Distributed control system design for active stabilizer and electric power steering improving driving stability

Kei Ichi Yamamoto, Hidekazu Nishimura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, a distributed control system for an active stabilizer and an electric power steering (EPS) is designed in order to improve the performance on vehicle agility and stability. A full vehicle simulation model with the active stabilizer and the EPS is derived and used to evaluate the performance for the distributed controllers design. A controller for the active stabilizer is designed using the linear quadratic (LQ) control theory to balance competing goals for the roll reduction of a vehicle body during cornering and the improvement of the ride comfort on a rough road and to especially take the road surface disturbance to the steering system into account. Also a controller for the EPS considering the self-aligning torque generated from the vehicle system with the stabilizer is designed to assist the steering of the driver by applying the. control theory. It is verified that the distributed control system applied to the full vehicle model is effective to not only reduce the roll motion and the steering torque during cornering but also improve the driving stability and the ride comfort on the rough road.

Original languageEnglish
Pages (from-to)1271-1279
Number of pages9
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume76
Issue number765
Publication statusPublished - 2010 May

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Distributed parameter control systems
Systems analysis
Control theory
Controllers
Torque

Keywords

  • Active stabilizer
  • Automobile
  • Driving stability
  • Electric power steering
  • Modeling
  • Motion control
  • Ride comfort
  • Vehicle dynamics
  • Vibration control

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

Cite this

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abstract = "In this paper, a distributed control system for an active stabilizer and an electric power steering (EPS) is designed in order to improve the performance on vehicle agility and stability. A full vehicle simulation model with the active stabilizer and the EPS is derived and used to evaluate the performance for the distributed controllers design. A controller for the active stabilizer is designed using the linear quadratic (LQ) control theory to balance competing goals for the roll reduction of a vehicle body during cornering and the improvement of the ride comfort on a rough road and to especially take the road surface disturbance to the steering system into account. Also a controller for the EPS considering the self-aligning torque generated from the vehicle system with the stabilizer is designed to assist the steering of the driver by applying the∞. control theory. It is verified that the distributed control system applied to the full vehicle model is effective to not only reduce the roll motion and the steering torque during cornering but also improve the driving stability and the ride comfort on the rough road.",
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KW - Modeling

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KW - Ride comfort

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KW - Vibration control

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