Green Car Congress

AUGUST 5, 2019

The study was conducted in 2018 by West Virginia University’s Center of Alternatives Fuels, Engines, and Emissions (CAFEE). West Virginia University’s Center for Alternative Fuels Engines and Emissions (CAFEE) completed two types of tests at different times of the year during 2018 on four Blue Bird school buses.

West Virginia 312

West Virginia Diesel Emissions Virginia 312

Green Car Congress

SEPTEMBER 18, 2015

liter, four-cylinder diesels include software (a “defeat device”) that circumvents EPA emissions standards for NO x. As described in the NOV, software installed in the electronic control module (ECM) on the affected vehicles detects when the car is undergoing official emissions testing. EPA call this software “the switch”.

EPA 150

EPA Diesel California 2015 150

Green Car Congress

JANUARY 11, 2017

From 2006 until 2013, Dorenkamp led a team of engineers that developed the first diesel engine that was designed to meet the new, tougher emissions standards in the United States. The software accomplished this by recognizing the standard published drive cycles.

United States 150

United States Diesel EPA Emissions 150