Patent ID: 6239502
Filing Date: 2001-05-29
Classification: B60K,B60L,B60W,F01P,H02K,H05K,Y02T

Abstract:
A vehicle including:an electric traction drive machine;a source of electrical energy:an electrical device which receives fluctuating amounts of electrical energy from one of said traction drive machine and said source of electrical energy, and which is heated by said electrical energy, and which if not cooled may be damaged;a cooling system thermally coupled to said electrical device for cooling said electrical device by transfer of heat to the environment, said cooling system being dimensioned for transferring an average amount of the heat arising from said electrical energy, but not the peaks of said fluctuating amount; andphase-change heat storage material thermally coupled to said electrical device and to said cooling system, for absorbing excess heat from said electrical device during said peaks, and for transferring stored heat to said cooling system at times other than the times of said peaks.