Filed under: MPG, Volkswagen, Europe/EU, Videos
Volkswagen has just unveiled cylinder deactivation technology for its 1.4-liter, four-cylinder TSI engine. This represents a world first for cylinder shutoff tech adapted for use on a four-cylinder engine.
Why shut down a cylinder or two? According to VeeDub, this deactivation cuts fuel consumption by 0.4 to 1.0 liters per 100 kilometers. VW says that on the 1.4-liter TSI unit, two of the engine's four cylinders are shut down under "low to mid" load situations, meaning the cylinder deactivation works only when the 1.4 TSI spins between 1,400 and 4,000 rpm and torque lies in the range of 18 to 55 pound-feet.
The German automaker says this tech utilizes data collected from the vehicle's accelerator pedal sensor to detect momentary driving style. If the driver exhibits a nonuniform pattern - for example, while driving in roundabout traffic or aggressively shifting while blasting down an open road - the shut-off functionality is suppressed.
VW will launch its four-banger cylinder deactivation technology on production vehicles sold in Europe beginning in early 2012. Hit the jump to check out video detailing the intricacies that make VW's fuel-saving system work.
Volkswagen details world's first 4-cylinder engine with cylinder deactivation [w/video] originally appeared on AutoblogGreen on Thu, 08 Sep 2011 17:51:00 EST. Please see our terms for use of feeds.
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