The Swatch Group Management Services Ag

Rainer Sonntag

Robert Apter

A combined system for cooling drive units and for heating the inner space of a hybrid vehicle comprises a cooling circuit, in which are connected in series an internal combustion engine, a thermostat valve, a cooler and an electrovalve. The system comprises a cooler bypass in which are arranged an electric heater and a heat exchanger for heating the inner space of the vehicle. According to the mode of operation of the hybrid vehicle, the heat exchanger (,) may take up heat from the internal combustion engine or from the electric heater (,), wherein, in the electric operating mode, i.e. with the internal combustion engine not running, for the purpose of keeping the heat losses low, an uncoupling of the internal combustion engine and cooler (,) from the heat exchanger (,) is made possible by means of the thermostat valve and electrovalve.

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Pfaffnau, Switzerland

Rainer Sonntag