汽车线控转向系统中转角传感器的研究

Steering Wheel Angle Sensor in Vehicle Steer-by-Wire(SBW) System

使用基于Triaxis三轴霍尔原理的角度传感器芯片MLX90316和单片机MC9S08DZ16,通过对软硬件进行设计,研制出成本低廉、测量精确、抗干扰性能好,具有一定智能的非接触式方向盘转角传感器。该传感器可以为线控转向系统的电控单元提供精确的方向盘绝对位置角度值,并且可以通过软件计算出方向盘转动角速度、角加速度值。

Using the magnetic sensor chip MLX9031 6 and the MC9S08DZ1 6 based on the Triaxis Hall Technology,a non-contact and intelligent steering angle sensor is built,which has advantages of cheap costs,great precision and anti-jamming performance.This steering angle sensor can provide an accurate angle value of steering wheel absolute position for SBW（steer-by-wire）.By software,the di-rection,speed and acceleration of turning the steering wheel can be computed.