Insulation fault treatment method of vehicle and vehicle

Abstract

The present application provides a vehicle insulation fault processing method and a vehicle, the processing method comprising: obtaining historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurred in a target vehicle during historical driving; when the historical insulation fault information indicates that an insulation fault occurred, controlling the target vehicle not to be powered on; when real-time insulation fault information is received, controlling whether the target vehicle is powered on according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault occurred, controlling the target vehicle not to be powered on, and when the real-time insulation fault information indicates that no insulation fault occurred, controlling the target vehicle to be powered on, thereby solving the problem in the prior art that vehicles are frequently powered on and off when an insulation fault occurs.

Description

Technical Field

[0001] The present application relates to a vehicle, and more specifically, to a method for handling insulation faults of a vehicle, a computer-readable storage medium, a processor, and a vehicle. Background Art

[0002] Among the related technologies, new energy vehicles are gradually recognized by the market. Compared with traditional vehicles, the biggest feature of new energy vehicles is the use of high-voltage power batteries as the power source of the vehicle. The voltage of the high-voltage system of new energy vehicles is much higher than the safe voltage of the human body. Once an insulation failure occurs, it will seriously endanger the personal safety of the driver and passengers. New energy vehicle products are currently in a rapid development stage, and the measures for detecting insulation failures and handling insulation failures are still imperfect.

[0003] Existing new energy vehicles generally use an insulation fault detection module to detect the insulation resistance value and determine whether an insulation fault occurs. If an insulation fault occurs, the insulation fault resistance value or insulation fault status is stored and the driver is prompted through the instrument panel; after receiving the insulation fault, the insulation fault processing module determines whether the current vehicle speed meets the power-off conditions. If it does, the power-off operation is performed and power-on is prohibited again to ensure the safety of the driver and passengers. This solution mainly has the following problems: 1) When the insulation fault detection function and the insulation fault processing function are implemented by two controllers respectively, when the driver tries to power on the high voltage again in the next driving cycle after the insulation fault occurs, it takes a certain amount of time for the insulation fault processing controller to complete the initialization and receive the fault status stored by the insulation fault detection controller through the vehicle communication bus. At this time, the vehicle may have completed power-on, and when the insulation fault resistance value or insulation fault status is received, it needs to be quickly powered off. On the one hand, there is a risk of electric shock when a vehicle with an insulation failure is powered on again; on the other hand, if the customer tries multiple times, the vehicle will be frequently powered on and off, which may cause user complaints; 2) When an insulation failure occurs in the vehicle, causing the insulation fault detection controller to fail and the insulation fault cannot be sent to the fault handling controller, the vehicle does not have any fault prompt and can still be powered on and driven, which will greatly increase the risk of electric shock for the driver and passengers.

[0004] Since the function allocation of control systems of different manufacturers is different, the existing solution is only applicable to the insulation fault detection function and the insulation fault processing function located in the same controller, and the solution has poor versatility.

[0005] With respect to the above-mentioned problems existing in the related technologies, no effective solution has been proposed yet. Summary of the invention

[0006] The main purpose of the present application is to provide a vehicle insulation fault processing method, a computer-readable storage medium, a processor and a vehicle, so as to solve the problem in the prior art that the vehicle frequently powers on and off when an insulation fault occurs.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for handling insulation faults of a vehicle is provided, comprising: obtaining historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurred in a target vehicle during historical driving; when the historical insulation fault information indicates that an insulation fault occurred, controlling the target vehicle not to be powered on; when real-time insulation fault information is received, controlling whether the target vehicle is powered on according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault occurred, controlling the target vehicle not to be powered on, and when the real-time insulation fault information indicates that no insulation fault occurred, controlling the target vehicle to be powered on.

[0008] Optionally, when historical insulation fault information indicates that an insulation fault has occurred, after controlling the target vehicle not to be powered on, the method includes: when real-time insulation fault information indicates that there is no fault, sending first prompt information, the first prompt information being used to indicate and prompt the user to restart the target vehicle.

[0009] Optionally, when the real-time insulation fault information indicates that no insulation fault has occurred, after controlling the target vehicle to be powered on, the method includes: determining in real time whether real-time insulation fault information indicating that an insulation fault has occurred is received; when the real-time insulation fault information indicating that an insulation fault has occurred is received, determining a working power source of the target vehicle, wherein the working power source is one of the following: a high-voltage power system drive motor of the target vehicle, an oil-electric hybrid drive of the target vehicle; and controlling the movement of the target vehicle according to the working power source.

[0010] Optionally, according to the working power source, the action of the target vehicle is controlled, including: when the working power source is a high-voltage power system driving motor, obtaining a first vehicle speed of the target vehicle; when the first vehicle speed is greater than or equal to a first predetermined vehicle speed, sending a second prompt message, the second prompt message is used to prompt the user to stop the vehicle; when the first vehicle speed is less than the first predetermined vehicle speed, controlling the target vehicle to perform a power-off operation.

