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:
Mar. 13, 2012
Filed:
Oct. 30, 2006
Midori Yamaguchi, Yokohama, JP;
Yoshihisa Kodama, Yokohama, JP;
Toshiji Iida, Kanagawa, JP;
Toshiyuki Shibuya, Kanagawa, JP;
Tatsuya Ozone, Kanagawa, JP;
Midori Yamaguchi, Yokohama, JP;
Yoshihisa Kodama, Yokohama, JP;
Toshiji Iida, Kanagawa, JP;
Toshiyuki Shibuya, Kanagawa, JP;
Tatsuya Ozone, Kanagawa, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
A control apparatus for an automatic transmission includes a control section having a target secondary pressure setting section configured to set a target secondary pressure within a strength limit of the belt, and an operation switching section configured to switch a shift operation from a normal speed to a high speed higher than the normal speed when a predetermined condition is satisfied. The control section is configured to control the secondary pressure regulating valve by a feedback control based on the target secondary pressure and the actual secondary pressure sensed by the hydraulic pressure sensor. The target secondary pressure setting section is configured to modify the target secondary pressure by adding a predetermined quantity when a correction initiation condition is satisfied, the condition initiation including a first condition that the shift operation is performed at a high speed by switching of the operation switching section.