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. 27, 2005
Filed:
Feb. 10, 2004
Kazuhiro Takatori, Yokohama, JP;
Morimasa Yamawaki, Kanagawa, JP;
Koji Koizumi, Kanagawa, JP;
Nobuaki Mochizuki, Tokyo, JP;
Hiroyuki Tsukamoto, Kanagawa, JP;
Kazuhiro Takatori, Yokohama, JP;
Morimasa Yamawaki, Kanagawa, JP;
Koji Koizumi, Kanagawa, JP;
Nobuaki Mochizuki, Tokyo, JP;
Hiroyuki Tsukamoto, Kanagawa, JP;
JATCO Ltd, Fuji, JP;
Abstract
A shift pressure control apparatus for an automatic transmission is arranged to hold the shift pressure during a shift at a starting input-torque-dependent pressure determined from a transmission input torque at a start of a shift. A controller is configured to monitor an operating parameter representing an engine load of an engine, to detect an engine load change. When the engine load change is detected, the controller modifies the shift pressure to a modified pressure determined by modifying the starting input-torque-dependent pressure with a difference between a second engine-load-dependent pressure determined from the engine load after the engine load change and a first engine-load-dependent pressure determined from the engine load at the start of the shift.