Control of suspension system with active stabilizer considering roll reduction and ride comfort

Kei Ichi Yamamoto, Hidekazu Nishimura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, a control system for an active stabilizer is designed in order to not only reduce the roll angle during cornering but also suppress the rolling vibration on a rough road concerning the ride comfort. A full vehicle model which has a suspension system with the active stabilizer is derived. The active stabilizer has an actuator which can actively generate the torque at the center of a stabilizer bar. In order to balance competing goals for the roll reduction and the improvement of the ride comfort, the control system for the active stabilizer is obtained using the linear quadratic control theory. It is verified that the control system designed can settle the rolling vibration on the rough road more quickly than the vehicle model of a normal suspension while reducing the steady roll angle during cornering to the same level as that of a passive stabilizer, and control the roll motion by the control torque which is lower than the reaction torque of the passive stabilizer.

Original languageEnglish
Pages (from-to)1327-1335
Number of pages9
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume75
Issue number753
Publication statusPublished - 2009 May

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Control systems
Torque
Torque control
Control theory
Actuators

Keywords

  • Active stabilizer
  • Automobile
  • Linear quadratic control
  • Modeling
  • Motion control
  • Ride comfort
  • Rolling vibration
  • 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 control system for an active stabilizer is designed in order to not only reduce the roll angle during cornering but also suppress the rolling vibration on a rough road concerning the ride comfort. A full vehicle model which has a suspension system with the active stabilizer is derived. The active stabilizer has an actuator which can actively generate the torque at the center of a stabilizer bar. In order to balance competing goals for the roll reduction and the improvement of the ride comfort, the control system for the active stabilizer is obtained using the linear quadratic control theory. It is verified that the control system designed can settle the rolling vibration on the rough road more quickly than the vehicle model of a normal suspension while reducing the steady roll angle during cornering to the same level as that of a passive stabilizer, and control the roll motion by the control torque which is lower than the reaction torque of the passive stabilizer.",
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