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:
Aug. 18, 2009
Filed:
Jun. 05, 2006
Masaya Endo, Tokyo, JP;
Noriyuki Inoue, Tokyo, JP;
Mineo Higuchi, Tokyo, JP;
Kenji Ogawa, Tokyo, JP;
Masaya Endo, Tokyo, JP;
Noriyuki Inoue, Tokyo, JP;
Mineo Higuchi, Tokyo, JP;
Kenji Ogawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a vehicle steering control device, a steering torque estimation unit estimates steering torque of a steering wheel based on driving current of an electric actuator; a torque sensor detects the steering torque of the steering wheel; an electric power assist unit is controlled based on the steering torque detected by the torque sensor; and a comparison unit compares the torque detected by the torque sensor with the steering torque estimated by the steering torque estimation unit. The electric power assist unit is controlled based on the estimated steering torque in place of being controlled based on the torque detected by the torque sensor when the torque sensor is judged to be abnormal, based on a comparison.