[0011] Optionally, controlling the action of the target vehicle according to the working power source also includes: when the working power source is an oil-electric hybrid drive, obtaining a second vehicle speed of the target vehicle; when the second vehicle speed is greater than or equal to a second predetermined vehicle speed, sending a third prompt message, the third prompt message being used to prompt the user to slow down; when the second vehicle speed is less than the second predetermined vehicle speed, controlling the target vehicle to perform a power-off operation.

[0012] Optionally, before acquiring the historical insulation fault information, the method further includes: storing the historical insulation fault information in an insulation fault processing module of the target vehicle; and reading the historical insulation fault information from the insulation fault processing module.

[0013] Optionally, the method further includes: upon receiving the real-time insulation fault information, after the current driving is completed, storing the real-time insulation fault information as historical insulation fault information.

[0014] In order to achieve the above-mentioned purpose, according to another aspect of the present application, a computer-readable storage medium is provided, the computer-readable storage medium comprising a stored program, wherein the program executes any one of the above-mentioned vehicle insulation fault processing methods.

[0015] In order to achieve the above-mentioned purpose, according to another aspect of the present application, a processor is provided, and the processor is used to run a program, wherein the program executes any one of the above-mentioned vehicle insulation fault processing methods.

[0016] In order to achieve the above-mentioned purpose, according to another aspect of the present application, a vehicle is provided, comprising: one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the one or more memories and are configured to be executed by the one or more processors, and the one or more programs include a method for executing an insulation fault processing method of any one of the above-mentioned vehicles.

[0017] The technical solution of the present application is applied, by obtaining historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurs in a target vehicle during historical driving; when the historical insulation fault information indicates that an insulation fault occurs, the target vehicle is controlled not to be powered on; when real-time insulation fault information is received, whether the target vehicle is powered on is controlled according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault occurs, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault occurs, the target vehicle is controlled to be powered on. In this solution, historical insulation fault information is obtained, and when the historical insulation fault information indicates that an insulation fault has occurred, the vehicle is controlled not to be powered on, and real-time insulation fault information is obtained. Whether the vehicle is powered on is controlled based on whether the real-time insulation fault information indicates that an insulation fault has occurred. When the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on, thereby reducing the risk of electric shock to users and improving the accuracy of insulation fault judgment. This solution avoids the problem in the prior art that the insulation fault processing controller completes initialization and then receives the fault information stored in the insulation fault detection controller through the vehicle communication bus, which takes a certain amount of time, causing the vehicle to frequently power on and then off, thereby solving the problem in the prior art that the vehicle frequently powers on and off when an insulation fault occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 The process of a method for handling insulation failure of a vehicle according to an embodiment of the present application is shown. Figure 1 ;

[0020] Figure 2 A schematic diagram of an insulation fault processing device for a vehicle according to an embodiment of the present application is shown;

[0021] Figure 3 A flow chart for determining insulation fault according to an embodiment of the present application is shown;

[0022] Figure 4 The process of a method for handling insulation failure of a vehicle according to an embodiment of the present application is shown. Figure 2 ;

[0023] Figure 5 A flow chart of insulation fault prompt of a vehicle according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be intermediate elements. Moreover, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element through a third element.

[0027] As mentioned in the background technology, in the prior art, there is a situation where vehicles frequently power on and off when an insulation fault occurs. In order to solve the above problem, in a typical embodiment of the present application, a vehicle insulation fault processing method, a computer-readable storage medium, a processor and a vehicle are provided.

[0028] According to an embodiment of the present application, a method for handling insulation failure of a vehicle is provided.

[0029] Figure 1 The process of a method for handling insulation failure of a vehicle according to an embodiment of the present application is as follows Figure 1 .like Figure 1 As shown, the method comprises the following steps:

[0030] Step S101, obtaining historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurs in a target vehicle during historical driving;

[0031] Step S102, when the historical insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on;

[0032] Step S103, when real-time insulation fault information is received, whether the target vehicle is powered on is controlled according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on. In this method, historical insulation fault information is obtained, and when the historical insulation fault information indicates that an insulation fault has occurred, the vehicle is controlled not to be powered on, and real-time insulation fault information is obtained. Whether the vehicle is powered on is controlled based on whether the real-time insulation fault information indicates that an insulation fault has occurred. When the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on, thereby reducing the risk of electric shock to the user and improving the accuracy of insulation fault judgment. This solution controls the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault has occurred, obtains real-time insulation fault information, and controls whether the vehicle is powered on based on whether the real-time insulation fault information indicates that an insulation fault has occurred. This avoids the problem in the prior art that the insulation fault processing controller completes initialization and then receives the fault information stored in the insulation fault detection controller through the vehicle communication bus, which takes a certain amount of time, causing the vehicle to frequently power on and then off, thereby solving the problem in the prior art that the vehicle frequently powers on and off when an insulation fault occurs.

