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:
Feb. 02, 1999

Filed:

Apr. 07, 1997
Applicant:
Inventors:

Tadashi Tamura, Aichi-ken, JP;

Kenichi Yoshizawa, Nagoya, JP;

Tokuyuki Takahashi, Owariasahi, JP;

Masahiro Kojima, Okazaki, JP;

Naoki Kato, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ; B60K / ; F02D / ;
U.S. Cl.
CPC ...
477181 ; 477 83 ; 477109 ;
Abstract

An apparatus for controlling a releasing action of a lock-up clutch in a power transmitting system of a motor vehicle wherein the lock-up clutch is disposed between a pump impeller connected to an engine, and a turbine impeller operatively connected to a drive wheel of the motor vehicle, the lock-up clutch being engaged for direct connection of the pump impeller and the turbine impeller, the apparatus including a lock-up clutch switching device for effecting a releasing action of the lock-up clutch from a fully engaged state thereof to a fully released state thereof, and an engine output reducing device for temporarily reducing an output of the engine upon the releasing action of the lock-up clutch.


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