Patent ID: 7789176
Filing Date: 2010-09-07
Classification: B60H,B60L,Y02T

Abstract:
1. An electric vehicle thermal management system comprising: a refrigeration subsystem comprising a refrigerant and a heat exchanger; a first coolant loop in thermal communication with an energy storage system and in thermal communication with said heat exchanger; a heating, ventilation and cooling (HVAC) subsystem comprising a second coolant loop in thermal communication with said heat exchanger; a power train cooling subsystem, said power train cooling subsystem comprising a third coolant loop in thermal communication with a vehicle drive motor and in thermal communication with a radiator; and means for controllably and fluidly coupling said second coolant loop to said third coolant loop, wherein said means for controllably and fluidly coupling provides a means for allowing and preventing coolant fluid exchange between said second and third coolant loops.