[0033] Specifically, historical insulation fault information is stored in the insulation fault processing module of the vehicle, and real-time insulation fault information is detected by the insulation fault detection module of the vehicle. The historical insulation fault information and real-time insulation fault information of the present application are obtained by different modules respectively. The insulation fault detection module and insulation fault processing module of the present application can be distributed in the same controller of the vehicle, or in different controllers of the vehicle, which meets the needs of different automobile manufacturers to design vehicles and has strong versatility in insulation fault processing. In the process of preparing to power on the vehicle, when the historical insulation fault information indicates that an insulation fault has occurred, the target vehicle is first controlled not to be powered on, and the real-time insulation fault information is detected to determine whether an insulation fault has occurred. Whether the vehicle is powered on is determined based on whether an insulation fault has occurred. The historical insulation fault information stored in the insulation fault processing module and the real-time insulation fault information sent by the insulation fault detection module are comprehensively used to make judgments, thereby avoiding the situation where the vehicle can still be powered on or frequently powered on and off when there is an insulation fault, thereby ensuring the safety of users.

[0034] In a specific embodiment of the present application, when the historical insulation fault information indicates that an insulation fault has occurred, after the target vehicle is controlled not to be powered on, the method includes: when the real-time insulation fault information indicates that there is no fault, sending a first prompt message, the first prompt message is used to indicate and prompt the user to restart the target vehicle. In the method, when the real-time insulation fault information indicates that there is no fault, a prompt message to restart the vehicle is sent to the user to determine whether the vehicle can be powered on again after restarting, so as to eliminate the insulation fault and ensure the driving safety of the user.

[0035] Specifically, when the historical insulation fault information of the vehicle indicates that an insulation fault has occurred and the real-time insulation fault information of this driving is no fault, it means that the vehicle has not had any insulation fault. After restarting the vehicle, the historical insulation fault information is cleared and the vehicle is powered on smoothly.

[0036] It should be noted that the prompt information in the present application can be sound prompt information, text prompt information and light prompt information.

[0037] In a specific embodiment of the present application, when the real-time insulation fault information indicates that no insulation fault has occurred, after the target vehicle is powered on, the method includes: determining in real time whether the real-time insulation fault information indicating that an insulation fault has occurred is received; when the real-time insulation fault information indicating that an insulation fault has occurred is received, determining the working power source of the target vehicle, wherein the working power source is one of the following: the high-voltage power system drive motor of the target vehicle, the oil-electric hybrid drive of the target vehicle; and controlling the target vehicle to move according to the working power source. In this method, it is determined in real time whether the real-time insulation fault information is received, wherein the real-time insulation fault information is used to indicate that an insulation fault has occurred. When an insulation fault has occurred, the vehicle has different working power sources, and the further movement of the vehicle is controlled according to the working power source of the vehicle, and the driving of the vehicle is controlled according to the actual situation of the vehicle, thereby ensuring the driving safety of the user.

[0038] Specifically, electric vehicles are divided into pure electric vehicles and hybrid vehicles. Pure electric vehicles are powered by a high-voltage power supply system driving the motor, and hybrid vehicles are powered by a high-voltage power supply system driving the motor and the engine. The further movement of the vehicle is controlled based on the vehicle's working power source to avoid sudden power cut-off during high-speed driving that affects user driving safety. The vehicle is powered off based on the vehicle's power system configuration and the actual state of the vehicle.

[0039] In a specific embodiment of the present application, the target vehicle is controlled to move according to the working power source, including: when the working power source is a high-voltage power system drive motor, the first speed of the target vehicle is obtained; when the first speed is greater than or equal to the first predetermined speed, a second prompt message is sent, and the second prompt message is used to prompt the user to stop the vehicle; when the first speed is less than the first predetermined speed, the target vehicle is controlled to perform a power-off operation. In this method, the working power source of the vehicle is a high-voltage power system drive motor, and the user is prompted whether to stop the vehicle or whether to control the vehicle to power off according to whether the vehicle speed meets the preset conditions. The vehicle's movement is controlled according to the vehicle's power source and speed, thereby ensuring the user's driving safety.

[0040] Specifically, when the vehicle's power source is only the high-voltage power system driving the motor, when it is judged that the vehicle speed is greater than or equal to V1kM / h, a parking prompt message is sent to the vehicle's insulation fault prompt module to remind the driver to slow down and stop as soon as possible. When the vehicle speed is less than V1kM / h, the vehicle is controlled to perform a power-off operation. The vehicle speed V1 can be 5kM / h.

[0041] In a specific embodiment of the present application, the target vehicle is controlled according to the working power source, and further includes: when the working power source is a hybrid drive, obtaining the second speed of the target vehicle; when the second speed is greater than or equal to the second predetermined speed, sending a third prompt message, the third prompt message is used to prompt the user to slow down; when the second speed is less than the second predetermined speed, controlling the target vehicle to perform a power-off operation. In this method, the working power source of the vehicle is a hybrid drive, and the user is prompted whether to slow down or control whether the vehicle is powered off according to whether the speed meets the preset conditions. The vehicle's actions are controlled according to the power source and speed of the vehicle, thereby ensuring the user's driving safety.

