CN117507885A - Vehicle charging method and device, vehicle-mounted charger and storage medium - Google Patents

Vehicle charging method and device, vehicle-mounted charger and storage medium Download PDF

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Publication number
CN117507885A
CN117507885A CN202311635153.9A CN202311635153A CN117507885A CN 117507885 A CN117507885 A CN 117507885A CN 202311635153 A CN202311635153 A CN 202311635153A CN 117507885 A CN117507885 A CN 117507885A
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China
Prior art keywords
charging
vehicle
preset
obc
current
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CN202311635153.9A
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Chinese (zh)
Inventor
赵秀丽
卢秀娟
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Beiqi Foton Motor Co Ltd
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Beiqi Foton Motor Co Ltd
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Priority to CN202311635153.9A priority Critical patent/CN117507885A/en
Publication of CN117507885A publication Critical patent/CN117507885A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application relates to a charging method and device of a vehicle, a vehicle-mounted charger and a storage medium, wherein the charging method comprises the following steps: and obtaining at least one charging parameter of the current power grid, suspending charging for the vehicle when the current OBC is judged not to meet the preset charging condition, continuously judging whether the current OBC meets the preset charging condition or not based on the at least one charging parameter, if the current OBC meets the preset charging condition within the preset time, continuing to charge the vehicle, otherwise, stopping charging for the vehicle. Therefore, the problem that the charging requirement cannot be met due to the fact that a vehicle stops being charged due to slow charging and gun jumping caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like is solved, the gun jumping condition in the charging process is reduced by changing a software program to optimize the stability of charging, the OBC can be reserved for a specific time to wait for the OBC to restore the working state when the gun jumping condition occurs, and the vehicle is continuously charged, so that the charging experience of a user is improved.

Description

Vehicle charging method and device, vehicle-mounted charger and storage medium
Technical Field
The present disclosure relates to the field of vehicle charging technologies, and in particular, to a vehicle charging method and device, a vehicle-mounted charger, and a storage medium.
Background
With the great development of the national new energy automobile industry, under the great trend of a 'double carbon' target, the market share of the new energy automobile is gradually increased, so the charging technology with the characteristics of improving the charging service experience and the charging service quality is the main trend of future development of a new generation of charging technology.
In the related art, a charging gun CC (Connection Confirm, connection confirmation) signal is generally and directly connected to GND (Ground), and a charging gun CP (Clock Pulse) signal is generally and directly connected to a charger during charging, so as to fulfill the charging purpose of the vehicle.
However, the above charging method is easy to generate the problem of slow charging and gun jumping, namely, the slow charging and gun jumping can be caused by the reasons of abnormal power grid voltage, failure of charging equipment, vehicle failure, loosening of a charging wire and the like in the charging process of the vehicle, so that when the vehicle is charged at night, the user can stop charging due to the fact that the slow charging and gun jumping situation is generated, the user cannot insert the gun again in time, the expected charging requirement cannot be met, the satisfaction degree of the user is reduced, and the problem is needed to be solved.
Disclosure of Invention
The application provides a vehicle charging method and device, a vehicle-mounted charger and a storage medium, and aims to solve the problems that a vehicle stops charging and cannot meet expected charging requirements due to slow charging jump gun caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like.
An embodiment of a first aspect of the present application provides a charging method for a vehicle, including the steps of:
acquiring at least one charging parameter of a current power grid;
when the current OBC (On-Board Charger) is judged to not meet the preset charging condition according to the at least one charging parameter, stopping charging the vehicle, and continuously judging whether the current OBC meets the preset charging condition or not based On the at least one charging parameter; and
and if the current OBC meets the preset charging condition based on the at least one charging parameter within the preset time, continuing to charge the vehicle, otherwise, stopping charging the vehicle.
According to one embodiment of the present application, the charging parameters include at least one of grid voltage, PWM (Pulse width modulation, pulse width modulated) signal duty cycle, and grid ripple frequency.
