发明名称 |
ELECTRIC VEHICLE DRIVING DEVICE |
摘要 |
Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion. |
申请公布号 |
EP2772665(A1) |
申请公布日期 |
2014.09.03 |
申请号 |
EP20120843885 |
申请日期 |
2012.10.24 |
申请人 |
NSK LTD. |
发明人 |
TANAKA, KAZUTAKA;INOUE, EIJI;IMANISHI, TAKASHI;MATSUDA, YASUYUKI;GUNJI, DAISUKE |
分类号 |
F16H3/66;B60K1/00;B60L15/20;H02K7/116 |
主分类号 |
F16H3/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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