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:
Oct. 05, 2004
Filed:
Aug. 30, 2002
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A control apparatus for a motor-driven power steering system of a motor vehicle includes a steering angular information detecting means ( ) for detecting steering angular information of a steering mechanism ( ), a controller ( ) for controlling a motor current on the basis of the steering angular information and magnitude and direction of a steering torque, an electric motor ( ) operatively coupled to the steering mechanism ( ) for generating a steering assist torque (Ta) corresponding to the motor current, the assist torque being applied to a steering wheel, a motor-rotational information detecting means ( ) for detecting rotational information of the electric motor ( ), and an abnormality decision means ( ) designed to make decision that the steering angular information detecting means ( ) is abnormal when a difference between the steering angular information and the motor rotational information is not smaller than a reference value preset for comparison of both the information.