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. 02, 2014
Filed:
Feb. 02, 2011
Takashige Hinami, Machida, JP;
Masaki Watanabe, Machida, JP;
Yasutaka Kawamura, Atsugi, JP;
Kazuya Murota, Tokyo, JP;
Hirofumi Michioka, Fujisawa, JP;
Takashige Hinami, Machida, JP;
Masaki Watanabe, Machida, JP;
Yasutaka Kawamura, Atsugi, JP;
Kazuya Murota, Tokyo, JP;
Hirofumi Michioka, Fujisawa, JP;
Jatco Ltd, Fuji-shi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
In a control device for an automatic transmission having a flow control mechanism that causes a part of a working oil discharged from a mechanical oil pump to flow into the mechanical oil pump when a differential pressure between an upstream side and a downstream side of a narrowed portion increases beyond a predetermined value, the narrowed portion being provided in a discharge passage through which the working oil discharged from the mechanical oil pump flows, a line pressure is raised when an oil temperature of the working oil is equal to or higher than a predetermined oil temperature and an engine torque is equal to or smaller than a predetermined engine torque.