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:
Apr. 08, 2003
Filed:
Sep. 18, 2001
Applicant:
Inventor:
Yuji Saito, Shizuoka, JP;
Assignee:
Jatco Ltd, Fuji, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 6/112 ; F16H 6/106 ;
U.S. Cl.
CPC ...
F16H 6/112 ; F16H 6/106 ;
Abstract
If, in a gear shift from one-way clutch involved gear speed to another gear speed, the inertia phase control time) is less than a predetermined time length, or the effective gear ratio on the inertia phase end detection instant is out of a range between before-shift gear ratio and after-shift gear ratio, a transmission control system controls the operating fluid pressure in a time management mode to prevent a shift shock by increasing the fluid pressure) at a gradual rate &Dgr;PC during a longer time interval TMC after an end of the inertia phase.