전기히터 내장 삼원촉매 코팅 매연여과필터를 이용한 하이브리드 가솔린 엔진의 WLTC 배출가스 저감 연구 = Reduction of WLTC Emissions of Hybrid Gasoline Engine by Using an Electric Heater Embedded and Three-Way Catalyst Coated Particulate Filter

다국어 초록 (Multilingual Abstract)

To reduce the exhaust emission of cold starts from hybrid gasoline engines, a new type of EH-cGPF(Electric Heater embedded and catalyst coated GPF) was developed and evaluated. In the proposed EH-cGPF, an electric heater is embedded within a three-way catalyst coated particulate filter. In this study, the exhaust emissions of an HEV vehicle equipped with EH-cGPF were measured in a chassis dynamometer under room temperature(20 oC) and low temperature (-7 oC) conditions with WLTC. For the WLTC test under room temperature conditions, electric heating began 30 seconds before starting the engine, and it stopped 60 seconds later, confirming that EURO-6 emission standards were met.
Furthermore, in the low-temperature WLTC test of -7 oC, electric heating started 90 seconds before starting the engine, and it stopped 60 seconds later, also proving that EURO-6 emission standards were satisfied.