Emissions of hydrocarbons from evaporation of fuel. Regulation and test methods. Ways to ensure future requirements

Abstract

Stricter requirements for hydrocarbon emissions both from the vehicle as a whole and from the fuel system are a necessary measure to preserve the environment. Hydrocarbon emissions from fuel vapors from vehicles equipped with spark ignition engines are determined and regulated in accordance with «Uniform provisions concerning the approval of vehicles with regard to the emission of pollutants according to engine fuel requirements» in Europe and the California evaporative emission standards and test procedures for 2001 and subsequent model motor vehicles (Amended: September 2, 2015) in the United States. To meet the promising standards for fuel vapor emissions from the fuel system, vehicle manufacturers use special designs and manufacturing technologies for fuel systems. The automotive industry as a whole is committed to minimizing emissions and making driving environmentally sound, both in the short and long term.