Patent ID: 8989932
Filing Date: 2015-03-24
Classification: H02K,Y02T

Abstract:
1. An electric vehicle comprising: an electric motor; an inverter that supplies electric power to the electric motor; a radiator that cools a coolant; a coolant passage configured to circulate the coolant through the electric motor, the inverter and the radiator; a coolant circulation pump provided on the coolant passage; a plurality of liquid leakage detection sensors provided in the coolant passage; a plurality of valves provided in the coolant passage; and a controller configured to close, of the plurality of valves, valves provided at two locations, between which a portion where liquid leakage has been detected by the liquid leakage detection sensors is located, and the controller is configured to drive the coolant circulation pump so that a flow direction of the coolant is periodically reversed, after closing the valves provided at the two locations, to continue to circulate the coolant through the coolant passage.