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:
Dec. 05, 1995
Filed:
Apr. 07, 1993
Applicant:
Inventor:
Akira Miyazaki, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61C / ;
U.S. Cl.
CPC ...
318 52 ; 318 34 ; 318 53 ;
Abstract
An electric motor vehicle control apparatus has a control circuit which includes a slip/slide detection circuit. A minimum value among the wheel speeds is used to determine a slip condition whereas a maximum value is used to determine a slide condition. A control signal controlling each of the motors driving the wheels may thus be adjusted for the detected slip or slide condition. The control signal may also be generated based on different diameter wheels resulting from frictional induced diameter variations.