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Electric Compact Equipment
Auerbach
Thanks for your comment.
As for implementation our system to heavy tractors indeed it is a challenging task and although to my self I strongly believe it is doable I fully understand that it yet has to be proven.
But for one min lets assume we have overcome the mechanical problem, the question still remain who needs it.
All electric propulsion suffers from the very same problem which is the low density of energy in batteries and of high cost.
Today due to the environmental pressure the decision has been mead to move forward with electrical propulsion even thaw its always seems to be tomorrows technology.
It doesn't necessarily have to be consisting on heavy led acid batteries; it can be hybrid with lion like in some cars, or with hydrogen fuel cells. In any case it is obvious that should such solution will be in use energy conservation issue will be more critical.
From what I a picking here I assume that it's simply does not exist yet outside the laboratories of the big companies.
In any case thanks for hosting us here, and for your comments.
Avishay
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Electric Compact Equipment
Avishay, I have a skid loader. It weighs about 8,000 lb. Its fuel consumption is rated in gallons-per-hour which is 2.9. It's rated at 78 hp.
Unlike a transportation vehicle which is rated for getting from point A to B and using that energy efficiently because of speed, machinery cannot do that. Somehwere I read a typical vehicle only needs 4 HP at each wheel to propell it at 45 MPH.
 , I come from a long line of prolific inventors. I remember when I was 12 or 13 I "invented" a proplusion system based on compressed air and a steam-type turbine. (Little did I know that a turbine was not like a fan) I was so proud of it. I showed the plans to an engineer-type whose first observation was: "Where does it get its compressed air?"
(I had air tanks to hold compressed air). In "my world" the turbine would power an air compressor to refill the compressed air tanks. He says "Then you have invented the first perpetual motion machine. And those don't exist".
Oh.
"Air tanks, not good enough", he said. "You'll need a big compressor mounted on a trailer to power it. And if you're gonna do that, you might as well just power the car with the engine from the compressor".
So, Avishay, this is how I see electric equipment: you'll need a big generator to constantly recharge the batteries. And if you have to do that, you might as well...
And you said thjat tracks use more power than wheels--I'm not sure about that. There are many factors that go into that pro and con. Yes it takes more power to turn a tracked vehicle that has tracks longer than the tracked width. No, it doesn't take more power to traverse sand where you have floatation. And it depends on the profile of the track too: New Holland and Komatsu excavators have what are called pavement tracks taht have curved-up side lips that make turning easier and less damaging to not only pavement but earth too.
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Electric Compact Equipment
Auerbach
Thanks for your comment.
As for implementation our system to heavy tractors indeed it is a challenging task and although to my self I strongly believe it is doable I fully understand that it yet has to be proven.
But for one min lets assume we have overcome the mechanical problem, the question still remain who needs it.
All electric propulsion suffers from the very same problem which is the low density of energy in batteries and of high cost.
Today due to the environmental pressure the decision has been mead to move forward with electrical propulsion even thaw its always seems to be tomorrows technology.
It doesn't necessarily have to be consisting on heavy led acid batteries; it can be hybrid with lion like in some cars, or with hydrogen fuel cells. In any case it is obvious that should such solution will be in use energy conservation issue will be more critical.
From what I a picking here I assume that it's simply does not exist yet outside the laboratories of the big companies.
In any case thanks for hosting us here, and for your comments.
Avishay
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Electric Compact Equipment
A tractor, by the very nature of it, is designed, and primarily used for, heavy draft work, that is, pulling heavy loads.
From this point of view a tractor has a lot in common with an airplane.
For this it needs to be very efficient at converting the energy into mechanical power, and with the least amount of weight necessary to do the job.
Unfortunately, tractors, just like airplanes, are VERY difficult to convert to electric power. With today's battery technology there just isn't a battery capable of producing enough power, for a long enough period, that weighs the same or less than a comparable internal combustion engine.
When you add tracks to the tractor, even only part-time like yours, it just makes it that much more difficult.
Every pound you add means that much more parasitic losses.
Best of luck.
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