Vehicle control method and system, vehicle controller and vehicle

Abstract

The invention relates to a vehicle control method and system, a vehicle controller and a vehicle. The method comprises the steps that a preliminary fault result and auxiliary information are acquired, the preliminary fault result is a fault result determined based on a high-voltage interlocking signal, and the auxiliary information at least comprises one of voltage information of a high-voltage module and cabin cover state information; and controlling the high-voltage contactor to be in an off state according to the initial fault result and the auxiliary information. The vehicle control method is more reliable and high in control efficiency.

Description

Technical Field

[0001] The present application relates to the field of vehicle high-voltage safety technology, and more specifically, to a vehicle control method, a vehicle control system, a vehicle controller and a vehicle. Background Art

[0002] With the rapid development of electric vehicle technology, the safety and reliability of high-voltage modules as the core part of electric vehicles have attracted more and more attention. As an important measure to ensure the safety of high-voltage modules, the high-voltage interlock fault detection system is currently mainly used to monitor whether the high-voltage interlock signal is abnormal, and disconnect the high-voltage contactor in time to cut off the output of high-voltage electricity after detecting an abnormality.

[0003] However, this method based on signal detection has some problems in practical applications. For example, due to the influence of electromagnetic interference, line aging and other factors during signal transmission, the interlock signal may be misjudged or missed. For another example, when a vehicle is driving on bad road conditions, the high-voltage interlock signal may be momentarily disconnected due to the large vibration of the vehicle. Therefore, relying solely on whether the above-mentioned high-voltage interlock signal is abnormal to control the high-voltage contactor to the disconnected state may cause misjudgment. This control method is unreliable and is not conducive to improving control efficiency. Summary of the invention

[0004] An object of the embodiments of the present application is to provide a vehicle control method, a vehicle control system, a vehicle controller and a vehicle. The vehicle control method of the embodiments of the present application is more reliable and has high control efficiency.

[0005] According to a first aspect of the present application, a vehicle control method is provided, comprising:

[0006] Acquire a preliminary fault result and auxiliary information, wherein the preliminary fault result is a fault result determined based on a high-voltage interlock signal, and the auxiliary information includes at least one of voltage information of a high-voltage module and hatch cover status information;

[0007] According to the preliminary fault result and the auxiliary information, the high-voltage contactor is controlled to be in an open state.

[0008] Optionally, the auxiliary information includes voltage information of a high-voltage module, and the controlling the high-voltage contactor to be in a disconnected state according to the preliminary fault result and the auxiliary information includes:

[0009] When the vehicle is in a driving state and / or in a high voltage power state, the high voltage contactor is controlled to be in a disconnected state according to the preliminary fault result and the voltage information.

[0010] Optionally, controlling the high-voltage contactor to be in an off state according to the preliminary fault result and the voltage information includes:

[0011] When the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold and the preliminary fault result indicates a high-voltage interlock fault, the high-voltage contactor is controlled to be in an open state.

[0012] Optionally, the auxiliary information includes voltage information of the high-voltage module and hatch cover status information, and the controlling the high-voltage contactor to be in a disconnected state according to the preliminary fault result and the auxiliary information includes:

[0013] When the vehicle is in a driving state and / or in a high voltage power state, the high voltage contactor is controlled to be in a disconnected state according to the preliminary fault result, the voltage information and the hatch state information.

[0014] Optionally, when the vehicle is in a driving state and / or in a high voltage power state, controlling the high voltage contactor to be in a disconnected state according to the preliminary fault result, the voltage information and the hatch cover state information includes:

[0015] When the vehicle is in the upper high voltage state, when the voltage information indicates that the voltage of the high voltage module is lower than a set threshold, the hatch state information indicates that the hatch is in an open state, and the preliminary fault result indicates a high voltage interlock fault, the high voltage contactor is controlled to be in an open state; and / or,

[0016] When the vehicle is in a driving state, if the preliminary fault result indicates a high-voltage interlock fault, and the bonnet status information indicates that the bonnet is in an open state or the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold, the high-voltage contactor is controlled to be in a disconnected state.

[0017] Optionally, the auxiliary information includes hatch cover status information, and controlling the high-voltage contactor to be in an open state according to the preliminary fault result and the auxiliary information includes:

[0018] When the vehicle is in a state where high voltage power is not supplied, the high voltage contactor is controlled to be in a disconnected state according to the preliminary fault result and the hatch status information.

