Vehicle charging optimization method and device, vehicle, storage medium and program product

Abstract

The invention relates to the technical field of vehicles, in particular to a vehicle charging optimization method and device, a vehicle, a storage medium and a program product, and the method comprises the steps: detecting whether the vehicle has a charging stop fault or not; if it is detected that the vehicle has the charging stop fault, a reset instruction of the vehicle-mounted charger is generated; and using the reset instruction to control the vehicle-mounted charger to reset. Therefore, the problem of how to improve the efficiency of re-trying charging and the use experience under the condition that the vehicle has the charging stop fault is solved.

Description

Technical Field

[0001] The present application relates to the field of electric vehicle technology, and in particular to a vehicle charging optimization method, device, vehicle, storage medium and program product. Background Art

[0002] In the actual use of electric vehicles, due to the differences in the AC power grids and the on-off characteristics of relays connected to different types of charging piles, when charging is completed, the vehicle's VCU (Vehicle Control Unit) cannot issue a charging end instruction in time, which can easily cause the OBC (On-Board Charger) to mistakenly report the decrease in input voltage and input current to the vehicle network (CAN bus).

[0003] As a result, the VCU will misjudge that the vehicle has a charging stop fault. When the user tries to restart charging, the VCU will detect a fault signal and refuse to issue a new charging instruction, thus preventing the user from charging a second time.

[0004] However, in the related art, the vehicle can reset the charging stop fault by powering off and putting it into sleep mode, allowing the user to restart charging after the vehicle ends its sleep mode. However, since the vehicle powering off and putting it into sleep mode takes a certain amount of time and requires active operation by the user, the recharging process is cumbersome, time-consuming and labor-intensive, which greatly reduces the user experience. Summary of the invention

[0005] The present application provides a vehicle charging optimization method, device, vehicle, storage medium and program product to solve the problem of how to improve the efficiency and user experience of retrying charging when a vehicle has a charging stop failure.

[0006] The first aspect of the present application provides a vehicle charging optimization method, comprising the following steps: detecting whether the vehicle has a charging stop fault; if a charging stop fault is detected in the vehicle, generating a reset instruction for the on-board charger; and controlling the resetting of the on-board charger using the reset instruction.

[0007] Optionally, using a reset instruction to control the on-board charger to reset includes: clearing the charging stop fault information in the memory of the on-board charger.

[0008] Optionally, detecting whether the vehicle has a charging stop fault includes: identifying whether the vehicle is in a charging end state; if the vehicle is in the charging end state, detecting the duration of the vehicle in the charging end state and the actual working instructions of the on-board charger during the duration; if the duration is greater than a preset duration and the actual working instruction is a charging working instruction, determining that the vehicle has a charging stop fault.

[0009] Optionally, identifying whether the vehicle is in a charging end state includes: detecting an input voltage and an input current of an on-board charger; and determining whether the vehicle is in a charging end state based on the input voltage and the input current.

[0010] Optionally, determining whether the vehicle is in a charging end state based on the input voltage and the input current includes: if the input voltage is less than a preset voltage and the input current is less than a preset current, determining that the vehicle is in a charging end state.

[0011] Optionally, before using the reset instruction to control the on-board charger to reset, the method further includes: switching the on-board charger to a standby state.

[0012] The second aspect of the present application provides a vehicle charging optimization device, including: a first detection module, used to detect whether the vehicle has a charging stop fault; a generation module, used to generate a reset instruction of the on-board charger when a charging stop fault is detected in the vehicle; and a control module, used to control the resetting of the on-board charger using the reset instruction.

[0013] Optionally, the control module is further used to clear the charging stop fault information in the memory of the on-board charger.

[0014] Optionally, the first detection module is further used to identify whether the vehicle is in a charging end state; if the vehicle is in a charging end state, then the duration of the vehicle in the charging end state and the actual working instructions of the on-board charger during the duration are detected; if the duration is greater than the preset duration and the actual working instruction is a charging working instruction, it is determined that the vehicle has a charging stop fault.

[0015] Optionally, the first detection module is further used to detect the input voltage and input current of the vehicle charger; and determine whether the vehicle is in a charging end state based on the input voltage and input current.

[0016] Optionally, the first detection module is further configured to determine that the vehicle is in a charging end state if the input voltage is less than a preset voltage and the input current is less than a preset current.

