Meeting the Challenge of Future Heavy-Duty Emissions Legislation without EGR or External Heating

The European Commission has indicated that Euro VII emissions legislation should be the last round of emissions legislation and should aim to ensure vehicles are compliant under all conditions. Unlike previous rounds of legislation this will be set against the background of stringent CO2 improvement requirements, so future technologies must serve to improve both emissions and fuel consumption. Ricardo examine what challenges this will introduce for engine manufacturers and what types of technologies might be adopted. A focus will be given to future exhaust aftertreatment solutions for improved real-world NOx control with minimum fuel consumption penalty. Ricardo conclude it should be possible to meet an aggressive emissions target without EGR or expensive external heating solutions.