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:
Sep. 19, 2017
Filed:
Dec. 25, 2014
Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;
Nobuyuki Hirai, Anjo, JP;
Yoshihiro Maeda, Nagoya, JP;
Masamichi Yamaguchi, Anjo, JP;
Yoshimitsu Hyodo, Nishio, JP;
Kenichi Tsuchida, Nishio, JP;
AISIN AW CO., LTD., Anjo, JP;
Abstract
The present invention provides a control unit. When the control unit performs shifting from a state in which a first shift speed is established by supplying engagement pressures to both hydraulic oil chambers and engaging a predetermined engagement element to a second shift speed by switching engagement and disengagement states of engagement elements other than the predetermined engagement element (Step S), the control unit reduces the supply of the engagement pressure to one of the two hydraulic oil chambers to a level lower than that in the state in which the first shift speed is established (Step S).