As the European regulation of automotive emissions is getting more stringent, great interest is growing around new solutions for future emission standards. Pollutant reduction can be achieved improving both engine out emission and aftertreatment system efficiency. Engine out emission can be reduced improving combustion process especially during warm-up, friction and the engine management system. Engine out emission reduction involves engine sophistication increasing costs, which must be accurately evaluated, especially for small displacement large mass production engine. Since, as it is well known, 80 - 90 per cent of HC and CO emissions are produced during the first 100s of NEDC cycle, great improvement could be achieved reducing the catalyst light-off time. This paper reports same preliminary results on tested configurations comparing the effect of different aging methodologies.
Emission control technologies on small cars
1999
Aufsatz (Konferenz)
Englisch
SAE Technical Papers | 1999
|British Library Conference Proceedings | 1998
|SAE Technical Papers | 1999
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