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VWs 1.4 TSI engines to gain cylinder deactivation technology

By SYF77 on 11 Sep 2011

Attached Image: 2010_engine_of_the_year.jpg

Volkswagen will debut cylinder deactivation (cylinder shut-off) technology in the new 1.4-liter TSI turbocharged, direct-injection engine beginning in 2012. Volkswagen will be the first carmaker to implement this technology in a turbocharged four-cylinder engine in large-scale production. The primary goal of the system is to reduce significantly fuel consumption by temporarily shutting off two of the four cylinders (cylinders 2 and 3) during low to mid loads, effectively making it similar to the Fiat 500 TwinAir 2 cylinder engine.

Volkswagen says that cylinder shut-off reduces fuel consumption of the 1.4 TSI by 0.4 liter per 100 km in the NEDC (New European Driving Cycle) driving cycle. When the Stop/Start functionality is integrated, which deactivates the engine in neutral gear, the savings effect adds up to about 0.6 liter per 100 km. The greatest benefits of the technology are realized while driving at constant moderate speeds. At 50 km/h, in third or fourth gear, savings amount to nearly one liter per 100 km. Even when running on two cylinders, the 1.4 TSIwith its excellent engine balanceis still very quiet and low in vibration, Volkswagen says. Like the system on the Audi models, the on-board computer would measure various characteristics such as throttle position, the cars features and accessories being used at the time, and the load on the engine before the deactivation would engage.

Once again, VW is making advanced technology available to the mass. It truly deserve to be called the Peoples car.

new technology, engine, vw, tsi and 2 more...

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Written by SYF77
I have been a car fanatic since 1989, when my father was changing our family car then to a Toyota Corolla 1.6 GL fitted with a Twin Cam 16 valve engine that was carburetor-fed, a big deal back in those days. The automobile technology and industry fascinates me and I hope to broadcast these interesting developments to everyone out there through this blog.

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