Filed under: Concept Cars, Detroit Auto Show, Sedan, Volkswagen
Cylinder deactivation is pretty easy to understand in, say, a V8 or V12, where not all the pistons need to be firing all the time. But cylinder deactivation on a four-cylinder engine? That's something new, and precisely what Volkswagen has in store for us at the 2014 Detroit Auto Show.
Variable displacement engine tech forms the backbone of the Passat BlueMotion Concept which VW is presenting in Detroit. The 1.4-liter turbocharged, direct-injection inline-four shuts down its second and third cylinders when their power is not called for, turning the four-pot into a twin and back into a four when the throttle is pressed a little closer to the floor.
VW has also fitted the Passat concept with the transmission decoupling system from the Jetta Hybrid to help it coast as freely as possible and stop/start technology. All in, VW says the Passat BlueMotion Concept can cruise down the highway yielding up to 42 miles per gallon from its otherwise conventional internal combustion engine while still offering 150 horsepower and 184 pound-feet of torque when needed. Scope out the details in the press release below for more.
VW Passat BlueMotion Concept gets strong mpg with two cylinders tied behind its back originally appeared on Autoblog on Wed, 08 Jan 2014 13:00:00 EST. Please see our terms for use of feeds.
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