Green Car Congress

MAY 9, 2012

Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fuel economy than a downsped and turbocharged configuration.

Fuel Economy 199

Fuel Economy Economy Fuel Eaton 199

Green Car Congress

MARCH 27, 2015

The final SuperTruck demonstrator ran a five-day, 312-mile (502-kilometer) roundtrip route on Texas Interstate 35 between San Antonio and Dallas, at a weight of 65,000 lbs (29,484 kg) GVWR at a speed of 65 mph (105 km/h), where it achieved an average result of 12.2 The Freightliner SuperTruck uses a downsized and downsped 10.7-liter

2009 150

2009 Engine Detroit Oregon 150

Green Car Congress

MAY 8, 2013

To achieve the target fuel economy improvement over the baseline V6 configuration, the team used GTDI technology for downsizing in combination with part-load lean homogeneous charge compression ignition (HCCI) operation for further fuel economy gains. V6 accelerates from 0-60 mph in 5.5 The project team is replacing a 3.6L improvement.

Fuel Economy 278

Fuel Economy Economy Fuel Engine 278