Charging control methods, devices, vehicles and storage media

Abstract

This application relates to the field of charging technology, and in particular to a charging control method, device, vehicle, and storage medium. The method includes: acquiring the current resistance value of the charging device's confirmation interface during the charging phase; if a jump in the current resistance value is detected to exceed the resistance value range corresponding to the current charging mode, determining the jump type of the current resistance value based on the jump resistance value; and controlling the charging state of the power battery based on the jump type. This solves the problems in the prior art where jumps and deviations occur in the CC / CC2 resistance values ​​of the charging device, directly terminating the charging and discharging process and reducing the robustness of battery-powered vehicles during charging and discharging.

Description

Technical Field

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

[0002] With the development of new energy vehicles, charging and discharging control technology has become a key technology in battery vehicle R&D. The charging and discharging process is an interaction between the battery vehicle and the charging pile / discharging gun, including: physical connection, charging and discharging information exchange, charging and discharging phases, and the end of charging and discharging phases. At the start of physical connection, it is necessary to detect the CC / CC2 resistance value of the charging or discharging gun to ensure that different connection states and charging modes of the charging and discharging gun correspond to a CC / CC2 resistance value range.

[0003] However, during charging and discharging, the CC / CC2 resistance value collected by the electric vehicle still exhibits jumps and fluctuations. The main reasons for this may include: damage to the CC / CC2 acquisition wiring harness or water ingress at the connection points; poor grounding of the CC / CC2 acquisition circuit; the CC / CC2 acquisition circuit grounding wire sharing a grounding wire with other controllers; the controller pulling the CC / CC2 resistance value off while simultaneously controlling the output current of other components during CC / CC2 resistance value acquisition; and hardware issues with the BMS (Battery Management System) itself and the acquisition accuracy affecting the CC / CC2 resistance value. When jumps and deviations occur in the CC / CC2 resistance value, charging is immediately terminated, resulting in poor robustness of the battery vehicle's charging and discharging performance. Summary of the Invention

[0004] One objective of this invention is to provide a charging control method to solve problems such as jumps and deviations in the CC / CC2 resistance value of the charging device in the prior art, which directly terminate the charging and discharging process and reduce the robustness of battery vehicle charging and discharging; a second objective is to provide a charging control device; a third objective is to provide a vehicle; and a fourth objective is to provide a computer-readable storage medium.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A charging control method, applied to a vehicle, includes the following steps: obtaining the current resistance value of the charging device side confirmation interface during the charging phase; if it is detected that the current resistance value jumps to a jump resistance value that exceeds the resistance value range corresponding to the current charging mode, then determining the jump type of the current resistance value based on the jump resistance value; and controlling the charging state of the power battery based on the jump type.

[0007] Based on the above technical means, the embodiments of this application can further confirm the type of change when the resistance value of the charging device changes, and control the charging state of the power battery according to the type of change, such as continuing to charge or stopping charging. This avoids the problem of poor charging robustness caused by directly stopping charging when the resistance value changes. Since the charging state is determined according to the type of change, the robustness of charging and discharging can be effectively improved while ensuring charging safety, thus improving the user's charging experience.

[0008] Furthermore, determining the switching type of the current resistance value based on the switching resistance value includes: if the switching resistance value is within the resistance value range corresponding to other charging modes, then the switching type is determined to be the first type; otherwise, the switching type is determined to be the second type.

[0009] Based on the above technical means, the embodiments of this application can determine the type of switching based on the resistance range corresponding to other charging modes. If the switching resistance is within the resistance range corresponding to other charging modes, the switching type is determined to be the first type of switching to other models; otherwise, it is determined to be the second type. Thus, the type of switching can be accurately determined through the resistance range.

[0010] Furthermore, controlling the charging state of the power battery according to the transition type includes: if the transition type is the first type, then maintaining the current charging mode and continuing to charge; if the transition type is the second type, then ending the charging of the power battery.

[0011] Based on the above technical means, the embodiments of this application can continue to maintain the current charging mode when the transition type is the first type, and end charging when the transition type is the second type. By identifying the transition type to control the charging state, the problem of poor charging robustness caused by directly ending charging when the resistance value changes is avoided. Since the charging state is determined according to the transition type, the robustness of charging and discharging can be effectively improved while ensuring charging safety, thus improving the user's charging experience.

