Patent ID: 11927253
Assignee: HYUNDAI MOTOR COMPANY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 7:
8. A powertrain for an electric vehicle, the powertrain comprising:
a planetary gear having a first rotating element, a second rotating element, and a third rotating element, wherein the first rotating element is connected to a first shaft and the second rotating element is connected to a second shaft;
a first motor configured to selectively supply power to the first shaft at two or more gear ratios;
a first shift assembly configured to transfer power of the first motor to the first shaft through one of two or more external engagement gear trains having different gear ratios; and
a second motor configured to selectively supply power to the first shaft and configured to selectively supply power to the second shaft while bypassing supply of power to the first shaft,
wherein:
the first shift assembly includes a gear engagement unit, a hub and a sleeve of which are provided on a rotating shaft of the first motor;
a first gear and a second gear are rotatably provided on both sides of the hub, respectively; and
each of a third gear in external engagement with the first gear and a fourth gear in external engagement with the second gear is disposed on the first shaft such that rotation of the third gear and the fourth gear is restrained.