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:
Aug. 20, 1985
Filed:
May. 13, 1983
Applicant:
Inventors:
Yoshikazu Tanaka, Yokohama, JP;
Keiju Abo, Yokosuka, JP;
Hiroyuki Hirano, Yokosuka, JP;
Haruyoshi Kumura, Yokohama, JP;
Sigeaki Yamamuro, Zushi, JP;
Yoshiro Morimoto, Yokosuka, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; B60K / ;
U.S. Cl.
CPC ...
474 28 ; 474 18 ; 74862 ;
Abstract
The reduction ratio of a continuously variable transmission is controlled by a shift motor. The shift motor is controlled such that each of rotary positions thereof corresponds uniquely to a desired optimum reduction ratio. Upon detecting a state wherein a rapid shifting is needed, the shift motor is rotated at an increased revolution speed as compared to a normal revolution speed.