[0019] Optionally, controlling the high-voltage contactor to be in an off state according to the preliminary fault result and the hatch cover state information includes:

[0020] When the hatch cover status information indicates that the hatch cover is in an open state and the preliminary fault result indicates a high-voltage interlock fault, the high-voltage contactor is controlled to be in an open state.

[0021] Optionally, before obtaining the preliminary fault result, the method further includes:

[0022] According to the vehicle running state, obtaining a set time for detecting the high-voltage interlock signal;

[0023] Within the set time, the high voltage interlock signal is detected to obtain the preliminary fault result.

[0024] Optionally, acquiring a set time for detecting the high-voltage interlock signal according to a vehicle running state includes:

[0025] When the vehicle is not powered on by high voltage, the set time is the first time;

[0026] When the vehicle is in a driving state and / or in a high voltage power state, the set time is a second time;

[0027] The first time is shorter than the second time.

[0028] Optionally, the high-voltage interlock signal is a first high-voltage interlock signal sent by a vehicle controller and a second high-voltage interlock signal returned via a battery module.

[0029] According to a second aspect of the present application, a vehicle controller is provided for executing a method as described in any one of the first aspects.

[0030] Optionally, the vehicle controller is an all-in-one controller having a control port, and the all-in-one controller is connected to the battery module through the control port.

[0031] Optionally, the all-in-one controller is further used to obtain the auxiliary information through the control port or the communication network.

[0032] According to a third aspect of the present application, a vehicle controller is provided, comprising a memory and a processor.

[0033] The memory is used to store computer instructions, and the processor is used to call the computer instructions from the memory to execute the method as described in any one of the first aspects.

[0034] According to a fourth aspect of the present application, a vehicle control system is provided, comprising: a battery module and a vehicle controller as described in any one of the second aspects, wherein the vehicle controller is connected to the battery module.

[0035] According to a fifth aspect of the present application, a vehicle is provided, comprising the system as described in the fifth aspect.

[0036] One beneficial effect of the embodiment of the present application is that by introducing at least one of the voltage information of the high-voltage module and the hatch status information, combined with the preliminary fault result determined based on the high-voltage interlock signal, jointly determining whether to control the high-voltage contactor to be cut off can reduce the possibility of misjudgment and increase reliability. At the same time, due to the reduction of misjudgment, the vehicle control efficiency can be improved to a certain extent.

[0037] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0039] Figure 1 It is a structural schematic diagram of a vehicle control system provided according to an embodiment of the present application.

[0040] Figure 2 It is a schematic flow chart of a vehicle control method provided according to an embodiment of the present application.

[0041] Figure 3 It is a structural schematic diagram of a vehicle control system provided according to another embodiment of the present application.

[0042] Figure 4 It is a schematic diagram of the structure of a controller provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0045] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0046] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0047] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0048] With the rapid development of electric vehicle technology, the safety and reliability of high-voltage modules as the core part of electric vehicles have attracted more and more attention. As an important measure to ensure the safety of high-voltage modules, the high-voltage interlock fault detection system is currently mainly used to monitor whether the high-voltage interlock signal is abnormal, and disconnect the high-voltage contactor in time to cut off the output of high-voltage electricity after detecting an abnormality.

[0049] However, this method based on signal detection has some problems in practical applications. For example, due to the influence of electromagnetic interference, line aging and other factors during signal transmission, the interlocking signal may be misjudged or missed. For another example, when a vehicle is driving on a bad road, the high-voltage interlocking signal may be disconnected due to the large vibration of the vehicle. Therefore, relying solely on whether the above-mentioned high-voltage interlocking signal is abnormal to control the on and off of the high-voltage contactor may cause misjudgment. This control method is unreliable and is not conducive to improving control efficiency.

[0050] Based on this, the embodiment of the present application provides a new vehicle control method, which introduces auxiliary information and combines the preliminary fault result determined based on the high-voltage interlock signal to jointly determine whether to control the high-voltage contactor to be cut off. The vehicle control method of the present application can be applied to a vehicle controller.

[0051] For ease of understanding, a vehicle controller for executing the vehicle control method of the present application and a vehicle control system in which the vehicle controller is located are briefly introduced. Figure 1 As shown, the vehicle control system 100 may include a battery module 110 and a vehicle controller 120. The vehicle controller 120 is connected to the battery module 110.

