Vehicle and control method therefor, and apparatus and controller

Abstract

A vehicle and a control method therefor, and an apparatus and a controller. The vehicle comprises a safety belt, a detection assembly and a safety protection assembly. The method comprises: acquiring a buckle state of a safety belt and a detection signal of a detection assembly, wherein the buckle state is used for representing whether a passenger has fastened the safety belt, and the detection signal is used for representing whether there is a passenger on a vehicle seat (S110); fusing the buckle state and the detection signal to obtain a fusion result (S120); and on the basis of the fusion result, determining whether safety protection suppression needs to be performed on a safety protection assembly (S130).

Description

Vehicle and control method, device and controller thereof Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a vehicle and a control method, device, and controller thereof. Background Art

[0002] Functional safety levels are defined as the requirements that must be followed to assess the risks associated with failures and guide risk reduction to an acceptable level. These are generally referred to as ASILs (Automotive Safety Integration Levels). ISO26262 (Road Vehicle Functional Safety) uses the characteristics of automobiles to conduct hazard analysis and risk assessments during the product concept design phase to identify system hazards. The greater the system safety risk, the higher the corresponding safety requirement level, and the higher the ASIL level. QM (Qualification Management) indicates that no special functional safety processes are required, only normal quality management. ASIL levels are A, B, C, and D, with higher and higher ASIL levels indicating higher and more intolerable risks.

[0003] In the functional design of automotive electrical systems, the seatbelt buckle status is often used to determine whether the corresponding seat is occupied. The air conditioning system can automatically control the air conditioning based on the seatbelt buckle status, and the restraint system can use the seatbelt buckle status to determine whether the corresponding airbag should deploy in the event of a collision. Different functions have different functional safety level requirements for the seatbelt buckle status. For example, the air conditioning system only needs to meet the QM level, while rear side airbag deployment requires ASIL A. Because ASIL A-rated seatbelt buckles are more expensive than QM-rated buckles, the majority of vehicles currently on the market use QM-rated buckles. Replacing them with ASIL A-rated buckles would increase vehicle development costs.

[0004] Public content

[0005] The present disclosure aims to address, at least to some extent, one of the technical issues in the related art. To this end, the present disclosure is directed to a vehicle, a control method, a device, and a controller thereof. By integrating the seatbelt buckle status with the detection signal of a detection component to determine whether a safety protection component needs to be inhibited, the vehicle can achieve ASIL A for a QM-level seatbelt buckle and reduce vehicle development costs.

[0006] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present disclosure proposes a vehicle control method, wherein the vehicle includes a seat belt, a detection component and a safety protection component, and the method includes: obtaining the buckle status of the seat belt and the detection signal of the detection component, wherein the buckle status is used to indicate whether the passenger is wearing the seat belt, and the detection signal is used to indicate whether there is a passenger on the vehicle seat; fusing the buckle status and the detection signal to obtain a fusion result; and determining whether the safety protection component needs to be subjected to safety protection suppression based on the fusion result.

[0007] According to one embodiment of the present disclosure, the fusion result includes whether there is a passenger in the vehicle seat, no passenger in the vehicle seat and a seat belt buckle failure, and whether it is necessary to perform safety protection suppression on the safety protection component is determined based on the fusion result, including: when the fusion result is that there is a passenger in the vehicle seat or the seat belt buckle is failure, determining that there is no need to perform safety protection suppression on the safety protection component; when the fusion result is that there is no passenger in the vehicle seat, determining that it is necessary to perform safety protection suppression on the safety protection component.

[0008] According to one embodiment of the present disclosure, the lock buckle status and the detection signal are fused to obtain a fusion result, including: when it is determined based on the lock buckle status that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, determining that the fusion result is that there is a passenger on the vehicle seat; when it is determined based on the lock buckle status that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the fusion result is that there is no passenger on the vehicle seat; when it is determined based on the lock buckle status that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, or when it is determined based on the lock buckle status that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the fusion result is a seat belt buckle failure.

[0009] According to an embodiment of the present disclosure, the method further includes: determining a fault type of the seat belt buckle fault based on the buckle state and the detection signal.

