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:
Jul. 24, 1990
Filed:
Nov. 27, 1989
Tomoyuki Watanabe, Susono, JP;
Setsuo Tokoro, Susono, JP;
Takashi Hayashi, Susono, JP;
Takashi Shigematsu, Susono, JP;
Abstract
Method and apparatus for controlling an electromagnetic clutch which is incorporated in a power transmission system of a vehicle to transmit a torque of an engine to drive wheels, when the vehicle is started on a road surface having a low coefficient of friction. The method or apparatus comprises: a step or device for increasing progressively a transmission torque which is transmitted by the electromagnetic clutch; a step or device for detecting a slip of the drive wheels on the road surface; and a step or device for reducing, upon detection of the slip of the drive wheels, the transmission torque of the electromagnetic clutch until the drive wheels have ceased to slip on the road surface.