2017 Downsizing Engine Study 
Green Car Congress
FEBRUARY 22, 2018
Their study is publishedin the ACS journal Environmental Science & Technology. Although GDI vehicles offer the potential of improved fuel economy, less fuel pumping, and charge air cooling, they tend to produce higher particulate matter (PM) emissions when compared with the traditional port fuel injection engines. —Yang et al.
Green Car Congress
OCTOBER 16, 2013
GDI is a strategy to improve fuel efficiency that is rapidly gaining market acceptance, as illustrated by the popularity of Ford’s GDI EcoBoost engines. The EU has already set a standard for 6 × 10 12 number/km limits between 2014 and 2017, tightening to 6 × 10 11 number/km.). Credit: ACS, Maricq et al. Click to enlarge. Earlier post.)
Green Car Congress
SEPTEMBER 11, 2015
Bosch is leading a consortium in a German government-funded project to develop a direct injection system for monovalent natural gas engines—i.e., engines that run exclusively on CNG. Today’s CNG vehicles are generally bivalent, running on gasoline and CNG with engines designed for gasoline direct injection.
Green Car Congress
APRIL 27, 2010
The Lotus Engineering 2020 lightweight Toyota Venza. Lotus Engineering has conducted a detailed study to develop a commercially viable mass reduction strategy for mainstream passenger vehicles. That philosophy has always been core to Lotus’ approach to vehicle engineering and is now more relevant than ever.
Green Car Congress
APRIL 6, 2017
Improving battery power to such as level would further enable hybridization to near-HEV levels as well as engine downsizing, thereby enabling fuel economy improvements beyond the current 10-15% MHEV limit. Current MHEV systems typically consist of an engine coupled to a belt-integrated starter generator (BISG). Abdellahi et al.
Green Car Congress
MAY 31, 2018
Dearman’s liquid nitrogen-powered engine ( earlier post ) is zero emission. The technology will replace diesel-powered secondary engines used to power (TRUs), which are used to keep food cold on the road. Studies have suggested that delivering at night, when there is less congestion, can reduce fleet CO 2 emissions by up to 30%.
Green Car Congress
JANUARY 14, 2014
liter EA888 Gen3 engine featured in Audi’s all-road shooting brake plug-in hybrid concept unveiled at the North American International Auto Show this week ( earlier post ) features—as does its production ilk—a dual injection system that combines direct injection with indirect injection into the intake manifold. Credit: Audi.
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