[0010] According to one embodiment of the present disclosure, the method also includes determining the fault type of the seat belt buckle failure based on the buckle status and the detection signal, including: when it is determined based on the buckle status that the passenger is not wearing the seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, determining that the seat belt buckle failure is an open circuit failure or a short circuit failure to the power supply; when it is determined based on the buckle status that the passenger is wearing the seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the seat belt buckle failure is a short circuit failure or a short circuit failure to the ground.

[0011] According to one embodiment of the present disclosure, the safety belt includes a mechanical buckle.

[0012] According to one embodiment of the present disclosure, the detection component includes one or more of an occupancy sensor, a pressure sensor, and a camera.

[0013] According to one embodiment of the present disclosure, the safety protection component includes an airbag.

[0014] To achieve the above-mentioned purpose, the second embodiment of the present disclosure proposes a controller, including: a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the aforementioned vehicle control method is implemented.

[0015] To achieve the above-mentioned purpose, the third aspect embodiment of the present disclosure proposes a vehicle control device, including: the vehicle includes a seat belt, a detection component and a safety protection component, and the device includes: an acquisition module, used to obtain the lock status of the seat belt and the detection signal of the detection component, wherein the lock status is used to indicate whether the passenger is wearing the seat belt, and the detection signal is used to indicate whether there is a passenger on the vehicle seat; a fusion module, used to fuse the lock status and the detection signal to obtain a fusion result; and a control module, used to determine whether the safety protection component needs to be suppressed for safety protection based on the fusion result.

[0016] To achieve the above-mentioned objectives, a fourth embodiment of the present disclosure proposes a vehicle, comprising the aforementioned controller or the aforementioned vehicle control device.

[0017] According to the vehicle and its control method, device, and controller according to the embodiments of the present disclosure, by fusing the buckle status of the seat belt and the detection signal of the detection component to determine whether the safety protection component needs to be suppressed for safety protection, the QM-level seat belt buckle can be made to reach the ASIL A level and the overall vehicle development cost can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a diagram showing the working principle of a mechanical seat belt buckle.

[0019] Figure 2 is a diagram showing the working principle of a Hall-type seat belt buckle.

[0020] FIG3 is a flow chart of a vehicle control method according to an embodiment of the present disclosure.

[0021] FIG4 is a flow chart of a vehicle control method according to another embodiment of the present disclosure.

[0022] FIG5 is a schematic structural diagram of a vehicle control device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0024] It should be noted that QM-level seat belt buckles, such as mechanical seat belt buckles, do not have the function of self-diagnosis of faults and can only sense the status of the seat belt buckle, that is, whether the seat belt is fastened or not.

[0025] For example, Figure 1 illustrates the operating principle of a mechanical seatbelt buckle. Referring to Figure 1 , a controller (not shown) senses the seatbelt buckle state by measuring the voltage between points A and B when the first switch K1 is closed and open. For example, assuming the resistance of first resistor R1 is 8kΩ, the controller can calculate the resistance between points A and B by detecting the voltage between them. If the calculated resistance is greater than 8kΩ, it indicates that the first switch K1 is currently open and the seatbelt is not fastened. If the calculated resistance is less than or equal to 8kΩ, it indicates that the first switch K1 is currently closed and the seatbelt is fastened. However, this circuit structure does not have self-diagnosis capabilities.

[0026] ASIL A-level seat belt buckles, such as Hall-effect seat belt buckles, can not only sense the seat belt buckle status, i.e., whether the seat belt is fastened or not fastened, but also have the function of self-diagnosing faults, including open circuit faults, short circuit faults, short circuit faults to ground faults, and short circuit faults to power supply faults.

[0027] For example, Figure 2 illustrates the operating principle of a Hall-effect safety belt buckle. Referring to Figure 2, a controller (not shown) senses the safety belt buckle status by measuring the voltage change between points A and B when the second switch K2 is closed and open. This circuit structure also enables self-diagnosis of faults.

[0028] The car's restraint system (a device that restrains the occupant's movement during a collision to avoid collision with hard objects inside the car) can decide whether the corresponding airbag will be deployed in the event of a collision based on the state of the seat belt buckle.

