HYBRID VEHICLE
DRIVE
August 25, 2022
A hybrid vehicle has an internal combustion engine and an electric drive, each with a cooling circuit with a heat transfer medium and a cooler. A pre-heating circuit is provided between the cooling circuits and it is thermally coupled to the cooling circuit of the electric drive via heat coupling element as a shared component, for a controlled heat exchange between the heat transfer media of the two cooling circuits. The pre-heating circuit has an electrical auxiliary heater, which is connected to the heat coupling element in series, such that the heat transfer medium of the first cooling circuit likewise flows through the electrical auxiliary heater. The electrical auxiliary heater is arranged and designed such that heat generated by the electrical auxiliary heater can be transferred, where necessary, into at least one of the two cooling circuits.
Discussion in the ATmosphere