AUTOMATIC TRANSMISSION FOR ELECTRIC VEHICLE

Title:

AUTOMATIC TRANSMISSION FOR ELECTRIC VEHICLE

Document Type and Number:

WIPO Patent Application WO/2015/045771

Kind Code:

A1

Abstract:

An automatic transmission for an electric vehicle is provided with a belt type continuously variable transmission mechanism (3) in which an input unit (30P) is arranged so as to be capable of rotation relative to an input shaft (2A) and that adjusts a pulley winding radius and a clamping force by an electric actuator (80A) and a mechanical reaction force mechanism (80B, 9), a constant mesh parallel shaft geared transmission mechanism (4) that is coupled to an output unit (30S) of the belt type continuously variable transmission mechanism (3) and has a plurality of speed stages, an input gear (21) that is arranged on the input shaft (2A) so as to be capable of relative rotation and is drivably coupled to one of a plurality of transmission gears fixedly installed on an output-side shaft of the constant mesh parallel shaft geared transmission mechanism (4), and a meshing clutch mechanism (5A) that is arranged on the input shaft (2A) and selectively couples either one of the input unit (30P) of the belt type continuously variable transmission mechanism (3) or the input gear (21) to a main electric motor (1).

Inventors:

YAMADA ATSUSHI (JP)
SEGAWA TOSHIAKI (JP)
OKAMOTO TOSHIYUKI (JP)
YOKOYAMA KAZUHIKO (JP)
OGURI KAZUO (JP)
YAMAZAKI TAKUYA (JP)

Application Number:

PCT/JP2014/073280

Publication Date:

April 02, 2015

Filing Date:

September 04, 2014

Export Citation:

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Assignee:

JATCO LTD (JP)

International Classes:

F16H37/02; F16H61/00; F16H61/662

Foreign References:

JP2010261544A	2010-11-18
JP2007292140A	2007-11-08
JP2011122671A	2011-06-23
JPH06245329A	1994-09-02
JPS6037455A	1985-02-26

Other References: