Electric vehicle high voltage interlock fault detection method and device, storage medium

Abstract

The present application discloses a method and device for detecting a high-voltage interlock fault in an electric vehicle, and a storage medium. The method comprises: detecting the installation status of at least one high-voltage component by at least one high-voltage component installation status detection circuit; detecting the state of an obstruction in the area where at least one high-voltage component is located by at least one obstruction status detection circuit in the area where the high-voltage component is located; combining the installation status of at least one high-voltage component and the state of an obstruction in the area where at least one high-voltage component is located, determining whether to trigger a high-voltage interlock fault by a high-voltage interlock fault determination controller. The present application solves the problem in the prior art that electric vehicles often trigger high-voltage interlock faults meaninglessly, resulting in a high frequency of triggering high-voltage interlock faults, which affects the normal use of the vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method and device for detecting a high-voltage interlock fault of an electric vehicle, and a storage medium. Background Art

[0002] High-voltage interlocking is an important part of the safety of electric vehicle high-voltage electric shock prevention. In the current related technologies, high-voltage interlocking is used to monitor the connection status of the high-voltage connector and the installation status of the detachable housing of the high-voltage component (the above two states are hereinafter referred to as the installation status of the high-voltage component) to prevent personnel from removing the high-voltage components when the high-voltage system of the vehicle is powered on, causing electric shock accidents. That is, the implementation method of high-voltage interlocking in the current related technologies is specifically as follows: an interlocking switch is built into the position of the high-voltage connector or the detachable housing of the high-voltage assembly, and the installation status of the high-voltage component is judged by monitoring the closed state of the interlocking switch through the controller (generally the vehicle controller VCU or the battery controller BMS, and can also be implemented by each high-voltage component controller). All interlocking switches can be connected in series as an electrical circuit, which is monitored by a single controller, or divided into several electrical circuits, which are monitored by multiple controllers. Once the vehicle determines that the installation status of any one or more high-voltage components is abnormal, it is considered that there is a possibility of electric shock through the above position. Therefore, according to the driving status of the vehicle, strategies such as instrument sound and light reminders, power battery power limitation, or forced high-voltage power-off will be adopted to prompt and protect users.

[0003] However, in actual application, the interlock fault triggering frequency is relatively high due to the influence of interlock structure design and processing defects, external circuit interference, vehicle vibration and mechanical shock, etc. Moreover, the current related technology only judges the installation status of high-voltage components, but the abnormal installation status of high-voltage components does not necessarily mean that people are at risk of electric shock. Since high-voltage components are mostly arranged in the front cabin, lower chassis and trunk, people must remove obstructions before they can contact high-voltage components. For example, they need to open the front cabin cover or trunk cover, remove the bottom guard plate, etc. Therefore, simply relying on the installation status of high-voltage components to judge the risk of electric shock to people and then taking protection strategies is over-protection, which affects the user experience and the normal driving of the vehicle.

[0004] In view of the problem in the prior art that electric vehicles often trigger high-voltage interlock faults meaninglessly, resulting in a high frequency of triggering high-voltage interlock faults and affecting the normal use of the vehicle, no effective solution has been proposed so far. Summary of the invention

[0005] The main purpose of the present application is to provide a method and device for detecting high-voltage interlock faults in electric vehicles, and a storage medium, so as to solve the problem in the prior art that electric vehicles often trigger high-voltage interlock faults meaninglessly, resulting in a high frequency of triggering high-voltage interlock faults, affecting the normal use of the vehicle.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for detecting a high-voltage interlock fault of an electric vehicle is provided. The method is applied in a high-voltage interlock fault detection system of an electric vehicle, and the high-voltage interlock fault detection system includes: at least one high-voltage component installation state detection circuit, a high-voltage interlock fault determination controller, and at least one shielding state detection circuit in the area where the high-voltage component is located, including: detecting the installation state of at least one high-voltage component through the at least one high-voltage component installation state detection circuit; detecting the state of the shielding in the area where the at least one high-voltage component is located through the shielding state detection circuit in the area where the at least one high-voltage component is located; combining the installation state of the at least one high-voltage component and the state of the shielding in the area where the at least one high-voltage component is located, determining whether to trigger a high-voltage interlock fault through the high-voltage interlock fault determination controller.

[0007] Further, in combination with the installation status of the at least one high-voltage component and the status of an obstruction in the area where the at least one high-voltage component is located, determining whether a high-voltage interlock fault is triggered by the high-voltage interlock fault judgment controller includes: when the installation status of all high-voltage components in the at least one high-voltage component is normal, determining that the high-voltage interlock fault is not triggered by the high-voltage interlock fault judgment controller, and continuing to detect the installation status of the at least one high-voltage component by the at least one high-voltage component installation status detection circuit; when the installation status of the target high-voltage component in the at least one high-voltage component is abnormal, detecting the status of an obstruction in the area where the target high-voltage component is located; when the obstruction in the area where the target high-voltage component is located is obstructed, determining that the high-voltage interlock fault is not triggered by the high-voltage interlock fault judgment controller; when the obstruction in the area where the target high-voltage component is located is not obstructed, determining that the high-voltage interlock fault is triggered by the high-voltage interlock fault judgment controller.

[0008] Furthermore, the high-voltage interlock fault detection system also includes a server. When the area where the target high-voltage component is located is blocked by an obstruction, after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is not triggered, the method also includes: obtaining abnormal information on the installation status of the target high-voltage component; recording the abnormal information and / or uploading the abnormal information to the server to prompt the target object that there is an abnormality in the installation status of the target high-voltage component.

[0009] Furthermore, when the target high-voltage component is located in an area where obstructions are not blocked, after the high-voltage interlock fault determination controller determines that the high-voltage interlock fault is triggered, the method further includes: acquiring target information, wherein the target information is used to indicate the presence of the high-voltage interlock fault in the electric vehicle; recording the target information and / or uploading the target information to the server; after recording the target information and / or uploading the target information to the server, processing the high-voltage interlock fault to protect the target object from electric shock.

