方向盘转向角传感器的数据采集系统设计

摘要

通过对方向盘转向角传感器的分析,设计了转向角传感器的数据采集系统,并且设计了相应的外围辅助电路,通过ARM读取传感器中的数据,对方向盘转向角,方向盘转向角速度以及转动方向这三个参数进行数据采集.这些参数为汽车自适应前照灯控制,以及助力转向系统提供了方向盘转向角相关信息,为了便于对采集到的数据进行分析,方向盘转向角传感器采集到的数据通过串口送到上位机上,并且利用Matlab对采集的数据进行分析处理.%Through the analysis of steering wheel angle sensor, data acquisition system of steering angle sensor and the corresponding external auxiliary circuit were designed. Through reading the data from sensor with ARM, the data acquisition was performed with parameters of steering wheel, steering wheel angular velocity and rotation direction. These parameters provided related information of steering wheel angle for the control of automotive adaptive headlamps and the power steering system. In order to analyze the collected data, the data of steering wheel angle sensor was sent to the host computer through the serial port, and the collected data were processed through Matlab.