Engine Exhaust Gasoline GM 
Green Car Congress
OCTOBER 16, 2012
SIDI engine. Opel revealed more details about its new mid-size gasoline engine family at the Aachen Colloquium in Germany. liter, four-cylinder, SIDI (spark ignition direct injection) ECOTEC Turbo engines, which begin Opel’s renewal of its powertrain portfolio, deliver improved fuel consumption, performance and refinement.
Green Car Congress
AUGUST 6, 2014
Graphic from GM, Edwards AMR 2014 presentation. The two projects are part of a larger multi-year DOE-funded project to develop and to apply innovative simulation strategies and tools to maximize benefits of predictive information from high performance computing (HPC) for internal combustion engines. Simulation of injector.
Green Car Congress
NOVEMBER 6, 2014
In a newly published SAE paper, a team from Ford, General Motors and AVL argues that the exclusive use of a match blending approach to prepare ethanol-gasoline blends for regulatory emissions testing “has fundamental flaws”. 2014) “Issues with T50 and T90 as Match Criteria for Ethanol-Gasoline Blends,” SAE Int. Earlier post.).
Green Car Congress
JANUARY 9, 2012
GM says the ATS will be able to deliver peak highway fuel economy of more than 30 mpg. GM is offering a choice of three power-dense engines, including two new four-cylinder units—a standard 2.5L GM is offering a choice of three power-dense engines, including two new four-cylinder units—a standard 2.5L
Green Car Congress
NOVEMBER 11, 2013
A study by a team at the Propulsion Systems Research Labs, GM R&D has concluded that the combustion instability of homogeneous charge compression ignition (HCCI) at the low-load range is caused by lack of oxygen concentration rather than lower in-cylinder mixture temperature. Earlier post.). Earlier post.).
Green Car Congress
APRIL 23, 2020
By using dDSF software to control cylinder deactivation in a diesel engine, Cummins and Tula demonstrated significant reductions in emissions and fuel consumption. Like DSF for gasoline engines, dDSF uses individual cylinder deactivation control strategies to meet torque demand at optimal fuel and aftertreatment efficiency.
Green Car Congress
NOVEMBER 8, 2015
Gasoline direct injection (GDI) is a strategy to improve fuel efficiency that is rapidly gaining market acceptance. Accordingly, there are significant research efforts—including Ford’s own—aimed at understanding how PM emissions can be reduced by engine design (e.g., Ford and GM, will account for 11.5–13.5%
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