[0010] Furthermore, after recording the abnormal information and / or uploading the abnormal information to the server, or after processing the high-voltage interlock fault, the method also includes: continuing to detect the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit.

[0011] Furthermore, the at least one high-voltage component installation status detection circuit includes at least one high-voltage interlock status detection controller and at least one interlock switch. Detecting the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit includes: detecting the status of the at least one interlock switch through the at least one high-voltage interlock status detection controller; and determining the installation status of the at least one high-voltage component based on the status of the at least one interlock switch.

[0012] Furthermore, based on the state of the at least one interlock switch, determining the installation state of the at least one high-voltage component includes: when a target interlock switch in the at least one interlock switch is in a disconnected state, determining that the installation state of the at least one high-voltage component is an abnormal state; and when all the interlock switches in the at least one interlock switch are in a closed state, determining that the installation state of the at least one high-voltage component is a normal state.

[0013] In order to achieve the above-mentioned purpose, according to another aspect of the present application, a detection device for a high-voltage interlock fault of an electric vehicle is provided. The device is applied in a high-voltage interlock fault detection system of an electric vehicle, and the high-voltage interlock fault detection system includes: at least one high-voltage component installation state detection circuit, a high-voltage interlock fault determination controller, and a shielding state detection circuit in the area where at least one high-voltage component is located, including: a first detection unit, which is used to detect the installation state of at least one high-voltage component through the at least one high-voltage component installation state detection circuit; a second detection unit, which is used to detect the state of the shielding in the area where at least one high-voltage component is located through the shielding state detection circuit in the area where at least one high-voltage component is located; a first determination unit, which is used to determine whether a high-voltage interlock fault is triggered through the high-voltage interlock fault determination controller in combination with the installation state of the at least one high-voltage component and the state of the shielding in the area where the at least one high-voltage component is located.

[0014] Further, the first determination unit includes: a first processing module, which is used to determine that the high-voltage interlock fault is not triggered through the high-voltage interlock fault judgment controller when the installation status of all high-voltage components in the at least one high-voltage component is normal, and continue to detect the installation status of the at least one high-voltage component through the at least one high-voltage component installation status detection circuit; a first detection module, which is used to detect the status of the obstruction in the area where the target high-voltage component is located when the installation status of the target high-voltage component in the at least one high-voltage component is abnormal; a first determination module, which is used to determine that the high-voltage interlock fault is not triggered through the high-voltage interlock fault judgment controller when the obstruction in the area where the target high-voltage component is located is obstructed; and a second determination module, which is used to determine that the high-voltage interlock fault is triggered through the high-voltage interlock fault judgment controller when the obstruction in the area where the target high-voltage component is located is not obstructed.

[0015] Furthermore, the high-voltage interlock fault detection system also includes a server, and the device also includes: a first acquisition unit, used to obtain abnormal information on the installation status of the target high-voltage component after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is not triggered when the area where the target high-voltage component is located is blocked by an obstruction; a first processing unit, used to record the abnormal information and / or upload the abnormal information to the server to prompt the target object that there is an abnormality in the installation status of the target high-voltage component.

[0016] Furthermore, the device also includes: a second acquisition unit, used to acquire target information after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is triggered, when the area where the target high-voltage component is located is not blocked by obstructions, wherein the target information is used to indicate the presence of the high-voltage interlock fault in the electric vehicle; a second processing unit, used to record the target information and / or upload the target information to the server; and a third processing unit, used to process the high-voltage interlock fault after recording the target information and / or uploading the target information to the server, so as to protect the target object from electric shock.

[0017] Furthermore, the device also includes: a third detection unit, which is used to continue to detect the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit after recording the abnormal information and / or uploading the abnormal information to the server, or after processing the high-voltage interlock fault.

[0018] Furthermore, the at least one high-voltage component installation status detection circuit includes at least one high-voltage interlock status detection controller and at least one interlock switch, and the first detection unit includes: a first detection subunit, used to detect the state of the at least one interlock switch through the at least one high-voltage interlock status detection controller; a first determination subunit, used to determine the installation state of the at least one high-voltage component based on the state of the at least one interlock switch.

[0019] Further, the first determination subunit includes: a third determination module, used to determine that the installation state of the at least one high-voltage component is an abnormal state when the target interlock switch in the at least one interlock switch is in a disconnected state; and a fourth determination module, used to determine that the installation state of the at least one high-voltage component is a normal state when all the interlock switches in the at least one interlock switch are in a closed state.

[0020] In order to achieve the above-mentioned purpose, according to another aspect of the present application, a computer-readable storage medium is provided, wherein the storage medium stores a program, wherein the program executes any one of the above-mentioned methods for detecting a high-voltage interlock fault of an electric vehicle.

[0021] In order to achieve the above-mentioned purpose, according to another aspect of the present application, a processor is provided, wherein the processor is used to run a program, wherein when the program is running, any one of the above-mentioned methods for detecting high-voltage interlock faults of electric vehicles is executed.