[0052] In this embodiment, the vehicle controller 120 and the battery module 110 can be connected via a cable. The cable is a high-voltage cable and may include a high-voltage line and connectors at both ends of the high-voltage line. The connector at one end of the high-voltage line may be connected to the vehicle controller 120, and the connector at the other end of the high-voltage line may be connected to the battery module 110. The vehicle controller 120 may have a control port, and the vehicle controller 120 may be connected to the battery module 110 via the control port. The vehicle controller 120 may have a communication function. The vehicle controller 120 may be connected to a hatch status information hard line to obtain hatch status information (such as front hatch status information).

[0053] The battery module 110 may be used to provide high voltage to a high voltage module controlled by the vehicle controller 120 .

[0054] The vehicle controller 120 can be used as a high-voltage interlock signal generation source to output a first high-voltage interlock signal to the battery module 110, and can also be used to receive a second high-voltage interlock signal returned by the first high-voltage interlock signal through the battery module 110. The vehicle controller 120 can also be used to determine a preliminary fault result based on the second high-voltage interlock signal, and can also be used to receive auxiliary information, and determine whether to control the high-voltage contactor to be in a disconnected state based on the preliminary fault result and the auxiliary information.

[0055] The vehicle controller may be, for example, an all-in-one controller. The specific composition of the all-in-one controller is not specifically limited herein. As an example, the all-in-one controller may include a main controller and a high-voltage module. The high-voltage module may include, for example, at least one of a motor controller, a motor, a high-voltage distribution box, an on-board charger, an air-conditioning driver, a heater, and an electric compressor.

[0056] In this embodiment, the auxiliary information can be obtained through the vehicle controller. As an example, the auxiliary information passed by the connector can be obtained through the control port. In this example, the auxiliary information is hardwired in the connector. As another example, the auxiliary information can also be obtained through a communication network (such as a CAN communication network). As another example, the auxiliary information can also be obtained through an auxiliary information hardwire directly connected to the vehicle controller.

[0057] In this embodiment, the auxiliary information may include at least one of voltage information of the high voltage module and hatch status information.

[0058] The vehicle control method of the embodiment of the present application is described below. Figure 2 As shown, the method may include steps S110 to S120.

[0059] Step S110, obtaining a preliminary fault result and auxiliary information, wherein the preliminary fault result is a fault result determined based on a high-voltage interlock signal, and the auxiliary information includes at least one of voltage information of a high-voltage module and hatch cover status information.

[0060] In this embodiment, the high-voltage interlock signal is a first high-voltage interlock signal sent by the vehicle controller and a second high-voltage interlock signal returned by the battery module. The high-voltage interlock signal can be a PWM signal, a high-level signal, or a low-level signal.

[0061] The step of determining the preliminary fault result based on the high-voltage interlock signal may include: when the high-voltage interlock signal is a PWM signal, when it is detected that the duty cycle or period of the high-voltage interlock signal exceeds a set threshold, determining the preliminary fault result to be a high-voltage interlock fault. When the high-voltage interlock signal is a high-level signal or a low-level signal, when it is detected that the high-voltage interlock signal is reversed, determining the preliminary fault result to be a high-voltage interlock fault.

[0062] The voltage information of the high-voltage module can indicate whether the voltage of the high-voltage module is lower than a set voltage threshold. The set threshold here can usually be determined based on the undervoltage protection voltage.

[0063] The voltage information of the high voltage module may be, for example, a voltage value. The hatch status information may indicate whether the vehicle hatch is open. The hatch status information may include, for example, an open state and a closed state.

[0064] Step S120, controlling the high-voltage contactor to be in an open state according to the preliminary fault result and the auxiliary information.

[0065] In this embodiment, when the auxiliary information includes voltage information of the high-voltage module, step S120 may include step S121: according to the preliminary fault result and the voltage information, controlling the high-voltage contactor to be in an open state. Optionally, step S121 may include: when the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold and the preliminary fault result indicates a high-voltage interlock fault, controlling the high-voltage contactor to be in an open state.

[0066] When the auxiliary information includes voltage information of the high-voltage module and hatch status information, step S120 may include step S122: controlling the high-voltage contactor to be in an open state according to the preliminary fault result, the voltage information and the hatch status information.

[0067] The embodiment of the present application introduces at least one of the voltage information of the high-voltage module and the hatch status information, and combines the preliminary fault result determined based on the high-voltage interlock signal to jointly determine whether to control the high-voltage contactor to be cut off, thereby reducing the possibility of misjudgment and increasing reliability. At the same time, due to the reduction of misjudgment, the vehicle control efficiency can be improved to a certain extent.