[0012] Furthermore, the confirmation interface includes a first interface for confirming the connection status of the charging device and a second interface for confirming the charging mode of the charging device, and the current resistance value includes a first resistance value of the first interface and a second resistance value of the second interface.

[0013] Furthermore, before obtaining the current resistance value of the charging device side confirmation interface of the power battery during the charging phase, the method includes: after the charging device is connected to the power battery, obtaining a first resistance value and a second resistance value; if both the first resistance value and the second resistance value are within the corresponding resistance value range, then the charging device enters the charging mode corresponding to the second resistance value.

[0014] According to the above technical means, after the charging device is connected to the power battery, the embodiments of this application obtain and identify whether the first resistance value and the second resistance value are within the corresponding resistance value range. If they are within the corresponding resistance value range, the charging mode corresponding to the second resistance value is entered, so as to accurately determine the charging mode to be entered based on the first resistance value and the second resistance value.

[0015] Furthermore, after the charging device enters the charging mode corresponding to the second resistance value, the method further includes: if the second resistance value is within the resistance range of the current charging mode, then controlling the power battery to enter the charging stage; otherwise, ending the charging of the power battery.

[0016] Based on the above technical means, the embodiments of this application can determine whether to enter the charging stage after the charging device enters the charging mode based on whether the second resistance value changes, thereby avoiding entering the charging stage under the condition of a change and ensuring that the second resistance value is within the normal range when the charging device enters the charging stage.

[0017] Furthermore, the charging mode includes one or more of AC charging mode, discharge gun mode, and DC charging mode.

[0018] A charging control device includes: an acquisition module for acquiring the current resistance value of a charging device-side confirmation interface of a power battery during the charging phase; an identification module for determining the transition type of the current resistance value based on the transition resistance value if it is identified that the current resistance value has transitioned to a transition resistance value that exceeds the resistance value range corresponding to the current charging mode; and a control module for controlling the charging state of the power battery based on the transition type.

[0019] Furthermore, the identification module is further configured to: if the switching resistance value is within the resistance range corresponding to other charging modes, then determine that the switching type is the first type; otherwise, determine that the switching type is the second type.

[0020] Furthermore, the identification module is further configured to: if the transition type is the first type, maintain the current charging mode and continue charging; if the transition type is the second type, end the charging of the power battery.

[0021] Furthermore, the acquisition module is further configured to: the confirmation interface includes a first interface for confirming the connection status of the charging device and a second interface for confirming the charging mode of the charging device, and the current resistance value includes a first resistance value of the first interface and a second resistance value of the second interface.

[0022] Furthermore, the acquisition module is further configured to: acquire a first resistance value and a second resistance value after the charging device is connected to the power battery; if both the first resistance value and the second resistance value are within the corresponding resistance range, then the charging device enters the charging mode corresponding to the second resistance value.

[0023] Furthermore, the control module is further configured to: if the second resistance value is within the resistance range of the current charging mode, control the power battery to enter the charging stage; otherwise, end the charging of the power battery.

[0024] A vehicle includes: 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 control method as described in the above embodiments.

[0025] A computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the charging control method as described in the above embodiments.

[0026] The beneficial effects of this invention are:

[0027] (1) The embodiments of this application can further confirm the type of change when the resistance value of the charging device changes, and control the charging state of the power battery according to the type of change, such as continuing to charge or ending the charging, to avoid the problem of poor charging robustness caused by directly ending the charging when the resistance value changes. Since the charging state is determined according to the type of change, the charging and discharging robustness can be effectively improved while ensuring charging safety, thus improving the user's charging experience.

[0028] (2) The embodiments of this application can determine the type of switching based on the resistance range corresponding to other charging modes. If the switching resistance is within the resistance range corresponding to other charging modes, the switching type is determined to be the first type of switching to other models; otherwise, it is determined to be the second type. Thus, the type of switching can be accurately determined by the resistance range.

[0029] (3) In this embodiment, the current charging mode can be maintained when the switching type is the first type, and the charging can be stopped when the switching type is the second type. By identifying the switching type, the charging state can be controlled, avoiding the problem of poor charging robustness caused by directly stopping the charging when the resistance value changes. Since the charging state is determined according to the switching type, the charging and discharging robustness can be effectively improved while ensuring charging safety, thus improving the user's charging experience.