[0022] The present application is applied in the high-voltage interlock fault detection system of electric vehicles, and the high-voltage interlock fault detection system includes: at least one high-voltage component installation state detection circuit, a high-voltage interlock fault judgment controller, and at least one shielding state detection circuit in the area where the high-voltage component is located, and the following steps are adopted: the installation state of at least one high-voltage component is detected by at least one high-voltage component installation state detection circuit; the state of the shielding in the area where at least one high-voltage component is located is detected by the shielding state detection circuit in the area where at least one high-voltage component is located; combined with the installation state of at least one high-voltage component and the state of the shielding in the area where at least one high-voltage component is located, the high-voltage interlock fault judgment controller determines whether to trigger the high-voltage interlock fault, which solves the problem that the electric vehicle often triggers the high-voltage interlock fault meaninglessly in the prior art, resulting in a high frequency of triggering the high-voltage interlock fault, affecting the normal use of the vehicle. By detecting the installation state of the high-voltage component and the state of the shielding in the area where the high-voltage component is located, and determining whether to trigger the high-voltage interlock fault according to the installation state of the high-voltage component and the state of the shielding in the area where the high-voltage component is located, it is possible to avoid the electric vehicle from often triggering the high-voltage interlock fault meaninglessly, reduce the frequency of triggering the high-voltage interlock fault, and thus achieve the effect of avoiding affecting the normal use of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative 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:

[0024] Figure 1 is a schematic diagram of a detection system for a high-voltage interlock fault of an electric vehicle provided according to an embodiment of the present application;

[0025] Figure 2 It is a flow chart of a method for detecting a high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application;

[0026] Figure 3 is a flow chart of an optional electric vehicle high voltage interlock fault detection method provided according to an embodiment of the present application;

[0027] Figure 4 It is a schematic diagram of a detection device for high-voltage interlock fault of an electric vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, other existing embodiments obtained by ordinary technicians in the field without creative work should all fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] The present invention is described below in conjunction with preferred implementation steps. Figure 1 is a schematic diagram of a detection system for a high-voltage interlock fault of an electric vehicle provided according to an embodiment of the present application, such as Figure 1 As shown, the electric vehicle high-voltage interlock fault detection system includes: at least one high-voltage component installation status detection circuit, a high-voltage interlock fault determination controller, and at least one shielding object status detection circuit in the area where the high-voltage component is located. Figure 2 is a flow chart of a method for detecting a high voltage interlock fault of an electric vehicle provided in an embodiment of the present application, and the method is applied in Figure 1 In the electric vehicle high voltage interlock fault detection system shown in FIG. Figure 2 As shown, the method comprises the following steps:

[0032] Step S201: detecting the installation state of at least one high-voltage component by at least one high-voltage component installation state detection circuit.

[0033] For example, the above-mentioned high-voltage component installation status detection circuit can be Figure 1The front cabin area interlock switch state detection circuit, the lower chassis area interlock switch state detection circuit and the trunk area interlock switch state detection circuit. In addition, the high-voltage component installation state detection circuit includes but is not limited to the circuits in the three areas of the front cabin, the trunk and the lower chassis, and can be expanded to the areas where all high-voltage components of the vehicle can be arranged. Moreover, the installation state of the high-voltage components in the front cabin area can be detected by the front cabin area interlock switch state detection circuit, the installation state of the high-voltage components in the lower chassis area can be detected by the chassis area interlock switch state detection circuit, and the installation state of the high-voltage components in the trunk area can be detected by the trunk area interlock switch state detection circuit.

[0034] Step S202: detecting the state of an obstruction in the area where at least one high-voltage component is located by using an obstruction state detection circuit in the area where at least one high-voltage component is located.

[0035] For example, the obstruction state detection circuit in the area where the high voltage component is located can be Figure 1 The front hood closed state detection circuit, the bottom guard plate installation state detection circuit and the trunk lid closed state detection circuit in the vehicle. In addition, the shielding state detection circuit in the area where the high-voltage components are located includes but is not limited to the circuits in the three areas of the front hood, the trunk and the lower chassis, and can be expanded to the areas where all high-voltage components of the vehicle can be arranged. Moreover, the front hood closed state detection circuit can detect the switch state of the front hood, the bottom guard plate installation state detection circuit can detect the installation state of the bottom guard plate, and the trunk lid closed state detection circuit can detect the switch state of the trunk lid.

[0036] Step S203, combining the installation state of at least one high-voltage component and the state of the shielding object in the area where the at least one high-voltage component is located, determining whether a high-voltage interlock fault is triggered through a high-voltage interlock fault determination controller.

[0037] For example, the detected installation status of the high-voltage components in each area of ​​the vehicle and the status of the shielding objects in the area where the high-voltage components are located are sent to the high-voltage interlock fault determination controller (corresponding to Figure 1 The controller Z in the control circuit breaker determines whether the high-voltage interlock fault is triggered through the high-voltage interlock fault judgment controller (controller Z). In addition, the controller Z can receive the state signals of the obstructions in each area, as well as the state signals of the high-voltage interlock switches in each area reported by the controllers a, b, and c, and determine whether the interlock fault judgment conditions are met, and then record or upload the fault and abnormal state information.

[0038] Through the above-mentioned steps S201 to S203, by detecting the installation status of the high-voltage component and the status of the obstruction in the area where the high-voltage component is located, and determining whether to trigger the high-voltage interlock fault based on the installation status of the high-voltage component and the status of the obstruction in the area where the high-voltage component is located, it is possible to avoid the electric vehicle from frequently and meaninglessly triggering the high-voltage interlock fault, reduce the frequency of triggering the high-voltage interlock fault, and thereby achieve the effect of avoiding affecting the normal use of the vehicle.

[0039] Optionally, in the method for detecting a high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, in combination with the installation status of at least one high-voltage component and the status of an obstruction in the area where at least one high-voltage component is located, determining whether a high-voltage interlock fault is triggered through a high-voltage interlock fault judgment controller includes: when the installation status of all high-voltage components in at least one high-voltage component is normal, determining through the high-voltage interlock fault judgment controller that the high-voltage interlock fault is not triggered, and continuing to detect the installation status of at least one high-voltage component through at least one high-voltage component installation status detection circuit; when the installation status of a target high-voltage component in at least one high-voltage component is abnormal, detecting the status of an obstruction in the area where the target high-voltage component is located; when the obstruction in the area where the target high-voltage component is located is blocked, determining through the high-voltage interlock fault judgment controller that the high-voltage interlock fault is not triggered; when the obstruction in the area where the target high-voltage component is located is not blocked, determining through the high-voltage interlock fault judgment controller that a high-voltage interlock fault is triggered.