[0042] Specifically, when the vehicle has other working power sources besides the high-voltage power system drive motor, such as an engine, the maximum vehicle speed V2 kM / h in limp mode is calculated based on the current actual driving capacity of the power source, wherein the limp mode is a driving mode in which a failure occurs in the high-voltage power system drive motor of the vehicle. When it is determined that the vehicle speed is greater than or equal to V2 kM / h, a deceleration prompt message is sent to the insulation fault prompt module to prompt the user to decelerate. When the vehicle speed is less than V2 kM / h, the vehicle is controlled to power off and enter a limp state.

[0043] In a specific embodiment of the present application, before obtaining the historical insulation fault information, the method further includes: storing the historical insulation fault information in the insulation fault processing module of the target vehicle; and reading the historical insulation fault information from the insulation fault processing module. In this method, the insulation fault processing module stores the historical insulation fault information, and the historical insulation fault information is obtained by the insulation fault processing module, which meets the requirements of different automobile manufacturers for insulation fault processing, has strong versatility in different vehicles, avoids the situation where the vehicle can be frequently powered on and off even if there is an insulation fault, and ensures the safety of users.

[0044] Specifically, the insulation fault processing module stores historical insulation fault information to meet the design requirements of different vehicles. The insulation fault detection module and the insulation fault processing module can be in the same controller or in different controllers, avoiding the situation where the vehicle can be frequently powered on and off even if there is an insulation fault.

[0045] In a specific embodiment of the present application, the method further includes: when receiving the real-time insulation fault information, after the current driving is completed, the real-time insulation fault information is stored as the historical insulation fault information. In the method, the real-time insulation fault information is stored after the current driving is completed, ensuring that the historical insulation fault information can be received when the next driving starts, thereby ensuring the storage of the historical insulation fault information.

[0046] Specifically, after each round of driving, the real-time insulation fault information generated during each round of driving is stored to determine whether the real-time insulation fault information indicates that an insulation fault has occurred, which serves as a control condition for whether the vehicle can be powered on in the next round.

[0047] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0048] An embodiment of the present invention provides a computer-readable storage medium on which a program is stored. When the program is executed by a processor, the above-mentioned vehicle insulation fault processing method is implemented.

[0049] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the program executes the above-mentioned vehicle insulation fault processing method when running.

[0050] An embodiment of the present invention provides a vehicle, comprising: one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include an insulation fault processing method for executing any one of the above-mentioned vehicles.

[0051] The embodiment of the present application also provides a vehicle insulation fault processing device. It should be noted that the vehicle insulation fault processing device of the embodiment of the present application can be used to execute the vehicle insulation fault processing method provided in the embodiment of the present application. The following introduces a vehicle insulation fault processing device provided in the embodiment of the present application.

[0052] Figure 2 Schematic diagram of a vehicle insulation fault processing device according to an embodiment of the present application. Figure 2 As shown, the device includes: an acquisition unit 201, which is used to acquire historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurs in a target vehicle during a historical driving process; a first control unit 202, which is used to control the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault occurs; a second control unit 203, which is used to control whether the target vehicle is powered on according to the real-time insulation fault information when real-time insulation fault information is received, wherein when the real-time insulation fault information indicates that an insulation fault occurs, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault occurs, the target vehicle is controlled to be powered on. In the device, historical insulation fault information is obtained, and when the historical insulation fault information indicates that an insulation fault has occurred, the vehicle is controlled not to be powered on, and real-time insulation fault information is obtained. Whether the vehicle is powered on is controlled based on whether the real-time insulation fault information indicates that an insulation fault has occurred. When the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on, thereby reducing the risk of electric shock to the user and improving the accuracy of insulation fault judgment. This solution controls the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault has occurred, obtains real-time insulation fault information, and controls whether the vehicle is powered on based on whether the real-time insulation fault information indicates that an insulation fault has occurred. This avoids the problem in the prior art that the insulation fault processing controller completes initialization and then receives the fault information stored in the insulation fault detection controller through the vehicle communication bus, which takes a certain amount of time, causing the vehicle to frequently power on and then off, thereby solving the problem in the prior art that the vehicle frequently powers on and off when an insulation fault occurs.

[0053] Specifically, historical insulation fault information is stored in the insulation fault processing module of the vehicle, and real-time insulation fault information is detected by the insulation fault detection module of the vehicle. The historical insulation fault information and real-time insulation fault information of the present application are obtained by different modules respectively. The insulation fault detection module and insulation fault processing module of the present application can be distributed in the same controller of the vehicle, or in different controllers of the vehicle, which meets the needs of different automobile manufacturers to design vehicles and has strong versatility in insulation fault processing. In the process of preparing to power on the vehicle, when the historical insulation fault information indicates that an insulation fault has occurred, the target vehicle is first controlled not to be powered on, and the real-time insulation fault information is detected to determine whether an insulation fault has occurred. Whether the vehicle is powered on is determined based on whether an insulation fault has occurred. The historical insulation fault information stored in the insulation fault processing module and the real-time insulation fault information sent by the insulation fault detection module are comprehensively used to make judgments, thereby avoiding the situation where the vehicle can still be powered on or frequently powered on and off when there is an insulation fault, thereby ensuring the safety of users.