[0017] Optionally, the vehicle charging optimization device further includes: a switching module, which is used to switch the on-board charger to a standby state before controlling the on-board charger to reset using a reset instruction.

[0018] A third aspect of the present application provides a vehicle, 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 a vehicle charging optimization method as described in the above embodiment.

[0019] The fourth aspect of the present application provides a computer-readable storage medium having a computer program or instruction stored thereon. When the computer program or instruction is executed, it is used to implement the vehicle charging optimization method as described in the above embodiment.

[0020] The fifth aspect of the present application provides a computer program product, including: a computer program or instructions, which, when executed, implements the vehicle charging optimization method as described in the above embodiment.

[0021] Therefore, this application has at least the following beneficial effects:

[0022] The embodiment of the present application can directly clear the fault information left in the memory by executing the memory reset mechanism when detecting that the vehicle has a charging stop fault, without powering off, to ensure that the subsequent charging process is not affected by the last remaining information, reducing the cumbersome operation of recharging, and completing the reset of the on-board charger before the user attempts to recharge next time, thereby improving charging efficiency and enhancing user experience. Thus, the problem of how to improve the efficiency and user experience of retrying charging when the vehicle has a charging stop fault is solved.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 A flow chart of a vehicle charging optimization method provided according to an embodiment of the present application;

[0026] Figure 2 A flowchart of powering off after AC charging is completed according to an embodiment of the present application;

[0027] Figure 3 A timing diagram of a charging process provided according to an embodiment of the present application;

[0028] Figure 4 is an exemplary diagram of a vehicle charging optimization device according to an embodiment of the present application;

[0029] Figure 5 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0031] The following describes the vehicle charging optimization method, device, vehicle and storage medium of the embodiment of the present application with reference to the accompanying drawings. In response to the problems mentioned in the above background technology, the present application provides a vehicle charging optimization method. In this method, when a charging stop failure is detected in the vehicle, the fault information left in the memory is directly cleared by executing a memory reset mechanism without powering off, thereby ensuring that the subsequent charging process is not affected by the last remaining information, so that the vehicle can be directly charged without sleeping, thereby improving charging efficiency and enhancing user experience. Thus, the problem of how to improve the efficiency and user experience of retrying charging when a vehicle has a charging stop failure is solved.

[0032] Specifically, Figure 1 A schematic flow chart of a vehicle charging optimization method provided in an embodiment of the present application.

[0033] like Figure 1 As shown, the vehicle charging optimization method includes the following steps:

[0034] In step S101 , it is detected whether the vehicle has a charging stop failure.

[0035] It is understandable that during the vehicle charging process, unexpected charging stops often occur due to various reasons after charging starts, such as charging stops due to insufficient charging fees, charging stops due to insufficient charging power of the charging pile, etc. For the vehicle, when there is an unexpected charging stop, it is determined that the vehicle has a charging stop fault.

[0036] In one embodiment of the present application, detecting whether a vehicle has a charging stop fault includes: identifying whether the vehicle is in a charging end state; if the vehicle is in a charging end state, detecting the duration of the vehicle being in the charging end state and the actual working instruction of the on-board charger during the duration; if the duration is greater than a preset duration and the actual working instruction is a charging working instruction, determining that the vehicle has a charging stop fault. .

[0037] Among them, the preset time length can be set according to actual conditions, such as setting it to 3s, without specific limitation.

[0038] Specifically, if Figure 2 and Figure 3As shown, when the vehicle completes charging or interrupts charging, the OBC will monitor the drop in input voltage and current. At this time, the OBC will check the status of the working instruction currently received from the VCU. If the OBC detects a drop in voltage and current, it finds that the actual working instruction currently received from the VCU is still a charging working instruction, that is, the VCU has not yet issued an end charging instruction. The embodiment of the present application monitors changes in the working instruction status within a preset time length (3s). If within 3s, the working instruction status monitored by the OBC does not switch from the charging working instruction to the end charging instruction or other instructions, it is determined that the vehicle has a charging stop fault. This means that the VCU failed to send a charging end instruction to the OBC in time, causing the OBC to misjudge it as a fault. Through such a detection mechanism, the charging stop fault can be effectively identified, and corresponding measures can be taken.

[0039] In one embodiment of the present application, identifying whether the vehicle is in a charging end state includes detecting the input voltage and input current of the vehicle charger; if the input voltage is less than a preset voltage and the input current is less than a preset current, it is determined that the vehicle is in a charging end state.