[0040] Figure 3 is a flow chart of an optional electric vehicle high voltage interlock fault detection method provided in an embodiment of the present application, such as Figure 3 As shown, the optional electric vehicle high voltage interlock fault detection method includes the following steps:

[0041] Step S1: judging the installation status of high-voltage components. If the installation status of all high-voltage components in the vehicle is normal, continue to detect the installation status of the high-voltage components. If the installation status of any high-voltage component in the vehicle is abnormal, jump to step S2.

[0042] Step S2: judging the state of the shielding object in the area where the high-voltage component with abnormal installation status is located. If the state of the shielding object in the area where the high-voltage component with abnormal installation status is located is normal, jump to step S3; if the state of the shielding object in the area where the high-voltage component with abnormal installation status is located is abnormal, jump to step S4;

[0043] Step S3: when the installation state of the high-voltage component is abnormal, but the state of the shielding in the area where the high-voltage component is located is normal, the high-voltage interlock fault is not triggered;

[0044] Step S4: determining that the high-voltage interlock fault triggering condition is met, that is, when the installation state of the high-voltage component is abnormal and the state of the shielding in the area where the high-voltage component is located is also abnormal, the high-voltage interlock fault is triggered.

[0045] In summary, by adding judgment signals such as the closed state of the front hood and trunk lid, and the installation state of the bottom guard plate (the above three states are the obstruction states), the high-voltage interlock fault judgment conditions can be optimized to avoid judging the interlock fault only by the installation state of the high-voltage components when the obstruction has not failed, thereby ensuring to the maximum extent that the high-voltage interlock fault will not be triggered when there is no risk of electric shock to personnel, which not only ensures personnel safety, but also avoids over-protection, and at the same time reduces user complaints caused by meaningless triggering of interlock faults, thereby improving the driving experience of personnel and ensuring the normal driving of the vehicle. In addition, by realizing the precise correspondence between the obstruction state (front hood / trunk lid / bottom guard plate) and the installation state of the high-voltage components in the obstructed area (front hood / trunk / lower chassis), and only when the obstruction state and the installation state of the high-voltage components in the obstruction area are abnormal at the same time, the interlock fault can be triggered, which further improves the accuracy of the interlock fault judgment and is also conducive to the location of the interlock fault.

[0046] Optionally, in the electric vehicle high-voltage interlock fault detection method provided in the embodiment of the present application, the high-voltage interlock fault detection system also includes a server. When the area where the target high-voltage component is located is blocked by an obstruction, after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is not triggered, the method also includes: obtaining abnormal information on the installation status of the target high-voltage component; recording the abnormal information and / or uploading the abnormal information to the server to prompt the target object that there is an abnormality in the installation status of the target high-voltage component.

[0047] For example, the server above can be Figure 1 In the background. Moreover, Figure 3 As shown in step S3, when the installation state of the high-voltage component is abnormal, but the state of the obstruction in the area is normal, that is, when the high-voltage interlocking fault is not triggered, the processing measure is to record or upload the abnormal installation state information of the high-voltage component.

[0048] To sum up, if only the installation status of the high-voltage component is abnormal, but the corresponding obstruction is normal, the abnormal status can be recorded and uploaded to the background to facilitate subsequent possible fault troubleshooting, that is, to remind users, 4S stores, and vehicle manufacturers of potential failure risks, and inspection and maintenance can be carried out at an appropriate time, but it will not affect the normal use of the vehicle.

[0049] Optionally, in the method for detecting a high-voltage interlock fault in an electric vehicle provided in an embodiment of the present application, when the target high-voltage component is located in an area where obstructions are not blocked, after the high-voltage interlock fault is determined to be triggered by the high-voltage interlock fault judgment controller, the method further includes: obtaining target information, wherein the target information is used to indicate the presence of a high-voltage interlock fault in the electric vehicle; recording the target information and / or uploading the target information to a server; after recording the target information and / or uploading the target information to the server, processing the high-voltage interlock fault to protect the target object from electric shock.

[0050] like Figure 3 As shown in step S4, when the installation state of the high-voltage component is abnormal and the state of the obstruction in the area is also abnormal, that is, after the high-voltage interlock fault is triggered, the processing measures are to record or upload the high-voltage interlock fault prompt information and perform fault processing according to the vehicle strategy.

[0051] Through the above solution, the risk of electric shock to personnel is eliminated, and at the same time, the fault area can be located without locating the specific fault point, which facilitates fast and accurate fault handling.

[0052] Optionally, in the method for detecting a high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, after recording abnormal information and / or uploading the abnormal information to a server, or after processing the high-voltage interlock fault, the method further includes: continuing to detect the installation status of at least one high-voltage component through at least one high-voltage component installation status detection circuit.

[0053] Since the high voltage interlock state is a real-time fault, continuous detection is required. Figure 3 As shown, when executing step S3, if the installation state of the high-voltage component is abnormal, but the state of the obstruction in the area is normal, the high-voltage interlock fault is not triggered, and after recording or uploading the abnormal information of the installation state of the high-voltage component, step S1 is continued to continue detection; and when executing step S4, if the installation state of the high-voltage component is abnormal, and the state of the obstruction in the area is also abnormal, the high-voltage interlock fault is triggered, and the high-voltage interlock fault prompt information is recorded or uploaded, and after performing fault processing according to the vehicle strategy, step S1 is continued to continue detection.

[0054] Through the above scheme, high-voltage interlock faults can be detected in real time, thereby ensuring the safety of personnel and the normal use of vehicles.

[0055] Optionally, in the method for detecting a high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, at least one high-voltage component installation status detection circuit includes at least one high-voltage interlock status detection controller and at least one interlock switch, and detecting the installation status of at least one high-voltage component through at least one high-voltage component installation status detection circuit includes: detecting the status of at least one interlock switch through at least one high-voltage interlock status detection controller; and determining the installation status of at least one high-voltage component based on the status of at least one interlock switch.

