The invention discloses a vehicle steering fault judgment method, which comprises the following steps of: obtaining a first theoretical relationship between a steering wheel rotation angle and a left side steering wheel theoretical steering angle according to a three-dimensional simulation model, and obtaining a left side steering wheel theoretical steering angle based on four-wheel positioning; obtaining a first standard relation between the steering wheel rotation angle and the standard steering angle of the left steering wheel; based on the first theoretical relation and the first standard relation, the difference value between the left side steering wheel theoretical steering angle and the left side steering wheel standard steering angle under the steering wheel rotation angle is obtained, and an error band A is obtained; acquiring a steering wheel rotation angle and an actual steering angle of a left steering wheel when the vehicle moves; based on the first theoretical relationship, obtaining a left-side steering wheel theoretical steering angle and calculating a first deviation between the left-side steering wheel actual steering angle and the left-side steering wheel theoretical steering angle; judging whether the first deviation is in an error band A or not; if yes, mechanical transmission is judged to be normal, and otherwise, a fault occurs.
本发明公开了一种车辆转向故障判断方法,包括以下步骤:根据三维仿真模型,得到方向盘转动角度与左侧转向车轮理论转向角度之间的第一理论关系,基于四轮定位,得到方向盘转动角度与左侧转向车轮标准转向角度之间的第一标准关系;基于第一理论关系与第一标准关系,得到方向盘转动角度下所述左侧转向车轮理论转向角度与左侧转向车轮标准转向角度之间的差值以得到误差带A;获取车辆运动下的方向盘转动角度及左侧转向车轮实际转向角度;基于第一理论关系,得到左侧转向车轮理论转向角度并计算左侧转向车轮实际转向角度与左侧转向车轮理论转向角度的第一偏差;判断该第一偏差是否在误差带A内;如果是,则判断机械传动正常,否则出现故障。
Vehicle steering fault judgment method and vehicle
一种车辆转向故障判断方法及车辆
12.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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