[0054] In a specific embodiment of the present application, the device includes: a sending unit, which is used to control the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault has occurred, and when the real-time insulation fault information indicates that there is no fault, send a first prompt message, the first prompt message is used to indicate and prompt the user to restart the target vehicle. In the device, when the real-time insulation fault information indicates that there is no fault, a prompt message to restart the vehicle is sent to the user to determine whether the vehicle can be powered on again after restarting, so as to eliminate the insulation fault and ensure the driving safety of the user.

[0055] Specifically, when the historical insulation fault information of the vehicle indicates that an insulation fault has occurred and the real-time insulation fault information of this driving is no fault, it means that the vehicle has not had any insulation fault. After restarting the vehicle, the historical insulation fault information is cleared and the vehicle is powered on smoothly.

[0056] It should be noted that the prompt information in the present application can be sound prompt information, text prompt information and light prompt information.

[0057] In a specific embodiment of the present application, the device includes: a first determination unit, which is used to determine in real time whether real-time insulation fault information indicating that an insulation fault has occurred is received after the target vehicle is powered on when the real-time insulation fault information indicates that no insulation fault has occurred; a second determination unit, which is used to determine the working power source of the target vehicle when the real-time insulation fault information indicating that an insulation fault has occurred is received, wherein the working power source is one of the following: a high-voltage power system drive motor of the target vehicle, a hybrid drive of the target vehicle; and a third control unit, which is used to control the movement of the target vehicle according to the working power source. In the device, it is determined in real time whether real-time insulation fault information is received, wherein the real-time insulation fault information is used to indicate that an insulation fault has occurred. When an insulation fault has occurred, the vehicle has different working power sources, and the further movement of the vehicle is controlled according to the working power source of the vehicle, and the driving of the vehicle is controlled according to the actual situation of the vehicle, thereby ensuring the driving safety of the user.

[0058] Specifically, electric vehicles are divided into pure electric vehicles and hybrid vehicles. Pure electric vehicles are powered by a high-voltage power supply system driving the motor, and hybrid vehicles are powered by a high-voltage power supply system driving the motor and the engine. The further movement of the vehicle is controlled based on the vehicle's working power source to avoid sudden power cut-off during high-speed driving that affects user driving safety. The vehicle is powered off based on the vehicle's power system configuration and the actual state of the vehicle.

[0059] In a specific embodiment of the present application, the third control unit includes: a first acquisition subunit, which is used to acquire the first speed of the target vehicle when the working power source is a high-voltage power system drive motor; a first sending subunit, which is used to send a second prompt message when the first speed is greater than or equal to the first predetermined speed, and the second prompt message is used to prompt the user to stop the vehicle; a first control subunit, which is used to control the target vehicle to perform a power-off operation when the first speed is less than the first predetermined speed. In this device, the working power source of the vehicle is a high-voltage power system drive motor. Depending on whether the vehicle speed meets the preset conditions, the user is prompted whether to stop the vehicle, or whether the vehicle is controlled to power off. The vehicle's actions are controlled according to the vehicle's power source and speed, thereby ensuring the user's driving safety.

[0060] Specifically, when the vehicle's power source is only the high-voltage power system driving the motor, when it is judged that the vehicle speed is greater than or equal to V1kM / h, a parking prompt message is sent to the vehicle's insulation fault prompt module to remind the driver to slow down and stop as soon as possible. When the vehicle speed is less than V1kM / h, the vehicle is controlled to perform a power-off operation. The vehicle speed V1 can be 5kM / h.

[0061] In a specific embodiment of the present application, the third control unit also includes: a second acquisition subunit, which is used to acquire the second speed of the target vehicle when the working power source is a hybrid drive; a second sending subunit, which is used to send a third prompt message when the second speed is greater than or equal to the second predetermined speed, and the third prompt message is used to prompt the user to slow down; a second control subunit is used to control the target vehicle to perform a power-off operation when the second speed is less than the second predetermined speed. In this device, the working power source of the vehicle is a hybrid drive, and the user is prompted whether to slow down or control whether the vehicle is powered off based on whether the speed meets the preset conditions. The vehicle's actions are controlled based on the power source and speed of the vehicle, thereby ensuring the user's driving safety.

[0062] Specifically, when the vehicle has other working power sources besides the high-voltage power system drive motor, such as an engine, the maximum vehicle speed V2 kM / h in limp mode is calculated based on the current actual driving capacity of the power source, wherein the limp mode is a driving mode in which a failure occurs in the high-voltage power system drive motor of the vehicle. When it is determined that the vehicle speed is greater than or equal to V2 kM / h, a deceleration prompt message is sent to the insulation fault prompt module to prompt the user to decelerate. When the vehicle speed is less than V2 kM / h, the vehicle is controlled to power off and enter a limp state.

