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:
Jan. 06, 2009
Filed:
Sep. 15, 2006
Tomoaki Ogata, Hyogo, JP;
Tomoaki Ogata, Hyogo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A transmission apparatus can perform a shift operation quickly without generating tooth contact and gear noise when shifting to a nonsynchronized gear train. The apparatus includes a first clutch; a first and a second input shaft; an output shaft; a planetary gear mechanism having a first and a second planetary gear train, a band brake and a direct clutch; a selection type gear train unit having a nonsynchronized gear train; a second rotation speed detector for detecting the rotation speed of the second input shaft as a second rotation speed; actuators; and a gear shift control part for controlling the actuators. When a request for shift to the nonsynchronized gear train is generated, the first clutch is released, the band brake is tightened, and the direct clutch is connected to reduce the second rotation speed. When the second rotation speed becomes equal to or less than a predetermined speed, a gear shift is executed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile