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:
Apr. 30, 2013
Filed:
Nov. 18, 2009
Yoshiaki Yamada, Ageo, JP;
Kunihiko Hikiri, Ageo, JP;
Shuichi Nakamura, Ageo, JP;
Kouichi Itani, Ageo, JP;
Yoshiaki Yamada, Ageo, JP;
Kunihiko Hikiri, Ageo, JP;
Shuichi Nakamura, Ageo, JP;
Kouichi Itani, Ageo, JP;
UD Trucks Corporation, Saitama, JP;
Abstract
A proposition is to provide a power transmission mechanism for parallel hybrid vehicle that is capable of smoothly combining/separating input/output powers of a motor and an engine, and is applicable to a large hybrid vehicle by ensuring sufficient strength of a mechanism for combining and separating the input/output powers. It is characterized by including a motor output shaft of the motor/generator rotatable separately from an engine drive shaft system extending from a main clutch to a transmission, a motor-brake mounted on one end side of the motor output shaft to release/fix the motor output shaft, and a planetary gear mechanism mounted between another end side of the motor output shaft and the engine drive shaft system and including a sun gear provided on the other end side of the motor output shaft, an outer gear provided on the engine drive shaft system and having a gear ratio to the sun gear of 1:1, a plurality of planetary gears with which the sun gear and the outer gear are engaged, and a planetary carrier picking up orbital motions of the planetary gears, and a gear brake mounted on one end side of the planetary carrier to release/fix the planetary carrier.