Design of Assistance Characteristics Curve for Electric Power Steering System

DOI

10.2991/amee-17.2017.27How to use a DOI?

Keywords

electric power steering system; assistance characteristic curve; speed interval division; static lateral acceleration gain

Abstract

Electric power steering (EPS) system can not only provide steering power and lighten the burden of the driver's manipulation, but also improve vehicle steering performance and driving comfort, thus improving vehicle active safety. However, in the process of EPS system development, the determination of EPS assistance characteristics curve mainly depends on the driver's subjective evaluation, which needs more time in real vehicle debugging and calibration. In this paper, a novel design method of EPS assistance characteristics curve is proposed. Firstly, the relationship between EPS assistance torque and the driver's steering torque is determined based on the steering wheel torque characteristics of passenger cars; Secondly, a speed interval division method of EPS assistance map is put forward based on the static lateral acceleration gain; Finally, a three-dimensional map that electric control unit demands is drawn and its effect is verified through the real vehicle test.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shaosong Li
AU  - Ren Sheng
AU  - Gaojian Cui
AU  - Shunhang Zheng
AU  - Zhixin Yu
AU  - Xiaohui Lu
PY  - 2017/09
DA  - 2017/09
TI  - Design of Assistance Characteristics Curve for Electric Power Steering System
BT  - Proceedings of the 2017 2nd International Conference on Automation, Mechanical and Electrical Engineering (AMEE 2017)
PB  - Atlantis Press
SP  - 129
EP  - 133
SN  - 2352-5401
UR  - https://doi.org/10.2991/amee-17.2017.27
DO  - 10.2991/amee-17.2017.27
ID  - Li2017/09
ER  -