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:
May. 25, 2004
Filed:
Nov. 25, 2002
Applicant:
Inventors:
Akihito Iwata, Anjo, JP;
Junichi Tokunaga, Anjo, JP;
Hiroshi Tanaka, Anjo, JP;
Ryoji Habuchi, Toyota, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 6/100 ;
U.S. Cl.
CPC ...
F16H 6/100 ;
Abstract
When an SLT pressure of a linear solenoid valve is input into a control oil chamber of a garage shift control valve, and a direct control pressure from the garage shift control valve is output to a clutch or a brake, a hydraulic controller inputs the direct control pressure into a control oil chamber and executes feedback-control. Also, when a range pressure of a clutch modulator valve is output to the clutch or the brake by switching the garage shift valve, the hydraulic controller inputs the range pressure, which is higher than the SLT pressure, into the control oil chamber and fixes the garage shift control valve.