[0029] When using a mechanical seatbelt buckle, if the buckle is functioning properly and a passenger is wearing a seatbelt, the restraint system controls airbag deployment based on the buckle status, meaning it does not suppress the airbags. When no passenger is present, the restraint system does not control airbag deployment based on the buckle status, meaning it suppresses the airbags. However, in the event of a buckle malfunction, because the mechanical buckle lacks self-diagnosis, the restraint system will control the airbags according to the normal buckle control logic, potentially preventing passenger protection in some situations. For example, if the buckle fails to open or short to the power supply, even if a passenger is wearing a seatbelt, the restraint system will not control airbag deployment based on the buckle status, meaning it suppresses the airbags. This results in a failure to protect passengers and poses a safety hazard, as shown in Table 1.

[0030] When using a Hall-type seatbelt buckle, since the Hall-type seatbelt buckle has a self-diagnosis fault function, when the seatbelt buckle fails, the restraint system will not suppress the airbag based on the fault signal, thereby providing good protection for passengers, as shown in Table 1.

[0031] Table 1

[0032] As shown in Table 1, Hall-effect seatbelt buckles can achieve ASIL A and provide excellent passenger protection. However, they are more expensive than mechanical buckles, leading to higher vehicle development costs. Furthermore, as shown in Table 1, Hall-effect seatbelt buckles fail to deploy the airbag even if there are no passengers present if the buckle experiences an open circuit or short circuit. This can lead to unnecessary airbag deployment and increased user costs.

[0033] Based on this, in the embodiments of the present disclosure, a QM-level seat belt buckle, such as a mechanical seat belt buckle, can be used on a car. At the same time, combined with the perception information of other sensors on the car, software judgment logic is used to determine whether safety protection suppression of safety protection components such as airbags is required. This can enable the QM-level seat belt buckle to achieve the effect of ASIL A level while reducing unnecessary triggering.

[0034] The vehicle control method according to the embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0035] FIG3 is a flow chart of a vehicle control method according to an embodiment of the present disclosure, wherein the vehicle includes a seat belt, a detection component, and a safety protection component. Referring to FIG3 , the vehicle control method may include:

[0036] S110, obtaining a buckle status of the seat belt and a detection signal of a detection component, wherein the buckle status is used to indicate whether a passenger is wearing a seat belt, and the detection signal is used to indicate whether there is a passenger on the vehicle seat.

[0037] Specifically, the seat belt includes a buckle, such as a QM-level buckle, which can be a mechanical buckle. The seat belt can output a buckle status, and based on the buckle status, it can be determined whether the passenger is wearing the seat belt.

[0038] The detection component can be other sensors already on the car, including but not limited to occupancy sensors, pressure sensors, cameras, etc. The occupancy sensor can be an electromagnetic wave occupancy sensor or an infrared occupancy sensor. The detection component detects whether there is a passenger on the vehicle seat and outputs a corresponding detection signal. It is understandable that when these sensors are installed on the car, there will be no additional hardware costs. From the perspective of vehicle design, material costs can be saved, and from the perspective of logistics and assembly, management costs can be saved. If these sensors are not installed on the car, lower-cost sensors such as pressure sensors can be selected. The cost is still lower than the higher part of the ASIL A-level seat belt buckle. In addition, the pressure sensor can also be used for other purposes, such as the automatic start of the display screen, so material costs can still be saved from the perspective of vehicle design.

[0039] S120: Fusing the lock state and the detection signal to obtain a fusion result.

[0040] S130: Determine whether security protection suppression needs to be performed on the security protection component based on the fusion result.

[0041] Specifically, safety protection components refer to components that can protect passengers in the event of a vehicle collision, including but not limited to airbags.