According to one embodiment of the present application, the continuously determining whether the current OBC meets the preset charging condition based on the at least one charging parameter includes:
judging whether the power grid voltage is smaller than a preset voltage, or whether the duty ratio of the PWM signal is larger than or equal to a first preset duty ratio, or whether the duty ratio of the PWM signal is smaller than or equal to a second preset duty ratio, or whether the power grid fluctuation frequency is larger than a preset fluctuation frequency, wherein the second preset duty ratio is smaller than the first preset duty ratio;
and if the grid voltage is smaller than the preset voltage, or the duty ratio of the PWM signal is larger than or equal to the first preset duty ratio, or the duty ratio of the PWM signal is smaller than or equal to the second preset duty ratio, or the fluctuation frequency of the grid is larger than the preset fluctuation frequency, judging that the current OBC does not meet the preset charging condition.
According to one embodiment of the application, the continuing to charge the vehicle includes:
and controlling the current OBC to restart, and continuously charging the vehicle after the restart is completed.
According to one embodiment of the present application, after stopping charging the vehicle, further comprising:
generating a stop charge cause based on the at least one charging parameter;
and sending the charging stopping reason to a preset mobile terminal.
According to one embodiment of the present application, after stopping charging the vehicle, further comprising:
generating an optical alarm signal and/or an acoustic alarm signal based on the at least one charging parameter;
and controlling the vehicle to carry out acoustic alarm and/or optical alarm based on the optical alarm signal and/or the acoustic alarm signal.
According to the vehicle charging method, at least one charging parameter of the current power grid is obtained, when the current OBC is judged not to meet the preset charging condition, the charging of the vehicle is stopped, whether the current OBC meets the preset charging condition is continuously judged based on the at least one charging parameter, if the current OBC meets the preset charging condition within the preset duration, the charging of the vehicle is continued, and otherwise, the charging of the vehicle is stopped. Therefore, the problem that the charging requirement cannot be met due to the fact that a vehicle stops being charged due to slow charging and gun jumping caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like is solved, the gun jumping condition in the charging process is reduced by changing a software program to optimize the stability of charging, the OBC can be reserved for a specific time to wait for the OBC to restore the working state when the gun jumping condition occurs, and the vehicle is continuously charged, so that the charging experience of a user is improved.
An embodiment of a second aspect of the present application provides a charging device for a vehicle, including:
the acquisition module is used for acquiring at least one charging parameter of the current power grid;
the judging module is used for suspending charging of the vehicle when judging that the current OBC does not meet the preset charging condition according to the at least one charging parameter, and continuously judging whether the current OBC meets the preset charging condition or not based on the at least one charging parameter; and
and the control module is used for continuously charging the vehicle if the current OBC meets the preset charging condition based on the at least one charging parameter within the preset time period, and stopping charging the vehicle if the current OBC meets the preset charging condition.
According to one embodiment of the present application, the charging parameters include at least one of grid voltage, PWM signal duty cycle, and grid ripple frequency.
According to one embodiment of the present application, the determining module is specifically configured to:
judging whether the power grid voltage is smaller than a preset voltage, or whether the duty ratio of the PWM signal is larger than or equal to a first preset duty ratio, or whether the duty ratio of the PWM signal is smaller than or equal to a second preset duty ratio, or whether the power grid fluctuation frequency is larger than a preset fluctuation frequency, wherein the second preset duty ratio is smaller than the first preset duty ratio;
and if the grid voltage is smaller than the preset voltage, or the duty ratio of the PWM signal is larger than or equal to the first preset duty ratio, or the duty ratio of the PWM signal is smaller than or equal to the second preset duty ratio, or the fluctuation frequency of the grid is larger than the preset fluctuation frequency, judging that the current OBC does not meet the preset charging condition.
According to one embodiment of the present application, the control module is specifically configured to:
and controlling the current OBC to restart, and continuously charging the vehicle after the restart is completed.
According to one embodiment of the application, after stopping charging the vehicle, the control module is further configured to:
generating a stop charge cause based on the at least one charging parameter;
and sending the charging stopping reason to a preset mobile terminal.
According to one embodiment of the application, after stopping charging the vehicle, the control module is further configured to:
generating an optical alarm signal and/or an acoustic alarm signal based on the at least one charging parameter;
and controlling the vehicle to carry out acoustic alarm and/or optical alarm based on the optical alarm signal and/or the acoustic alarm signal.
