| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce a loss of energy, by securing sufficient torque for driving an electric vehicle. <P>SOLUTION: An electric vehicle driving device 10 includes a first motor 11, a second motor 12, a first planetary gear mechanism 20, a second planetary gear mechanism 30, a clutch device 40, and a wheel bearing 50. The first planetary gear mechanism 20 is a single pinion type planetary gear device. The second planetary gear mechanism 30 is a double pinion type planetary gear device. The first motor 11 is connected to a first sun gear 21 and a second sun gear 31. The second motor 12 is connected to a first ring gear 24. The clutch device 40 is connected to a first carrier 23. A second carrier 33 is connected to the first ring gear 24. The first ring gear 24 is connected to the wheel bearing 50. The second carrier 33 is integrally formed with a second ring gear 34, and a rotor 12b of the second motor 12 is fixed to an outer peripheral surface. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