[0040] Among them, the preset current and preset voltage are the minimum current and minimum voltage during charging operation, which can be set according to the actual vehicle without specific limitation.

[0041] It is understandable that during the charging process, OBC will continuously monitor the input voltage and input current of the on-board charger. If OBC detects that the input voltage and input current drop outside the working range within the preset time (3 seconds), this usually means that the charging process has ended or an abnormal situation has occurred.

[0042] Furthermore, when the OBC detects that the input voltage and current drop below the minimum current and minimum voltage during vehicle charging, and the status command is still a charging operation command, it will trigger the OBC protection (disconnect the S2 switch and disconnect the power supply circuit) and wait for the input voltage and current to recover or the status command to switch. Because the OBC itself does not determine the cause of the voltage and current drop, and the VCU needs a certain amount of time to determine the vehicle status and switch commands, the OBC will continue to judge for 3 seconds after the input voltage and current drop. If the input voltage and current recover or the status command switches within 3 seconds, it will not be considered a fault and will not be reported. If the voltage and current do not recover or the status command does not switch for more than 3 seconds, the fault will be reported to reduce unnecessary misjudgments and improve the reliability of system operation.

[0043] In step S102, if a charging stop failure is detected in the vehicle, a reset instruction for the on-board charger is generated.

[0044] The reset instruction is an instruction to reset the on-board charger by software or hardware.

[0045] In step S103, the on-board charger is reset by using a reset instruction.

[0046] It should be noted that in the related art, if a charging stop failure is detected in the vehicle, when the user tries to restart the charging, due to the charging stop failure, the VCU will detect a fault signal and refuse to issue a new charging instruction. If the vehicle is directly transferred to other charging piles for charging, it cannot start charging directly because a new charging instruction cannot be issued. Therefore, it is usually necessary to put the entire vehicle into hibernation before resetting the on-board charger, and it can only be recharged after the hibernation ends. Since the vehicle's power-off hibernation method takes a certain amount of time and requires the user to actively operate, the recharging process is cumbersome, time-consuming and labor-intensive, which greatly reduces the user experience.

[0047] To this end, the embodiment of the present application can generate a reset instruction for the on-board charger when a charging stop fault is detected in the vehicle, and directly control the resetting of the on-board charger based on the reset instruction, without performing operations such as powering off the vehicle and hibernating the vehicle. The resetting of the on-board charger can be completed before the user attempts to recharge next time, so that the user's charging operation can be responded to when the user tries to recharge, which greatly reduces the tedious operation of recharging, saves time and effort, and can even make the user unaware of the existence of the charging stop fault, greatly improving the user experience.

[0048] In one embodiment of the present application, before using the reset instruction to control the resetting of the on-board charger, it also includes: switching the on-board charger to a standby state, which can ensure that the on-board charger does not receive conflicting instructions during the resetting process, thereby avoiding potential safety hazards or system instability during the resetting process.

[0049] According to the vehicle charging optimization method proposed in the embodiment of the present application, when a charging stop fault is detected in the vehicle, the fault information left in the memory is directly cleared without powering off by executing the memory reset mechanism, ensuring that the subsequent charging process is not affected by the last left-over information, so that the vehicle can be directly charged without hibernation, improving charging efficiency and enhancing user experience. Thus, the problem of how to improve the efficiency and user experience of retrying charging when a vehicle has a charging stop fault is solved.

[0050] Next, the vehicle charging optimization device proposed according to the embodiment of the present application is described with reference to the accompanying drawings.

[0051] Figure 4 It is a block diagram of a vehicle charging optimization device according to an embodiment of the present application.

[0052] like Figure 4As shown, the vehicle charging optimization device 10 includes: a first detection module 100 , a generation module 200 and a control module 300 .

[0053] Among them, the first detection module 100 is used to detect whether the vehicle has a charging stop fault; the generation module 200 is used to generate a reset instruction for the on-board charger when a charging stop fault is detected in the vehicle; and the control module 300 is used to control the resetting of the on-board charger using the reset instruction.

[0054] In one embodiment of the present application, the control module 300 is further used to clear the fault information in the memory of the on-board charger.

[0055] In one embodiment of the present application, the first detection module 100 is further used to identify whether the vehicle is in a charging end state; if the vehicle is in a charging end state, then the duration of the vehicle being in the charging end state and the actual working instructions of the on-board charger during the duration are detected; if the duration is greater than the preset duration and the actual working instruction is a charging working instruction, then it is determined that the vehicle has a charging stop fault. .