According to the charging device of the vehicle, at least one charging parameter of the current power grid is obtained, when the current OBC is judged not to meet the preset charging condition, the charging of the vehicle is stopped, whether the current OBC meets the preset charging condition is continuously judged based on the at least one charging parameter, if the current OBC meets the preset charging condition within the preset duration, the charging of the vehicle is continued, and otherwise, the charging of the vehicle is stopped. Therefore, the problem that the charging requirement cannot be met due to the fact that a vehicle stops being charged due to slow charging and gun jumping caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like is solved, the gun jumping condition in the charging process is reduced by changing a software program to optimize the stability of charging, the OBC can be reserved for a specific time to wait for the OBC to restore the working state when the gun jumping condition occurs, and the vehicle is continuously charged, so that the charging experience of a user is improved.
An embodiment of a third aspect of the present application provides a vehicle-mounted charger, including: the vehicle charging system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the vehicle charging method according to the embodiment.
An embodiment of a fourth aspect of the present application provides a computer-readable storage medium storing computer instructions for causing the computer to execute the method for charging a vehicle according to the above embodiment.
Additional aspects and advantages of the 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 the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a flowchart of a method for charging a vehicle according to an embodiment of the present application;
FIG. 2 is a flow chart of a slow charge skip gun problem modification strategy according to one embodiment of the present application;
FIG. 3 is a schematic diagram of a slow charge control steering circuit according to one embodiment of the present application;
fig. 4 is a block example diagram of a charging device of a vehicle according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a vehicle-mounted charger according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following describes a charging method, a device, a vehicle-mounted charger and a storage medium of a vehicle according to an embodiment of the present application with reference to the accompanying drawings. Aiming at the problem that the charging of a vehicle cannot meet the expected charging requirement due to slow charging jump gun caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like in the background art, the application provides a charging method of the vehicle. Therefore, the problem that the charging requirement cannot be met due to the fact that a vehicle stops being charged due to slow charging and gun jumping caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like is solved, the gun jumping condition in the charging process is reduced by changing a software program to optimize the stability of charging, the OBC can be reserved for a specific time to wait for the OBC to restore the working state when the gun jumping condition occurs, and the vehicle is continuously charged, so that the charging experience of a user is improved.
Specifically, fig. 1 is a schematic flow chart of a vehicle charging method according to an embodiment of the present application.
As shown in fig. 1, the charging method of the vehicle includes the steps of:
in step S101, at least one charging parameter of the current grid is acquired.
Specifically, in the charging process of the vehicle, the fault of the OBC is often caused by the abnormal charging parameters in the ac power grid, such as abnormal power grid voltage, abnormal duty ratio of PWM signals, abnormal power grid fluctuation frequency, abnormal current, abnormal CP frequency or other fault reasons, so that the OBC is triggered to perform shutdown protection or the OBC recognizes the uncharged condition, so that the OBC reports the detected fault to a CAN (Controller Area Network ) bus, and the VCU (Vehicle Control Unit, a whole vehicle controller) guides the whole vehicle to power down according to the fault reported by the OBC, thereby causing slow charging interruption, requiring a user to reinsert a gun for performing a charging process, and reducing the experience of the user; if the vehicle is charged at night, the user does not know the condition of charge interruption, so that the vehicle cannot reach the full charge expectation. Therefore, the embodiment of the application needs to determine whether the current OBC meets the vehicle charging condition according to the acquired charging parameters, and further control the vehicle to be charged or powered down according to the determination result.
In step S102, when it is determined that the current OBC does not satisfy the preset charging condition according to the at least one charging parameter, charging of the vehicle is suspended, and whether the current OBC satisfies the preset charging condition is continuously determined based on the at least one charging parameter.
According to one embodiment of the present application, continuously determining whether the current OBC meets a preset charging condition based on at least one charging parameter includes: judging whether the power grid voltage is smaller than a preset voltage or whether the duty ratio of the PWM signal is larger than or equal to a first preset duty ratio or whether the duty ratio of the PWM signal is smaller than or equal to a second preset duty ratio or whether the fluctuation frequency of the power grid is larger than a preset fluctuation frequency, wherein the second preset duty ratio is smaller than the first preset duty ratio; if the power grid voltage is smaller than the preset voltage, or the duty ratio of the PWM signal is larger than or equal to the first preset duty ratio, or the duty ratio of the PWM signal is smaller than or equal to the second preset duty ratio, or the fluctuation frequency of the power grid is larger than the preset fluctuation frequency, judging that the OBC does not meet the preset charging condition.
