摘要
针对国内汽车电动助力转向系统(EPS)的发展现状和性能要求,基于PIC18F458系列单片机对EPS系统电控单元软硬件进行设计,着重阐述了方向盘扭矩传感器信号采集和带有CAN总线的信息采集模块,以及通过全控桥电机驱动电路实现的PWM脉宽调制永磁无刷直流电机控制模块的工作原理及其实现方法.试验结果表明该电控单元工作正常、性能可靠,满足汽车助力转向的舒适性和安全性要求.
According to the domestic development status and performance requirements of electric power steering sys- tem （EPS） , the software and hardware of electronic control unit of EPS is designed based on PIC18F458 Series MCU. The paper focuses on the principle and realization method of the information acquisition module that contains steering wheel torque sensor signals and the information of CAN Bus, and the control module of permanent magnet brushless DC motor which drives by fully controlled bridge circuit. The experimental results show that the electronic control unit works normally and reliably, safely meets the requirements of automotive power steering.
出处
《浙江水利水电学院学报》
2015年第2期77-80,共4页
Journal of Zhejiang University of Water Resources and Electric Power
基金
福建省教育厅A类项目(JA14373)
福建省交通厅科技项目(2014Y062)
