Patent ID: 6616059
Filing Date: 2003-09-09
Classification: B60H,B60K,B60L,B60W,F01P,H05K,Y02T,Y10S

Abstract:
A powertrain thermal management system for a hybrid vehicle comprising:a first cooling circuit having a first pump for circulating a coolant therein for removal of heat from a first heat source, said first heat source including at least one of an electric motor, a transmission heat exchanger, and an electronics cold plate; a second cooling circuit having a second pump for circulating a coolant therein for removal of heat from a second heat source; a heater core for providing heat to a passenger cabin of the hybrid vehicle; and valve means in fluid communication with said first cooling circuit, said second cooling circuit, and said heater core, said valve means selectively routing coolant from at least one of said first cooling circuit and said second cooling circuit to said heater core.