[0042] Based on the above analysis, it can be seen that if the determination of whether a safety protection component, such as an airbag, needs to be inhibited based solely on the buckle status, this may result in a failure to protect passengers in some situations. However, in the embodiments of the present disclosure, by integrating a detection signal that objectively reflects whether a passenger is in the vehicle seat, the need for safety protection component inhibition is comprehensively determined, making safety protection inhibition more reasonable. For example, if the detection signal determines that a passenger is in the vehicle seat, even if the buckle has an open circuit fault or a power supply short circuit, resulting in the buckle status determining that the seatbelt is not fastened, the safety protection component will not be inhibited, thereby ensuring passenger safety and achieving ASIL A performance. For another example, if the detection signal determines that no passenger is in the vehicle seat, even if the buckle has an open circuit fault or a power supply short circuit, the safety protection component will be inhibited. Unlike ASIL A seatbelt buckles, which only detect a buckle fault and therefore do not inhibit the safety protection component, this effectively reduces unnecessary triggering of the safety protection component when the seatbelt buckle is faulty and no passenger is in the vehicle seat.

[0043] In this way, QM-level seat belt buckles, such as mechanical seat belt buckles, can be used in cars. At the same time, combined with the perception information of other sensors on the car and through software judgment logic, ASIL A-level effects can be achieved, such as the effect of Hall-type seat belt buckles. From the perspective of vehicle design, material costs can be saved, and from the perspective of logistics and assembly, management costs can be saved. At the same time, unnecessary triggering of safety protection components can be reduced, reducing user usage costs.

[0044] In some embodiments, the lock state and the detection signal are fused to obtain a fusion result, including: when it is determined based on the lock state that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, determining that the fusion result is that there is a passenger on the vehicle seat; when it is determined based on the lock state that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the fusion result is that there is no passenger on the vehicle seat; when it is determined based on the lock state that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, or when it is determined based on the lock state that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the fusion result is a seat belt buckle failure.

[0045] That is to say, when it is determined that there is a passenger on the vehicle seat based on the lock status and the detection signal, it is considered that there is a passenger on the vehicle seat; when it is determined that there is no passenger on the vehicle seat based on the lock status and the detection signal, it is considered that there is no passenger on the vehicle seat; when it is determined that there is a passenger on the vehicle seat based on the lock status and one of the detection signals, it is considered that the seat belt buckle is faulty.

[0046] Specifically, when the seat belt buckle is normal, when it is determined based on the buckle status that the seat belt is fastened (i.e., it is believed that there is a passenger on the vehicle seat) and based on the detection signal that there is a passenger on the vehicle seat, it is believed that there is a passenger on the vehicle seat; when it is determined based on the buckle status that the seat belt is not fastened (i.e., it is believed that there is no passenger on the vehicle seat) and based on the detection signal that there is no passenger on the vehicle seat, it is believed that there is no passenger on the vehicle seat.

[0047] In the case of a seat belt buckle failure, for example, if the buckle fails to open or short to the power supply, it is determined that the seat belt is not fastened based on the buckle state (i.e., it is considered that there is no passenger on the vehicle seat), and if it is determined that there is a passenger on the vehicle seat based on the detection signal, the seat belt buckle is considered to be faulty; for another example, if the buckle fails to short or short to ground, it is determined that the seat belt is fastened based on the buckle state (i.e., it is considered that there is a passenger on the vehicle seat), and if it is determined that there is a passenger on the vehicle seat based on the detection signal, it is considered that there is a passenger on the vehicle seat; for another example, if the buckle fails to open or short to the power supply, it is determined that the seat belt is not fastened based on the buckle state (i.e., it is considered that there is no passenger on the vehicle seat), and if it is determined that there is no passenger on the vehicle seat based on the detection signal, it is considered that there is no passenger on the vehicle seat; for another example, if the buckle fails to short or short to ground, it is determined that the seat belt is fastened based on the buckle state (i.e., it is considered that there is a passenger on the vehicle seat), and if it is determined that there is a passenger on the vehicle seat based on the detection signal, it is considered that there is a passenger on the vehicle seat.

[0048] In this way, the lock state and the detection signal are integrated through software judgment logic, so as to determine whether the safety protection component needs to be suppressed based on the integration result.

[0049] In some embodiments, the fusion results include whether there is a passenger in the vehicle seat, no passenger in the vehicle seat, and a seat belt buckle failure, and whether it is necessary to perform safety protection suppression on the safety protection component is determined based on the fusion results, including: when the fusion result is that there is a passenger in the vehicle seat or the seat belt buckle is failure, determining that there is no need to perform safety protection suppression on the safety protection component; when the fusion result is that there is no passenger in the vehicle seat, determining that it is necessary to perform safety protection suppression on the safety protection component.

