Hybrid gearbox drive motor cooling system and control method

The invention provides a hybrid gearbox drive motor cooling system and a control method. The hybrid gearbox drive motor cooling system comprises: a drive motor used for being cooled by a cooling system; an electronic oil pump system which is used for providing power for the cooling system; an oil cooler which is used for cooling oil in the system; an oil pipeline which is used for conveying oil inthe cooling system; an oil temperature sensor which is used for collecting the oil temperature at an inlet of the hybrid gearbox and the oil temperature at the bottom of a shell of the hybrid gearbox; gearbox gear oil which is used for providing a cooling and lubricating medium for the driving motor; an HCU which is used for calculating the cooling requirement of the driving motor and the targetrotating speed of the electric oil pump and sends the target rotating speed to the MCPC to control the work of the electric oil pump according to the rotating speed. Therefore, the gearbox gear oil isadopted to provide the coo