[0056] In one embodiment of the present application, the first detection module 100 is further used to detect the input voltage and input current of the vehicle charger; and determine whether the vehicle is in a charging end state based on the input voltage and input current.

[0057] In one embodiment of the present application, the first detection module 100 is further used to determine that the vehicle is in a charging end state when the input voltage is less than a preset voltage and the input current is less than a preset current.

[0058] In one embodiment of the present application, the vehicle charging optimization device 10 further includes: a switching module, which is used to switch the on-board charger to a standby state before controlling the on-board charger to reset using a reset instruction.

[0059] It should be noted that the aforementioned explanation of the vehicle charging optimization method embodiment is also applicable to the vehicle charging optimization device of this embodiment, and will not be repeated here.

[0060] According to the vehicle charging optimization device proposed in the embodiment of the present application, when a charging stop failure is detected in the vehicle, the fault information left in the memory is directly cleared without powering off by executing the memory reset mechanism, ensuring that the subsequent charging process is not affected by the last left-over information, so that the vehicle can be directly charged without hibernation, improving charging efficiency and enhancing user experience. Thus, the problem of how to improve the efficiency and user experience of retrying charging when a vehicle has a charging stop failure is solved.

[0061] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0062] A memory 501 , a processor 502 , and a computer program stored in the memory 501 and executable on the processor 502 .

[0063] When the processor 502 executes the program, the vehicle charging optimization method provided in the above embodiment is implemented.

[0064] Furthermore, the vehicle also includes:

[0065] The communication interface 503 is used for communication between the memory 501 and the processor 502 .

[0066] The memory 501 is used to store computer programs that can be executed on the processor 502 .

[0067] The memory 501 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0068] 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 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0069] Optionally, 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 can communicate with each other through an internal interface.

[0070] The processor 502 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0071] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which implements the above vehicle charging optimization method when executed by a processor.

[0072] The embodiment of the present application also provides a computer program product, including: a computer program or instructions, when the computer program or instructions are executed, to implement the vehicle charging optimization method as described in the above embodiment.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0075] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0076] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0077] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vehicle charging optimization method, characterized in that: The following steps are involved: Detect whether the vehicle has a charging stop fault; If a charging stop fault is detected in the vehicle, a reset instruction of the on-board charger is generated; The on-board charger is reset by using the reset instruction.

2. The vehicle charging optimization method according to claim 1, characterized in that: The method of controlling the on-board charger to reset by using the reset instruction includes: Clear the charging stop fault information in the memory of the on-board charger.

3. The vehicle charging optimization method according to claim 1, characterized in that: The detecting whether the vehicle has a charging stop fault comprises: Identifying whether the vehicle is in a charging end state; If the vehicle is in a charging end state, detecting a duration for which the vehicle is in the charging end state and an actual working instruction of the on-board charger during the duration; If the duration is greater than a preset duration and the actual working instruction is a charging working instruction, it is determined that a charging stop fault exists in the vehicle.

4. The vehicle charging optimization method according to claim 3, characterized in that: The identifying whether the vehicle is in a charging end state includes: Detecting the input voltage and input current of the on-board charger; It is determined whether the vehicle is in a charging end state according to the input voltage and the input current.

5. The vehicle charging optimization method according to claim 4, characterized in that: The determining whether the vehicle is in a charging end state according to the input voltage and the input current includes: If the input voltage is less than a preset voltage and the input current is less than a preset current, it is determined that the vehicle is in the charging end state.

6. The vehicle charging optimization method according to claim 1, characterized in that: Before using the reset instruction to control the on-board charger to reset, the method further includes: The on-board charger is switched to a standby state.

7. A vehicle charging optimization device, characterized in that: include: A first detection module, used to detect whether the vehicle has a charging stop fault; A generating module, used for generating a reset instruction of the on-board charger when a charging stop fault is detected in the vehicle; A control module is used to control the on-board charger to reset using the reset instruction.

8. A vehicle, characterized in that: include: 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 optimization method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program or instruction stored thereon, characterized in that: When the computer program or instruction is executed, the vehicle charging optimization method according to any one of claims 1 to 6 is implemented.

10. A computer program product comprising: A computer program or instruction, characterized in that when the computer program or instruction is executed, it implements the vehicle charging optimization method according to any one of claims 1 to 6.

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