[0056] like Figure 1 As shown, the front cabin area interlock switch state detection circuit includes controller a and interlock switches S11, S12...S1N, the lower chassis area interlock switch state detection circuit includes controller b and interlock switches S21, S22...S2N, and the trunk area interlock switch state detection circuit includes controller c and interlock switches S31, S32...S3N. Among them, controller a is used to detect the state of all high-voltage interlock switches in the front cabin area, and then detect the installation state of high-voltage components in the area, and the controller function can be implemented by one controller or multiple controllers; controller b is used to detect the state of all high-voltage interlock switches in the lower chassis area, and then detect the installation state of high-voltage components in the area, and the controller function can be implemented by one controller or multiple controllers; controller c is used to detect the state of all high-voltage interlock switches in the trunk area, and then detect the installation state of high-voltage components in the area, and the controller function can be implemented by one controller or multiple controllers.

[0057] In summary, the installation status of high-voltage components in different areas (front engine compartment / trunk / lower chassis) is monitored by different controllers, so that the area where the high-voltage components are located can be located.

[0058] Optionally, in the method for detecting a high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, determining the installation status of at least one high-voltage component based on the status of at least one interlock switch includes: when a target interlock switch in at least one interlock switch is in an open state, determining that the installation status of at least one high-voltage component is an abnormal state; when all interlock switches in at least one interlock switch are in a closed state, determining that the installation status of at least one high-voltage component is a normal state.

[0059] For example, when any interlock switch in the front cabin area interlock switch state detection circuit is disconnected, the installation state of the high-voltage components in the front cabin area is determined to be abnormal; when all interlock switches in the front cabin area interlock switch state detection circuit are closed, the installation state of the high-voltage components in the front cabin area is determined to be normal. Moreover, other areas (such as the chassis area and the trunk area) also determine the installation state of the high-voltage components in this area according to the above judgment method, which will not be repeated here.

[0060] In summary, the installation status of high-voltage components in a certain area can be determined quickly and accurately according to the status of the interlock switches in the area.

[0061] In summary, the detection method of the high-voltage interlock fault of an electric vehicle provided by the embodiment of the present application is applied in the high-voltage interlock fault detection system of the electric vehicle, and the high-voltage interlock fault detection system includes: at least one high-voltage component installation state detection circuit, a high-voltage interlock fault judgment controller, and a shielding state detection circuit in the area where at least one high-voltage component is located. The installation state of at least one high-voltage component is detected by the at least one high-voltage component installation state detection circuit; the state of the shielding in the area where at least one high-voltage component is located is detected by the shielding state detection circuit in the area where at least one high-voltage component is located; combined with the installation state of at least one high-voltage component and the state of the shielding in the area where at least one high-voltage component is located, the high-voltage interlock fault judgment controller determines whether to trigger the high-voltage interlock fault, which solves the problem that the electric vehicle often triggers the high-voltage interlock fault meaninglessly in the prior art, resulting in a high frequency of triggering the high-voltage interlock fault, which affects the normal use of the vehicle. By detecting the installation state of the high-voltage component and the state of the shielding in the area where the high-voltage component is located, and determining whether to trigger the high-voltage interlock fault according to the installation state of the high-voltage component and the state of the shielding in the area where the high-voltage component is located, it is possible to avoid the electric vehicle from often triggering the high-voltage interlock fault meaninglessly, reduce the frequency of triggering the high-voltage interlock fault, and thus achieve the effect of avoiding affecting the normal use of the vehicle.

[0062] 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.

[0063] The embodiment of the present application also provides a detection device for a high-voltage interlock fault of an electric vehicle. It should be noted that the detection device for a high-voltage interlock fault of an electric vehicle in the embodiment of the present application can be used to execute the detection method for a high-voltage interlock fault of an electric vehicle provided in the embodiment of the present application. The detection device for a high-voltage interlock fault of an electric vehicle provided in the embodiment of the present application is introduced below.

[0064] Figure 4 Schematic diagram of a detection device for a high-voltage interlock fault of an electric vehicle according to an embodiment of the present application. The device is applied in a high-voltage interlock fault detection system of an electric vehicle, and the high-voltage interlock fault detection system includes: at least one high-voltage component installation status detection circuit, a high-voltage interlock fault determination controller, and at least one shielding state detection circuit in the area where the high-voltage component is located, such as Figure 4 As shown, the device includes: a first detection unit 401, a second detection unit 402 and a first determination unit 403.

[0065] Specifically, the first detection unit 401 is used to detect the installation state of at least one high-voltage component through at least one high-voltage component installation state detection circuit;

[0066] The second detection unit 402 is used to detect the state of the shielding object in the area where at least one high-voltage component is located through the shielding object state detection circuit in the area where at least one high-voltage component is located;

[0067] The first determination unit 403 is used to determine whether a high-voltage interlock fault is triggered through a high-voltage interlock fault determination controller based on the installation status of at least one high-voltage component and the status of an obstruction in an area where the at least one high-voltage component is located.

