Modal analysis of vehicle emission factors Facteurs d'émission modaux des véhicules

https://doi.org/10.1016/0048-9697(95)04646-IGet rights and content

Abstract

This study reports on the analysis of emissions from light-duty vehicles conducted using a modal approach, which describes emissions for every single mode typical of traffic regimes (idle, constant speed, acceleration, deceleration). Base emission data were obtained from the chassis dynamometer with four driving cycles, developed with an appropriate on-road measurement campaign were performed in the Milan urban area. These were subdivided into acceleration ranges and analysed in terms of their dependence on speed, deriving relationships between emissions, speed and acceleration for pollutants typical of the traffic source (CO, VOC, NOx).

Résumé

Les émissions de véhicules particuliers, analysées suivant une approche modale pour différents régimes de traffic (ralenti, accelération, décéleration, vitesse stabilisée), font l'object de ce travaille. Les émissions ont été mesurées au banc à rouleaux suivant quatre cycles de conduite experimentaux, évalués avec des véhicules équipés, dans les parcours urbains de Milan. Les données d'émission ont été classeés en niveaux d'accéleration et analysées en dependance de la vitesse. Les relations des émissions pour trois polluants caractéristiques du traffic (CO, VOC, NOx) sont décrites en function de la vitesse et de l'accelération.

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