[0030] (4) In this embodiment of the application, after the charging device is connected to the power battery, it obtains and identifies whether the first resistance value and the second resistance value are within the corresponding resistance value range. If they are within the corresponding resistance value range, it enters the charging mode corresponding to the second resistance value, so that the charging mode to be entered can be accurately determined according to the first resistance value and the second resistance.

[0031] (5) In this embodiment of the application, after the charging device enters the charging mode, it can determine whether the second resistance value changes to enter the charging stage, so as to avoid entering the charging stage under the condition of change and ensure that the second resistance value is within the normal range when the charging device enters the charging stage.

[0032] 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

[0033] Figure 1 A flowchart of a charging control method provided in an embodiment of the present invention;

[0034] Figure 2 A flowchart illustrating a charging control method according to an embodiment of the present invention;

[0035] Figure 3 A block diagram of a charging control device provided in an embodiment of the present invention;

[0036] Figure 4 This is a structural schematic diagram of a vehicle provided in an embodiment of the present invention. Detailed Implementation

[0037] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] With the rapid popularization and development of new energy electric vehicles, charging and discharging control technology has become a key technology in the research and development of battery vehicles. Charging and discharging technology needs to meet the needs of users in various usage scenarios.

[0040] The charging and discharging process involves interaction between the battery vehicle and the charging station / discharging gun, as well as the adaptability and compatibility between the power battery and the charging and discharging equipment. Correct exchange of charging and discharging information is a prerequisite for successful charging and discharging. To meet different user needs, various types of charging stations / discharging guns have emerged on the market. Charging stations are mainly divided into slow-charging AC charging stations and fast-charging DC charging stations, each with different current output capabilities. Therefore, ensuring accurate information exchange between the vehicle and various charging stations / discharging guns, and enhancing the robustness of the battery vehicle's charging and discharging, is fundamental to improving battery vehicle quality, reducing charging and discharging problems, and minimizing customer complaints.

[0041] For the interaction of charging and discharging information between the power battery and the charging pile and the vehicle, the information interaction needs to be developed according to strict requirements. The charging and discharging process can be roughly divided into four stages: physical connection completion, charging and discharging information interaction, charging and discharging stage, and charging and discharging end stage. At the beginning of the physical connection, the BCU (Brake Control Unit) detects the CC / CC2 resistance value of the charging or discharging gun through its internal detection circuit to determine the connection status of the charging gun (not connected, partially connected, fully connected) and the charging mode (63A, 32A, 16A, 10A AC charging mode, discharging gun mode, DC charging mode). Due to acquisition errors and other interference, the acquired CC / CC2 resistance value will inevitably fluctuate within a certain range. Therefore, OEMs typically use a CC / CC2 resistance value range corresponding to different connection states and charging modes of the charging and discharging gun to enhance the redundancy of CC / CC2 acquisition and prevent identification errors caused by fluctuations in the CC / CC2 acquired value. CC / CC2 resistance value acquisition is present throughout the entire charging and discharging process. If the acquisition deviation is too large or the acquisition value jumps out of the set resistance value range at any stage of the charging and discharging process, it will cause abnormal termination of charging and discharging, resulting in a poor customer experience.

[0042] Although OEMs have adopted resistance range methods to increase redundancy and reduce charging faults caused by fluctuations in CC / CC2 resistance values, based on actual vehicle testing and market performance, charging and discharging robustness still has some issues. The common causes of this problem during charging and discharging are as follows:

[0043] 1) Damage to the CC / CC2 acquisition harness, water ingress at the acquisition harness connection point, etc.

[0044] 2) The CC / CC2 acquisition circuit has poor grounding, and the high grounding resistance leads to inaccurate data acquisition.

[0045] 3) The grounding wire of the CC / CC2 acquisition circuit is shared with other controllers, and a large current flows through other circuits, resulting in inaccurate acquisition.

[0046] 4) While the controller is acquiring the resistance value of CC / CC2, it also needs to control the output current of other components to pull the resistance value of CC / CC2.

[0047] 5) Problems with the BMS hardware itself and the accuracy of the acquisition may cause jumps or deviations in CC / CC2 acquisition.

