Patent ID: 11859701
Assignee: KIA CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A powertrain for an electric vehicle, the powertrain comprising:
a planetary gear including a first rotating element, a second rotating element and a third rotating element, where the first rotating element is connected to a first shaft, the second rotating element is connected to a second shaft, and the third rotating element is selectively connected to a transmission housing;
a first motor configured to supply power to the first shaft at all times; and
a second motor configured to selectively supply power to the first shaft and the second shaft,
wherein two rotating elements among the first, second, third rotating elements of the planetary gear are selectively connected to integrally rotate the entire planetary gear,
wherein:
a seventh gear is connected to the first shaft in a restrained state;
an eighth gear is connected to the second shaft in a restrained state;
a ninth gear in external engagement with the seventh gear and a tenth gear in external engagement with the eighth gear are installed coaxially with each other; and
the second motor is installed to be connectable to the first shaft and the second shaft via a second shift assembly installed between the ninth gear and the tenth gear.