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. 12, 2019
Filed:
Dec. 21, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Hidehiro Oba, Nagakute, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A drive device is equipped with a countershaft, an engine, a first MG, a second MG, and a Ravigneaux-type planetary gear unit that includes a ring gear, a pinion, a carrier, a first sun gear, and a second sun gear. The pinion includes a first tooth portion that meshes with the ring gear and the first sun gear, and a second tooth portion that is provided at a position offset from the first tooth portion in an axial direction of the pinion and that meshes with the second sun gear. The drive device is further equipped with a first clutch that changes over a state of connection between the first sun gear and the engine, a second clutch that changes over a state of connection between the carrier and the engine, and a first brake that changes over a state of fixation of the second sun gear to a case.