[0068] In summary, the electric vehicle high-voltage interlock fault detection device provided in the embodiment of the present application is applied in the high-voltage interlock fault detection system of the electric vehicle, and the high-voltage interlock fault detection system includes: at least one high-voltage component installation status detection circuit, a high-voltage interlock fault judgment controller, and at least one high-voltage component area where the shielding object status detection circuit is located. The first detection unit 401 detects the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit; the second detection unit 402 detects the state of the shielding object in the area where the at least one high-voltage component is located through the shielding object status detection circuit in the area where the at least one high-voltage component is located; the first determination unit 403 detects the state of the shielding object in the area where the at least one high-voltage component is located in combination with the installation status of at least one high-voltage component. The high-voltage interlock fault judgment controller determines whether to trigger the high-voltage interlock fault by detecting the installation status of the high-voltage component and the status of an obstruction in the area where the high-voltage component is located, thereby solving the problem in the prior art that electric vehicles often trigger high-voltage interlock faults meaninglessly, resulting in a high frequency of triggering high-voltage interlock faults and affecting the normal use of the vehicle. By detecting the installation status of the high-voltage component and the status of an obstruction in the area where the high-voltage component is located, and determining whether to trigger the high-voltage interlock fault based on the installation status of the high-voltage component and the status of the obstruction in the area where the high-voltage component is located, it is possible to avoid the electric vehicle from often triggering the high-voltage interlock fault meaninglessly, reduce the frequency of triggering the high-voltage interlock fault, and thereby achieve the effect of avoiding affecting the normal use of the vehicle.

[0069] Optionally, in the detection device for high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, the first determination unit includes: a first processing module, which is used to determine that a high-voltage interlock fault is not triggered through a high-voltage interlock fault judgment controller when the installation status of all high-voltage components in at least one high-voltage component is normal, and continue to detect the installation status of at least one high-voltage component through at least one high-voltage component installation status detection circuit; a first detection module, which is used to detect the status of an obstruction in the area where the target high-voltage component is located when the installation status of the target high-voltage component in at least one high-voltage component is abnormal; a first determination module, which is used to determine that a high-voltage interlock fault is not triggered through a high-voltage interlock fault judgment controller when the obstruction in the area where the target high-voltage component is located is obstructed; and a second determination module, which is used to determine that a high-voltage interlock fault is triggered through a high-voltage interlock fault judgment controller when the obstruction in the area where the target high-voltage component is located is not obstructed.

[0070] Optionally, in the electric vehicle high-voltage interlock fault detection device provided in the embodiment of the present application, the high-voltage interlock fault detection system also includes a server, and the device also includes: a first acquisition unit, used to obtain abnormal information on the installation status of the target high-voltage component after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is not triggered when the obstruction in the area where the target high-voltage component is located is blocked; a first processing unit, used to record the abnormal information and / or upload the abnormal information to the server to prompt the target object that there is an abnormality in the installation status of the target high-voltage component.

[0071] Optionally, in the detection device for high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, the device also includes: a second acquisition unit, for acquiring target information after the high-voltage interlock fault is determined to be triggered by the high-voltage interlock fault judgment controller when the target high-voltage component is located in an area where obstructions are not blocked, wherein the target information is used to indicate the presence of a high-voltage interlock fault in the electric vehicle; a second processing unit, for recording the target information and / or uploading the target information to a server; and a third processing unit, for processing the high-voltage interlock fault after recording the target information and / or uploading the target information to the server to protect the target object from electric shock.

[0072] Optionally, in the electric vehicle high-voltage interlock fault detection device provided in the embodiment of the present application, the device also includes: a third detection unit, which is used to continue to detect the installation status of at least one high-voltage component through at least one high-voltage component installation status detection circuit after recording abnormal information and / or uploading the abnormal information to the server, or after processing the high-voltage interlock fault.

[0073] Optionally, in the detection device for high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, at least one high-voltage component installation status detection circuit includes at least one high-voltage interlock status detection controller and at least one interlock switch, and the first detection unit includes: a first detection subunit, used to detect the state of at least one interlock switch through at least one high-voltage interlock status detection controller; a first determination subunit, used to determine the installation state of at least one high-voltage component based on the state of at least one interlock switch.

[0074] Optionally, in the detection device for high-voltage interlock fault of an electric vehicle provided in an embodiment of the present application, the first determination subunit includes: a third determination module, used to determine that the installation state of at least one high-voltage component is an abnormal state when the target interlock switch in at least one interlock switch is in a disconnected state; a fourth determination module, used to determine that the installation state of at least one high-voltage component is a normal state when all interlock switches in at least one interlock switch are in a closed state.

[0075] The electric vehicle high-voltage interlock fault detection device includes a processor and a memory. The first detection unit 401, the second detection unit 402 and the first determination unit 403 are all stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

[0076] The processor includes a kernel, which calls the corresponding program unit from the memory. One or more kernels can be set, and the vehicle can be used normally by adjusting the kernel parameters.

[0077] 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.

[0078] 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 method for detecting a high-voltage interlock fault of an electric vehicle is implemented.

[0079] An embodiment of the present invention provides a processor, which is used to run a program, wherein the method for detecting a high-voltage interlock fault of an electric vehicle is executed when the program is running.

[0080] An embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: detecting the installation status of at least one high-voltage component by means of the at least one high-voltage component installation status detection circuit; detecting the status of an obstruction in the area where the at least one high-voltage component is located by means of the obstruction status detection circuit in the area where the at least one high-voltage component is located; and determining whether a high-voltage interlock fault is triggered by means of the high-voltage interlock fault judgment controller in combination with the installation status of the at least one high-voltage component and the status of the obstruction in the area where the at least one high-voltage component is located.

[0081] When the processor executes the program, the following steps are also implemented: in combination with the installation status of the at least one high-voltage component and the status of the obstruction in the area where the at least one high-voltage component is located, determining whether to trigger a high-voltage interlock fault through the high-voltage interlock fault judgment controller includes: when the installation status of all high-voltage components in the at least one high-voltage component is normal, determining not to trigger the high-voltage interlock fault through the high-voltage interlock fault judgment controller, and continuing to detect the installation status of the at least one high-voltage component through the at least one high-voltage component installation status detection circuit; when the installation status of the target high-voltage component in the at least one high-voltage component is abnormal, detecting the status of the obstruction in the area where the target high-voltage component is located; when the obstruction in the area where the target high-voltage component is located is blocked, determining not to trigger the high-voltage interlock fault through the high-voltage interlock fault judgment controller; when the obstruction in the area where the target high-voltage component is located is not blocked, determining that the high-voltage interlock fault is triggered through the high-voltage interlock fault judgment controller.

