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:
Jan. 06, 1987
Filed:
Mar. 22, 1984
Applicant:
Inventor:
Francois Leorat, Versailles, FR;
Assignee:
Regie Nationale des Usines Renault, Boulogne Billancourt, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192-0055 ; 74866 ; 74867 ; 192-0032 ; 192-0076 ; 192-331 ; 1921 / ;
Abstract
A device for controlling the supply pressure of a hydraulic actuator for an automatic transmission of an automobile. A pressure modulator varies the hydraulic pressure depending on the output of a controller. The controller receives input information on engine speed, turbine speed, engine load and vehicle speed. The transmission is controlled to be disengaged when the automobile is stopped, and reengaged smoothly.