This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Investigating the engine behavior of a hybrid vehicle and its impact on regulated emissions during on-road testing.
Technical Paper
2019-01-2199
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
This paper presents the emissions results and operational behavior of two hybrid vehicles over EU legislative Real Driving Emissions (RDE) and other on-road testing cycles. The behavior of one hybrid vehicle during real world driving is investigated, including analyses of air-fuel ratio and catalyst temperature changes, in order to elucidate the reasons for the emissions results seen in the other hybrid vehicle over an RDE cycle. It was observed that the catalyst cooled down over time when the hybrid vehicle SI (Spark Ignition) engine was turned off, meaning that when the engine restarted the catalyst efficiency was decreased until it was able to light-off once again. This leads to increases in the tailpipe emissions of CO, NOx and hydrocarbons after the engine restarts. In addition to this problem, the engine restarts demanded fuel enrichment, which resulted in incomplete combustion and further increases in CO and PN emissions. Finally, the rate of catalyst temperature decrease during engine-off and increase during engine start/restart were also investigated and quantified for one of the hybrid vehicles.
Recommended Content
Authors
Topic
Citation
Thomas, D., Li, H., Ropkins, K., Wang, X. et al., "Investigating the engine behavior of a hybrid vehicle and its impact on regulated emissions during on-road testing.," SAE Technical Paper 2019-01-2199, 2019, https://doi.org/10.4271/2019-01-2199.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Conger , M. and B.A. Holmén Characterization of Real-World Particle Number Emissions During Reignition Events from a 2010 Light-Duty Hybrid Electric Vehicle. Transportation Research Record: Journal of the Transportation Research Board 2015 2503 137 146
- Yang , Z. , et al. Real driving particle number (PN) emissions from China-6 compliant PFI and GDI hybrid electrical vehicles. Atmospheric Environment 2018 199 70 79
- Hannan , M.A. , F.A. Azidin , and A. Mohamed Hybrid electric vehicles and their challenges: A review. Renewable and Sustainable Energy Reviews 2014 29 135 150
- Duarte , G.O. , et al. Effect of battery state of charge on fuel use and pollutant emissions of a full hybrid electric light duty vehicle. Journal of Power Sources 2014 246 377 386
- Wu , X. , et al. on-road measurement of gaseous emissions and fuel consumption for two hybrid electric vehicles in Macao. Atmospheric Pollution Research 2015 6 5 858 866
- Robinson , M.K. and B.A. Holmén Onboard, Real- World Second-by-Second Particle Number Emissions from 2010 Hybrid and Comparable Conventional Vehicles. Transportation Research Record: Journal of the Transportation Research Board 2011 2233 1 63 71
- European Commission Commission Regulation (EU) 2017/1151. Official Journal of the European Union 2017
- Andrews , G.E. , et al. The Use of a Water/Lube Oil Heat Exchanger and Enhanced Cooling Water Heating to Increase Water and Lube Oil Heating Rates in Passenger Cars for Reduced Fuel Consumption and CO 2 Emissions During Cold Start. JSAE 2007
- Li , H. , et al. Study of thermal characteristics, fuel consumption and emissions during cold start using an on-board measuring method for SI car real world urban driving. JSAE 2007 SAE 2007-01-2065
- Li , H. , et al. Comparisons of the Exhaust Emissions for Different Generations of SI Cars under Real World Urban Driving Conditions. JSAE 2008 SAE 2008-01-0754