Author(s)

P. Bielaczyc & J. Merkisz

Abstract

Due to more stringent exhaust emission limits in the new proposed Euro Ill/Euro IV regulations, and possible new standards covering sub zero tests in Europe, work to determine the cause of emissions and the development of new technologies for the reduction in CO and HC levels on engine start-up has become very important. Following changes in the European driving cycle (deleting the 40 second idle post start-up phase), and in comparison to US FTP 75 cycle, an analysis of the influence of SI (spark-ignition) engine cold start and warm-up phases is presented in the paper The results of emission tests for CO, HC and NOx, achieved during tests performed on a chassis dynamometer following current and future ECE procedures using the bag analysi

Keywords