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:
Dec. 12, 1989

Filed:

Aug. 31, 1988
Applicant:
Inventors:

Hiroaki Maeda, Toyota, JP;

Masahiko Nakamura, Okazaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; B60K / ;
U.S. Cl.
CPC ...
74866 ; 74877 ; 3644241 ;
Abstract

A creep phenomenon of an automotive vehicle is prevented by an arrangement which is provided with an anti-creep mode which is operative to change the gear automatically to a speed range having a relatively low speed reduction ratio when the vehicle is at rest. A double engagement within the transmission and resulting oscillations which would occur when a special operation is performed is prevented. At this end, a time delay is provided before shifting to the anti-creep mode when the vehicle is at rest and the throttle valve opening of an engine is equal to or less than a given value.


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Maeda, Hiroaki. (1989). Control system for automatic transmission (U.S. Patent No. 4885960). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4885960

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