Title:
電動パワーステアリング装置
Document Type and Number:
Japanese Patent JP5617455
Kind Code:
B2
Abstract:
An electric power steering system determines a steering state of a steering wheel on the basis of a current (Im) of a motor applying assist force to a steering system and a steering speed (És) of the steering wheel. A state where the steering wheel is retained at a position other than a neutral position is a retained state, and a state where the steering wheel is placed at the neutral position is a neutral state. When the steering speed (És) is lower than a determination value (Éa) and the motor current (Im) is larger than a reference value (Ix), it is determined whether the steering state is the neutral state. When the steering speed (És) is lower than the determination value (Éa), the motor current (Im) is larger than the reference value (Ix), and the steering state is determined to be the neutral state at immediately preceding determination, the steering state is determined to be the neutral state.
Inventors:
前田 真悟
狩集 裕二
狩集 裕二
Application Number:
JP2010199041A
Publication Date:
November 05, 2014
Filing Date:
September 06, 2010
Export Citation:
Assignee:
株式会社ジェイテクト
International Classes:
B62D6/00; B62D5/04; H02P7/06
Attorney, Agent or Firm:
Hironori Onda
Makoto Onda
Makoto Onda