주행조건별 배출가스 분석을 통한 시험 단품 failure 특성 연구

As the emission regulation is getting more stringent all over the world, the domestic emission regulation keeps up with that trend like the legislation of Cold CO Test in KULEV It requires manufacturers to do more precise and detailed analysis for emission development. During emission development, there could be some problems like EGR and O₂ sensor failure. Those failure conditions could mislead the direction of emission developing and make loss of time and test cost. We studied on exhaust emission which was caused by the effect of component failure like EGR and O₂ sensor by analyzing bag & modal emission data.