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:
May. 31, 2011
Filed:
Dec. 01, 2008
Tetsuya Shimizu, Anjo, JP;
Kenichi Tsuchida, Anjo, JP;
Masamichi Yamaguchi, Anjo, JP;
Satoshi Nishio, Hekinan, JP;
Akitomo Suzuki, Anjo, JP;
Kazunori Ishikawa, Anjo, JP;
Tetsuya Shimizu, Anjo, JP;
Kenichi Tsuchida, Anjo, JP;
Masamichi Yamaguchi, Anjo, JP;
Satoshi Nishio, Hekinan, JP;
Akitomo Suzuki, Anjo, JP;
Kazunori Ishikawa, Anjo, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
In a condition of a vehicle which remains stationary or is about to stop and of a forward second speed having a clutch and a brake engaged, an N range is changed from a D range based on a shift lever operation and a forward range pressure is discharged from a manual shift valve. At this time, an orifice and a check ball are used to delay discharge of oil paths which communicate with a linear solenoid valve relative to discharge of an oil path awhich communicates with a linear solenoid valve. Specifically, release of the brake is delayed relative to release of the clutch, so that a shift by way of a forward first speed through engagement of a one-way clutch can be prevented.