[0050] Specifically, based on the aforementioned analysis, the fusion results include vehicle seat occupancy, vehicle seat occupancy, and seatbelt buckle failure. Based on these fusion results, it can be determined whether safety protection components need to be suppressed. For example, if the fusion result indicates a vehicle seat occupant, passenger safety protection is necessary, and therefore there is no need to suppress the safety protection components, such as triggering the airbag in the event of a collision. If the fusion result indicates a seatbelt buckle failure, it is impossible to accurately determine whether the vehicle seat occupant is present. To ensure adequate passenger protection, the safety protection components will not be suppressed, such as triggering the airbag in the event of a collision. If the fusion result indicates an unoccupied vehicle seat, to reduce unnecessary triggering, the safety protection components will be suppressed, such as not triggering the airbag in the event of a collision.

[0051] Table 2 shows the suppression of security protection components in different situations.

[0052] Table 2

[0053] Referring to Table 2, assuming that there is a passenger in the vehicle seat under objective conditions and the seatbelt buckle is functioning properly, the buckle status will determine that the seatbelt is fastened, and the detection signal will determine that there is a passenger in the vehicle seat. Combining these two factors, we determine that there is a passenger in the vehicle seat. In this case, the safety protection component is not inhibited, ensuring the passenger's safety, which conforms to the objective conditions. Assuming that there is no passenger in the vehicle seat under objective conditions and the seatbelt buckle is functioning properly, the buckle status will determine that the seatbelt is not fastened, and the detection signal will determine that there is no passenger in the vehicle seat. Combining these two factors, we determine that there is no passenger in the vehicle seat. In this case, the safety protection component is inhibited, which conforms to the objective conditions.

[0054] Assuming that there is a passenger on the vehicle seat under objective conditions, in the event of a seat belt buckle failure, for example, an open circuit failure or a short circuit to the power supply failure of the buckle, it will be determined based on the buckle state that the seat belt is not fastened, and based on the detection signal, it will be determined that there is a passenger on the vehicle seat. The fusion of the two determines that the seat belt buckle fails. At this time, the safety protection component is not suppressed for safety protection, so as to protect the passenger, which is in line with the objective conditions. For another example, if the buckle fails short circuit or a short circuit to ground, it will be determined based on the buckle state that the seat belt is fastened, and based on the detection signal, it will be determined that there is a passenger on the vehicle seat. The fusion of the two determines that there is a passenger on the vehicle seat. At this time, the safety protection component is not suppressed for safety protection, so as to protect the passenger, which is in line with the objective conditions. Compared with the use of mechanical seat belt buckles, it reaches ASIL A level.

[0055] Assuming that there is no passenger on the vehicle seat under objective conditions, in the event of a seat belt buckle failure, for example, the buckle has an open circuit failure or a short circuit to the power supply failure, it will be determined based on the buckle state that the seat belt is not fastened, and based on the detection signal, it will be determined that there is no passenger on the vehicle seat. The fusion of the two determines that there is no passenger on the vehicle seat. At this time, the safety protection component is suppressed for safety protection, which is consistent with the objective conditions. Compared with the use of Hall-type seat belt buckles, unnecessary triggering is reduced; for example, if the buckle has a short circuit failure or a short circuit to the ground failure, it will be determined based on the buckle state that the seat belt is fastened, and based on the detection signal, it will be determined whether there is a passenger on the vehicle seat. The fusion of the two determines that the seat belt buckle fails. At this time, the safety protection component is not suppressed for safety protection, so as to provide safety protection for the passengers. Although this situation is inconsistent with objective conditions, comprehensive protection of the passengers can be achieved.

[0056] It should be noted that in the above example, as long as there is a passenger on the vehicle seat, the passenger is assumed to be wearing a seatbelt. However, the vehicle control method of the disclosed embodiment still applies even if there is a passenger on the vehicle seat but the passenger is not wearing a seatbelt. For example, if there is a passenger on the vehicle seat but the passenger is not wearing a seatbelt, the buckle status will determine that the seatbelt is not fastened, and the detection signal will determine that there is a passenger on the vehicle seat. The fusion of these two factors will determine that the seatbelt buckle is faulty. In this case, the safety protection component is not inhibited, and the passenger is protected, which is consistent with the objective state.

