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:
Jan. 30, 2007
Filed:
Sep. 23, 2003
Takaaki Tokura, Toyota, JP;
Norimi Asahara, Nishikamo-gun, JP;
Katsumi Kono, Toyota, JP;
Ryoichi Hibino, Nagoya, JP;
Hiroyuki Nishizawa, Tajimi, JP;
Masataka Osawa, Nagoya, JP;
Takaaki Tokura, Toyota, JP;
Norimi Asahara, Nishikamo-gun, JP;
Katsumi Kono, Toyota, JP;
Ryoichi Hibino, Nagoya, JP;
Hiroyuki Nishizawa, Tajimi, JP;
Masataka Osawa, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A control apparatus and method control a torque of an engine coupled to an input shaft of an automatic transmission during a shift by that automatic transmission. A torque-down control by which the engine torque is decreased by a predetermined amount is performed, a torque-restore control starting point at which time torque-restore control is to be started is determined, and the torque-restore control so as to gradually restore the engine torque to a value before the torque-down control was performed is started at the torque-restore control starting point. The torque-restore control starting point is determined according to a dynamic model which simulates behavior of the automatic transmission over time from start of the torque-down control, so that a rotational speed of the input shaft of the automatic transmission at a target point substantially matches a target speed.