The invention relates to a vehicle communication fault judgment method and a vehicle driving safety control method. According to the vehicle communication fault judgment method, if communication between a motor controller and a vehicle control unit is lost, the current communication failure cumulative duration is increased based on the first duration, and if communication between the motor controller and the vehicle control unit is not lost, the vehicle communication fault is judged under the constraint condition that the reduced current communication failure cumulative duration is larger than or equal to the cumulative duration initial value. And reducing the current communication failure accumulated time length based on the second time length until the current communication failure accumulated time length reaches a preset time length, and judging that the motor controller and the vehicle control unit have a communication fault. According to the judgment method, the situation that the communication between the motor controller and the whole vehicle controller is discontinuous is not judged as the situation that no communication fault occurs between the motor controller and the whole vehicle controller, and the judgment precision of the communication fault between the motor controller and the whole vehicle controller is improved.
本申请涉及一种车辆通讯故障判断方法和车辆行车安全控制方法。所述车辆通讯故障判断方法,若电机控制器与整车控制器通讯丢失,则基于第一时长增加当前通讯失效累计时长,若电机控制器与整车控制器通讯未丢失,则在减小后的当前通讯失效累计时长大于或等于累计时长初始值的约束条件下,基于第二时长减小当前通讯失效累计时长,直至当前通讯失效累计时长达到预设时长,判定电机控制器与整车控制器发生通讯故障。该判断方法不会将电机控制器与整车控制器的通讯处于断断续续的情况判定为电机控制器与整车控制器非发生通讯故障,提高了电机控制器与整车控制器通讯故障的判断精度。
Vehicle communication fault judgment method and vehicle driving safety control method
车辆通讯故障判断方法和车辆行车安全控制方法
2022-07-22
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Drawing dragon judgment control method for automatic driving vehicle
European Patent Office | 2023
|European Patent Office | 2023
|Amphibious vehicle driving mode automatic judgment and control method
European Patent Office | 2022
|Drunk driving judgment method based on vehicle circuit control
European Patent Office | 2021
|