Green Car Congress

JANUARY 5, 2015

Drive cycle fuel economy for PFI, CDC, and multi-mode RCCI operation. Among their findings were that multi-mode RCCI has the potential to offer greater than 15% fuel economy improvement over a 2009 gasoline PFI baseline over many light-duty driving cycles, despite the lack of complete drive cycle coverage for RCCI mode.

Fuel Economy 150

Fuel Economy Economy Light Fuel 150

Green Car Congress

AUGUST 3, 2009

Researchers at the University of Wisconsin, led by Dr. Rolf Reitz, are investigating a blended dual-fuel (gasoline and diesel) concept to extend the operating range of partially premixed charge compression ignition combustion by using the varying fuel reactivity of the charge blend, which is determined in real time. Click to enlarge.

Wisconsin 225

Wisconsin Gasoline Diesel Universal 225

Green Car Congress

JUNE 29, 2013

Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3% Earlier post.). —Kokjohn and Reitz. Sage L Kokjohn and Rolf D.

Light 207

Light Engine Wisconsin Fuel Economy 207

Green Car Congress

NOVEMBER 24, 2015

The unthrottled nature of the compression ignition process provides high engine efficiency while achieving compliant exhaust emissions with conventional, low-cost aftertreatment. Although Achates’s work to date has been with diesel, its fundamental approach is suited for advanced combustion regimes using other fuels as well.

Gasoline 150

Gasoline Engine Powered Power 150

Green Car Congress

MAY 4, 2009

The research projects will contribute to the development of high efficiency internal combustion engines with the goals of improving fuel economies by 20-40% in light-duty vehicles and attaining 55% brake thermal efficiency in heavy-duty engine systems.

Emissions 150

Emissions Wisconsin Michigan Houston 150

Green Car Congress

AUGUST 10, 2011

Wisconsin Engine Research Consultants LLC. This project will optimize fuel-based control of novel combustion strategies in light- and heavy-duty vehicles to enable diesel-like efficiencies with ultra-low engine-out emissions. valve train vs. bearings). 1,497,531. $1,200,000. UChicago Argonne LLC. Grantee Description. GMZ Energy, Inc.

Carbon Fiber 268

Carbon Fiber Lithium Ion Li-ion Vehicles 268

Green Car Congress

APRIL 29, 2013

In a paper presented at the 2013 SAE World Congress, a team from the University of Wisconsin reported a gross indicated thermal efficiency of Reactivity Controlled Compression Ignition (RCCI) operation of near 60%, given optimized combustion management and thermodynamic conditions. Earlier post.). The 60% study.

Wisconsin 309

Wisconsin Congress 2013 Fuel 309