[0063] In a specific embodiment of the present application, the device further includes: a first storage unit, which is used to store the historical insulation fault information in the insulation fault processing module of the target vehicle before obtaining the historical insulation fault information; and a reading unit, which is used to read the historical insulation fault information from the insulation fault processing module. In the device, the insulation fault processing module stores the historical insulation fault information, and the historical insulation fault information is obtained by the insulation fault processing module, which meets the requirements of different automobile manufacturers for insulation fault processing, has strong versatility in different vehicles, avoids the situation where the vehicle can be frequently powered on and off even if there is an insulation fault, and ensures the safety of users.

[0064] Specifically, the insulation fault processing module stores historical insulation fault information to meet the design requirements of different vehicles. The insulation fault detection module and the insulation fault processing module can be in the same controller or in different controllers, avoiding the situation where the vehicle can be frequently powered on and off even if there is an insulation fault.

[0065] In a specific embodiment of the present application, the device further includes: a second storage unit, which is used to store the real-time insulation fault information as historical insulation fault information after the current driving is completed when the real-time insulation fault information is received. In the device, the real-time insulation fault information is stored after the current driving is completed, ensuring that the historical insulation fault information can be received when the next driving starts, thereby ensuring the storage of the historical insulation fault information.

[0066] Specifically, after each round of driving, the real-time insulation fault information generated during each round of driving is stored to determine whether the real-time insulation fault information indicates that an insulation fault has occurred, which serves as a control condition for whether the vehicle can be powered on in the next round.

[0067] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the following will be described in conjunction with specific embodiments:

[0068] Example

[0069] In one embodiment provided in the present application, Figure 3 As shown, Figure 3 A flow chart for determining insulation faults according to an embodiment of the present application is shown. In historical vehicle driving, when an insulation fault occurs in the vehicle, the insulation fault detection module will store a corresponding insulation fault code. The insulation fault code is used to indicate the occurrence of an insulation fault. When the insulation fault detection module detects the fault code, it directly determines that the real-time insulation fault information generated by this driving indicates that an insulation fault has occurred. When the insulation fault detection module does not detect the fault code, it is determined whether the insulation fault detection start-up condition is met. For example, the insulation fault detection start-up condition is that the high-voltage system is powered on. When the insulation fault detection start-up condition is met, the insulation resistance values ​​of multiple insulation points of the vehicle's high-voltage system are collected multiple times, and The average value of the insulation resistance value is calculated, and based on the comparison result of the average value of the insulation resistance with the preset value, and the duration that satisfies the comparison result, it is determined whether the vehicle has an insulation fault, thereby avoiding misidentification of the fault. It should be noted that the insulation fault in the present application is a serious insulation fault. After an insulation fault occurs in the vehicle, the insulation fault code is stored and real-time insulation fault information indicating the insulation fault is sent out. When the insulation fault detection module detects other insulation faults or no insulation fault occurs, other insulation fault codes corresponding to other insulation faults are also stored, and real-time insulation fault information indicating other insulation faults is sent out. Other insulation faults include: general insulation faults and minor insulation faults.

[0070] As described above, when the average value R is less than the preset value R1 and the duration of the average value R being less than the preset value R1 is greater than or equal to t seconds, it is determined that an insulation fault in the present application occurs, that is, Figure 2In the case where the average value R is greater than or equal to the preset value R1 and less than the preset value R2, and the duration of the average value R being greater than or equal to the preset value R1 and less than the preset value R2 is greater than or equal to t seconds, it is determined that a general insulation fault has occurred; in the case where the average value R is greater than or equal to the preset value R2 and less than the preset value R3, and the duration of the average value R being greater than or equal to the preset value R2 and less than the preset value R3 is greater than or equal to t seconds, it is determined that a minor insulation fault has occurred; in the case where the average value is greater than or equal to R3, it is determined that no fault has occurred, that is, there is no fault.

[0071] In another embodiment provided in the present application, Figure 4 As shown, Figure 4 The process of a method for handling insulation failure of a vehicle according to an embodiment of the present application is shown. Figure 2 , determine whether to obtain historical insulation fault information, wherein the historical insulation fault information is a representation of the occurrence of an insulation fault. In the case of obtaining the historical insulation fault information, the vehicle is prohibited from being powered on, and whether no fault information is received is detected. In the case of receiving no fault information, a restart prompt is sent to the vehicle. After the vehicle is restarted, the insulation fault processing module clears the historical insulation fault information, and then detects whether to obtain real-time insulation fault information after restarting, wherein the real-time insulation fault information is a representation of the occurrence of an insulation fault. The power-on or power-off of the vehicle is determined based on whether the real-time insulation fault information is obtained. After the vehicle is in the powered-on state, it is detected in real time whether the real-time insulation fault information is received, wherein the real-time insulation fault information is received. The real-time insulation fault information is used to indicate the occurrence of an insulation fault. When the real-time insulation fault information is received, it is determined whether the vehicle has a hybrid drive. If the vehicle has a hybrid drive, the vehicle speed is compared with V2. If the vehicle speed is greater than V2, a deceleration prompt is sent. When the vehicle speed is less than or equal to V2, the vehicle is controlled to perform a power-off operation. When the vehicle does not have a hybrid drive, the vehicle speed is compared with V1. When the vehicle speed is greater than V1, a stop prompt is sent. When the vehicle speed is less than or equal to V1, the vehicle is controlled to perform a power-off operation. After the current driving is completed, the real-time insulation fault information is stored as historical insulation fault information.

