Title: Alternative short tests for inspection and maintenance of in-use cars with respect to their emissions performance

Authors: Zissis Samaras, Theodoros Zachariadis, Robert Joumard, Isabelle Vernet, Dieter Hassel, Franz-Josef Weber, Rudolf Rijkeboer

Addresses: Department of Mechanical Engineering, Aristotle University, 54006 Thessaloniki, Greece. Department of Mechanical Engineering, Aristotle University, 54006 Thessaloniki, Greece. INRETS/LEN, Case 24, 69675 Bron, Cedex, France. INRETS/LEN, Case 24, 69675 Bron, Cedex, France. TUV Rheinland, Sicherheit & Umweltschutz, 51101 Koln, Germany. TUV Rheinland, Sicherheit & Umweltschutz, 51101 Koln, Germany. TNO-WT, PO Box 6033, 2600 JA Delft, The Netherlands.

Abstract: This paper presents the first results of a project aimed at evaluation of a number of short tests that can be alternatively used for Inspection and Maintenance of in-use cars emissions performance. For this purpose, a large number of in-use cars from four European countries were tested according to a test protocol that included a wide selection of short tests (idle and fast idle tests, a steady-state loaded test and short transient loaded tests), in addition to the legislated New European Driving Cycle and a number of real-world cycles. The test results were statistically analysed in a number of different combinations, with the objective to define a set of reasonable cutpoints, taking into account various criteria such as errors of commission, errors of omission, excess emitter identification rate and excess emission identification rate.

Keywords: exhaust emissions; inspection; legislation; maintenance; short cycles.

DOI: 10.1504/IJVD.1998.001837

International Journal of Vehicle Design, 1998 Vol.20 No.1/2/3/4, pp.292-303

Published online: 18 Aug 2003 *

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