Development of a vehicle emissions monitoring system

Investigation of vehicle emissions with an on-board emissions measurement system can provide a better understanding of how these emissions contribute to air pollution. This paper discusses the design and development by Imperial College London and industrial collaborators of a vehicle performance and emissions monitoring system, including its installation both on test vehicles allowing an interface with the engine management system and those that do not. Results from preliminary field trials and chassis dynamometer testing of the diesel test vehicle are presented. Good correlation between the monitoring system and reference measurements is observed, with differences in aggregate measurements of between 8% and 18% over a standard test cycle. The remote download and synthesis of navigation, performance and emissions data from an in-use vehicle was successfully achieved. This project has shown that it is possible to produce a system suitable for deployment for simultaneous studies over a wide area. However, the non-standard nature of engine management system interfaces for much of the European vehicle fleet presents a significant barrier to implementation. It is therefore recommended that European legislation be enforced to ensure standard interfaces on all new vehicles.

[1]  Andre Nel,et al.  Health effects of air pollution. , 2004, The Journal of allergy and clinical immunology.

[2]  H. Frey,et al.  Quantification of Highway Vehicle Emissions Hot Spots Based upon On-Board Measurements , 2004, Journal of the Air & Waste Management Association.

[3]  G. Bishop,et al.  Emissions reductions as a result of automobile improvement. , 2003, Environmental science & technology.

[4]  Washington Y. Ochieng,et al.  A general map matching algorithm for transport telematics applications , 2003 .

[5]  H Christopher Frey,et al.  On-Road Measurement of Vehicle Tailpipe Emissions Using a Portable Instrument , 2003, Journal of the Air & Waste Management Association.

[6]  W. Ochieng,et al.  An Extended Kalman Filter Algorithm for Integrating GPS and Low Cost Dead Reckoning System Data for Vehicle Performance and Emissions Monitoring , 2003 .

[7]  Washington Y. Ochieng,et al.  Integration of GPS and dead reckoning for real-time vehicle performance and emissions monitoring , 2002 .

[8]  M. Vojtíšek-Lom,et al.  Development Of Heavy-Duty Diesel Portable, On-Board Mass Exhaust Emissions Monitoring System With NOx, CO2 And Qualitative PM Capabilities , 2001 .

[9]  Mark J. Nieuwenhuijsen,et al.  Fine particle (PM2.5) personal exposure levels in transport microenvironments, London, UK. , 2001, The Science of the total environment.

[10]  R. Colvile,et al.  The transport sector as a source of air pollution , 2001 .

[11]  W T Hung,et al.  On-Road Motor Vehicle Emissions and Fuel Consumption in Urban Driving Conditions , 2000, Journal of the Air & Waste Management Association.

[12]  Nobutaka Kihara,et al.  Real-Time On-Board Measurement of Mass Emission of NOx, Fuel Consumption, Road Load, and Engine Output for Diesel Vehicles , 2000 .

[13]  Britt A. Holmén,et al.  Characterizing the Effects of Driver Variability on Real-World Vehicle Emissions , 1998 .

[14]  I De Vlieger,et al.  On board emission and fuel consumption measurement campaign on petrol-driven passenger cars , 1997 .

[15]  A M Winer,et al.  Effects of grades and other loads on on-road emissions of hydrocarbons and carbon monoxide. , 1997, Journal of the Air & Waste Management Association.

[16]  John Gulliver,et al.  Time-space modeling of journey-time exposure to traffic-related air pollution using GIS. , 2005, Environmental research.

[17]  David Briggs,et al.  Personal exposure to particulate air pollution in transport microenvironments , 2004 .

[18]  Nagui M. Rouphail,et al.  Effect of Arterial Signalization and Level of Service on Measured Vehicle Emissions , 2003 .

[19]  Arthur M. Winer,et al.  Effects of In-Use Driving Conditions and Vehicle/Engine Operating Parameters on , 1994 .