신개념 에어컨필터 교환 알람 시스템 연구

Recently, Cabin air filter is widely used in automotive vehicle to fulfill customer's 'well-being' demands. But survey reports show many customers feel difficulties in recognizing appropriate replacement schedule of cabin air filter which causes the performance downshift of air conditioning system. Accordingly, we studied a cabin air filter changing alarm system. HVAC conditions. driving area, and the material of cabin air filter are considered throughout this alarm system, and the analyzed results call inform the customers for the replacement schedule when dust amount of cabin air filter reaches to a set point. Test results of this system shows the detection accuracy is satisfied within 8 percents error range.