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.

Date of Patent:
Jul. 14, 1987

Filed:

Jan. 29, 1985
Applicant:
Inventors:

Ryuzo Sakakiyama, Tokyo, JP;

Toshio Takano, Hamura, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; F16D / ;
U.S. Cl.
CPC ...
3644241 ; 192-0032 ; 192-0052 ; 192-0076 ;
Abstract

A system for controlling an electromagnetic clutch for an infinitely variable belt-drive transmission, which is provided with an accelerator pedal switch for producing an output signal at release of an accelerator pedal of a vehicle, and a vehicle speed detector for producing an output signal at a low vehicle speed. The system is arranged to produce a small drag current signal in dependency on the accelerator pedal release signal and the low vehicle speed signal, so that a small drag clutch current flows in a coil of the electromagnetic clutch.


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