Emission Tests In City Buses Under
Real Road Conditions
Author(s)
J. Merkisz, M. Idzior, J. Pielecha & W. Gis
Abstract
The paper presents the results of real road emission measurements performed
under real traffic conditions in the city of Poznan. The tests were carried out in
the morning and afternoon hours. The conditions were pre-selected so as to
ensure the highest possible reflection of the actual traffic conditions: passenger
count on a given bus route that would reflect typical parameters for the Poznan
routes. The tests were carried out over a period of two days (Friday, Saturday)
characteristic of a very small and very high passenger count and high and
medium traffic congestion. The objects of the tests were the buses manufactured
by Solaris: one of the vehicles was fitted with a hybrid engine (Hybrid H18) and
the other operated on a conventional drive train. The buses were selected based
on their similarities in terms of passenger capacity and length. They were
selected to enable a comparison of their functionality and environment
friendliness under real road conditions (the engines complied with the Euro V
standard).
Keywords: emissions, diesel engine bus, hybrid bus, real road conditions.
1 Introduction
European emission regulations for heavy-duty vehicles, contained in directive
1999/96/EC are commonly known as Euro I through V standards. Since October
2005 all homologation vehicles and since October 2006 all newly registered
Heavy Duty Diesel vehicles – including buses – have had to comply with the
Euro IV emission standard. Further standards such as Euro V will become
binding from October 2008 and 2009 respectively. Another directive
2005/55/WE adopted in 2005 introduces an additional standard of EEV
Keywords
emissions, diesel engine bus, hybrid bus, real road conditions
Related Book
Other papers in this volume
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