Porsche Reduces CO2 and Pollutant Emissions

Porsche Reduces CO2 and Pollutant Emissions  
Filed under:
News, Porsche
on 03/05/2007

Source: Porsche AG

Dr. Ing. h.c. F. Porsche AG, Stuttgart, has set out to further reduce the CO2 emissions of its cars by a significant margin. As the Company announced at the Geneva Motor Show (5 – 18 March 2007), all Porsche models, starting as early as next year, will comply with the strict EU5 emission standards applicable as of September 2009, at the same time even fulfilling the currently defined limits of the EU6 standard not scheduled to take effect until September 2014. A further point announced by the company is that all Porsche engines are already able today to run on fuel with an ethanol additive. This applies both to Porsche's sports cars designed for a 10 per cent share of ethanol and to the Cayenne sports utility vehicle able to run on a fuel mixture with up to 25 per cent ethanol.

With ethanol being a so-called bio-fuel recovered from regenerating raw materials, this improves the overall balance of CO2 by a corresponding figure of approximately 10 and, respectively, 25 per cent. Porsche's Development Centre is also working on a so-called Flexible Fuel Vehicle (FFV) able to run on both gasoline alone and on a mixture of up to 85 per cent ethanol.

In its efforts to minimise fuel consumption and emissions, Porsche currently gives top priority to the introduction of a hybrid engine which the company is developing together with the Volkswagen Group and which is planned to enter the market in a further variant of the Cayenne before the end of this decade. This alternative drive concept will then reduce fuel consumption by another 30 per cent, the hybrid Cayenne thus consuming less than 9 litres of fuel on 100 kilometres (better than 31.4 mpg Imp).

Porsche plans to introduce a so-called "full hybrid" combining a gasoline combustion engine with an electric motor. Benefiting from this system, both power units can be run together and independently of one another, thus allowing three different operating modes. In this process the electric motor provides the power required not only when starting off at a moderate pace or when manoeuvring, but also when driving in, say, residential areas.

Apart from ongoing efforts to reduce fuel consumption through consistent lightweight technology and the use of innovative VarioCam Plus valve management and direct gasoline injection, the planned measures serve not only to significantly reduce CO2 emissions, but also to cut back the share of nitric oxide in exhaust emissions by fulfilling the EU5 and EU6 standards ahead of time.

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