Posts Tagged ‘electric’

100mpg Hummer H3 by a Provo Utah Company

Thursday, April 23rd, 2009

Raser Technologies, based in Provo, UT,  is a company I’ve been keeping my eye on for a couple years. They caught my attention because they have been working on some uber-cool technologies that have huge potential. They have held my attention because they are so close to where I grew up. A couple of my family members even bought a few shares of Rasor stock (RZ).

Until last week the company was not very well known. That all changed this week when they debuted a 100mpg Hummer H3. It is a 700 volt electric vehicle with a 4 cylinder gasoline engine that acts as a “range extender.” The gas engine has no mechanical connection to the wheels. All it does is turn a generator that charges the batteries, powers the electric motor, or even provides power for off-vehicle electric devices (should be nice for construction workers).

Check it out:

I love cutting edge technology. Stuff like this is paving the way for a whole new generation of automobiles. I do however, have to throw in a warning. Don’t expect to be able to afford one of these, at least not for a few years. This Hummer has 3 large (and expensive) lithium ion battery packs. Even if the Raser components (motor, generator, and controller) can be cost effective when mass produced, the batteries are not—at least not yet. Mobile devices (mostly cell phones) have pushed battery technology to a point never before seen, but it still has further to go. I wonder how far away we are from having vehicles like this in our driveways. 3 years? Maybe 5? Maybe more? I’m excited to see.

Toyota & Mercedes are Proving that Hydrogen FC and Battery Electric are Perfect Compliments

Thursday, March 19th, 2009

I have written a couple of times about the debate between hydrogen fuel cell vehicles and battery electric (here and here). Proponents of each are busy slandering the other. Meanwhile, Toyota and Mercedes are quietly proving that the two technologies are perfect compliments.

Fuel Cell Hybrid Vehicles (FCHV)

Toyota is the world wide leader in hybrid vehicles (thanks to the Prius). They are applying what they know about gasoline-electric hybrids to make FCHVs. Take a look at this diagram:

source

Essentially, they have  replaced the gasoline engine from their hybrid drive-train with a hydrogen fuel cell. This allows for a zero emissions vehicle that has a range of over 500 miles and refuels in roughly the same amount of time it takes you and me to fill up with gasoline.

Mercedes is doing the same thing only with a bus.

But Battery Electric is 3x More Efficient Than Hydrogen!

I know, I know, but remember how Toyota is developing a plug-in version of the Prius? It’s a Prius that you charge at home, then drive 30-40 miles on 100% battery power. Doesn’t it seem reasonable that they will apply the same technology to the FCHV? Imagine! All of your quick drives use only efficient battery power charged from the grid. When you need longer range, however, the hydrogen fuel cell kicks in and provides it for you.

I think this is the most promising alternative fuel arrangement that I have seen. It has all the convenience of a hydrogen fuel cell vehicle (or gasoline for that matter) plus the efficiency of a battery electric vehicle.

Thoughts?

Hydrogen Fuel Cell vs Battery Electric (the debate simplified)

Thursday, March 12th, 2009

In the world of alternative fuel vehicles there is a vicious debate over hydrogen fuel cell vs battery electric vehicles. At times it seems no less heated than John McCain vs Barack Obama (here is a small example).

Who Cares?

I strongly believe that one or both of these technologies is nearing a tipping point—a point where the technology will spread like a virus through the entire automotive industry. It will be a boom that reshapes the automotive industry similarly to the way cell-phones reshaped telecommunication. I certainly think it is worth understanding the pros, cons, and potential of each technology.

The Debate Simplified

Hydrogen and battery electric vehicles each produce great driving, zero emissions, electric vehicles. There are many arguments for and against each, but it is necessary to filter out all of the brainless rhetoric to get to the bottom of the debate.  I say brainless because there are a lot of stupid arguments about how one technology or the other is not affordable. Go figure! How many people could afford a cell-phone in 1989? Another argument that is far less stupid, but equally insignificant is that of infrastructure. Infrastructure ALWAYS follows successful products (notice how 3G technology is only available in select cities right now—if the technology proves successful, the infrastructure for it will quickly spread).

Once you get past all that, the debate is quite simple:

  • Proponents of Hydrogen: Fuel cell vehicles have longer driving range, shorter refuel time, and require no major lifestyle changes when compared to today’s gasoline vehicles. Battery electrics, on the other hand, are more limited in range, not as quick to refuel, and are a bit different to own than today’s vehicles—mostly because you have to plan time to charge them.
  • Proponents of Battery Electric: It is 3 times more efficient to produce electricity and store it in a battery than it is to convert the energy to hydrogen then back to electricity again to power the car.

h2-vs-batt

Searching for the Holy Grail

Both technologies are desperately searching for ways to overcome their shortcomings: hydrogen needs to improve its efficiency (here) while batteries need to be faster charging and have longer ranges (here and here).

Can They Compliment Each Other?

Toyota and Mercedes both seem to be proving that hydrogen fuel cells are perfect compliments to batteries. In fact, they even seem to solve each other’s weaknesses. Maybe the whole debate is a mute point? More on that soon.

Michelin Reinvented the Wheel

Thursday, February 5th, 2009

Imagine a car where the motor, transmission, drivelines exhaust, suspension, and brakes are all inside the wheels. Okay, that’s impossible. But what if there were no need for a transmission, drivelines, and exhaust? Could you put the motor and the suspension inside the wheel? Michelin did:

The entire unit bolts to the car and needs nothing but a brake line and electric connector to enable all its components.

This invention has HUGE potential! It could be used on EVs, Hydrogen Fuel Cell vehicles, or even hybrids (at least a Chevy Volt type hybrid). It could be used in two or four-wheel-drive, and front or rear-wheel-drive configurations. Car designs could change drastically because the usual space set aside for drive train components could be used for other things.

Here is one prototype application (notice how the computer controlled suspension allows it to lean into turns):

The first production car to use the technology will be the 2010 Heuliez WILL.

I wonder if changing a tire will still be simple. If not, I suppose there is always AAA to do it for you. :)

BBC’s Top Gear: “The Honda Hydrogen FCX Clarity is the Most Important Car in 100 Years.”

Wednesday, December 17th, 2008

With the debate still raging over electric cars vs. hydrogen cars, BBC’s Top Gear recently drove the Tesla Roadster followed later by the Honda FCX Clarity. They proclaimed Honda’s FCX Clarity “the most important car in 100 years.” They interviewed Jay Leno in the same program. He calls it “the savior of cars.”

I don’t believe that hydrogen vehicles are still years and years away. See for yourself:


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