Analysis of Transient HC, CO, NOx and CO2 Emissions from a GDI Engine using Fast Response Gas Analyzers

Peckham, Mark; Finch, Alex; Campbell, Bruce

doi:10.4271/2011-01-1227

Cited by 39 publications

(21 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is a consensus in literature that a high ignition retardation in combination with a homogeneous split mode injection strategy can be used to lower the hydrocarbon emissions during the catalyst heating phase [14][15][16][17]. An open question at this point, however, is how exactly the ignition angle should be controlled during the initial idling phase.…”

Section: Introductionmentioning

confidence: 99%

Optimal Cold-Start Control of a Gasoline Engine

2017

View full text Add to dashboard Cite

This article analyzes the influence of the ignition retardation on the fuel consumption, the cumulative tailpipe hydrocarbon emissions, and the temperature inside the three-way catalytic converter in a gasoline direct injection engine operated under idling conditions. A dedicated cylinder-individual, model-based, multivariable controller was used in experiments in order to isolate the effect of the ignition retardation on the hydrocarbon emissions as much as possible. An optimal control problem for a gasoline engine at a cold-start is formulated, which is used to interpret the experimental data obtained. The corresponding goal is to minimize the fuel consumption during an initial idling phase of a fixed duration while guaranteeing that the three-way catalytic converter reaches a sufficiently high final temperature and at the same time making sure that the cumulative hydrocarbon emissions stay below a given limit. The experimental data indicates that the engine should be operated with maximum ignition retardation in order to reach any temperature inside the three-way catalytic converter as quickly as possible concurrently with minimum tailpipe emissions and with the minimum possible fuel consumption.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimal Cold-Start Control of a Gasoline Engine

2017

View full text Add to dashboard Cite

show abstract

“…However, recent studies report that the PN concentration from SI engines increases significantly with high loads, aggressive acceleration and cold start conditions (Andersson et al, 2001;Dimou et al, 2011;Iorio et al, 2011;Peckham et al, 2011aPeckham et al, , 2011b.…”

Section: Pm Emissions From Si Enginesmentioning

confidence: 97%

“…As significant reduction of mobile source air toxic (MSAT) emissions has been achieved by the installation of a three-way catalyst (TWC) in a spark ignition engine (Cho et al, 2011;Hassaneen et al, 2009;Kwak et al, 2007;Peckham et al, 2011a;Samuel et al,;Takeda et al, 1995) as well as a diesel particulate filter (DPF) and a deNOx catalyst in common rail direct injection (CRDI) engines (Andrew et al, 2009;Austin et al, 2010;Brück et al, 2009;Czerwinski et al, 2011;Di-Penta et al, 2011;Paule et al, 2011). The introduction of higher fuel injection pressures, resulting in smaller fuel droplets, in combination with an improved engine control strategy and a DPF has greatly reduced particulate emissions from diesel engines, whereas gasoline direct injection (GDI) engines produce considerably more particles than conventional port fuel injection (PFI) ones (Basshuysen, 2009;Eastwood, 2008;Peckham et al, 2011b;Sabathil et al, 2011;Zhao, 1999).…”

Section: Introductionmentioning

confidence: 99%

Exhaust nanoparticle emissions from internal combustion engines: A review

Myung

Park

2011

Int.J Automot. Technol.

205

View full text Add to dashboard Cite

This paper reviews the particle emissions formed during the combustion process in spark ignition and diesel engine. Proposed legislation in Europe and California will impose a particle number requirement for GDI (gasoline direct injection) vehicles and will introduce the Euro 6 and LEV-III emission standards. More careful optimization for reducing particulate emission on engine hardware, fuel system, and control strategy to reduce particulate emissions will be required during cold start and warm-up phases. Because The diesel combustion inherently produces significant amounts of PM as a result of incomplete combustion around individual fuel droplets in the combustion zone, much attention has been paid to reducing particle emissions through electronic engine control, high pressure injection systems, combustion chamber design, and exhaust after-treatment technologies. In this paper, recent research and development trends to reduce the particle emissions from internal combustion engines are summarized, with a focus on PMP activity in EU, CARB and SAE papers and including both state-of-the-art light-duty vehicles and heavy-duty engines.

show abstract

“…Such measurements require a sensor system with multi-kHz measurement bandwidth, which, traditional measurement devices such as thermocouples and extractive-sampling gas analyzers are not able to provide. Even the Cambustion FastNDIR [6] series of sampling gas analyzers, with their 125 Hz maximum measurement bandwidth, are not fast enough to resolve engine dynamics that occur on crank-angle timescales [7].…”

Section: Introductionmentioning

confidence: 99%