Wednesday, May 12, 2010

Mercedes

2009 Frankfurt Auto Show: Mercedes Officially Unveils New B-Class F-Cell EV

mercedes-B-class-F-Cell-front.jpgMercedes-Benz officially unveiled a new B-class hydrogen fuel-cell electric vehicle at the Frankfurt Motor Show this week, but it is by no means the German automaker's first.

More than 4 years ago, at the March 2005 Geneva Motor Show, DaimlerChrysler debuted a B-Class F-Cell that looks almost identical to the one pictured here.

Back then, the zero-emissions model featured an electric motor powered by a fuel cell that put out more than 100 kilowatts -- or 35 kilowatts more than its predecessor.

The last-generation B-Class F-Cell had a range of nearly 250 miles, due to reduced fuel consumption and greater hydrogen storage capacity. Earlier versions had a range of around 150 miles.

If you're thinking Mercedes is spending years improving this technology, you'd be right.

As we reported last month, Mercedes is now sufficiently satisfied with the current version that the automaker will be launching a small fleet of them for real-world testing in the U.S. and Europe.

The cars use an on-board fuel cell stack to convert hydrogen and oxygen to electricity that powers an electric drive system. The cars in the small fleet will deliver a range of up to 250 miles with a top speed of 105 mph.

Mercedes-B-Class-F-Cell-rear.jpgFuel consumption is the equivalent of 3.3 liters of diesel per 100 kilometers on the European drive cycle.

In U.S. terms, that would be around 71 miles per gallon of diesel or about 64 miles per kilogram of hydrogen.

As we previously reported, the F-Cell's electric system delivers the equivalent of 136 horsepower and 214 pound-feet of torque. Mercedes says it has performance characteristics equal to and "in some cases far better than" those of a B-Class with a 2.0-liter gas engine.