Patent ID: 11946541
Assignee: KIA CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B  Y | IPC F

Claim 9:
10. A powertrain apparatus comprising:
a transmission portion;
a motor portion fluidically connected to the transmission portion through a return hole;
an electric oil pump (EOP) mounted on the transmission portion, wherein an oil intake port of the EOP is provided at a lower side of an internal space of the transmission portion, wherein the EOP pumps oil into the oil intake port to supply the oil to the motor portion and the oil which has cooled and lubricated the motor portion returns to the transmission portion through the return hole; and
a controller electrically connected to the EOP, and configured for:
determining, while a vehicle is running, whether an oil sloshing phenomenon occurs in the powertrain apparatus; and
reducing, revolutions per minute (RPM) of the EOP by a predetermined reduced RPM when the controller determines that the oil sloshing phenomenon occurs.