Papkin B.А. 1
Sonkin V.I. 2
Nazarov V.Е. 3
1 Federal State Educational Institution of Higher Professional Education “Moscow state university of mechanical engineering (MAMI)” (107023
2 Federal State Unitary Enterprise «Central Scientific Research Automobile and Engine Institute» (FSUE NAMI) (125438
3 «TECHNOCOMPLEKT» Technical Supply Interregional Trade Association
With the toughening of the emissions standard, a larger fraction of the total hydrocarbon emissions (up to 70-90%) from the driving cycle procedure is emitted during the cold start and warm up of the engine. Tailpipe hydrocarbon (HC) emissions during the cold start are high because the catalyst is not at its light-off temperature (about 300oC) to efficiently oxidize the HC. In this paper presented analysis cold-start and warm-up a spark ignition engine of range extender (MZU) and test results modified engine VAZ 21126 of MZU model with objective improvement startability. Selected calibration permit to half cold-start HC emissions due to rapid light-off exhaust catalyst and lower engine-out HC emissions.