Cooling apparatus for rotating electrical machine

A cooling apparatus for a rotating electrical machine comprising:

• an intra-axle coolant supply unit that supplies coolant into a rotation shaft of the rotating electrical machine to be mounted to a vehicle;
• a coolant discharge unit that is disposed in a position higher than the intra-axle coolant supply unit, and that pours coolant onto the rotating electrical machine by discharging the coolant, wherein the coolant to be supplied from a predetermined supply source is conducted in a predetermined distribution ratio to the intra-axle coolant supply unit and to the coolant discharge unit;
• a flow rate adjustment device that is capable of adjusting a supply flow rate of the coolant;
• and
• a control device that functions as:
• a determination device that determines upon overheating of the rotating electrical machine caused by deviating allocation of the coolant to the intra-axle coolant supply unit in an increase direction as compared to the predetermined distribution ratio;
• and
• a recovery device that controls the flow rate adjustment device to implement a recovery operation in which the supply flow rate is decreased and then elevated, when the determination device has determined that the overheating of the rotating electrical machine is occurring.