[0048] Clearly, it is essential to address the charging and discharging anomalies caused by the jumps and fluctuations in the resistance values ​​of the CC / CC2 sensors in electric vehicles, and to enhance the robustness of battery electric vehicle charging and discharging.

[0049] Specifically, Figure 1 This is a schematic flowchart of a charging control method provided in an embodiment of this application.

[0050] like Figure 1 As shown, the charging control method includes the following steps:

[0051] In step S101, the current resistance value of the charging device side confirmation interface during the charging phase is obtained.

[0052] The charging device can be a charging gun, the confirmation interface can include a first interface for confirming the connection status of the charging device and a second interface for confirming the charging mode of the charging device, and the current resistance value can include the first resistance value of the first interface and the second resistance value of the second interface. The first interface can be a CC interface, the second interface can be a CC2 interface, etc.

[0053] It is understood that the embodiments of this application can obtain the detection signal sent by the charging device and determine the current resistance value of the first interface and the second interface at the charging device based on the detection signal. For example, the embodiments of this application can communicate with the charging device to obtain the resistance values ​​of the CC interface and the CC2 interface.

[0054] In this embodiment of the application, before obtaining the current resistance value of the charging device side confirmation interface of the power battery during the charging phase, the method includes: after the charging device is connected to the power battery, obtaining a first resistance value and a second resistance value; if both the first resistance value and the second resistance value are within the corresponding resistance value range, then the charging device enters the charging mode corresponding to the second resistance value.

[0055] The charging mode can include one or more of AC charging mode, discharge gun mode, and DC charging mode. The corresponding resistance range can be specifically calibrated according to the actual situation, and the corresponding resistance range is different for different connection states or different charging modes. For example, when the device is in the connected state, the corresponding resistance range can be the first range; when it is in the half-connected state, it can be the second range; and when it is in the disconnected state, it can be the third range. The minimum value of the second range is greater than the maximum value of the first range, and the minimum value of the third range is greater than the maximum value of the second range. In this embodiment, the connection state can be determined according to the range of the first resistance value. Similarly, in this embodiment, the specific charging mode can also be determined according to the range of the second resistance value.

[0056] It is understandable that after the charging device is connected to the power battery, it acquires and identifies whether the first resistance value and the second resistance value are within the corresponding resistance range. If they are within the corresponding resistance range, it enters the charging mode corresponding to the second resistance value, so as to accurately determine the charging mode to be entered based on the first resistance value and the second resistance value.

[0057] In this embodiment of the application, after the charging device enters the charging mode corresponding to the second resistance value, the method further includes: if the second resistance value is within the resistance value range of the current charging mode, then the power battery is controlled to enter the charging stage; otherwise, the charging of the power battery is terminated.

[0058] It is understandable that after the charging device enters the charging mode, the charging stage is determined by whether the second resistance value changes, so as to avoid entering the charging stage when the value changes and ensure that the second resistance value is within the normal range when the charging device enters the charging stage.

[0059] In step S102, if it is detected that the current resistance value jumps to a jump resistance value that exceeds the resistance value range corresponding to the current charging mode, the jump type of the current resistance value is determined based on the jump resistance value.

[0060] The resistance range varies depending on the charging mode and can be specifically calibrated. For example, AC charging mode, discharge gun mode, and DC charging mode each correspond to different resistance ranges.

[0061] It is understandable that if the current resistance value jumps beyond the resistance value range corresponding to the current charging mode, the type of jump should be further confirmed when the resistance value of the charging device jumps, so as to determine the charging status based on the jump type.

[0062] In this embodiment of the application, determining the switching type of the current resistance value based on the switching resistance value includes: if the switching resistance value is within the resistance value range corresponding to other charging modes, then the switching type is determined to be the first type; otherwise, the switching type is determined to be the second type.

[0063] It is understandable that when the switching resistance value is within the resistance value range corresponding to other charging modes, the switching type is determined to be the first type under other charging modes; otherwise, it is determined to be the second type. Thus, the switching type can be accurately determined by the resistance value range.

[0064] In step S103, the charging state of the power battery is controlled according to the switching type.

[0065] The charging status can include normal charging status and charging stopped status.

