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:
Oct. 16, 2012
Filed:
Dec. 30, 2009
Kazuki Hirasako, Tokyo, JP;
Masami Suzuki, Mishima, JP;
Kazuki Hirasako, Tokyo, JP;
Masami Suzuki, Mishima, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
A control apparatus includes a shift-pressure learning correction controlling section configured to perform a shift-pressure learning correction in which a physical quantity representing a progress of shift is measured at a time of a current downshift, and in which an engagement command pressure for a friction element is corrected at a time of a next downshift on the basis of a divergence between the measured physical quantity and a target physical quantity; a shift-torque increase controlling section configured to perform a torque increase control in which a command for temporarily increasing torque of a drive source starts to be outputted when a start estimation timing of torque phase has just come during a transition period given between start and end of the downshift; and a learning convergence judging section configured to judge whether the shift-pressure learning correction has converged.