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. 22, 2011
Filed:
Dec. 11, 2007
Applicants:
Midori Yamaguchi, Yokohama, JP;
Fumito Shinohara, Atsugi, JP;
Yoshihisa Kodama, Sagamihara, JP;
Inventors:
Assignee:
Jatco Ltd, Fuji-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/662 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speed ratio change control device for a belt type continuously variable transmission calculates a maximum thrust that can be generated by the primary pulley on the basis of an upper limit value of the line pressure, calculates an upper limit value of a shift speed on the basis of the maximum thrust, and sets the target speed ratio on the basis of the upper limit value of the shift speed.