Patent ID: 6582295
Filing Date: 2003-06-24
Classification: B01D,B60H

Abstract:
A method of measuring clogging of an air filter of a system for ventilation, air conditioning, and/or heating of a passenger compartment of a motor vehicle, the method comprising:starting up an air-pumping device including an electric motor driving an air-driving rotating aerodynamic component; measuring a single characteristic value of the electric motor driving at least one rotating aerodynamic component for driving the air passing through the filter the clogging of which is being measured, in order to obtain a single measurement value; comparing the measurement value with a single calibration value in order to deduce solely therefrom a measure of the clogging of the filter, wherein said calibration value is obtained by measurement of said characteristic value of the electric motor driving a rotating aerodynamic component for driving air passing through a new filter.