[0068] The vehicle controller can obtain the voltage information of the high-voltage module. The voltage information of the high-voltage module can reflect the connectivity between the high-voltage module and the battery module to a certain extent. When the voltage of the high-voltage module is lower than the set threshold, it means that the high-voltage module and the battery module are most likely disconnected.

[0069] The vehicle controller can only obtain the voltage information of the high-voltage module after the vehicle is powered on. At this time, the vehicle is in the high-voltage power state or driving state. The high-voltage power state here can be understood as the high-voltage main contactor is connected but the vehicle is stationary.

[0070] Based on this, in some embodiments, step S120 may include: when the vehicle is in a driving state and / or in a high-voltage power state, according to the preliminary fault result and voltage information, controlling the high-voltage contactor to be in a disconnected state. Optionally, when the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold and the preliminary fault result indicates a high-voltage interlock fault, controlling the high-voltage contactor to be in a disconnected state. Controlling the high-voltage contactor to be in a disconnected state means controlling the high-voltage contactor to switch from a connected state to a disconnected state.

[0071] In the embodiment of the present application, when the vehicle is in driving state and / or in high voltage power state, whether to control the high voltage contactor to be in the disconnected state is determined based on the preliminary fault result and voltage information, which can improve the accuracy of vehicle control in the vehicle driving state and / or in the high voltage power state, making vehicle control more reliable.

[0072] The vehicle controller can also obtain the hatch cover status information through the connector connected to its control port. That is, the hatch cover status information hard wire can be connected to the connector together with the high-voltage interlock wire, and connected to the vehicle controller through the control port of the vehicle controller. In this way, when the connector is loose, the hatch cover status information indicates that the hatch cover is in the open state.

[0073] Therefore, in some embodiments, the looseness or disconnection of the connector can be indirectly reflected by the hatch status information. In this embodiment, step S120 may include: when the vehicle is in a driving state and / or in a high voltage state, according to the preliminary fault result, the voltage information and the hatch status information, controlling the high voltage contactor to be in a disconnected state.

[0074] Optionally, when the vehicle is in the upper high voltage power state, when the preliminary fault result indicates a high voltage interlock fault, and the bonnet status information indicates that the bonnet is in an open state and / or the voltage information indicates that the voltage of the high voltage module is lower than a set threshold, the high voltage contactor is controlled to be in a disconnected state.

[0075] In order to further improve the control efficiency, in this embodiment, when the hatch cover status information indicates that the hatch cover is in a closed state, the high-voltage contactor is not controlled to be in an open state. That is, when the vehicle is in a high-voltage power state, when the voltage information indicates that the voltage of the high-voltage module is lower than the set threshold, the hatch cover status information indicates that the hatch cover is in an open state, and the preliminary fault result indicates a high-voltage interlock fault, the high-voltage contactor is controlled to be in an open state.

[0076] Optionally, when the vehicle is in driving state, when the preliminary fault result indicates a high-voltage interlock fault, and the bonnet status information indicates that the bonnet is open and / or the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold, the high-voltage contactor is controlled to be in the disconnected state.

[0077] In order to further improve the control efficiency, in this embodiment, when the preliminary fault result indicates a high-voltage interlock fault, and the hatch cover status information indicates that the hatch cover is in an open state or the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold, the high-voltage contactor is controlled to be in an open state. In other words, as long as one of the hatch cover status information and the voltage information indicates that the high-voltage interlock is abnormal, the high-voltage contactor can be controlled to be in an open state in combination with the preliminary fault result.

[0078] The order of detecting the hatch cover status information and / or voltage information and detecting the preliminary fault result is not limited. The preliminary fault result may be detected first, and when the preliminary fault result indicates a high-voltage interlock fault, the hatch cover status information and / or voltage information may be detected. The hatch cover status information and / or voltage information may also be detected first, and when the hatch cover status information and / or voltage information indicates a high-voltage interlock fault, the preliminary fault result may be detected. When the vehicle is in a state where high voltage electricity is not supplied, preferably, the hatch cover status information may be detected first, and when it is detected that the hatch cover is closed, the voltage information and preliminary fault result may not be detected. In this way, the control efficiency may be further improved.

