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. 11, 2007
Filed:
Jul. 21, 2004
Tomoya Imazu, Yokohama, JP;
Shinichiro Joe, Yokohama, JP;
Michel Mensler, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A hybrid transmission for a hybrid vehicle mounting thereon an engine and a pair of electric motor/generators operates in a plurality of driving modes including EV mode in which the vehicle is powered by only the pair of motor/generators and EIVT mode in which the vehicle is powered by both the pair of motor/generators and the engine. The driving mode is shifted continuously and smoothly through a mode-shift transition process, in which the operating state is regulated to decrease the relative torque and/or the relative rotational speed between the contact elements of an engine clutch before engaging or disengaging the engine clutch.