The invention provides a method and a system for measuring a steering angle deviation value of a vehicle. The method comprises the following steps. First, a rotation step is performed in which a steering wheel is continuously rotated left and right between a left position with respect to a center and a right position with respect to the center while the vehicle is traveling. And obtaining the time series change of the steering angle of the vehicle and the time series change of the turning radius of the vehicle in the rotating step so as to calculate the response delay of the turning radius. Then, a correlation expression of the turning radius is calculated, and the correlation expression corrects response delays corresponding to the turning angles at the multiple time points; according to the self-correlation expression, the steering angle when the turning radius is 0 is defined as the steering angle deviation value. According to the method and the system for measuring the deviation value of the steering angle of the vehicle, the steering angle when the vehicle goes straight can be calculated under the conditions of low speed, short time and no need of setting according to the type of the vehicle.
本发明提供一种测量车辆的转向角偏差量的方法及系统。前述方法包括以下步骤。首先,执行旋转步骤,其中旋转步骤为:当车辆行驶时,使转向盘持续地在相对于中心的左侧位置与相对于中心的右侧位置之间左右旋转。取得旋转步骤中车辆的转向角的时间序列变化以及车辆的转弯半径的时间序列变化,以计算转弯半径的响应延时。之后,计算转弯半径的关联表达式,其中关联表达式校正在多个时间点转向角所对应的响应延时。自关联表达式,定义转弯半径为0时的转向角为转向角偏差量。本发明所提出的测量车辆的转向角偏差量的方法及系统,可在低速度、短时间、无需针对车辆类型来设定的情况下,计算出车辆直行时的转向角。
Method and system for measuring steering angle deviation value of vehicle
测量车辆的转向角偏差量的方法及系统
29.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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