The preset voltage, the first preset duty cycle, the second preset duty cycle, the preset fluctuation frequency and the preset charging condition can be set by a person skilled in the art according to the actual charging condition in the vehicle charging process, and can also be obtained through computer simulation, and the method is not particularly limited herein.
Specifically, as shown in fig. 2 and fig. 3, after at least one charging parameter of the current power grid is obtained, the embodiment of the present application needs to determine the parameter respectively to obtain whether the current OBC meets the preset charging condition.
Specifically, when the vehicle is in a charging process, S2 and S3 are in a closed state, firstly, a VCU issues a charging instruction, and the current power grid voltage, PWM signal duty ratio and power grid fluctuation frequency are detected through an OBC; secondly, acquiring an input preset voltage of the OBC, judging whether the power grid voltage is smaller than the preset voltage, or whether the duty ratio of the PWM signal is larger than or equal to a first preset duty ratio, for example 97%, or whether the duty ratio of the PWM signal is smaller than or equal to a second preset duty ratio, for example 3%, or whether the fluctuation frequency of the power grid is larger than a preset fluctuation frequency, for example 6PWM, and judging that the OBC does not meet the preset charging condition if the power grid voltage is smaller than the preset voltage, or the duty ratio of the PWM signal is larger than or equal to 97%, or the duty ratio of the PWM signal is smaller than or equal to 3%, or the fluctuation frequency of the power grid is not 6 PWM.
Further, as shown in fig. 2, when it is determined that the OBC does not meet the preset charging condition, the OBC enters a fault state, and triggers OBC protection and reports a fault, at this time, the S2 switch and the power supply loop are disconnected, charging of the vehicle is suspended, at least one charging parameter of the current power grid, such as the power grid voltage, the duty ratio of the PWM signal, the fluctuation frequency of the power grid, and the like, is continuously acquired in the suspension charging process, and meanwhile, whether the current OBC meets the preset charging condition is continuously determined based on the at least one charging parameter.
In step S103, if it is determined that the current OBC meets the preset charging condition based on at least one charging parameter within the preset period, charging the vehicle is continued, otherwise, charging the vehicle is stopped.
According to one embodiment of the present application, continuing to charge the vehicle includes: and controlling the current OBC to restart, and continuously charging the vehicle after the restart is completed.
The preset duration may be set by a person skilled in the art according to an actual charging condition in a vehicle charging process, or may be obtained through computer simulation, which is not limited herein.
Specifically, because the power grid voltage abnormality, the PWM signal duty cycle abnormality, the power grid fluctuation frequency abnormality, the current abnormality, the CP frequency abnormality or other fault causes are all related to the power grid fluctuation, and the fault is generally a probabilistic accidental fault, after the power grid is recovered to be normal, the OBC can reenter the working state. Therefore, in the process of suspending charging, a waiting time with preset duration is required to be reserved for the vehicle, whether the current OBC meets preset charging conditions is judged based on at least one charging parameter, if the current OBC meets the preset charging conditions, the OBC is restarted after the power grid is waited to be restored, the vehicle is continuously charged, and if not, the OBC has a fault or the power grid fluctuation frequency is not 6PWM, and the vehicle stops charging at the moment.
For example, in the embodiment of the present application, a waiting time of 60s may be reserved for the vehicle in the process of suspending charging, if the current power 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 power grid fluctuation frequency is 6PWM in 60s, when it is determined that the current OBC meets the preset charging condition, the current OBC is controlled to restart into the working state after waiting for the power grid to resume, and the vehicle is continuously charged after the OBC restarting is completed, without requiring a user operation; if the OBC is not restarted to enter the working state within 60s, the OBC is in fault or the fluctuation frequency of the power grid is not 6PWM, and the vehicle stops charging at the moment, and the VCU guides the vehicle to power down.
According to one embodiment of the present application, after stopping charging the vehicle, further comprising: generating a stop charge cause based on at least one charging parameter; and sending the charging stopping reason to a preset mobile terminal.
The preset mobile terminal may be a corresponding mobile device selected by the user according to a use requirement, which is not specifically limited herein.