[0072] In another embodiment provided in the present application, Figure 5 As shown, Figure 5A flowchart of an insulation fault prompt for a vehicle according to an embodiment of the present application is shown, detecting whether real-time insulation fault information is received, wherein the real-time insulation fault information is a representation of an insulation fault, determining whether the vehicle is in a powered-on state, and when the vehicle is not in a powered-on state, the user will receive a prompt message that an insulation fault has occurred in the vehicle, power-on is prohibited, and please contact the 4S shop immediately; when the vehicle is in a powered-on state, determining whether a deceleration prompt message is received, and when the deceleration prompt message is received, an insulation fault has occurred in the vehicle, and the user will receive a prompt message that please decelerate safely, and will enter a power-off limp state, and please contact the 4S shop; when no deceleration prompt message is received, determining whether a parking prompt message is received, and when the parking prompt message is received, an insulation fault has occurred in the vehicle, and at this time the user will receive a prompt message that the vehicle must decelerate safely, pull over, and the vehicle cannot be restarted, and please contact the 4S shop. If the vehicle does not receive real-time insulation fault information indicating an insulation fault, determine whether a restart prompt message is received. If the restart prompt message is received, the user will receive a prompt message that the insulation fault has been cleared and please restart the vehicle to verify whether it can be powered on. If the restart prompt message is not received, determine whether other insulation fault information is received. If the other insulation fault information is general insulation fault information, the user will receive a prompt message that a general insulation fault has occurred in the vehicle and please go to the 4S shop for repair and inspection immediately. If the other insulation fault information is minor insulation fault information, the user will receive a prompt message that a minor insulation fault has occurred in the vehicle and please go to the 4S shop for repair and inspection immediately.

[0073] In another embodiment provided in the present application, a controller corresponding to the insulation fault detection module fails and detection cannot be started, so that real-time insulation fault information cannot be generated. When the vehicle fails to detect the real-time insulation fault information, the vehicle is controlled not to be powered on. The real-time insulation fault information includes: insulation fault information, general insulation fault information, minor insulation fault information, and no fault.

[0074] The above-mentioned insulation fault processing device for a vehicle includes a processor and a memory. The above-mentioned acquisition unit 201 and the like are stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize corresponding functions.

[0075] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the kernel parameters can be adjusted to solve the problem of frequent power-on and power-off of vehicles in the prior art when insulation faults occur.

[0076] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0077] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the insulation fault processing method for a vehicle.

[0078] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the program executes the above-mentioned vehicle insulation fault processing method when running.

[0079] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0080] Step S101, obtaining historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurs in a target vehicle during historical driving;

[0081] Step S102, when the historical insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on;

[0082] Step S103, when real-time insulation fault information is received, whether the target vehicle is powered on is controlled according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on.

[0083] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0084] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0085] Step S101, obtaining historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurs in a target vehicle during historical driving;

[0086] Step S102, when the historical insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on;

[0087] Step S103, when real-time insulation fault information is received, whether the target vehicle is powered on is controlled according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on.

[0088] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0089] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0090] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0092] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0093] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0094] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0095] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0096] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0097] 1) In the vehicle insulation fault processing method of the present application, historical insulation fault information is obtained, wherein the historical insulation fault information is used to indicate whether an insulation fault occurred in the target vehicle during historical driving; when the historical insulation fault information indicates that an insulation fault occurred, the target vehicle is controlled not to be powered on; when real-time insulation fault information is received, whether the target vehicle is powered on is controlled according to the real-time insulation fault information, wherein when the real-time insulation fault information indicates that an insulation fault occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault occurred, the target vehicle is controlled to be powered on. In the method, historical insulation fault information is obtained, and when the historical insulation fault information indicates that an insulation fault has occurred, the vehicle is controlled not to be powered on, and then real-time insulation fault information is obtained, and whether the vehicle is powered on is controlled based on whether the real-time insulation fault information indicates that an insulation fault has occurred. When the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on, thereby reducing the risk of electric shock to users and improving the accuracy of insulation fault judgment. This solution controls the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault has occurred, and then obtains real-time insulation fault information, and controls whether the vehicle is powered on based on whether the real-time insulation fault information indicates that an insulation fault has occurred, thereby avoiding the problem in the prior art that the insulation fault processing controller completes initialization and then receives the fault information stored in the insulation fault detection controller through the vehicle communication bus, which takes a certain amount of time, causing the vehicle to frequently power on and then power off, thereby solving the problem in the prior art that the vehicle frequently powers on and off when an insulation fault occurs.

