| 摘要 |
The motor cooling system of the present invention is a system for cooling a three-phase alternating current motor mounted on a vehicle as a traction motor where oil is introduced as cooling oil from driving-related equipment of the vehicle, wherein the traction motor is equipped with a stator having a neutral point, wherein when the vehicle is in a high-load driving state of driving in a state of a larger load's being applied to the traction motor than a predetermined amount, the neutral point contacts the cooling oil with a larger contact amount than when the vehicle is in a driving state of not the high-load driving state.
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