The invention relates to the technical field of automobiles, in particular to an EPS (electric power steering)-based automobile tire burst safety protection method, which comprises the following steps that a signal processing unit acquires signals and calculates variable quantity, a tire burst working condition judging unit estimates transverse acceleration according to data of the signal processing unit, tire burst deflection quantity is obtained after integration, and the tire burst working condition is judged according to the judged automobile posture. And tire burst torque compensation is started, after compensation is started, basic compensation torque is calculated through steering wheel angle closed-loop PID control, and when the function relieving condition is met, tire burst protection function torque output is reduced or cut off. Compared with the prior art, by controlling the output torque of the steering motor, on the premise that the hardware cost is not increased, in the time period from tire burst to taking over of a driver, stable running of the vehicle is kept, and the driving stability and safety are improved.
本发明涉及汽车技术领域,具体地说是一种基于EPS的汽车爆胎安全保护方法,信号处理单元获取信号并计算变化量,爆胎工况判定单元根据信号处理单元的数据估算横向加速度,积分后得到爆胎偏摆量,根据判定的车辆姿态,开启爆胎扭矩补偿,补偿开启后,通过方向盘角度闭环PID控制计算基础补偿扭矩,满足功能解除条件时,减小或切断爆胎保护功能扭矩输出。本发明同现有技术相比,通过控制转向电机输出扭矩,在不增加硬件成本的前提下,在爆胎后至驾驶员接管前的时间段内,保持车辆稳定行驶,提高驾驶稳定性和安全性。
Automobile tire burst safety protection method based on EPS
一种基于EPS的汽车爆胎安全保护方法
2025-03-11
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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