THERMOSTAT DEVICE FOR MOTOR VEHICLE COOLING SYSTEM, COOLING SYSTEM FITTED WITH SUCH A THERMOSTAT DEVICE AND METHOD OF CONTROLLING A HEATING MODULE

摘要

The invention relates to a thermostat device (4) for a motor vehicle cooling system, comprising: a valve; a heat-sensitive portion, designed to cause said valve to open when the temperature of said heat-sensitive portion exceeds a temperature threshold; and a module for the controlled heating of said heat-sensitive portion, wherein the heating module is capable of producing at the most a maximum heat output. A control module (40) is designed for controlling the heating module in such a way as to limit the heat output produced by the heating module to a heat output strictly below the maximum heat output and sufficient to cause the valve to fully open. A control module (40) is designed for controlling the heating module such that said heating module produces a non-zero heat output which is not sufficient to cause the valve to open. The invention also relates to a cooling system fitted with such a thermostat device (4) and a method of controlling a heating module.