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:
Nov. 21, 2000
Filed:
Jul. 31, 1998
Akio Kobayashi, Wako, JP;
Osamu Tsurumiya, Wako, JP;
Takao Kurosawa, Wako, JP;
Nobuo Sugitani, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Electric power steering apparatus includes a control unit for setting a motor control signal to control operation of an electric power assisting motor on the basis of at least steering torque detected by a steering torque sensor and a vehicle velocity detected by a vehicle velocity sensor. The control unit includes a steering torque estimating section for estimating the steering torque on the basis of the vehicle velocity detected by the vehicle velocity sensor and a steering angle detected by a steering angle sensor. When the steering torque sensor is out of order or malfunctioned, the control unit controls the operation of the electric motor on the basis of the steering torque estimated by the steering torque estimating section.