current OBC meets the preset charging conditions within a preset time period, charging of the vehicle continues; otherwise, charging of the vehicle is stopped. This solves the problem of slow charging stoppage caused by abnormal charging parameters such as voltage and power grid fluctuation frequency, which prevents the vehicle from reaching the expected charging requirements. By modifying the software program to optimize charging stability, the device reduces the occurrence of stoppages during charging and allows for a specific time to wait for the OBC to recover and continue charging the vehicle when a stoppage occurs, thereby improving the user's charging experience.

[0096] Figure 5 This is a schematic diagram of the structure of an on-board charger provided in an embodiment of this application. The on-board charger may include:

[0097] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0098] When the processor 502 executes the program, it implements the vehicle charging method provided in the above embodiments.

[0099] Furthermore, the on-board charger also includes:

[0100] Communication interface 503 is used for communication between memory 501 and processor 502.

[0101] The memory 501 is used to store computer programs that can run on the processor 502.

[0102] The memory 501 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0103] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0104] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0105] Processor 502 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0106] This embodiment also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the vehicle charging method described above.

[0107] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0108] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0109] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0110] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which programs can be printed, because programs can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0111] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0112] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium. When executed, the program includes one or a combination of the steps of the method embodiments.

[0113] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0114] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for charging a vehicle, characterized in that, Includes the following steps: Obtain at least one charging parameter of the current power grid; When it is determined that the current OBC does not meet the preset charging conditions based on at least one charging parameter, charging the vehicle is paused, and the determination of whether the current OBC meets the preset charging conditions is continuously based on at least one charging parameter. as well as If, within a preset time period, it is determined based on at least one charging parameter that the current OBC meets the preset charging conditions, then charging of the vehicle continues; otherwise, charging of the vehicle stops. Specifically, when it is determined that the current OBC does not meet the preset charging conditions, the current OBC enters a fault state, triggers the current OBC protection and reports the fault, suspends charging for the vehicle, and reserves a preset waiting time for the vehicle during the charging suspension process. It continues to acquire at least one charging parameter of the current power grid and continuously judges whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the preset charging conditions are met, the current OBC will restart charging the vehicle after the power grid is restored; otherwise, the vehicle stops charging.

2. The method according to claim 1, characterized in that, Charging parameters include at least one of the following: grid voltage, pulse width modulation (PWM) signal duty cycle, and grid fluctuation frequency.

3. The method according to claim 2, characterized in that, The step of continuously determining whether the current OBC meets the preset charging conditions based on the at least one charging parameter includes: Determine whether the grid voltage is less than a preset voltage, or whether the PWM signal duty cycle is greater than or equal to a first preset duty cycle, or whether the PWM signal duty cycle is less than or equal to a second preset duty cycle, or whether the grid fluctuation frequency is greater than a preset fluctuation frequency, wherein the second preset duty cycle is less than the first preset duty cycle; If the grid voltage is less than the preset voltage, or the PWM signal duty cycle is greater than or equal to the first preset duty cycle, or the PWM signal duty cycle is less than or equal to the second preset duty cycle, or the grid fluctuation frequency is greater than the preset fluctuation frequency, then it is determined that the current OBC does not meet the preset charging conditions.

4. The method according to claim 1, characterized in that, The continued charging of the vehicle includes: Control the current OBC to restart, and continue charging the vehicle after the restart is complete.

5. The method according to any one of claims 1-4, characterized in that, After stopping charging the vehicle, the process also includes: Generate a reason for stopping charging based on at least one of the charging parameters; Send the reason for stopping charging to the preset mobile terminal.

6. The method according to claim 5, characterized in that, After stopping charging the vehicle, the process also includes: An optical alarm signal and / or an acoustic alarm signal are generated based on at least one of the charging parameters; Based on the optical alarm signal and / or the acoustic alarm signal, control the vehicle to perform acoustic alarm and / or optical alarm.

7. A vehicle charging device, characterized in that, include: The acquisition module is used to acquire at least one charging parameter of the current power grid; The determination module is used to pause charging the vehicle when it is determined that the current OBC does not meet the preset charging conditions based on the at least one charging parameter, and to continuously determine whether the current OBC meets the preset charging conditions based on the at least one charging parameter. as well as The control module is configured to continue charging the vehicle if, within a preset time period, it is determined based on at least one charging parameter that the current OBC meets the preset charging conditions; otherwise, it stops charging the vehicle. Specifically, when it is determined that the current OBC does not meet the preset charging conditions, the current OBC enters a fault state, triggers the current OBC protection and reports the fault, suspends charging for the vehicle, and reserves a preset waiting time for the vehicle during the charging suspension process. It continues to acquire at least one charging parameter of the current power grid and continuously judges whether the current OBC meets the preset charging conditions based on at least one charging parameter. If the preset charging conditions are met, the current OBC will restart charging the vehicle after the power grid is restored; otherwise, the vehicle stops charging.

8. The apparatus according to claim 7, characterized in that, Charging parameters include at least one of the following: grid voltage, PWM signal duty cycle, and grid fluctuation frequency.

9. An on-board charger, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the charging method for a vehicle as described in any one of claims 1-6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the charging method for the vehicle as described in any one of claims 1-6.

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