Specifically, when the OBC detects that the power grid voltage, the duty ratio of the PWM signal, the fluctuation frequency of the power grid, the current, the CP frequency and the like are in an abnormal state, the embodiment of the present application generates a charging stopping reason based on at least one charging parameter, for example, when the OBC detects that the power grid voltage is abnormal, the OBC generates power grid voltage abnormality information; when the OBC detects that the duty ratio of the PWM signal is abnormal, generating PWM signal duty ratio abnormal information; when the OBC detects that the fluctuation frequency of the power grid is abnormal, generating power grid fluctuation frequency abnormal information and the like, generating corresponding charging stopping reasons according to the obtained abnormal information, and sending the charging stopping reasons to a preset mobile terminal, wherein the preset mobile terminal can be a mobile phone end, a computer end or other mobile terminals capable of receiving information of a user.
For example, if the OBC detects the abnormal power grid voltage, generating power grid voltage abnormality information, and simultaneously sending a prompt message of "please notice that the vehicle detects the abnormal power grid voltage during charging, please overhaul in time" to prompt the user to check the cause of the abnormality in time; if the OBC detects that the duty ratio of the PWM signal is abnormal, generating PWM signal duty ratio abnormal information, and simultaneously sending reminding information of ' please notice ' to a computer end of a user, wherein the vehicle detects that the duty ratio of the PWM signal is abnormal in the charging process, and the vehicle is required to be overhauled in time ', so as to remind the user to check the reason of the abnormality in time, and further avoid affecting the charging function of the vehicle. It should be noted that, the reason for stopping charging generated when the remaining charging parameters are abnormal may be reminded in the above manner, and detailed description is omitted here.
According to one embodiment of the present application, after stopping charging the vehicle, further comprising: generating an optical alarm signal and/or an acoustic alarm signal based on the at least one charging parameter; the vehicle is controlled to perform acoustic warning and/or optical warning based on the optical warning signal and/or the acoustic warning signal.
Specifically, when the OBC detects that the grid voltage, the duty ratio of the PWM signal, the fluctuation frequency of the grid, the current, the CP frequency and the like are in an abnormal state, the embodiment of the application generates an optical alarm signal and/or an acoustic alarm signal based on at least one charging parameter, for example, when the OBC detects that the grid voltage is abnormal, the OBC generates the optical alarm signal; when the OBC detects that the duty ratio of the PWM signal is abnormal, an acoustic alarm signal is generated; when the OBC detects that the fluctuation frequency of the power grid is abnormal, an optical alarm signal and/or an acoustic alarm signal are generated at the same time, and the vehicle is controlled to carry out optical alarm and/or acoustic alarm through the optical alarm signal and/or the acoustic alarm signal, so that a user is reminded to check in time when the vehicle starts to charge, and the time cost of the user is saved.
The optical alarm signal in the embodiment of the present application may be an LED (Light-Emitting Diode) display or other optical devices with display functions; the acoustic alarm signal may be a buzzer, a vehicle horn or other acoustic device with acoustic function.
For example, if the OBC detects an abnormal grid voltage, the OBC may perform light alternate display through the LED display to remind the user that the abnormal grid voltage exists; when the OBC detects that the duty ratio of the PWM signal is abnormal, the OBC can carry out acoustic reminding through the buzzer to remind a user that the duty ratio of the PWM signal is abnormal, for example, the buzzer can send out sound of 'beep' to remind; when the OBC detects that the fluctuation frequency of the power grid is abnormal, optical and acoustic reminding can be carried out through the LED display and the buzzer at the same time so as to remind a user that the fluctuation frequency of the power grid is abnormal, for example, when the LED display carries out light display, the buzzer sends out reminding sound of 'beep', or the light of the LED display and the buzzer carry out alternate reminding.
It should be noted that the foregoing alarm signal is merely exemplary, and the user may perform corresponding setting according to actual needs, which is not limited herein.
Therefore, the embodiment of the application solves the problem that the charging gun jumps due to the fluctuation of the power grid, which is lower in probability, of the vehicle under the condition that the software program of the part is changed and the special parts, the related systems and other equipment are not needed to be added, and also does not increase the failure point of the special parts, so that the slow charging experience of the user for the vehicle is improved.
