Patent ID: 8191662

Claim:
A heating device for a crankcase ventilation system in a hybrid vehicle, comprising: a ventilation device operatively configured for a crankcase; a supercooling cycle operatively configured for circulating a supercooling cycle coolant in proximity to power electronics for an electric motor for cooling the power electronics; a cooling subcycle for circulating a subcycle coolant in proximity to the ventilation device for heating the ventilation device; and a mixing device coupled to the supercooling cycle and to the cooling subcycle so that heat from the supercooling cycle coolant heats the subcycle coolant, temperature sensors in the supercooling cycle and in the ventilation device, a temperature control unit connected to the temperature sensors and to the mixing device, wherein the ventilation device is heatable via the supercooling cycle to prevent icing of the ventilation device and wherein the supercooling cycle coolant flow rate through the supercooling cycle and the subcycle coolant flow rate through the subcycle are controllable by the temperature control unit based on temperatures sensed by the temperature sensors.