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1. Regulatory testing procedures
The pollutants emitted by vehicles, and by internal combustion engines in general, are becoming increasingly stringent. To this end, various test procedures have been defined. Of course, vehicle emissions are regulated at the tailpipe, and we can either measure vehicle emissions as a whole (vehicle), or evaluate the engine alone. Most of the time, these measurements are carried out at ambient temperature, but with the advent of after-treatment systems, the notion of catalyst activation time has become fundamental. It is estimated that around 80% of CO and HC are emitted when the catalyst is not yet activated. To the procedures carried out at room temperature, a procedure with measurements at – 7 °C has been added.
Initially, the standards were aimed primarily at new vehicles, but the notion of durability was introduced, with checks carried out after a certain number...
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Regulatory testing procedures
Bibliography
- (1) - GIEC - IPCC Second Assessment – Climate Change 1995. - (1995) http://www.ipcc.ch/pub/sa(F).pdf
- (2) - DEGOBERT (P.) - Automobile et pollution. - Éditions...
Websites
EPA – Federal Register electronic version http://www.epa.gov/docs/fedrgstr/EPA-AIR/ , consulted on 15/01/2009
Delphi2008 Passenger Cars & Light Duty Trucks and 2008 Heavy Duty & Off-Road Vehicles https://www.delphiautoparts.com/fra/fr
...Regulations
Council Directive 70/156/EEC of February 6, 1970 on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers, OJ n° L 042 of February 23, 1970 p. 0001-0015.
Council Directive 70/220/EEC of March 20, 1970 on the approximation of the laws of the Member States relating to measures to be taken against air pollution by gases from positive-ignition...
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