The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2005
Filed:
Aug. 27, 2003
Yoshinobu Mukai, Wako, JP;
Kyoji Hamamoto, Wako, JP;
Hiroaki Horii, Wako, JP;
Kazuhisa Watanabe, Wako, JP;
Yoshinobu Mukai, Wako, JP;
Kyoji Hamamoto, Wako, JP;
Hiroaki Horii, Wako, JP;
Kazuhisa Watanabe, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An electric power steering apparatus is provided, which includes a steering torque sensor for detecting steering torque exerted on a steering system, a motor for exerting assist steering torque on the steering system, a motor current sensor for detecting drive current of the motor, a target current setting section for determining target current to be supplied for the motor based on the steering torque, a feedback control section for executing feedback control based on a deviation between the target current and the drive current of motor and a feedforward control section for executing feedforward control based on the target current. The apparatus has a feature that gain of the feedforward control is adapted to be greater as the speed of a vehicle increases.