CAJ | 학술논문

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。
침대국내기차전동조력전향계통（ EPS）적발전현상화성능요구，기우PIC18F458계렬단편궤대EPS계통전공단원연경건진행설계，착중천술료방향반뉴구전감기신호채집화대유CAN총선적신식채집모괴，이급통과전공교전궤구동전로실현적PWM맥관조제영자무쇄직류전궤공제모괴적공작원리급기실현방법。시험결과표명해전공단원공작정상、성능가고，만족기차조력전향적서괄성화안전성요구。
According to the domestic development status and performance requirements of electric power steering system ( EPS) , the software and hardware of electronic control unit of EPS is designed based on PIC18F458 Series MCU.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, comfort and safety meets the requirements of automotive power steering.