According to the vehicle charging method, at least one charging parameter of the current power grid is obtained, when the current OBC is judged not to meet the preset charging condition, the charging of the vehicle is stopped, whether the current OBC meets the preset charging condition is continuously judged based on the at least one charging parameter, if the current OBC meets the preset charging condition within the preset duration, the charging of the vehicle is continued, and otherwise, the charging of the vehicle is stopped. Therefore, the problem that the charging requirement cannot be met due to the fact that a vehicle stops being charged due to slow charging and gun jumping caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like is solved, the gun jumping condition in the charging process is reduced by changing a software program to optimize the stability of charging, the OBC can be reserved for a specific time to wait for the OBC to restore the working state when the gun jumping condition occurs, and the vehicle is continuously charged, so that the charging experience of a user is improved.
Next, a charging device of a vehicle according to an embodiment of the present application will be described with reference to the accompanying drawings.
Fig. 4 is a block schematic diagram of a charging device of a vehicle according to an embodiment of the present application.
As shown in fig. 4, the charging device 10 of the vehicle includes: an acquisition module 100, a decision module 200 and a control module 300.
The acquiring module 100 is configured to acquire at least one charging parameter of a current power grid;
a determining module 200, configured to suspend charging the vehicle when it is determined that the current OBC does not meet the preset charging condition according to the at least one charging parameter, and continuously determine whether the current OBC meets the preset charging condition based on the at least one charging parameter; and
and the control module 300 is configured to, if the current OBC meets the preset charging condition based on at least one charging parameter within the preset time period, continue to charge the vehicle, otherwise, stop charging the vehicle.
According to one embodiment of the present application, the charging parameters include at least one of grid voltage, PWM signal duty cycle, and grid ripple frequency.
According to one embodiment of the present application, the determining module 200 is specifically configured to:
judging whether the power grid voltage is smaller than a preset voltage or whether the duty ratio of the PWM signal is larger than or equal to a first preset duty ratio or whether the duty ratio of the PWM signal is smaller than or equal to a second preset duty ratio or whether the fluctuation frequency of the power grid is larger than a preset fluctuation frequency, wherein the second preset duty ratio is smaller than the first preset duty ratio;
if the power grid voltage is smaller than the preset voltage, or the duty ratio of the PWM signal is larger than or equal to the first preset duty ratio, or the duty ratio of the PWM signal is smaller than or equal to the second preset duty ratio, or the fluctuation frequency of the power grid is larger than the preset fluctuation frequency, judging that the current OBC does not meet the preset charging condition.
According to one embodiment of the present application, the control module 300 is specifically configured to:
and controlling the current OBC to restart, and continuously charging the vehicle after the restart is completed.
According to one embodiment of the present application, after stopping charging the vehicle, the control module 300 is further configured to:
generating a stop charge cause based on at least one charging parameter;
and sending the charging stopping reason to a preset mobile terminal.
According to one embodiment of the present application, after stopping charging the vehicle, the control module 300 is further configured to:
generating an optical alarm signal and/or an acoustic alarm signal based on the at least one charging parameter;
the vehicle is controlled to perform acoustic warning and/or optical warning based on the optical warning signal and/or the acoustic warning signal.
According to the charging device of the vehicle, at least one charging parameter of the current power grid is obtained, when the current OBC is judged not to meet the preset charging condition, the charging of the vehicle is stopped, and whether the current OBC meets the preset charging condition is judged continuously based on the at least one charging parameter; if the current OBC meets the preset charging condition within the preset time, the vehicle is continuously charged, otherwise, the vehicle is stopped to be charged. Therefore, the problem that the charging requirement cannot be met due to the fact that a vehicle stops being charged due to slow charging and gun jumping caused by abnormal charging parameters such as voltage, power grid fluctuation frequency and the like is solved, the gun jumping condition in the charging process is reduced by changing a software program to optimize the stability of charging, the OBC can be reserved for a specific time to wait for the OBC to restore the working state when the gun jumping condition occurs, and the vehicle is continuously charged, so that the charging experience of a user is improved.
Fig. 5 is a schematic structural diagram of a vehicle-mounted charger according to an embodiment of the present application. The vehicle-mounted charger may include:
memory 501, processor 502, and a computer program stored on memory 501 and executable on processor 502.
The processor 502 implements the charging method of the vehicle provided in the above embodiment when executing the program.
Further, the vehicle-mounted charger further includes:
a communication interface 503 for communication between the memory 501 and the processor 502.
Memory 501 for storing a computer program executable on processor 502.
