Remove Exhaust Remove Fuel Economy Remove Hybrid Remove Resource
article thumbnail

CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

Green Car Congress

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The study used two fuels—an E10 and E15. SULEV30, ULEV50, ULEV70, and ULEV125).

article thumbnail

Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

Green Car Congress

Engineers at Toyota have developed an approach to applying the Atkinson cycle—used in the engines in Toyota hybrids since 1997—for engines in conventional, non-hybrid vehicles. The Atkinson cycle with a high compression ratio is a common approach that hybrid vehicle engines use to enhance thermal efficiency.

article thumbnail

ORNL researchers quantify the effect of increasing highway speed on fuel economy

Green Car Congress

This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal drop in fuel economy due to traveling 80 mph rather than 70 mph.

article thumbnail

ICCT: incremental technology can cut vehicle CO2 by half and increase fuel economy >60% through 2030 with ~5% increase in price

Green Car Congress

l/100 km) in 2016, the The ICCT team assessed increased consumer label fuel economy (as opposed to the regulatory test fuel economy) to 35 mpg (6.71 The resulting trajectory would reduce CO 2 emissions by half and increase fuel economy by more than 60% from 2016 through 2030.

article thumbnail

GM details 2016 Chevrolet Malibu Hybrid powertrain design and operation

Green Car Congress

The 2016 Chevrolet Malibu Hybrid ( earlier post ) is EPA-rated at 46 mpg (5.11 The 2016 Chevrolet Malibu Hybrid ( earlier post ) is EPA-rated at 46 mpg (5.11 At the 2016 SAE World Congress, GM engineers presented a paper describing the development of the new hybrid powertrain for the popular mid-size sedan. Click to enlarge.

article thumbnail

Honda details development of powertrain components for Accord plug-in hybrid

Green Car Congress

At SAE World Congress in Detroit, Honda engineers presented several papers on the development of the new Accord plug-in hybrid, describing work on the new gasoline engine (which will also be featured in the coming full hybrid version of the Accord), and the development of the new two-motor system. Valve train (exhaust).

Honda 296
article thumbnail

Toyota unveils new TNGA-based engines and transmissions and improved hybrid systems; deployment begins in 2017

Green Car Congress

In Japan, Toyota Motor Corporation unveiled new advanced engines and transmissions and further evolved hybrid systems based on the Toyota New Global Architecture (TNGA). Powertrain evolution targeted by TNGA, based on improving and maximizing the efficiency of powertrain systems (engines, transmissions and hybrid systems).

Toyota 150