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:
Nov. 23, 2010
Filed:
Jul. 12, 2007
Shusaku Katakura, Kanagawa, JP;
Masaaki Uchida, Kanagawa, JP;
Yoshinobu Kawamoto, Kanagawa, JP;
Tomoaki Honma, Kanagawa, JP;
Sadamu Fujiwara, Kanagawa, JP;
Shusaku Katakura, Kanagawa, JP;
Masaaki Uchida, Kanagawa, JP;
Yoshinobu Kawamoto, Kanagawa, JP;
Tomoaki Honma, Kanagawa, JP;
Sadamu Fujiwara, Kanagawa, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
An automatic transmission includes at least an input section, an output section, first and second frictional engagement elements, and a controller. The input section receives an input torque from a drive unit. The first frictional engagement element has an engaged state allowing the output section to rotate at a first transmission gear ratio with respect to the input section. The second frictional engagement element has an engaged state allowing the output section to rotate at a second transmission gear ratio with respect to the input section. The controller controls at least a gear shift from the first transmission gear ratio to the second transmission gear ratio. The controller controls the first and second frictional engagement elements and the drive unit so as to cancel an inertia torque resulting from the gear shift.