某电控液压助力转向器的助力特性研究  

Assistance Characteristics of Electronic Hydraulic Power Steering

作　　者：杨翔宇[1] 王杰[1] 苏道齐[1] 

机构地区：[1]重庆理工大学车辆工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2014年第1期12-16,共5页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市科技攻关计划资助项目(CSTC.2009AB6021);重庆理工大学研究生创新基金资助项目(YCX2012201)

摘　　要：电控液压助力转向系统(EHPS)具有随速可变的助力特性。在深入了解某型号EHPS助力转向器基本结构、设计尺寸的基础上,对其工作原理进行详细分析;同时,建立了该EHPS的数学模型,推导出了该助力转向器的助力与转阀的设计参数之间的理论公式;通过仿真计算,得出其理论助力特性曲线,为新的助力转向装置的设计和匹配提供了依据。Electronic hydraulic power steering system （EHPS） has an alterable assistance characteris- tic which is adapted to vehicle speed. Based on the analysis of the structure and design parameters of an EHPS system, the working principle was elaborated. Then the mathematical model was built, and the theoretical formulas between the power steering assist and the design parameters were derived. The theoretical curves of assistance characteristics can be obtained by computer simulation, which lays the foundation for the design and choice of new power steering system.

关 键 词：电控液压助力转向器 转阀 仿真 助力特性 

分 类 号：U463.4[机械工程—车辆工程]