VEHICULAR DRIVE TRANSMISSION DEVICE

WIPO Patent Application WO/2021/039134

A1

According to the present invention, a counter gear mechanism (31) is provided with: a fifth gear (G5) meshing with a third gear (G3); a sixth gear (G6) meshing with a fourth gear (G4); and a seventh gear (G7) meshing with a differential input gear (GD). The seventh gear (G7) is disposed between the fifth gear (G5) and the sixth gear (G6) in an axial direction (L). A switching mechanism (51), which switches between a state in which the third gear (G3) is connected to a second input member (13), a state in which the fourth gear (G4) is connected to the second input member (13), and a state in which the third gear (G3) and the fourth gear (G4) are separated from the second input member (13), is configured to be disposed between the third gear (G3) and the fourth gear (G4) in the axial direction (L). Due to the configuration above, it becomes possible to achieve the reduction in axial dimension of the entire device when a switching mechanism is provided that switches the gear ratio between a second input member and an output member connected to and driven by an internal combustion engine.

WO/2016/112651	TRANSMISSION UNIT, POWER TRANSMISSION SYSTEM AND VEHICLE COMPRISING THE SAME
JP6481193	Electric vehicle
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KAWAMOTO MASAKI (JP)
ICHIOKA MITSUHIRO (JP)
YAMAMOTO TOMOKA (JP)
INOUE AKIRA (JP)
KATO HIROSHI (JP)

PCT/JP2020/026536

March 04, 2021

July 07, 2020

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AISIN AW CO (JP)

B60K6/36; B60K6/40; B60K6/442; B60K6/547; B60K17/04; B60K17/16; F16H1/06

WO2016194172A1	2016-12-08
WO2017217065A1	2017-12-21

JP2017222197A	2017-12-21
JPH11254982A	1999-09-21
JP2017222197A	2017-12-21

See also references of EP 3988363A4

R&C IP LAW FIRM (JP)

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