[0079] The hatch cover status information can be used to identify whether the vehicle is in a maintenance state. In the case of a maintenance state and an abnormal high-voltage interlock signal, the high-voltage contactor can be controlled to be in a disconnected state to avoid electric shock to maintenance personnel. In this embodiment, step S120 may include: when the vehicle is in a state where high voltage power is not supplied, according to the preliminary fault result and the hatch cover status information, controlling the high-voltage contactor to be in a disconnected state.

[0080] The vehicle is in a state of not being powered on with high voltage, which is also a kind of vehicle operation state. The vehicle is in a state of not being powered on with high voltage, which can be understood as the vehicle has just started to be powered on but the high voltage contactor has not been connected, and the entire power-on process has not yet ended. At this time, the vehicle is in a stationary state. In this embodiment, the high voltage contactor is controlled to be in a disconnected state, that is, the high voltage contactor is controlled to remain in a disconnected state and not connected.

[0081] Optionally, based on the preliminary fault result and the hatch cover status information, the step of controlling the high-voltage contactor to be in the disconnected state may include: when the hatch cover status information indicates that the hatch cover is in the open state and the preliminary fault result indicates a high-voltage interlock fault, controlling the high-voltage contactor to be in the disconnected state.

[0082] In this embodiment, when the vehicle is in a state where high voltage is not supplied, and when the hatch state information indicates that the hatch is in a closed state, the high voltage contactor is not controlled to be in an open state. In this way, the control efficiency can be improved.

[0083] In this embodiment, the order of detecting the hatch cover status information and detecting the preliminary fault result is not specifically limited. Preferably, the hatch cover status information can be detected first, so that when it is detected that the hatch cover status information indicates that the hatch cover is closed, the preliminary fault result can be stopped.

[0084] In the embodiment of the present application, when the vehicle is just powered on but the high-voltage contactor is not yet connected, a high-voltage interlock fault detection can be performed first, and the high-voltage contactor can be connected after confirming that there is no fault. This can avoid the phenomenon that the high-voltage contactor needs to be disconnected as soon as it is connected. In addition, when the hatch status information indicates that the hatch is in an open state and the preliminary fault result indicates a high-voltage interlock fault, the high-voltage contactor is controlled to be in a disconnected state to avoid the risk of electric shock.

[0085] Generally, under different vehicle operating conditions, the requirements for detection accuracy and detection time are different. At the same time, the length of detection time also has a certain impact on the accuracy of the results. Therefore, different detection times can be set according to different scene requirements.

[0086] In some embodiments, before step S110, the vehicle control method of the present application may further include steps S100 to S101.

[0087] Step S100, obtaining the detection duration according to the vehicle running status.

[0088] In this embodiment, the detection duration is the duration of abnormality detection on the high-voltage interlock signal.

[0089] Considering that when the vehicle is not powered on, the user may power on the vehicle at any time. If the high-voltage interlock fails at this time, electric shock is very likely to occur during the power-on process. Therefore, in this scenario, the high-voltage interlock fault detection needs to be completed in a relatively short time.

[0090] After the vehicle is powered on, when a high-voltage interlock fault is detected, it is usually necessary to turn off the high-voltage power. In particular, when the vehicle is in motion and a high-voltage interlock fault is detected, it is usually necessary to control the vehicle to slow down and turn off the high-voltage power. If it is found to be a misjudgment after the high-voltage power is turned off, it will cause unnecessary trouble. Therefore, in this scenario, it is necessary to ensure the accuracy of the high-voltage interlock fault result.

[0091] Based on the above analysis, in this embodiment, step S100 may include: obtaining a first time when the vehicle is not powered on at high voltage; and obtaining a second time when the vehicle is in a driving state and / or powered on at high voltage, wherein the first time is less than the second time.

[0092] The first time and the second time can be set according to the cycle of the high voltage interlock signal and determined in combination with actual experience, and are not specifically limited here. As an example, the first time can be in milliseconds, such as 300ms. The second time can be in seconds, such as 10s.

[0093] Step S101, obtaining a preliminary fault result according to the detection result of each high-voltage interlock signal within the detection time.

[0094] In the embodiment of the present application, during this detection time, the detection results of abnormal detection of the high-voltage interlock signal are continuously obtained. If the detection result indicates that the number of times the high-voltage interlock signal is abnormal reaches a threshold, the preliminary fault result is determined to be a high-voltage interlock fault. In this way, the preliminary fault result is determined by multiple detection results, which can improve the accuracy of the detection result to a certain extent.

