
While there are a lot of good things about electric cars, one of the biggest drawbacks is the heavy load of batteries they must carry. But students at the Karlsruhe University of Applied Sciences are building a car that instead gets its power from the road. The power is delivered to the vehicle through cables embedded in the roadway using inductive charging, allowing a much lighter electric vehicle that does not need to haul a great mass of batteries.
There are companies proposing to charge electric vehicles without a plug, so why not take it a step further? Taking the batteries out of the vehicle lightens it considerably. These induction powered vehicles would be constrained in where they could travel, but that could be a benefit to cities that might want to sponsor such vehicles in order to limit access to crowded urban areas or provide small, automatic vehicles as an alternative to buses or other mass transit.
The work is still very developmental and preliminary. The vehicle only carries a single passenger. It has a top speed of only 50 kph (31 mph), and, for now, it operates only on a small, indoor test track. But, on the other hand, the entire vehicle only weighs 60 kg (132 lbs), a mere one-fifth the weight of just the batteries in the Nissan Leaf - 300 kilograms (660 pounds). Less battery weight allows lighter structure, smaller motors, and many other improvements to make a lighter vehicle.
There are certainly efficiency issues to be worked out with this approach, and the development of the infrastructure for this would be neither quick nor cheap to install. This is certainly the kind of thing that would work best in dense, urban areas, rather than for suburban sprawl. Investing billions of dollars into a road network for this technology is still a number of years off. However, this could be an important element for an automated transport network. Someday, you might get around in a city in a small vehicle, without the need for a monorail.
via: Gizmodo

written by Dave, September 29, 2010
written by Todd, September 29, 2010
Even in places like college or small communities it doesn't make sense. Just use a nev.
On the surface inductive is awesome, but I personally think its a waste, just like battery swapping...but thats another story
written by inexplicablyNic, September 30, 2010
Plus, I can't imagine the power transfer efficiency of this system is very impressive.
written by Fr. Peter, September 30, 2010
It may look like a larger Scalextric car but so what? I doubt if the students have the near unlimited budget to take it further.
As far as I am concerned, well done the future designers/engineers of the Karlsruhe University of Applied Sciences!
written by John Martinez, September 30, 2010
I already have a pre-electric car. (So did Fred Flintstone!)
written by Roberto DePaschoal, October 01, 2010
written by Gabba, October 01, 2010
What do we do?
That the US is in major economic decline is beyond dispute and that there is an increasing number of unemployed, illegal immigrants and an ever increasing prison population is also beyond dispute. Why can't we put this increasing and underutilized resource to good use in generating clean electricity and transportation?
Staged gangs operating a system of federated treadmills can generate sufficient power for a local community. The gangs would operate in shifts to ensure efficiency.
Instead of Scalextric automobiles for local transport why not deploy rickshaws? Countries like India, Indonesia and Pakistan have demonstrated how well human powered transportation can work. I am sure that using good old American ingenuity and composite materials technology we can design stronger and lighter rickshaws and perhaps even develop a large export market for them.
written by sarah, October 05, 2010
Also more isolated cities that are up and coming could potentially use this system...because there is nothing that says traditional combustion vehicles could not also use the roads... especially if these places had a lot of sun or wind or waves to help power a grid...or even something pressure sensitive in the roads to make it power itself.
I'm reminded of telephones and cell phones and how a couple of cities in Africa my friend was researching didn't really have telephone infrastructure developed yet...and were ready for remote talking technology... so they just leapfrogged and went cellular completely skipping the cost of traditional line infrastructure. why couldn't a community that was just being built up go from dirt roads to imbedded technology roads if it meant saving huge money on petroleum costs and green credits?
I'm tired of naysayers just poo-pooing a clever idea in its infancy because they themselves can't see the potential or green or utility or quick return cost savings! Besides, why shouldn't we be excited for our college students developing, building, and demonstrating a fairly novel concept in transportation technology. I mean if that was my child or cousin, I'd think thanksgiving would have some pretty interesting discussions vs. a more typical college creation of say a secondary research paper done for the sake of showing a student can write a paper.
weather this is the best idea for the future of transportation, weather it's truly viable is an other question but in particular applications, why the heck not? Maybe developing track that is very easy to lay or retrofit is the sweet spot of the deal now that the concept is demonstrated. I mean heck we don't even NEED wheels. We could all get around on hover craft for car style mobility. then road refinishing would not even be that important. I mean car's are just horseless carriages. why can the next gen be wheel-less cars or cars that grab energy from a track etc. think of the weight issues solved if you didn't even need wheels? and someone is reading this saying the power differential necessary to lift xyz this high would require too much output to be green instead of just grooving on the idea these students came up with.
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