Automotive air conditioning device having an air filter of the vehicle-air-conditioner, a humidity sensor with air filter, as well as the operating method of the in-vehicle air-conditioning system

摘要

An air filter, which is intended for installation in an air conditioning system of a vehicle and which exhibits a moisture sensor, is disposed on or at the air filter. The moisture sensor is a component of an electric circuit section, which is arranged on or at the air filter. The moisture sensor is a capacitive sensor, whose capacitance depends on the moisture loading of the air, flowing around the sensor. At least one electric property of the electric circuit section represents the moisture loading on the air filter and the type of air filter.