[0057] For example, referring to FIG. 4 , the vehicle control method may include:

[0058] S201, the controller is powered on.

[0059] S202, measure the resistance value.

[0060] S203, determine whether the resistance value is less than 8kΩ, if yes, execute S204; if not, execute S205.

[0061] Obtain the buckle status of the seat belt. If the resistance value measured by the controller is less than 8 kΩ, it indicates that the buckle status is closed, indicating that the passenger is wearing a seat belt, and then execute S204. Otherwise, it indicates that the buckle status is open, indicating that the passenger is not wearing a seat belt, and then execute S205.

[0062] S204: There are passengers on the vehicle seats.

[0063] The buckle state of the seat belt indicates that the passenger is wearing the seat belt, which means that there is a passenger on the vehicle seat.

[0064] S205: There are no passengers on the vehicle seats.

[0065] The buckled state of the seat belt indicates that the passenger is not wearing the seat belt, which means that there is no passenger in the vehicle seat.

[0066] S206, the detection component detects whether there is a passenger, if yes, execute S209; if not, execute S208.

[0067] If the detection component detects that there is a passenger on the vehicle seat, S209 is executed, indicating that the lock is normal and there is a passenger on the vehicle seat; if the detection component detects that there is no passenger on the vehicle seat, S208 is executed, indicating that the lock is faulty.

[0068] S207, the detection component detects whether there is a passenger, if yes, execute S208; if not, execute S210.

[0069] If the detection component detects that there is a passenger on the vehicle seat, S208 is executed, indicating that the lock is faulty; if the detection component detects that there is no passenger on the vehicle seat, S210 is executed, indicating that the lock is normal and there is no passenger on the vehicle seat.

[0070] S208, lock failure.

[0071] If the detection component detects that there is no passenger, but the seat belt buckle status indicates that there is a passenger on the vehicle seat, it can be determined that the seat belt buckle is faulty; if the detection component detects that there is a passenger, but the seat belt buckle status indicates that there is no passenger on the vehicle seat, it can be determined that the seat belt buckle is faulty.

[0072] S209, the lock is normal and there is a passenger on the vehicle seat.

[0073] If the detection component detects that there is a passenger and the seat belt buckle state indicates that there is a passenger on the vehicle seat, it can be determined that the buckle is normal and there is a passenger on the vehicle seat.

[0074] S210, the lock is normal and there is no passenger on the vehicle seat.

[0075] If the detection component detects that there is no passenger and the seat belt buckle state indicates that there is no passenger on the vehicle seat, it can be determined that the buckle is normal and there is no passenger on the vehicle seat.

[0076] S211, controlling the security protection component.

[0077] When the lock is normal and there is a passenger on the vehicle seat, there is no need to suppress the safety protection component; when the lock is normal and there is no passenger on the vehicle seat, the safety protection component needs to be suppressed; when the lock fails, there is no need to suppress the safety protection component.

[0078] It should be noted that according to safety requirements, seat belts must be fastened when there are passengers in the vehicle seat. If the vehicle does not fasten the seat belt, a reminder may be given, but the passenger may still not be fastened after the reminder. In this case, the seat belt buckle state indicates that there is no passenger in the vehicle seat, and the detection component detects that there is a passenger in the vehicle seat. In this case, there is no need to suppress the safety protection component.

[0079] S212: The controller is powered off.

[0080] In this way, the QM-level seat belt buckle can be equipped with the ability to sense buckle failure, thus avoiding safety hazards and unnecessary repairs caused by seat belt buckle failure to a certain extent.

[0081] In some embodiments, the vehicle control method may further include determining a fault type of the seat belt buckle fault based on the buckle state and the detection signal.

[0082] Specifically, since the detection signal objectively reflects whether there is a passenger on the vehicle seat, the lock state can be judged based on the detection signal, and then the fault type of the seat belt buckle can be determined.

