| CPC G07C 5/0816 (2013.01) [B60K 6/445 (2013.01); H02K 7/006 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); B60Y 2200/92 (2013.01); B60Y 2306/03 (2013.01); B60Y 2400/307 (2013.01); B60Y 2400/3084 (2013.01); B60Y 2400/90 (2013.01)] | 5 Claims |
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1. A vehicle comprising:
drive wheels;
an electric motor serving as a power source for driving the vehicle;
a power transmission apparatus configured to transmit a power of the electric motor toward the drive wheels;
an electric-insulation-performance determining portion configured to determine an electric insulation performance of an oil supplied to the electric motor and a lubrication required portion of the power transmission apparatus; and
a notification portion configured to notify a driver of the vehicle about the electric insulation performance of the oil which is determined by the electric-insulation-performance determining portion, wherein
the vehicle further comprises, in addition to the electric motor, an engine serving as another power source for driving the vehicle, and
in a driving state of the vehicle in which a power of the engine is distributed to the electric motor and a rotary member that is mechanically connected to the drive wheels, the electric-insulation-performance determining portion is configured to determine that the electric insulation performance of the oil is low when a torque ratio, which is calculated by dividing a sum of an estimated torque of the electric motor and an estimated torque of the rotary member by an estimated torque of the engine, is not lower than a first threshold value that is higher than 1.0.
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