[0066] It is understandable that when the transition type is type one, the power battery is kept in a normal charging state, and when the transition type is type two, the power battery is stopped charging. Determining the charging state based on the transition type can effectively improve the robustness of charging and discharging while ensuring charging safety, and enhance the user's charging experience.

[0067] In this embodiment of the application, controlling the charging state of the power battery according to the transition type includes: if the transition type is the first type, then maintaining the current charging mode and continuing to charge; if the transition type is the second type, then ending the charging of the power battery.

[0068] It is understandable that when the transition type is type one, that is, the transition resistance value is within the resistance value range corresponding to other charging modes, although a transition has occurred, it may be due to hardware problems or the influence of acquisition accuracy. Therefore, in this case, continuing to charge will not lead to charging safety issues, so the current charging mode can be maintained in this embodiment. When the transition type is type two, it can be determined that there is a problem with the charging connection. Therefore, in order to avoid safety issues caused by continuing to charge, it is necessary to end the charging. Thus, by identifying the transition type to control the charging state, the problem of poor charging robustness caused by directly ending the charging when the resistance value changes is avoided. Since the charging state is determined according to the transition type, the robustness of charging and discharging can be effectively improved while ensuring charging safety, thereby improving the user's charging experience.

[0069] According to the charging control method proposed in the embodiments of this application, the resistance value of the charging device is detected. If the resistance value is within the normal range, the charging mode is entered. When the resistance value of the charging device changes, the type of change is further confirmed, and the charging state of the power battery is controlled according to the type of change. Thus, the problems of change and deviation in the CC / CC2 resistance value of the charging device in the prior art, which directly terminates the charging and discharging process and reduces the robustness of battery vehicle charging and discharging, are solved.

[0070] The charging control method will be further explained below using the AC charging process as an example. The charging equipment will be a charging gun as an example. Figure 2 As shown, the specific steps are as follows:

[0071] Step 1: When the user plugs in the charging gun, the vehicle identifies the CC resistance signal of the charging gun and determines the AC charging mode by the CC resistance value.

[0072] Step 2: Confirm whether the connection is completed correctly. If an identification error occurs at the beginning, the charging process will be skipped and charging will end. If the identification is correct, the normal interaction process will begin.

[0073] Step 3: After correctly identifying and completing the interaction information between the vehicle and the charging station, the vehicle enters the normal charging state and continues to identify the CC resistance value.

[0074] Step 4: If the CC resistance fluctuation deviation remains within the original mode range, continue charging; when the CC resistance jumps to other mode ranges, maintain the original mode and continue charging; when the CC jumps to half-connection or not connected, end charging.

[0075] Next, the charging control device proposed according to the embodiments of this application is described with reference to the accompanying drawings.

[0076] Figure 3 This is a block diagram of a charging control device according to an embodiment of this application.

[0077] like Figure 3 As shown, the charging control device 10 includes: an acquisition module 100, an identification module 200, and a control module 300.

[0078] The acquisition module 100 is used to acquire the current resistance value of the charging device side confirmation interface of the power battery during the charging phase; the identification module 200 is used to determine the jump type of the current resistance value based on the jump resistance value if it is detected that the current resistance value jumps to a jump resistance value that exceeds the resistance value range corresponding to the current charging mode; and the control module 300 is used to control the charging state of the power battery according to the jump type.

[0079] In this embodiment of the application, the identification module 200 is further configured to: if the switching resistance value is within the resistance value range corresponding to other charging modes, then determine that the switching type is the first type; otherwise, determine that the switching type is the second type.

[0080] In this embodiment of the application, the identification module 200 is further configured to: if the transition type is the first type, maintain the current charging mode and continue charging; if the transition type is the second type, end the charging of the power battery.

[0081] In this embodiment of the application, the acquisition module 100 is further configured to: confirm the interface including a first interface for confirming the connection status of the charging device and a second interface for confirming the charging mode of the charging device, and the current resistance value includes a first resistance value of the first interface and a second resistance value of the second interface.

[0082] In this embodiment of the application, the acquisition module 100 is further configured to: acquire a first resistance value and a second resistance value after the charging device is connected to the power battery; if both the first resistance value and the second resistance value are within the corresponding resistance value range, then the charging device enters the charging mode corresponding to the second resistance value.