[0082] When the processor executes the program, the following steps are also implemented: the high-voltage interlock fault detection system also includes a server. When the obstruction in the area where the target high-voltage component is located is blocked, after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is not triggered, the method also includes: obtaining abnormal information on the installation status of the target high-voltage component; recording the abnormal information and / or uploading the abnormal information to the server to prompt the target object that there is an abnormality in the installation status of the target high-voltage component.

[0083] When the processor executes the program, the following steps are also implemented: when the area where the target high-voltage component is located is not blocked by obstructions, after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is triggered, the method also includes: obtaining target information, wherein the target information is used to indicate that the high-voltage interlock fault exists in the electric vehicle; recording the target information and / or uploading the target information to the server; after recording the target information and / or uploading the target information to the server, processing the high-voltage interlock fault to protect the target object from electric shock.

[0084] When the processor executes the program, the following steps are also implemented: after recording the abnormal information and / or uploading the abnormal information to the server, or after processing the high-voltage interlock fault, the method also includes: continuing to detect the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit.

[0085] When the processor executes the program, the following steps are also implemented: the at least one high-voltage component installation status detection circuit includes at least one high-voltage interlock status detection controller and at least one interlock switch, and detecting the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit includes: detecting the status of the at least one interlock switch through the at least one high-voltage interlock status detection controller; and determining the installation status of the at least one high-voltage component based on the status of the at least one interlock switch.

[0086] When the processor executes the program, the following steps are also implemented: based on the state of the at least one interlock switch, determining the installation state of the at least one high-voltage component includes: when the target interlock switch in the at least one interlock switch is in an open state, determining that the installation state of the at least one high-voltage component is an abnormal state; when all the interlock switches in the at least one interlock switch are in a closed state, determining that the installation state of the at least one high-voltage component is a normal state.

[0087] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0088] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program that initializes the following method steps: detecting the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit; detecting the state of an obstruction in the area where the at least one high-voltage component is located through the obstruction state detection circuit in the area where the at least one high-voltage component is located; and determining whether a high-voltage interlock fault is triggered through the high-voltage interlock fault judgment controller in combination with the installation status of the at least one high-voltage component and the state of the obstruction in the area where the at least one high-voltage component is located.

[0089] When executed on a data processing device, it is also suitable for executing a program initialized with the following method steps: in combination with the installation status of the at least one high-voltage component and the status of the obstruction in the area where the at least one high-voltage component is located, determining whether to trigger a high-voltage interlock fault through the high-voltage interlock fault judgment controller includes: when the installation status of all high-voltage components in the at least one high-voltage component is normal, determining not to trigger the high-voltage interlock fault through the high-voltage interlock fault judgment controller, and continuing to detect the installation status of the at least one high-voltage component through the at least one high-voltage component installation status detection circuit; when the installation status of the target high-voltage component in the at least one high-voltage component is abnormal, detecting the status of the obstruction in the area where the target high-voltage component is located; when the obstruction in the area where the target high-voltage component is located is blocked, determining not to trigger the high-voltage interlock fault through the high-voltage interlock fault judgment controller; when the obstruction in the area where the target high-voltage component is located is not blocked, determining that the high-voltage interlock fault is triggered through the high-voltage interlock fault judgment controller.

[0090] When executed on a data processing device, it is also suitable for executing a program initialized with the following method steps: the high-voltage interlock fault detection system also includes a server, and when the obstruction in the area where the target high-voltage component is located is blocked, after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is not triggered, the method also includes: obtaining abnormal information of the installation status of the target high-voltage component; recording the abnormal information and / or uploading the abnormal information to the server to prompt the target object that there is an abnormality in the installation status of the target high-voltage component.

[0091] When executed on a data processing device, it is also suitable for executing a program that is initialized with the following method steps: when the obstruction in the area where the target high-voltage component is located is not blocked, after the high-voltage interlock fault judgment controller determines that the high-voltage interlock fault is triggered, the method also includes: obtaining target information, wherein the target information is used to indicate that the high-voltage interlock fault exists in the electric vehicle; recording the target information and / or uploading the target information to the server; after recording the target information and / or uploading the target information to the server, processing the high-voltage interlock fault to protect the target object from electric shock.

[0092] When executed on a data processing device, it is also suitable for executing an initialization program having the following method steps: after recording the abnormal information and / or uploading the abnormal information to the server, or after processing the high-voltage interlock fault, the method also includes: continuing to detect the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit.

[0093] When executed on a data processing device, it is also suitable for executing an initialized program having the following method steps: the at least one high-voltage component installation status detection circuit includes at least one high-voltage interlock status detection controller and at least one interlock switch, and detecting the installation status of at least one high-voltage component through the at least one high-voltage component installation status detection circuit includes: detecting the status of the at least one interlock switch through the at least one high-voltage interlock status detection controller; and determining the installation status of the at least one high-voltage component based on the status of the at least one interlock switch.

[0094] When executed on a data processing device, it is also suitable for executing a program initialized with the following method steps: determining the installation status of the at least one high-voltage component based on the status of the at least one interlock switch includes: when a target interlock switch in the at least one interlock switch is in an open state, determining that the installation status of the at least one high-voltage component is an abnormal state; when all interlock switches in the at least one interlock switch are in a closed state, determining that the installation status of the at least one high-voltage component is a normal state.

[0095] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in conjunction with software and hardware. Moreover, the application can 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 contain computer-usable program codes.

[0096] 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.

[0097] 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.

[0098] 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 The steps for the functions specified in one or more boxes.

[0099] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0100] 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.

[0101] 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 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.

[0102] 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.

[0103] 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.) in which a computer-usable program code is present.

