Control system design of electric power steering for a full vehicle model with active stabilizer

Kei Ichi Yamamoto, Hidekazu Nishimura

Research output: Contribution to conferencePaper

Abstract

In this paper, we designed a control system of an electric power steering (EPS) by considering an active stabilizer. A full vehicle simulation model with the active stabilizer is derived and used to design a controller of the EPS. Although controllers of the EPS are designed generally to obtain the steering feeling similar to a hydraulic power steering (HPS), it is difficult to obtain comfortable steering feeling on driving situations such as on a rough road. Therefore, we design a controller of the active stabilizer which can not only reduce the roll motion of a vehicle body but also suppress the self-aligning torque which acts on a steering axis through front tires on the rough road. The controller of the EPS is designed by applying a gain-scheduled control considering the self-aligning torque which acts on a steering axis from the front tires during driver's steering and a sensor torque on the steering axis. The control system of the EPS considering the active stabilizer is tuned according to a design strategy of the control system. It is verified that the proposed control system is effective to obtain the comfortable steering feeling similar to the HPS during the driver's steering and reduce the loads of both the driver's steering and the EPS during the rough road running.

Original languageEnglish
Publication statusPublished - 2010 Aug 16
Event10th International Conference on Motion and Vibration Control, MOVIC 2010 - Tokyo, Japan
Duration: 2010 Aug 172010 Aug 20

Other

Other10th International Conference on Motion and Vibration Control, MOVIC 2010
CountryJapan
CityTokyo
Period10/8/1710/8/20

Keywords

  • Active stabilizer
  • Driving stability
  • Electric power steering
  • Ride comfort
  • Vehicle dynamics

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Yamamoto, K. I., & Nishimura, H. (2010). Control system design of electric power steering for a full vehicle model with active stabilizer. Paper presented at 10th International Conference on Motion and Vibration Control, MOVIC 2010, Tokyo, Japan.