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. 27, 2007
Filed:
Sep. 30, 2004
Satoshi Segawa, Atsugi, JP;
Kazutaka Adachi, Yokohama, JP;
Tatsuya Imamura, Machida, JP;
Kouji Saitou, Yamato, JP;
Morimasa Yamawaki, Yokohama, JP;
Koji Dohi, Machida, JP;
Toshiji Iida, Sagamihara, JP;
Hiroshi Sekiya, Atsugi, JP;
Satoshi Segawa, Atsugi, JP;
Kazutaka Adachi, Yokohama, JP;
Tatsuya Imamura, Machida, JP;
Kouji Saitou, Yamato, JP;
Morimasa Yamawaki, Yokohama, JP;
Koji Dohi, Machida, JP;
Toshiji Iida, Sagamihara, JP;
Hiroshi Sekiya, Atsugi, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Jatco Ltd, Fuji, JP;
Abstract
A controller () performs open loop control of the engaging state of a lockup clutch () through a switching mechanism () when a torque converter () transitions from a first state in which the lockup clutch () is disengaged to a second state in which the lockup clutch () is at least partially engaged. At this time, the controller () estimates the engine torque at the time when open loop control ends, estimates a necessary lockup capacity required for the converter () at the time when open loop control ends, based on the estimated engine torque, and controls the engaging state of the lockup clutch () through the switching mechanism () to make the lockup capacity at the time when open loop control ends become the necessary lockup capacity.