대형차대 및 엔진동력계에서의 시험모드에 따른 배출가스 특성 비교 연구

In worldwide, emission certification tests of heavy-duty vehicles are performed on engine dynamometer. However, it must uninstall engines and can't reflect on actual driving characteristics. On the other hand, chassis dynamometer can perform the testing without time and cost of un installing engines, and simulate actual driving patterns of vehicle on road. In this study, exhaust emissions of urban of going presently round bus was measured on heavy-duty chassis dynamometer. And for review of the results on chassis dynamometer, engine test results on engine dynamometer were compared and analyzed.