Mazda to Improve Average Fuel Efficiency by 30% by 2015

Jun 24, 2008
Saeko Kushitani, Nikkei Automotive Technology
Mazda's new-generation gasoline engine concept exhibited at the 2007 Tokyo Motor Show
Mazda's new-generation gasoline engine concept exhibited at the 2007 Tokyo Motor Show
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Mazda Motor Corp announced its specific plans to reduce CO2 emissions in the fields of powertrains, vehicle bodies, plants and others.

In the sectors related to products, Mazda plans to remodel its powertrains and adopt new platforms. With these efforts, the company aims to improve the average fuel efficiency of its vehicles sold globally by 30% by 2015.

The company intends to start redesigning its gasoline engines from 2011. With the adoption of a next-generation direct fuel-injection system "DISI" and other techniques, the company aims to improve the fuel efficiency by 20%, while enhancing the dynamic performance by 15-20%.

Prior to this, Mazda will introduce an idle-stop mechanism to the market in 2009, the "Smart Idle Stop System." The System can start the vehicle more quietly and quickly, thereby improving the fuel efficiency by 7-8%, the company said. Details of the technology will be unveiled within 2008.

By employing a new-generation direct-fuel injection technology, a turbocharging system and a NOx reduction technology, Mazda plans to develop a new diesel engine with an enhanced gas emission performance and a 20% higher fuel efficiency, which is slated for release worldwide in 2011. Also, a new automatic transmission with a fuel efficiency comparable with that of a manual transmission will be released in the global market in 2011.

The company plans to introduce to the market a new gasoline rotary engine with an enhanced dynamic performance and an improved fuel efficiency, as well as a gasoline hybrid vehicle, targeting the early 2010s.

In respect to vehicle bodies, the company will launch new platforms in stages from 2011. With the new platforms, Mazda aims to reduce the weight of the vehicles by 100kg or more. The company will also make efforts to increase the number of vehicles utilizing recycling technologies and promote the commercialization of bioplastics.

Based on a coating technology called the "Three Layer Wet Paint System," which reduces VOC emissions by 45% and CO2 emissions by 15%, the company will employ a new aqueous coating technique in 2009, which can further reduce VOC emissions by 57% without increasing CO2 emissions.

In addition, the company plans to shift to a flexible production and establish a system that can maintain a higher operating ratio through a mutually complementary relationship between the plants. In this way, Mazda intends to improve the energy efficiency at its plants and reduce CO2 emissions.