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:
Mar. 12, 1991
Filed:
Jul. 06, 1989
Applicant:
Inventor:
Akihiko Sano, Fujisawa, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74867 ; 74866 ;
Abstract
A line pressure control system features the use of a self-adjusting arrangement wherein the total shift time is determined and compared with a target time for the instant shift. The line pressure control duty cycle is modified until the line pressure level is adjusted in a manner which reduces the difference between the actual total shift time and the target value, to zero.