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:
Feb. 19, 1991
Filed:
May. 16, 1984
Applicant:
Inventor:
Katsunori Oshiage, Yokosuka, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74866 ; 3644241 ;
Abstract
A deviation of an actual reduction ratio from a desired reduction ratio is computed. A proportional and integral control is carried out so as to reduce the deviation in good response. A proportional term control gain and an integral term control gain are given different values for downshifting and upshifting, respectively, so as to provide a quick response in downshifting and a gradual response in upshifting.