[0083] In this embodiment of the application, the control module 300 is further configured to: if the second resistance value is within the resistance value range of the current charging mode, control the power battery to enter the charging stage; otherwise, end the charging of the power battery.

[0084] It should be noted that the foregoing explanation of the charging control method embodiment also applies to the charging control device of this embodiment, and will not be repeated here.

[0085] According to the charging control device proposed in the embodiments of this application, the charging device enters the charging mode if the resistance value of the charging device is within the normal range. When the resistance value of the charging device changes, the type of change is further confirmed, and the charging state of the power battery is controlled according to the type of change. Thus, the problems of change and deviation in the CC / CC2 resistance value of the charging device in the prior art, which directly terminates the charging and discharging process and reduces the robustness of battery vehicle charging and discharging, are solved.

[0086] Figure 4 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include:

[0087] The memory 401, the processor 402, and the computer program stored on the memory 401 and capable of running on the processor 402.

[0088] When the processor 402 executes the program, it implements the charging control method provided in the above embodiments.

[0089] Furthermore, the vehicle also includes:

[0090] Communication interface 403 is used for communication between memory 401 and processor 402.

[0091] The memory 401 is used to store computer programs that can run on the processor 402.

[0092] The memory 401 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0093] If the memory 401, processor 402, and communication interface 403 are implemented independently, then the communication interface 403, memory 401, and processor 402 can be interconnected via a bus to complete communication between them. 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 address bus, data bus, control bus, etc. For ease of representation, Figure 4 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.

[0094] Optionally, in a specific implementation, if the memory 401, processor 402, and communication interface 403 are integrated on a single chip, then the memory 401, processor 402, and communication interface 403 can communicate with each other through an internal interface.

[0095] Processor 402 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of this application.

[0096] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the charging control method described above.

[0097] 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.

[0098] 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.

[0099] 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 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.

[0100] 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 (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0101] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0102] 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 charging control method, characterized in that, Includes the following steps: Obtain the current resistance value of the charging device's confirmation interface during the charging phase; If it is detected that the current resistance value jumps to a jump resistance value that is outside the resistance value range corresponding to the current charging mode, then the jump type of the current resistance value is determined based on the jump resistance value. The charging state of the power battery is controlled according to the jump type; The step of determining the transition type of the current resistance value based on the transition resistance value includes: If the switching resistor value is within the resistance range corresponding to other charging modes, then the switching type is determined to be the first type; otherwise, the switching type is determined to be the second type. Controlling the charging state of the power battery according to the transition type includes: If the transition type is the first type, then the current charging mode is maintained and charging continues; If the transition type is the second type, then the charging of the power battery is terminated.

2. The charging control method according to claim 1, characterized in that, The confirmation interface includes a first interface for confirming the connection status of the charging device and a second interface for confirming the charging mode of the charging device. The current resistance value includes a first resistance value of the first interface and a second resistance value of the second interface.

3. The charging control method according to claim 2, characterized in that, Before obtaining the current resistance value of the charging equipment side confirmation interface of the power battery during the charging phase, the following is included: After the charging device is connected to the power battery, the first resistance value and the second resistance value are obtained; If both the first resistance value and the second resistance value are within their respective resistance ranges, the charging device will enter the charging mode corresponding to the second resistance value.

4. The charging control method according to claim 3, characterized in that, After causing the charging device to enter the charging mode corresponding to the second resistance value, the method further includes: If the second resistance value is within the resistance range of the current charging mode, the power battery is controlled to enter the charging stage; otherwise, the charging of the power battery is terminated.

5. The charging control method according to any one of claims 1-4, characterized in that, The charging mode includes one or more of AC charging mode, discharge gun mode and DC charging mode.

6. A charging control device, characterized in that, The charging control device is used to implement the charging control method as described in any one of claims 1-5, and the charging control device includes: The acquisition module is used to acquire the current resistance value of the charging equipment side confirmation interface of the power battery during the charging phase; The identification module is used to determine the transition type of the current resistance value based on the transition resistance value if it is detected that the current resistance value has transitioned to a transition resistance value that exceeds the resistance value range corresponding to the current charging mode. The control module is used to control the charging state of the power battery according to the switching type.

7. A vehicle, 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 control method as described in any one of claims 1-5.

8. 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 control method as described in any one of claims 1-5.

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