System and method for controlling an electric heating element equipped with a motor vehicle
A motor vehicle, electric heating technology, applied to electrical components, vehicle parts, heating/cooling equipment, etc., can solve difficult management problems
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[0025] A control system 1 of an electric heating unit of a motor vehicle comprises a power limiting device 2 and a temperature regulating device 3 . These two means cooperate to determine the control signals intended for the electric heating unit. "Electric heating unit" means any device capable of heating a heat transfer fluid, such as air or a stream of liquid, in order to generate air for heating the passenger compartment of a motor vehicle. Among these heating units, mention is made in particular of positive temperature coefficient devices comprising ceramics that become hot when electric current is applied. The control signal takes into account a temperature measurement of the heat transfer fluid of the electric heating unit, a temperature set point of the heat transfer fluid of the electric heating unit, a power measurement of the electric heating unit, and an authorized power level of the electric heating unit. figure 1 , 2 and 5 illustrate various embodiments of the ...
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