20.500.12556/DKUM-57612 Vpliv kontrolne enote in modela zgorevanja na tranzietno delovanje motorja Influence of engine control unit and combustion model on transient behavior of engine Ena izmed glavnih težav osebnega dizelskega vozila so emisije in prav na tem področju se v bližnji prihodnosti obetajo morebitne spremembe. Zaradi visokih stroškov razvoja novih sistemov je sprva smiselno preveriti možnost zmanjšanja emisij zgolj s kontrolno enoto motorja. Tako je glavna ideja magistrskega dela prikaz izboljšanja izpusta emisij NOx pri hladnem zagonu, kjer je pretvorba emisij zaradi nizke temperature katalizatorja najslabša. Prikazano je, da lahko z zamikom vbrizga in vbrizganjem ogljikovodikov pred katalizator zmanjšamo izpust NOx pri hladnem zagonu z zgolj nekoliko povišano porabo goriva. One of the main issues of diesel passenger car are emissions and in the near future a lot of changes are expected in this area. Due to high costs of developing new systems it makes sense to investigate possibility to reduce emissions only with modifications of engine control unit. The main idea of the thesis is to show improvement of NOx emissions during cold start, where conversion is not sufficient due to low temperature of catalyst. It is shown that with injection delay and injection of hydrocarbons before catalyst it is possible to reduce NOx emission with slightly increased fuel consumption. EGR emisije SCR UREA NEDC NOx EGR emissions SCR URE NEDC NOx true true false [A. Cvikl] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2016-03-02 13:44:34 2016-03-31 11:47:19 2022-06-14 03:06:47 2021-05-16 03:24:08 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.436.068.7(043.2) 19549462 URN:SI:UM:DK:11ONTACB MAG_Cvikl_Ales_2016.pdf MAG_Cvikl_Ales_2016.pdf 1 3286E1D0C16BD36648143AF06C074850 382c915bc4c4225b3599518ecce546ea8ef0a93e0ce46cb25fa993391fdf5f70 02babd93-7c0c-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=87734 Fakulteta za strojništvo 0 0 0