[0083] In some embodiments, the fault type of a seat belt buckle failure is determined based on the buckle status and the detection signal, including: when it is determined based on the buckle status that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, determining that the seat belt buckle failure is an open circuit failure or a short circuit failure to power supply; when it is determined based on the buckle status that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the seat belt buckle failure is a short circuit failure or a short circuit failure to ground.

[0084] Specifically, referring to Table 2, when it is determined based on the detection signal that there is a passenger on the vehicle seat, if it is determined based on the lock status that the passenger is not wearing a seat belt, it means that based on the lock status, it is determined that there is no passenger on the vehicle seat, but in fact there is a passenger, which means that there is a fault in the current lock, such as an open circuit fault or a short circuit fault to the power supply.

[0085] When it is determined based on the detection signal that there is no passenger on the vehicle seat, if it is determined based on the lock status that the passenger is wearing a seat belt, it means that based on the lock status, it is determined that there is a passenger on the vehicle seat, but in fact there is no passenger, which means that there is a fault in the current lock, such as a short circuit fault or a short circuit to ground fault.

[0086] In this way, some fault types of the lock can be determined in combination with the detection signal to facilitate maintenance.

[0087] According to the vehicle control method of the embodiment of the present disclosure, by fusing the buckle status of the seat belt and the detection signal of the detection component to determine whether the safety protection component needs to be suppressed for safety protection, the QM-level seat belt buckle can be made to reach the ASIL A level, and the cost of vehicle development can be saved. The method is simple and easy to implement.

[0088] In some embodiments, a controller is also proposed, comprising: a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the aforementioned vehicle control method is implemented.

[0089] It should be pointed out that the above explanations of the embodiments and beneficial effects of the vehicle control method are also applicable to the controller of the embodiment of the present disclosure. To avoid redundancy, they will not be elaborated here.

[0090] In some embodiments, a vehicle control device is also provided.

[0091] A vehicle includes a seatbelt, a detection component, and a safety protection component. Referring to FIG5 , a vehicle control device 300 includes an acquisition module 301, a fusion module 302, and a control module 303. Acquisition module 301 is configured to acquire the seatbelt buckle status and a detection signal from the detection component. The buckle status indicates whether a passenger is wearing the seatbelt, and the detection signal indicates whether a passenger is occupying the vehicle seat. Fusion module 302 is configured to fuse the buckle status and the detection signal to produce a fusion result. Control module 303 is configured to determine, based on the fusion result, whether the safety protection component needs to be inhibited for safety protection.

[0092] In some embodiments, the fusion results include whether there is a passenger in the vehicle seat, no passenger in the vehicle seat, and a seat belt buckle failure. The control module 203 is specifically used to: when the fusion result is that there is a passenger in the vehicle seat or the seat belt buckle failure, determine that there is no need to perform safety protection suppression on the safety protection component; when the fusion result is that there is no passenger in the vehicle seat, determine that safety protection suppression on the safety protection component is required.

[0093] In some embodiments, the fusion module 302 is specifically used to: when it is determined based on the buckle status that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, determine that the fusion result is that there is a passenger on the vehicle seat; when it is determined based on the buckle status that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determine that the fusion result is that there is no passenger on the vehicle seat; when it is determined based on the buckle status that the passenger is not wearing a seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat, or when it is determined based on the buckle status that the passenger is wearing a seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat, determine that the fusion result is a seat belt buckle failure.

[0094] In some embodiments, the fusion module 302 is further configured to determine a fault type of the seat belt buckle fault based on the buckle status and the detection signal.

[0095] In some embodiments, the fusion module 302 is specifically used to: determine that the seat belt buckle fault is an open circuit fault or a short circuit fault to the power supply when it is determined based on the buckle status that the passenger is not wearing the seat belt and when it is determined based on the detection signal that there is a passenger on the vehicle seat; and determine that the seat belt buckle fault is a short circuit fault or a short circuit fault to the ground when it is determined based on the buckle status that the passenger is wearing the seat belt and when it is determined based on the detection signal that there is no passenger on the vehicle seat.

[0096] In some embodiments, the safety belt includes a mechanical buckle.

[0097] In some embodiments, the detection component includes one or more of an occupancy sensor, a pressure sensor, and a camera.

