LEFT AND RIGHT WHEEL DRIVE DEVICE

WIPO Patent Application WO/2017/145878

A1

The present invention addresses the problem of providing a left and right wheel drive device that uses a torque difference amplification mechanism, wherein the occurrence of a large turning moment is suppressed and travel as far as a repair facility or the like is made possible even when the power of one of the power sources is interrupted. This left and right wheel drive device is provided with: two electric motors (2, 3) that are mounted in a vehicle and that can be controlled independently; left and right drive wheels (4L, 4R); and a gear device (5) which is provided between the electric motors (2, 3) and the left and right drive wheels (4L, 4R) and in which two planetary gear mechanisms (10A, 10B) each configured from a sun gear (S), a planetary carrier (C), and an internal tooth gear (R), are combined on the same axis. A clutch mechanism (20), which connects or disconnects, to or from each other, output shafts (2a, 3a) through which the output of the electric motors (2, 3) is transmitted, is provided upstream from the gear device (5), and the clutch mechanism (20) disconnects rotating shafts from each other during normal travel and connects the rotating shafts to each other when the output of one of the electric motors (2, 3) is interrupted.

KARASAWA HIDENORI (JP)
HIRAI ISAO (JP)

PCT/JP2017/005392

August 31, 2017

February 15, 2017

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NTN TOYO BEARING CO LTD (JP)

F16H48/34; B60K17/02; B60K17/04; F16H48/10; F16H48/36

JP2011230755A	2011-11-17
JPH04145810A	1992-05-19
JP2015021594A	2015-02-02
JP2009144757A	2009-07-02
JP2008295173A	2008-12-04
JP2015508353A	2015-03-19
JP2015505762A	2015-02-26

TORII Kazuhisa et al. (JP)

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