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:
Jun. 29, 2010
Filed:
Nov. 16, 2007
Hiroyasu Tanaka, Atsugi, JP;
Hideshi Wakayama, Hadano, JP;
Shoichi Sekiguchi, Yokohama, JP;
Katsumi Doihara, Atsugi, JP;
Hideaki Sasaki, Ebina, JP;
Azusa Shimoda, Okazaki, JP;
Naohiro Hoshi, Atsugi, JP;
Tatsuya Ozone, Atsugi, JP;
Toshio Saitou, Atsugi, JP;
Koji Dohi, Machida, JP;
Hiroyasu Tanaka, Atsugi, JP;
Hideshi Wakayama, Hadano, JP;
Shoichi Sekiguchi, Yokohama, JP;
Katsumi Doihara, Atsugi, JP;
Hideaki Sasaki, Ebina, JP;
Azusa Shimoda, Okazaki, JP;
Naohiro Hoshi, Atsugi, JP;
Tatsuya Ozone, Atsugi, JP;
Toshio Saitou, Atsugi, JP;
Koji Dohi, Machida, JP;
JATCO Ltd, Fuji-shi, JP;
Abstract
A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for changing the clutch from an engaged state to a disengaged state based the hydraulic fluid pressure acting on the clutch during the stopping of the rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch from an engaged state to a disengaged state, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.