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:
Aug. 28, 2012
Filed:
Dec. 17, 2008
Tetsuya Shimizu, Anjo, JP;
Masamichi Yamaguchi, Anjo, JP;
Satoshi Nishio, Hekinan, JP;
Kenichi Tsuchida, Anjo, JP;
Akitomo Suzuki, Anjo, JP;
Kazunori Ishikawa, Anjo, JP;
Shin-ichirou Murakami, Anjo, JP;
Tetsuya Shimizu, Anjo, JP;
Masamichi Yamaguchi, Anjo, JP;
Satoshi Nishio, Hekinan, JP;
Kenichi Tsuchida, Anjo, JP;
Akitomo Suzuki, Anjo, JP;
Kazunori Ishikawa, Anjo, JP;
Shin-ichirou Murakami, Anjo, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
An exemplary control device includes an input torque detection unit that detects an input torque input to the input shaft; and a controller that: determines torque distribution of two of the friction engagement elements that form the shift speeds; and calculates a transmission torque of the two friction engagement elements based on the input torque and the torque distribution and sets the engagement pressure to obtain a torque capacity that can transmit the transmission torque, wherein the controller sets the engagement pressure such that slippage does not occur in the two friction engagement elements in a state where engagement of the two friction engagement elements forms the shift speeds and such that, even if an additional friction engagement element engages based on the line pressure while the two friction engagement elements are engaged, one of the three friction engagement elements is caused to slip.