On the heels of the Obama administration’s announcement that it will move away from hydrogen fuel cell funding came an invitation from Volkswagen to visit the California Fuel Cell Partnership in Sacramento, CA and test drive one of their fuel cell prototypes.
Well, why not?
VW has been developing fuel cells since 1998, and has been a member of the California Fuel Cell Partnership since 2000. John Tillman, Program Manager of Volkswagen’s Advanced Powertrain Research Program, has worked closely with the vehicles since the inception of VW’s fuel cell program. He is positive that they have “solved a lot of the problems from back in 2000.” Though he admits “fuel cell durability is still a challenge.”
The specific vehicles we were able to get into contain a fuel cell stack that produces 55 kW of power. Other prototypes have been modified to deliver up to 85-90 kW, but as Tillman mentioned durability tends to be an issue with fuel cells. When a vehicle houses a smaller battery to accommodate for the larger fuel cell, the fuel cell ends up powering the drive for a longer period of time, causing it to break down more quickly.
So, does a hydrogen-powered Passat drive like the future? It’s no DeLorean time machine, but it’s pretty close. Electric cars are silent and clean diesels have that subtle, torquey burble, but the fuel cell vehicle whirred gently down the road, making the occasional noise that sounded eerily similar to carnival ride hydraulics. With all the whirring and buzzing, it was futuristic indeed.
If we want to nit-pick, the air conditioning can’t be turned on unless you find repetitive grinding from the electric motor soothing, and the vibrations from the fuel cell, which spans the entire length of the cabin, transmit into the seats. Think of it as driving with surround sound. Undoubtedly, the engineers are more concerned with fuel cell durability than the odd noise and burp here and there.
The biggest challenge for all automakers working on this type of technology, one that remains the elephant in the room, is the... Read the rest of this story!
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