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EPA fuel economy report finds weight and power leveling off, footprint stable

Green Car Congress

EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends. The report is the authoritative reference for real-world fuel economy, technology trends and tailpipe carbon dioxide emissions, for new personal vehicles sold in the US every year since 1975.

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Mazda announces SKYACTIV-X: gasoline Spark Controlled Compression Ignition

Green Car Congress

Mazda Motor Corporation announced “Sustainable Zoom-Zoom 2030,” a new long-term vision for technology development that looks ahead to the year 2030. Compression ignition combined with a supercharger will improve fuel economy while delivering tremendous engine response and increased torque of 10–30% over the current SKYACTIV-G gasoline engine.

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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

Green Car Congress

MY 2012 adjusted fuel economy is 23.6 mpg fuel economy improvement from MY 2011 to MY 2012 is the second largest annual improvement in the last 30 years. l/100 km) fuel economy, which, if achieved, will again represent all-time records. Click to enlarge. l/100 km), which is 1.2 mpg, or 22%. Click to enlarge.

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Mazda unveiling KAI Concept with SKYACTIV-X SPCCI engine; more details on the technology

Green Car Congress

At the Tokyo Motor Show, Mazda is introducing the KAI CONCEPT compact hatchback ( earlier post ), powered by the next-generation SKYACTIV-X spark-controlled compression-ignition (SPCCI) gasoline engine ( earlier post ), SKYACTIV-Vehicle Architecture and a more mature expression of the KODO design language. Earlier post.).

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2011 edition of EPA Fuel Economy Trends report shows several advanced powertrain technologies making significant gains

Green Car Congress

Fuel economy improvements for the hybrid vehicles vary considerably from 5-10% for the larger, luxury hybrid vehicles to more than 40%. Fuel economy improvements for diesels range from 15% to 30% relative to gasoline counterparts. Compared to MY 1987, MY 2010 CO 2 emissions were 11 g/mi (3%) lower, and fuel economy was 0.6

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Toyota and Mazda Agree to Hybrid System Technology License; Mazda to Apply in SKY Engine-Based Hybrid for 2013

Green Car Congress

Toyota Motor Corporation (TMC) and Mazda Motor Corporation (Mazda) have reached an agreement on the supply by Toyota under license to Mazda of the hybrid system technology used in the Toyota Prius. Mazda is aiming to commence sales of a hybrid vehicle starting in Japan by 2013. Earlier post.). Power split device.

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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

Green Car Congress

Mazda’s roadmap to the ideal internal combustion engine. This corresponds to a 23% reduction in fuel consumption and, therefore, CO 2 output.). From a powertrain frame of reference, Mazda is planning a building block strategy—i.e., SKYACTIV at Powertrains, Fuels & Lubes. Click to enlarge.

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