The memory 501 may include high-speed RAM memory and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
If the memory 501, the processor 502, and the communication interface 503 are implemented independently, the communication interface 503, the memory 501, and the processor 502 may be connected to each other via a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.
Alternatively, in a specific implementation, if the memory 501, the processor 502, and the communication interface 503 are integrated on a chip, the memory 501, the processor 502, and the communication interface 503 may perform communication with each other through internal interfaces.
The processor 502 may be a central processing unit (Central Processing Unit, abbreviated as CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC), or one or more integrated circuits configured to implement embodiments of the present application.
The present embodiment also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of charging a vehicle as described above.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer cartridge (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium may even be paper or other suitable medium upon which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or part of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, where the program when executed includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented as software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A method of charging a vehicle, comprising the steps of:
acquiring at least one charging parameter of a current power grid;
when the current OBC of the vehicle-mounted charger is judged to not meet the preset charging condition according to the at least one charging parameter, stopping charging the vehicle, and continuously judging whether the current OBC meets the preset charging condition or not based on the at least one charging parameter; and
and if the current OBC meets the preset charging condition based on the at least one charging parameter within the preset time, continuing to charge the vehicle, otherwise, stopping charging the vehicle.
2. The method of claim 1, wherein the charging parameter comprises at least one of a grid voltage, a pulse width modulated PWM signal duty cycle, and a grid ripple frequency.
3. The method of claim 2, wherein the continuously determining whether the current OBC meets the preset charging condition based on the at least one charging parameter comprises:
judging whether the power grid voltage is smaller than a preset voltage, or whether the duty ratio of the PWM signal is larger than or equal to a first preset duty ratio, or whether the duty ratio of the PWM signal is smaller than or equal to a second preset duty ratio, or whether the power grid fluctuation frequency is larger than a preset fluctuation frequency, wherein the second preset duty ratio is smaller than the first preset duty ratio;
and if the grid voltage is smaller than the preset voltage, or the duty ratio of the PWM signal is larger than or equal to the first preset duty ratio, or the duty ratio of the PWM signal is smaller than or equal to the second preset duty ratio, or the fluctuation frequency of the grid is larger than the preset fluctuation frequency, judging that the current OBC does not meet the preset charging condition.
4. The method of claim 1, wherein the continuing to charge the vehicle comprises:
and controlling the current OBC to restart, and continuously charging the vehicle after the restart is completed.
5. The method of any one of claims 1-4, further comprising, after stopping charging the vehicle:
generating a stop charge cause based on the at least one charging parameter;
and sending the charging stopping reason to a preset mobile terminal.
6. The method of claim 5, further comprising, after stopping charging the vehicle:
generating an optical alarm signal and/or an acoustic alarm signal based on the at least one charging parameter;
and controlling the vehicle to carry out acoustic alarm and/or optical alarm based on the optical alarm signal and/or the acoustic alarm signal.
7. A charging device for a vehicle, comprising:
the acquisition module is used for acquiring at least one charging parameter of the current power grid;
the judging module is used for suspending charging of the vehicle when judging that the current OBC does not meet the preset charging condition according to the at least one charging parameter, and continuously judging whether the current OBC meets the preset charging condition or not based on the at least one charging parameter; and
and the control module is used for continuously charging the vehicle if the current OBC meets the preset charging condition based on the at least one charging parameter within the preset time period, and stopping charging the vehicle if the current OBC meets the preset charging condition.
8. The apparatus of claim 7, wherein the charging parameter comprises at least one of a grid voltage, a PWM signal duty cycle, and a grid ripple frequency.
9. A vehicle-mounted charger, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of charging a vehicle as claimed in any one of claims 1 to 6.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor for realizing the charging method of a vehicle according to any one of claims 1-6.
CN202311635153.9A 2023-11-30 2023-11-30 Vehicle charging method and device, vehicle-mounted charger and storage medium Pending CN117507885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311635153.9A CN117507885A (en) 2023-11-30 2023-11-30 Vehicle charging method and device, vehicle-mounted charger and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311635153.9A CN117507885A (en) 2023-11-30 2023-11-30 Vehicle charging method and device, vehicle-mounted charger and storage medium

Publications (1)

Publication Number Publication Date
CN117507885A true CN117507885A (en) 2024-02-06

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Country Link
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