电动助力转向系统扭矩信号采集系统设计

电动助力转向系统是安装在汽车上的智能转向机构,通过其控制器获取方向盘输入扭矩的实时信号,以及车速信号等表征汽车运行状态的参数,确定助力电机所提供的助力转矩的大小和方向,辅助驾驶员进行转弯,同时保证汽车的操纵稳定性和安全性。为了保证助力的准确性和快速性,需要对方向盘输入扭矩信号进行检测,针对扭矩信号的采样要求,设计的扭矩信号采集系统主控芯片采用DSP,联合高精度4通道同步采样A/D转换芯片AD7864,可实现对扭矩信号的采样。

Torque Signal Collecting System Design of Electric Power Steering System

Electric power steering(EPS) system is an electronic controlling steering system mounted on the traditional mechanical steering system.The ECU of EPS is to detect the torque of the steering wheel input,vehicle speed signals and other signals which can instruct the road state,so as to control the assisting motor to help the driver to steer the wheel,simultaneously guaranteeing the stability and security.In order to make sure the accuracy and rapidity of assisting process,a signal collecting system is designe...