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:
Nov. 26, 2013
Filed:
Oct. 30, 2009
Tooru Matsubara, Toyota, JP;
Atsushi Tabata, Okazaki, JP;
Masakazu Kaifuku, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Abstract
A controller for a power transmission system that uses an engine and a motor as driving force sources to transmit power and that includes a transmission unit is provided. The transmission unit has a plurality of engagement devices and establishes a plurality of gears having different speed ratios by the frictional engagement devices. The transmission unit is arranged downstream of the driving force sources. The controller includes a torque transmission capacity setting unit that, when the transmission unit shifts gears, varies torque transmission capacities of the frictional engagement devices on the basis of an operating state of the motor and an operating state of the engine.