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, 1994
Filed:
Jul. 20, 1992
Applicant:
Inventors:
Assignees:
Jidosha Kiki Co., Ltd., , JP;
Fujitsu Limited, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180 791 ; 180142 ; 318489 ;
Abstract
According to a current limiting method in an electric power steering apparatus, a steering angular speed and the direction of a drive current are monitored. A condition in which a steering wheel is locked is discriminated from a condition in which the steering wheel is turned on the basis of combinations of the steering angular speed and the drive current direction. Processing of limiting a current value of an excessive drive current is executed only when the condition in which the steering wheel is locked is determined.