[0095] In this embodiment, when the vehicle is in a state where high voltage electricity is not supplied, the high-voltage interlock signal can be continuously detected for a short first time. If within the first time, the high-voltage interlock signal continues to be abnormal or the number of abnormalities reaches a threshold, the preliminary fault result is determined to be a high-voltage interlock fault. In this way, by quickly checking the high-voltage interlock signal, electric shock can be prevented. At the same time, it can also avoid the phenomenon that the high-voltage contactor needs to be disconnected as soon as it is connected. In addition, since the high-voltage interlock fault detection time is in the millisecond level, it has little impact on the normal power-on speed of the vehicle. In comparison, the vehicle is powered on faster when the detection time is in the second level.

[0096] When the vehicle is in the high voltage power state, the high voltage interlock signal can be continuously detected for a longer second time. If the high voltage interlock signal continues to be abnormal or the number of abnormalities reaches a threshold within the second time, the preliminary fault result is determined to be a high voltage interlock fault. In this way, by slowly detecting the high voltage interlock signal, the accuracy of the detection result can be increased.

[0097] In the embodiment of the present application, while the high-voltage contactor is controlled to be in the disconnected state, an instrument alarm prompt can be sent and a fault code can be recorded.

[0098] The present application also provides a vehicle controller, such as Figure 1 The vehicle controller 120 shown is used to execute a method as described in any one of the above method embodiments.

[0099] The vehicle controller may also be used to obtain auxiliary information through a control port or a communication network.

[0100] The embodiment of the present application introduces at least one of the voltage information of the high-voltage module and the hatch status information, and combines the preliminary fault result determined based on the high-voltage interlock signal to jointly determine whether to control the high-voltage contactor to be cut off, thereby reducing the possibility of misjudgment and increasing reliability. At the same time, due to the reduction of misjudgment, the vehicle control efficiency can be improved to a certain extent.

[0101] Since each high-voltage module in the prior art requires an independent high-voltage connector, and the high-voltage modules are arranged in different positions, resulting in a large number of high-voltage connectors, an excessively long interlocking harness, and an attenuation problem of the interlocking signal, optionally, as Figure 3 As shown, the vehicle controller 120 may be an all-in-one controller, which may include at least one of a main controller, a motor controller, a high-voltage distribution box, an on-board charger, an air-conditioning driver, and a motor.

[0102] In this embodiment, the all-in-one controller has a control port, and the all-in-one controller is connected to the battery module through the control port. The all-in-one controller can be connected to the battery module through only one cable. In other words, there is only one connector between the all-in-one controller and the battery module, and only one high-voltage line is required.

[0103] The vehicle control system of the embodiment of the present application has a shorter wiring harness and fewer connectors. Using the all-in-one controller to detect a high-voltage interlock fault only requires detecting the loosening or disconnection of one connector. The vehicle control method in the above method embodiment is implemented by the all-in-one controller, which is more concise and convenient, and has higher control efficiency.

[0104] The embodiments of the vehicle controller and the vehicle control method of the embodiments of the present application can refer to each other and will not be described in detail here.

[0105] The present application also provides a vehicle controller. Figure 4 As shown, the vehicle controller 200 includes a memory 210 and a processor 220, wherein the memory 210 is used to store computer instructions, and the processor 220 is used to call the computer instructions from the memory 210 to execute a method as described in any one of the above method embodiments.

[0106] The present application also provides a vehicle control system, such as Figure 1 As shown, the vehicle control system 100 includes: a battery module 110 and a vehicle controller 120 as described in any one of the above embodiments, and the vehicle controller 120 is connected to the battery module 110 .

[0107] The embodiment of the present application also provides a vehicle, comprising the system 100 as described in the above embodiment.

[0108] Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and equipment embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0109] The above describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0110] The present application may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present application.

[0111] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0112] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0113] The computer program instructions for performing the operation of the present application can be assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions can be executed completely on a user's computer, partially on a user's computer, executed as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using an Internet service provider to connect through the Internet). In some embodiments, by using the state information of a computer-readable program instruction to personalize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA) or a programmable logic array (PLA), the electronic circuit can execute a computer-readable program instruction, thereby realizing various aspects of the present application.

[0114] Various aspects of the present application are described herein 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 box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0115] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0116] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0117] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a part of a module, program segment or instruction, and the part of the module, program segment or instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of the boxes in the block diagram and / or flowchart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0118] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present application is defined by the appended claims.

