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:
Nov. 01, 2005
Filed:
Feb. 27, 2004
Tatsuo Ochiai, Fuji, JP;
Yusuke Kimura, Fuji, JP;
Yoshichika Hagiwara, Fuji, JP;
Hironobu Waki, Fuji, JP;
Katsumi Doihara, Fuji, JP;
Hiroyasu Tanaka, Fuji, JP;
Hirofumi Okahara, Fuji, JP;
Tatsuo Ochiai, Fuji, JP;
Yusuke Kimura, Fuji, JP;
Yoshichika Hagiwara, Fuji, JP;
Hironobu Waki, Fuji, JP;
Katsumi Doihara, Fuji, JP;
Hiroyasu Tanaka, Fuji, JP;
Hirofumi Okahara, Fuji, JP;
Jatco Ltd, Fuji, JP;
Abstract
A clutch engagement control device controls the engagement of a forward clutch () and reverse clutch () in an automatic transmission connected to an engine () in a vehicle. An inhibitor switch () outputs a range signal in accordance with a position range of a select lever (). A manual valve () supplies oil pressure selectively to one of the forward clutch () and the reverse clutch () by changing position in accordance with the position range of the select lever (). A controller () of the clutch engagement control device determines whether an unmatching range condition occurs in which the range of the select lever () indicated by the range signal and the range of the manual valve () do not match, when the range of the select lever () indicated by the range signal is a drive range or reverse range; and suppress an increase in engine rotation speed prior to engagement of the forward clutch or reverse clutch when the unmatching range condition occurs.