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:
Dec. 22, 2015
Filed:
Dec. 05, 2013
Kenji Gotoda, Mishima, JP;
Koji Hayashi, Nagakute, JP;
Koki Ueno, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Abstract
A control device for a hybrid vehicle is equipped with an engine, an electric motor, and a damper that is interposed in a motive power transmission path between the engine and the electric motor. The control device is equipped with a hysteresis mechanism and a controller. The hysteresis mechanism is provided in the damper, is configured to have a characteristic that a hysteresis torque that is generated due to a twist of the damper, which transmits a driving force from the electric motor toward the engine, in a negative direction is larger than a hysteresis torque that is generated due to a twist of the damper, which transmits a driving force from the engine toward the electric motor, in a positive direction, and is configured to reduce an engine rotational speed by the electric motor in stopping the engine. The controller is configured to cause a torque, of the electric motor to be output such that the damper assumes a state of being twisted in the negative direction when a torque in such a direction as to drive the engine is applied from the electric motor in stopping the engine.