[0104] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and variations may be present in the present application. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for detecting a high voltage interlock fault of an electric vehicle, characterized in that: The method is applied in a high-voltage interlock fault detection system of an electric vehicle, wherein the high-voltage interlock fault detection system comprises: at least one high-voltage component installation state detection circuit, a high-voltage interlock fault determination controller, and at least one shielding state detection circuit in an area where the high-voltage component is located, including: detecting the installation state of at least one high-voltage component by means of the at least one high-voltage component installation state detection circuit; Detecting the state of the shielding object in the area where the at least one high-voltage component is located by a shielding object state detection circuit in the area where the at least one high-voltage component is located; Determining whether to trigger a high-voltage interlock fault by the high-voltage interlock fault determination controller in combination with the installation state of the at least one high-voltage component and the state of an obstruction in the area where the at least one high-voltage component is located; Wherein, combining the installation state of the at least one high-voltage component and the state of the shielding in the area where the at least one high-voltage component is located, determining whether to trigger a high-voltage interlock fault by the high-voltage interlock fault determination controller includes: In the case that the installation states of all high-voltage components in the at least one high-voltage component are normal, determining not to trigger the high-voltage interlock fault through the high-voltage interlock fault determination controller, and continuing to detect the installation state of the at least one high-voltage component through the at least one high-voltage component installation state detection circuit; In the case where the installation state of a target high-voltage component among the at least one high-voltage component is abnormal, detecting a state of an obstruction in an area where the target high-voltage component is located; In the case where the target high-voltage component is located in an area where an obstruction is blocked, determining by the high-voltage interlock fault determination controller not to trigger the high-voltage interlock fault; In a case where the target high-voltage component is located in an area where there are no obstructions, the high-voltage interlock fault determination controller determines that the high-voltage interlock fault is triggered.

2. The method according to claim 1, characterized in that: The high-voltage interlock fault detection system also includes a server. When the obstruction in the area where the target high-voltage component is located is blocked, after the high-voltage interlock fault determination controller determines that the high-voltage interlock fault is not triggered, the method further includes: Acquiring abnormal information of the installation status of the target high-voltage component; The abnormal information is recorded and / or uploaded to the server to prompt the target object that there is an abnormality in the installation state of the target high-voltage component.

3. The method according to claim 2, characterized in that In the case where the target high-voltage component is located in an area where an obstruction is not blocked, after the high-voltage interlock fault determination controller determines that the high-voltage interlock fault is triggered, the method further includes: Acquiring target information, wherein the target information is used to indicate that the high-voltage interlock fault exists in the electric vehicle; Recording the target information and / or uploading the target information to the server; After the target information is recorded and / or uploaded to the server, the high-voltage interlock fault is processed to protect the target object from electric shock.

4. The method according to claim 3, characterized in that After recording the abnormal information and / or uploading the abnormal information to the server, or after processing the high-voltage interlock fault, the method further includes: The installation state of at least one high-voltage component is continuously detected by the at least one high-voltage component installation state detection circuit.

5. The method according to claim 1, characterized in that The at least one high-voltage component installation state detection circuit includes at least one high-voltage interlock state detection controller and at least one interlock switch, and detecting the installation state of at least one high-voltage component through the at least one high-voltage component installation state detection circuit includes: Detecting the state of the at least one interlock switch by the at least one high voltage interlock state detection controller; The installation state of the at least one high-voltage component is determined according to the state of the at least one interlock switch.

6. The method according to claim 5, characterized in that Determining the installation state of the at least one high-voltage component according to the state of the at least one interlock switch includes: determining that the installation state of the at least one high-voltage component is an abnormal state when a target interlock switch among the at least one interlock switch is in an open state; In a case where all of the at least one interlock switch are in a closed state, it is determined that the installation state of the at least one high-voltage component is a normal state.

7. A detection device for high-voltage interlock fault of electric vehicles, characterized in that: The device is used in a high-voltage interlock fault detection system of an electric vehicle, wherein the high-voltage interlock fault detection system comprises: at least one high-voltage component installation state detection circuit, a high-voltage interlock fault determination controller, and at least one shielding state detection circuit in an area where the high-voltage component is located, including: a first detection unit, configured to detect an installation state of at least one high-voltage component through the at least one high-voltage component installation state detection circuit; A second detection unit, configured to detect a state of an obstruction in the area where the at least one high-voltage component is located through an obstruction state detection circuit in the area where the at least one high-voltage component is located; A first determination unit, configured to determine whether a high-voltage interlock fault is triggered by the high-voltage interlock fault determination controller in combination with an installation state of the at least one high-voltage component and a state of an obstruction in an area where the at least one high-voltage component is located; Among them, the first determination unit includes: a first processing module, which is used to determine that the high-voltage interlock fault is not triggered through the high-voltage interlock fault judgment controller when the installation status of all high-voltage components in the at least one high-voltage component is normal, and continue to detect the installation status of the at least one high-voltage component through the at least one high-voltage component installation status detection circuit; a first detection module, which is used to detect the state of the obstruction in the area where the target high-voltage component is located when the installation status of the target high-voltage component in the at least one high-voltage component is abnormal; a first determination module, which is used to determine that the high-voltage interlock fault is not triggered through the high-voltage interlock fault judgment controller when the obstruction in the area where the target high-voltage component is located is obstructed; a second determination module, which is used to determine that the high-voltage interlock fault is triggered through the high-voltage interlock fault judgment controller when the obstruction in the area where the target high-voltage component is located is not obstructed.

8. A computer-readable storage medium, characterized in that: The storage medium stores a program, wherein the program executes the electric vehicle high-voltage interlock fault detection method according to any one of claims 1 to 6.

9. A processor, characterized in that: The processor is used to run a program, wherein the program, when running, executes the method for detecting a high-voltage interlock fault of an electric vehicle as described in any one of claims 1 to 6.

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