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“We are really pleased with the results,” said Lisa Farrell, director of Cummins’ Accelerated Technology Center. “As expected, the technology is showing a lot of promise, particularly for NOx reduction that will help (fleets) meet future NOx regulations.” While netting up to a 20% uptick in fuel economy is impressive, dropping NOx is “really the driver, the emphasis of the technology,” Farrell said. R. Scott Bailey, president and CEO of Tula, said the goal of NOx reduction has kept “a significant percentage” of the company busy “working on this technology over the ...

Tula Technology hits milestone of 1M vehicles produced with Dynamic Skip Fire Tula Technology, Inc., a tech leader in improving propulsion efficiency and reducing emissions in passenger cars and commercial vehicles, announced that the one-millionth vehicle utilizing its award-winning Dynamic Skip Fire (DSF) technology (earlier post) was produced in November 2020. Unlike cylinder deactivation strategies that shut off a fixed number of cylinders, DSF makes dynamic firing decisions every 90 degrees of crank angle on a V8 (180 degrees on a 4 cylinder engine) based on how much torque is requested...