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:
Sep. 26, 1989
Filed:
Jan. 22, 1988
Applicant:
Inventors:
Mitsuharu Morishita, Hyogo, JP;
Shinichi Kohge, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
180 791 ; 318599 ;
Abstract
A motor-driven type power steering control device includes a control unit. When the control unit detects that power elements are short-circuited or in an open state, the control unit cuts off a current supplied from the power elements to a motor and a voltage applied to an electromagnetic clutch. By modifying a control program for the control unit, it is possible to attain the measures for preventing that burning of a wiring or a battery from dying upon short-circuiting of the power elements and the measures for preventing that only one side of a steering wheel becomes light to steer upon breakage of the power elements.