To improve the stability of control during distributing driving force when giving a driving force difference to a plurality of driving wheels.
A planetary gear device 11 divides the driving force of a differential motor 1 into third driving force FS and fourth driving force FC to be output to a first driving shaft 3L and a second driving shaft 3R, respectively. A differential device 20 divides the driving force of a driving motor 2 which drives a first driving wheel 4L and a second driving wheel 4R into first driving force F1 and second driving force F2 to be output to the first driving shaft 3L and the second driving shaft 3R, respectively. Since an idler gear 13 is provided between a carrier 11C and the second driving shaft 3R, the third driving force FS and the fourth driving force FC to be transmitted to the first driving shaft 3L and the second driving shaft 3R are output so that the directions of force on the first driving shaft 3L and the second driving shaft 3R are revered.
COPYRIGHT: (C)2007,JPO&INPIT
TSUCHIDA MITSUTAKA
OKUMURA KAZUYA
YOSHISUE KANSUKE
MAEDA YOSHINORI
HOSOKAWA AKIHIRO
ITO TAKESHI
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