How Dynamic Skip Fire Tech Can Cut V 8 Fuel Use Up To 20 Percent

DETROIT -- General Motors says a new infinitely variable cylinder deactivation system it has been developing with a Silicon Valley start-up can boost the fuel economy of gasoline engines by as much as 15 percent.

Called Dynamic Skip Fire, or DSF, the ignition system technology integrates advanced digital signal processing and software to selectively fire the engine’s spark plugs based on driver demand. DSF creates an infinitely variable cylinder deactivation system, firing only the cylinders needed to deliver the performance the driver needs.

The current generation of cylinder deactivation technology, used in GM’s V-6 and V-8 small block engines, uses electrically controlled valve lifters to turn off half the cylinders in the V-8 and two cylinders in the V-6 engine. It offers up to a 5 percent fuel economy gain. DSF can run an engine on various combinations of even and odd cylinders as needed, adding about 10 percent more fuel economy, or as much 15 percent greater fuel economy than engines without cylinder cut-off technology.

DSF is being developed by Tula Technology, Inc. The company received funding from GM Ventures LLC in 2012 for the system. GM Ventures is run by Jon Lauckner, GM vice president of global r&d.

Source : http://www.autonews.com/article/20150105/OEM06/150109992/gm-expects-15-percent-mpg-gain-from-new-cylinder-deactivation-system

Thank you for visit my website
GM expects 15% mpg gain from new cylinder deactivation system
Clever new cylinder control gives big MPG boost—and it’s ready to roll
Shoestring Living: Be grateful every day
How the new Chevy Silverado and GMC Sierra are going to shed pounds
Index sets up China shop
Top 10 deals from Best Buy’s 20 Days of Doorbusters sale
An Investor's Test Drive Of The Autonomous BEV Pitch
How ‘Regime Change’ Wars Led to Korea Crisis
Delphi, GM ready advanced cylinder deactivation
Merry Christmas Baby