VORRICHTUNG ZUR REGELUNG DER HEIZUNG DES KRAFTFAHRZEUGINNENRAUMES.

摘要

An electronic control unit (8) pilots, in an ON-OFF mode, a solenoid valve (7) which controls a flow of water from the engine cooling system to an exchanger (1) which transfers heat to an air flow to be admitted to the passenger compartment (6). Specifically, the control unit (8) is arranged to calculate a temperature-error parameter (A) by a predefined linear combination of the values assumed, during each calculation cycle (i) and during the immediately preceding cycle (i-1), by the difference between the measured temperature (TT) of the air output by the exchanger (1) and a reference temperature (TV.) calculated in dependence on the desired temperature set by the user. The time for which the solenoid valve (7) is opened is altered in a predetermined manner in dependence on the error parameter (A).