[0098] In some embodiments, the safety protection component includes an airbag.

[0099] It should be pointed out that the above explanations of the embodiments and beneficial effects of the vehicle control method are also applicable to the vehicle control device of the embodiment of the present disclosure. To avoid redundancy, they will not be elaborated here.

[0100] In some embodiments, a vehicle is also proposed, comprising the aforementioned controller or the aforementioned vehicle control device.

[0101] It should be pointed out that the above explanations of the embodiments and beneficial effects of the vehicle control method are also applicable to the vehicle of the embodiment of the present disclosure. To avoid redundancy, they will not be elaborated here.

[0102] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0103] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0104] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0105] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0106] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0107] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A vehicle control method, the vehicle including a seat belt, a detection component, and a safety protection component, the method comprises: Obtaining the buckle state of the seat belt and the detection signal of the detection component, wherein the buckle state is used to represent whether a passenger is wearing the seat belt, and the detection signal is used to represent whether there is a passenger on the vehicle seat; Fusing the buckle state and the detection signal to obtain a fusion result; Determining whether it is necessary to perform safety protection inhibition on the safety protection component based on the fusion result.

2. The method according to claim 1, wherein, the fusion result includes that there is a passenger on the vehicle seat, there is no passenger on the vehicle seat, and a seat belt buckle fault. Determining whether it is necessary to perform safety protection inhibition on the safety protection component based on the fusion result includes: When the fusion result is that there is a passenger on the vehicle seat or the seat belt buckle has a fault, determining that it is not necessary to perform safety protection inhibition on the safety protection component; When the fusion result is that there is no passenger on the vehicle seat, determining that it is necessary to perform safety protection inhibition on the safety protection component.

3. The method according to claim 1 or 2, wherein, fusing the buckle state and the detection signal to obtain a fusion result includes: When it is determined based on the buckle state that the passenger is wearing the seat belt and it is determined based on the detection signal that there is a passenger on the vehicle seat, determining that the fusion result is that there is a passenger on the vehicle seat; When it is determined based on the buckle state that the passenger is not wearing the seat belt and it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the fusion result is that there is no passenger on the vehicle seat; When it is determined based on the buckle state that the passenger is not wearing the seat belt and it is determined based on the detection signal that there is a passenger on the vehicle seat, or when it is determined based on the buckle state that the passenger is wearing the seat belt and it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the fusion result is a seat belt buckle fault.

4. The method according to claim 3, wherein, the method further comprises: Determining the fault type of the seat belt buckle fault based on the buckle state and the detection signal.

5. The method according to claim 4, wherein, determining the fault type of the seat belt buckle fault based on the buckle state and the detection signal includes: When it is determined based on the buckle state that the passenger is not wearing the seat belt and it is determined based on the detection signal that there is a passenger on the vehicle seat, determining that the seat belt buckle fault is an open circuit fault or a short circuit to power supply fault; When it is determined based on the buckle state that the passenger is wearing the seat belt and it is determined based on the detection signal that there is no passenger on the vehicle seat, determining that the seat belt buckle fault is a short circuit fault or a short circuit to ground fault.

6. The method according to claim 1, wherein, the seat belt includes a mechanical buckle.

7. The method according to claim 1, wherein, the detection component includes one or more of an occupancy sensor, a pressure sensor, and a camera.

8. The method according to claim 1, wherein, the safety protection component includes an airbag.

9. A controller, comprising: A memory, a processor, and a program stored on the memory and executable on the processor, wherein when the processor executes the program, the vehicle control method according to any one of claims 1-8 is implemented.

10. A vehicle control device, the vehicle including a seat belt, a detection component, and a safety protection component, the device comprising: An acquisition module for acquiring the buckle state of the seat belt and the detection signal of the detection component, wherein the buckle state is used to indicate whether a passenger is wearing the seat belt, and the detection signal is used to indicate whether there is a passenger on the vehicle seat; A fusion module for fusing the buckle state and the detection signal to obtain a fusion result; A control module for determining whether to perform safety protection inhibition on the safety protection component based on the fusion result.

11. A vehicle, including the controller according to claim 9 or the vehicle control device according to claim 10.

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