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:
Apr. 22, 2014
Filed:
Apr. 13, 2011
Morimasa Yamawaki, Tokyo, JP;
Morimasa Yamawaki, Tokyo, JP;
JATCO Ltd, Fuji-shi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A lockup clutch control apparatus controls slippage of a lockup clutch to a desired slippage by manipulating clutch engagement force of the lockup clutch, wherein an engine is provided with a supercharger, and a torque converter is disposed between the engine and an automatic transmission, and provided with the lockup clutch. The lockup clutch control apparatus includes a controller configured to: set the clutch engagement force based on a measured value of torque inputted to the lockup clutch; determine whether the engine is operating in a predetermined supercharger lag region in which the measured value deviates from an actual value of the torque; and perform a first operation of correcting the clutch engagement force by reducing the clutch engagement force in response to determination that the engine is operating in the supercharger lag region.