Title:
タイヤグリップ度推定装置及び方法、走行状態制御方法
Document Type and Number:
Japanese Patent JP4213994
Kind Code:
B2
Abstract:
A SAT estimator 16 estimates the SAT generated between the road surface and the tire. A lateral force detector 180 computes the lateral force generated in the wheels. A front-rear direction quantity-of-state arithmetic unit 240 computes the front-rear direction quantity of state generated in the wheels. A SAT model value arithmetic unit 22 computes the SAT model value from the lateral force value, the front-rear direction quantity of state, and tire parameter. Ratio computation means 28 computes a self-aligning ratio on the basis of the self-aligning torque estimated by the SAT estimator 16 and the SAT model value computed by said SAT model value arithmetic unit 22. A grip level estimator 26 estimates the grip level from the SAT model value computed by the SAT model value arithmetic unit 22.
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Inventors:
Eiichi Ono
Ken Koibuchi
Kenji Asano
Ken Koibuchi
Kenji Asano
Application Number:
JP2003151226A
Publication Date:
January 28, 2009
Filing Date:
May 28, 2003
Export Citation:
Assignee:
Toyota Central R & D Labs.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B60T8/1755; B60R16/02; B60T8/172; B60W30/00; B60W40/068; B60W40/101; B60W40/103; B62D6/00
Domestic Patent References:
| JP2002004931A | ||||
| JP2000052964A | ||||
| JP7137647A | ||||
| JP11291929A | ||||
| JP2003127888A |
Other References:
安部正人,自動車の運動と制御,日本,株式会社山海堂,1992年 7月10日,1版,27,37-40
カヤバ工業株式会社,自動車のサスペンション,日本,株式会社山海堂,1991年 3月30日,1版,97,218-220
カヤバ工業株式会社,自動車のサスペンション,日本,株式会社山海堂,1991年 3月30日,1版,97,218-220
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Kato Kazunori