Claims

1. A vehicle control method, characterized in that: include: Acquire a preliminary fault result and auxiliary information, wherein the preliminary fault result is a fault result determined based on a high-voltage interlock signal, and the auxiliary information includes at least one of voltage information of a high-voltage module and hatch cover status information; According to the preliminary fault result and the auxiliary information, the high-voltage contactor is controlled to be in an open state.

2. The method according to claim 1, characterized in that: The auxiliary information includes voltage information of the high-voltage module, and the controlling the high-voltage contactor to be in a disconnected state according to the preliminary fault result and the auxiliary information includes: When the vehicle is in a driving state and / or in a high voltage power state, the high voltage contactor is controlled to be in a disconnected state according to the preliminary fault result and the voltage information.

3. The method according to claim 2, characterized in that The step of controlling the high-voltage contactor to be in an off state according to the preliminary fault result and the voltage information includes: When the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold and the preliminary fault result indicates a high-voltage interlock fault, the high-voltage contactor is controlled to be in an open state.

4. The method according to claim 1, characterized in that: The auxiliary information includes voltage information of the high-voltage module and hatch cover status information, and the controlling the high-voltage contactor to be in a disconnected state according to the preliminary fault result and the auxiliary information includes: When the vehicle is in a driving state and / or in a high voltage power state, the high voltage contactor is controlled to be in a disconnected state according to the preliminary fault result, the voltage information and the hatch state information.

5. The method according to claim 4, characterized in that The method of controlling the high-voltage contactor to be in a disconnected state according to the preliminary fault result, the voltage information and the hatch cover state information when the vehicle is in a driving state and / or in a high-voltage power state includes: When the vehicle is in the upper high voltage state, when the voltage information indicates that the voltage of the high voltage module is lower than a set threshold, the hatch state information indicates that the hatch is in an open state, and the preliminary fault result indicates a high voltage interlock fault, the high voltage contactor is controlled to be in an open state; and / or, When the vehicle is in a driving state, if the preliminary fault result indicates a high-voltage interlock fault, and the bonnet status information indicates that the bonnet is in an open state or the voltage information indicates that the voltage of the high-voltage module is lower than a set threshold, the high-voltage contactor is controlled to be in a disconnected state.

6. The method according to claim 1, characterized in that The auxiliary information includes hatch cover status information, and controlling the high-voltage contactor to be in a disconnected state according to the preliminary fault result and the auxiliary information includes: When the vehicle is in a state where high voltage power is not supplied, the high voltage contactor is controlled to be in a disconnected state according to the preliminary fault result and the hatch status information.

7. The method according to claim 6, characterized in that The controlling the high-voltage contactor to be in an off state according to the preliminary fault result and the hatch cover state information comprises: When the hatch cover status information indicates that the hatch cover is in an open state and the preliminary fault result indicates a high-voltage interlock fault, the high-voltage contactor is controlled to be in an open state.

8. The method according to claim 1, characterized in that Before obtaining the preliminary fault result, the method further includes: Get the detection time according to the vehicle operation status; The preliminary fault result is obtained according to the detection result of each high-voltage interlock signal within the detection time.

9. The method according to claim 8, characterized in that The obtaining of the detection duration according to the vehicle running state includes: Get the first time when the vehicle is not powered on by high voltage; When the vehicle is in a driving state and / or in a high voltage power state, obtaining a second time; The first time is shorter than the second time.

10. The method according to claim 1, characterized in that The high-voltage interlock signal is a second high-voltage interlock signal that is returned by the battery module after the first high-voltage interlock signal is sent by the vehicle controller.

11. A vehicle controller, characterized in that: For carrying out the method according to any one of claims 1 to 10.

12. The vehicle controller according to claim 11, characterized in that: The vehicle controller is an all-in-one controller having a control port, and the all-in-one controller is connected to the battery module through the control port.

13. The vehicle controller according to claim 12, characterized in that: The all-in-one controller is further configured to obtain the auxiliary information through the control port or the communication network.

14. A vehicle controller, characterized in that: including memory and processor, The memory is used to store computer instructions, and the processor is used to call the computer instructions from the memory to execute the method according to any one of claims 1 to 10.

15. A vehicle control system, characterized in that: include: A battery module and a vehicle controller as claimed in any one of claims 11 to 14, wherein the vehicle controller is connected to the battery module.

16. A vehicle, characterized in that: Comprising the system of claim 15.

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