The Drive for Low Emissions | Aeristech

The Drive for Low Emissions

On Road Vehicles: Aeristech & Engine Downsizing

Emissions by car

Globally, Europe leads the way in reducing vehicle emissions (such as NOx, SOx and CO2) through increasingly tough tailpipe legislation. The current set of standards, Euro 5, was introduced in September 2009 for new models (January 2011 for all models). The newly-announced standards, Euro 6, are set to be introduced in September 2014 for new models, which entail notable reductions in emission levels for light-duty vehicles.

Vehicle manufacturers have made substantial improvements already in average fuel economy and are actively pursuing many additional initiatives: lightweight materials, alternative fuels, hybridization, battery electric and fuel cell vehicles. But conventional ICE vehicles will still play a major role in the world transportation for the foreseeable future. Manufacturers continually drive towards improving petrol and diesel engine efficiency (therefore reducing NOx, SOx and CO2 emissions) and many are following the current trend of engine downsizing, as one of the most practical strategies for the near term.

Furthermore, manufacturers face an additional challenge with the likely introduction of the World-harmonized Light-duty Vehicles Test Procedure (WLTP) in replacement of the current New European Driving Cycle (NEDC), often criticized for not being representative of real driving conditions. Driving cycles are an essential element for the measurement of fuel consumption and emissions.

 

Aeristech’s technology and range of electrically driven boosting solutions, Electric Superchargers (eSuperchargers) at 12V and 48V levels, and FullElectric Electric Turbocharger Technology (FETT) will enable further extreme engine downsizing. Aeristech has indeed solved a major problem by eliminating perceived turbo lag at an affordable cost. Through its range of electric boosting devices, Aeristech offers practical opportunities to downsize engines whilst improving vehicle performance, engine efficiency and driver satisfaction.

Global Move Towards Tougher Emissions’ Legislation

Although today, emissions standards vary between countries, there is a clear worldwide trend towards tougher emissions regulations, and a common drive to significantly reduce Green House Gas (GHG) emissions from vehicle exhausts

low_emissions_graph_2011
Source: ICCT, Global Passenger Vehicle Standards, 2011

Off Highway Vehicles: Aeristech & New Emissions Legislation

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Off highway vehicles, including earth moving equipment will be subject to Tier 3b and Tier 4 emissions legislation in Europe and North America progressively from 2011, including a 20 fold reduction in particulate emissions (soot). The legislation increases the need to fit expensive filtration unless alternative solutions are available. Aeristech provides a major breakthrough in engine performance and reduced emissions for off highway use. The elimination of perceived turbo lag and the balancing of forced air to any fuel mixture substantially reduces emissions of all types at source and improves operating performance. Aeristech has been working closely with the sector to ensure manufacturers can meet the legislation whilst avoiding expensive filtration and can offer improved operating cost.

Aeristech’s high power electric supercharger (48V eSupercharger) enables a significant reduction in particulate emissions from off-highway vehicles. The ability to rapidly compress air into an engine ensures a much more complete combustion process. Legislation is driving off-highway vehicle manufacturers to reduce particulate emissions and 48V superchargers will assist vehicle manufacturers to satisfy this requirement without having to fit heavy duty filtration systems onto the exhaust, which necessarily reduce the efficiency of the operating system.

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