A liquid heating device includes: a liquid circulation circuit configured to allow circulation of antifreezing fluid therethrough; an electric heater provided in the liquid circulation circuit, the electric heater being configured to heat the antifreezing fluid circulating through the liquid circulation circuit; and a controller serving as a controlling unit configured to control output of the electric heater. The controller restricts the output of the electric heater when viscosity of the antifreezing fluid exceeds a predetermined threshold viscosity.
LIQUID HEATING DEVICE
2019-03-07
Patent
Elektronische Ressource
Englisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |