发明名称 |
Driving Device for Rear Wheels of Four Wheel Driving Electric Vehicle |
摘要 |
Provided is a driving device for rear wheels of a 4 wheel driving electric vehicle, which can minimize a loss in the drive power during 4-wheel by transmitting the drive power to the rear wheels based on a disconnector input shaft, rather than a clutch, after synchronizing a rotating speed of the disconnector input shaft based on a first motor with a rotating speed of a hub based on rear wheels. Other aspects of the present invention provide a driving device for rear wheels of a 4 wheel driving electric vehicle, which can prevent a loss in the drive power during 2-wheel driving by preventing a load based on a differential device from being generated by connecting the differential device between a reduction gear group and the disconnector input shaft. |
申请公布号 |
US2015133263(A1) |
申请公布日期 |
2015.05.14 |
申请号 |
US201314080100 |
申请日期 |
2013.11.14 |
申请人 |
Hyundai Wia Corporation |
发明人 |
Choi Hong Kyu |
分类号 |
B60K1/02;B60W10/119;B60W10/08 |
主分类号 |
B60K1/02 |
代理机构 |
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代理人 |
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主权项 |
1. A driving device for rear wheels of a 4 wheel driving electric vehicle, the driving device comprising:
a first motor for generating rotational power; a motor inner shaft installed within the first motor while passing through the first motor and having one end connected to the rear wheels; a reduction gear group connected to the first motor; a differential device including a right differential gear connected to the motor inner shaft and a differential case connected to the reduction gear group; a disconnector input shaft having one end connected to a left differential gear of the differential device and the other end connected to or disconnected from a hub; a wheel speed sensor sensing a wheel rotating speed; a controller outputting a signal for connecting the disconnector input shaft to the hub; a motor driver connected to the controller; a second motor connected to the motor driver; a shift fork connected to the second motor; and a sleeve connected to the shift fork and connecting/disconnecting the disconnector input shaft and the hub to/from each other. |
地址 |
Gyeongsangnam-do KP |