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. 11, 1992

Filed:

Jun. 29, 1990
Applicant:
Inventors:

Takuji Fujiwara, Hiroshima, JP;

Kohzo Ishii, Hiroshima, JP;

Assignee:

Mazda Motor Corporation, Hiroshima, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74866 ; 1921 / ; 74867 ;
Abstract

A line pressure controller deduces the completion of the speed change operation and sets the line pressure to a low level during the confirmation of the completion. If the acceleration is detected during the confirmation time period, the control device raises the line pressure up to an original level so as to prevent slip of the torque converter.


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