CPC F16H 57/0476 (2013.01) [B60K 6/22 (2013.01); F16H 57/0413 (2013.01); F16H 57/0435 (2013.01); F16H 57/0436 (2013.01); F16H 57/0473 (2013.01); B60K 2001/003 (2013.01)] | 15 Claims |
1. A powertrain-cooling system of a vehicle, the powertrain-cooling system comprising:
an electric oil pump;
a pressure control valve including an input port receiving a fluid discharged from the electric oil pump, an output port outputting the fluid to a transmission while adjusting a pressure of the fluid, and a drain port discharging a portion of the fluid according to adjustment of the pressure of the fluid;
a first motor cooling path connecting the drain port of the pressure control valve to a first motor forming a hybrid powertrain; and
a controller electrically connected to the electric oil pump and configured for controlling the electric oil pump to cool the transmission and the first motor,
wherein the transmission is provided with a second motor forming the hybrid powertrain,
wherein an engine clutch is mounted between the first motor and the second motor, and
wherein a flow rate control device is connected to the output port of the pressure control valve to control a state in which a portion of the fluid which is supplied from the pressure control valve to the transmission is supplied to the second motor and the engine clutch.
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