BLUE HDI TECHNOLOGY - THE CLEANEST DIESEL ENGINE

PSA Peugeot Citroën is pioneer in the treatment of particulate emissions.

To eradicate even the tiniest particulates from the Diesel exhaust gases, PSA Peugeot Citroën invented the additive Diesel Particulate Filter (aDPF). Launched in world premiere on the Peugeot 607 in 2000, this aDPF was then deployed on other models from 2007, and generalized on all the Diesel vehicles Peugeot and Citroën from 2009, two years before the Euro 5 standard which made it compulsory in January 2011. The aDPF technology developed by PSA Peugeot Citroën is the most efficient one on the market today.

By mid-April 2013, more than seven million of Peugeot and Citroën vehicles had been equipped with this aDPF.

To bring NOx emissions from Diesel engines down to levels comparable to those from gasoline engines, PSA Peugeot Citroën developed a unique technology that already meets Euro 6 regulations*, with no trade-off on the inherent advantages of the Diesel engines with respect to driveability, fuel consumption and CO2 emissions.

How does the Blue HDi exhaust line work?

The Blue HDi exhaust line comprises two key subsystems:

  • A PSA Peugeot Citroën additive Diesel Particulate Filter which drastically reduces the particulate emissions by 99.9% in terms of number, whatever their size and driving conditions.

  • An SCR (Selective Catalytic Reduction) system upstream of the aDPF which reduces till 90% of the nitrogen oxides (NOx) produced by the engine.

This technology will be implemented on all new PSA Peugeot Citroën group Diesel engines from the end of 2013.

What are the user benefits of SCR technology?

SCR technology is a highly effective response to the challenge of reducing nitrogen oxides emissions, as well as leading further progress in reducing CO2 emissions (improvement of 2% to 4% with respect to Euro 5 engines).

As influencer of a sustainable mobility, PSA Peugeot Citroën has the duty to answer to the air quality and global warming challenges. With its Blue HDi technology, PSA Peugeot Citroën is able to continue to offer to its customers ever-cleaner Diesel engines, while maintaining its European leadership in low carbon emissions.

Generally speaking, the European emission standards are stricter than the US or Canadian regulations. However the NOx regulation in the State of California asks for less NOx than the Euro V norm.

Starting in 2015, the new Euro VI norm will force automakers to produce cars under 0,12 g/miles (NOx) while the 2015-2025 Californian standars will ask for a maximum of 0,16 g/miles (NOx).

Which means, the Peugeots, Citroëns, Renaults, DSs... already respects the strictest emission standards in North America.

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