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:
Dec. 25, 2012
Filed:
Dec. 22, 2009
Nobuaki Inagaki, Nishio, JP;
Hiroya Ueno, Wolfsburg, DE;
Kohei Tsuda, Anjo, JP;
Eiji Moriyama, Okazaki, JP;
Hiroshi Tsutsui, Nishio, JP;
Nobuaki Inagaki, Nishio, JP;
Hiroya Ueno, Wolfsburg, DE;
Kohei Tsuda, Anjo, JP;
Eiji Moriyama, Okazaki, JP;
Hiroshi Tsutsui, Nishio, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Abstract
A control device includes a differential rotation obtaining unit; a direct-coupling control unit that decreases the differential rotation speed by increasing an engagement pressure of the direct-coupling clutch at a normal pressure increase rate determined depending on a traveling state of a vehicle so as to change the direct-coupling clutch from a released state to an engaged state; and a pressure increase control unit that changes to a rapid pressure increase rate larger than the normal pressure increase rate for increasing the engagement pressure by the direct-coupling control unit when the differential rotation speed becomes equal to or smaller than a predetermined pressure increase permission threshold in a state that an accelerator opening of the vehicle decreases.