[0098] 2) In the insulation fault processing device of the vehicle of the present application, according to the acquisition unit, it is used to acquire historical insulation fault information, wherein the historical insulation fault information is used to indicate whether an insulation fault occurred in the target vehicle during the historical driving process; a first control unit is used to control the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault occurred; a second control unit is used to control whether the target vehicle is powered on according to the real-time insulation fault information when real-time insulation fault information is received, wherein when the real-time insulation fault information indicates that an insulation fault occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault occurred, the target vehicle is controlled to be powered on. In the device, historical insulation fault information is obtained, and when the historical insulation fault information indicates that an insulation fault has occurred, the vehicle is controlled not to be powered on, and then real-time insulation fault information is obtained. Whether the vehicle is powered on is controlled based on whether the real-time insulation fault information indicates that an insulation fault has occurred. When the real-time insulation fault information indicates that an insulation fault has occurred, the target vehicle is controlled not to be powered on, and when the real-time insulation fault information indicates that no insulation fault has occurred, the target vehicle is controlled to be powered on, thereby reducing the risk of electric shock to the user and improving the accuracy of insulation fault judgment. The device controls the target vehicle not to be powered on when the historical insulation fault information indicates that an insulation fault has occurred, and then obtains real-time insulation fault information, and controls whether the vehicle is powered on based on whether the real-time insulation fault information indicates that an insulation fault has occurred. This avoids the problem in the prior art that the insulation fault processing controller completes initialization and then receives the fault information stored in the insulation fault detection controller through the vehicle communication bus, which takes a certain amount of time, causing the vehicle to frequently power on and then off, thereby solving the problem in the prior art that the vehicle frequently powers on and off when an insulation fault occurs.

[0099] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for handling insulation failure of a vehicle, characterized in that: include: Acquiring historical insulation fault information, wherein the historical insulation fault information is used to characterize whether an insulation fault occurs in a target vehicle during historical driving, and the target vehicle includes a pure electric vehicle and a hybrid vehicle; When the historical insulation fault information indicates that the insulation fault has occurred, controlling the target vehicle not to be powered on; In the case of receiving real-time insulation fault information, controlling whether the target vehicle is powered on according to the real-time insulation fault information, wherein, if the real-time insulation fault information indicates that the insulation fault has occurred, the target vehicle is controlled not to be powered on, and if the real-time insulation fault information indicates that the insulation fault has not occurred, the target vehicle is controlled to be powered on; When the historical insulation fault information indicates that the insulation fault occurs, after controlling the target vehicle not to be powered on, the method includes: when the real-time insulation fault information indicates that there is no fault, sending first prompt information, the first prompt information is used to indicate and prompt the user to restart the target vehicle; In the case where the real-time insulation fault information indicates that the insulation fault has not occurred, after controlling the target vehicle to be powered on, the method includes: determining in real time whether the real-time insulation fault information indicating the occurrence of the insulation fault has been received; in the case where the real-time insulation fault information indicating the occurrence of the insulation fault has been received, determining the working power source of the target vehicle, wherein the working power source is one of the following: a high-voltage power system drive motor of the target vehicle, an oil-electric hybrid drive of the target vehicle; and controlling the movement of the target vehicle according to the working power source.

2. The method according to claim 1, characterized in that According to the working power source, controlling the target vehicle to move includes: When the working power source is the high-voltage power system driving motor, obtaining a first vehicle speed of the target vehicle; When the first vehicle speed is greater than or equal to a first predetermined vehicle speed, sending a second prompt message, wherein the second prompt message is used to prompt the user to stop the vehicle; When the first vehicle speed is less than the first predetermined vehicle speed, the target vehicle is controlled to perform a power-off operation.

3. The method according to claim 1, characterized in that According to the working power source, controlling the target vehicle to move, further comprising: When the working power source is the oil-electric hybrid drive, obtaining a second vehicle speed of the target vehicle; When the second vehicle speed is greater than or equal to a second predetermined vehicle speed, sending a third prompt message, wherein the third prompt message is used to prompt the user to slow down; When the second vehicle speed is less than the second predetermined vehicle speed, the target vehicle is controlled to perform a power-off operation.

4. The method according to claim 1, characterized in that: Before obtaining historical insulation fault information, the method further includes: storing the historical insulation fault information in an insulation fault processing module of the target vehicle; The historical insulation fault information is read from the insulation fault processing module.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: When the real-time insulation fault information is received, after the current driving is finished, the real-time insulation fault information is stored as the historical insulation fault information.

6. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the vehicle insulation fault processing method according to any one of claims 1 to 5.

7. A processor, characterized in that: The processor is used to run a program, wherein the program executes the insulation fault processing method for a vehicle according to any one of claims 1 to 5 when running.

8. A vehicle, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing the insulation fault processing method of a vehicle according to any one of claims 1 to 5.

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