电动助力转向系统的曲线型助力特性设计及分析  

Design and Analysis of Curve-type Assistance Characteristics of Electric Power Steering System

作　　者：何仁[1] 耿国庆[1] 苗立东[2] 王翠萍[2] 

机构地区：[1]江苏大学,镇江212013 [2]山东理工大学,淄博255049

出　　处：《中国机械工程》2007年第20期2515-2518,共4页China Mechanical Engineering

基　　金：江苏省六大人才高峰计划项目(E-2002-012)

摘　　要：将分段式抛物线作为助力特性曲线,实现了电动助力转向系统的曲线型助力功能,设计了能够实现曲线型助力的单片机控制系统。建立了单片机控制系统相应的数学模型,采用Z变换对系统的稳定性进行了分析。试验表明所设计的单片机控制系统能够实现曲线型助力功能。A method of segmeted parabola-type assistance characteristic was brought out to real ize the curve-type assistance characteristics of the electric power steering system,and a single chipmicrocomputer-based controller was designed to carry out the task. The mathematical model of single chip microcomputer control system was constructed,and Z transform was used to analyse the stability of the system. The test result shows that single chip microcomputer control system can realize the curve-type assistance characteristics.

关 键 词：电动助力转向 控制系统 曲线型 助力特性 

分 类 号：U469.72[机械工程—车辆工程]