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Chassis Dynamometer and On-Road Evaluations of Emissions from a Diesel-Electric Hybrid Bus
Technical Paper
2017-01-0984
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Recently Hybrid Electric Buses (HEBs) have been widely used in China for energy saving and emission reduction. In order to study the real road emission performance of HEBs, the emission tests of an in-use diesel-electric hybrid bus (DHEB) are evaluated both on chassis dynamometer over China City Bus Cycles (CCBC) and on-road using Portable Emissions Measurement Systems (PEMS). The DHEB is powered by electric motor alone at speed of 0~20km/h. When the speed exceeds 20km/h, engine gets engaged rapidly and then works corporately with the electric motor to drive the bus. For chassis dynamometer test over CCBC, emissions of NOx, particulate number, particulate mass, and THC of the DHEB are 7.68g/km, 5.88E+11#/km, 0.412mg/km, and 0.062g/km, respectively. They have all decreased greatly compared to those of the diesel bus. But the CO emission which is 3.48g/km has increased significantly. Then the Real Driving Emissions (RDE) of the DHEB are compared with the dynamometer test results. Particulate and CO emissions have increased because of the higher vehicle speed and more radical acceleration and deceleration driving conditions in on-road test. But NOx emissions of RDE have decreased because of the fast light-off and higher catalytic temperature of Selective Catalytic Reduction system. In all, emissions of the DHEB have decreased significantly compared with traditional powered diesel bus. But CO emissions have increased owing to the control strategy of engine. When it comes to RDE, emissions of the DHEB are affected by the required driving power of the road conditions directly or indirectly.
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Geng, W., Lou, D., Xu, N., Tan, P. et al., "Chassis Dynamometer and On-Road Evaluations of Emissions from a Diesel-Electric Hybrid Bus," SAE Technical Paper 2017-01-0984, 2017, https://doi.org/10.4271/2017-01-0984.Data Sets - Support Documents
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References
- Daham , B. , Li , H. , Andrews , G. , Tate , J. et al. Driver Variability Influences on Real World Emissions at a Road Junction using a PEMS SAE Technical Paper 2010-01-1072 2010 10.4271/2010-01-1072
- McKain , D. , Clark , N. , Balon , T. , Moynihan , P. et al. Characterization of Emissions from Hybrid-Electric and Conventional Transit Buses SAE Technical Paper 2000-01-2011 2000 10.4271/2000-01-2011
- Barnitt , R. In-Use Performance Comparison of Hybrid Electric, CNG, and Diesel Buses at New York City Transit SAE Technical Paper 2008-01-1556 2008 10.4271/2008-01-1556
- Clark , N. , Conley , J. , Jarrett , R. , Nennelli , A. et al. Emissions Modeling of Heavy-Duty Conventional and Hybrid Electric Vehicles SAE Technical Paper 2001-01-3675 2001 10.4271/2001-01-3675
- Li M. , Nie Y. , Gao J. A Comparative Study on Emissions of Hybrid Electric Bus and Conventional Bus Automotive Engineering 32 3 193 197 2010
- Andersson , J. , May , J. , Favre , C. , Bosteels , D. et al. On-Road and Chassis Dynamometer Evaluations of Emissions from Two Euro 6 Diesel Vehicles SAE Int. J. Fuels Lubr. 7 3 919 934 2014 10.4271/2014-01-2826
- Vlachos , T. , Bonnel , P. , Perujo , A. , Weiss , M. et al. In-Use Emissions Testing with Portable Emissions Measurement Systems (PEMS) in the Current and Future European Vehicle Emissions Legislation: Overview, Underlying Principles and Expected Benefits SAE Int. J. Commer. Veh. 7 1 199 215 2014 10.4271/2014-01-1549
- Daham , B. , Li , H. , Andrews , G. , Ropkins , K. et al. Comparison of Real World Emissions in Urban Driving for Euro 1-4 Vehicles Using a PEMS SAE Technical Paper 2009-01-0941 2009 10.4271/2009-01-0941
- Johnson , K. , Durbin , T. , Cocker , D. , Miller , J. et al. On-Road Evaluation of a PEMS for Measuring Gaseous In-Use Emissions from a Heavy-Duty Diesel Vehicle SAE Int. J. Commer. Veh. 1 1 200 209 2009 10.4271/2008-01-1300
- Rubino , L. , Bonnel , P. , Carriero , M. , and Krasenbrink , A. Portable Emission Measurement System (PEMS) For Heavy Duty Diesel Vehicle PM Measurement: The European PM PEMS Program SAE Int. J. Engines 2 2 660 673 2010 10.4271/2009-24-0149
- Bougher , T. , Khalek , I. , Laroo , C. , and Bishnu , D. Determination of the PEMS Measurement Allowance for PM Emissions Regulated Under the Heavy-Duty Diesel Engine In-Use Testing Program SAE Int. J. Engines 5 3 1371 1386 2012 10.4271/2012-01-1250
- GB/T19754-2005 2005 Heavy-Duty Hybrid Electric Automotive Energy Consumption Test Methods National Standard of People’s Republic of China
- Zhou , L. Internal Combustion Engine Third Beijing China Machine Press 2010 212 220 978-7-111-31602-2
- Nie , Y. Emission Characteristics of Heavy - duty Hybrid Electric Bus Based on PEMS Master. thesis Vehicle Engineering, Wuhan University of Technology Wuhan 2011