There's already one like that; it's called the Tesla Roadster- although it's not really a brushless motor, but an induction motor (so yeah, a type of brushless I guess?). Lotus helped to design the car in fact (and that is why it resembles the Elise or Exige to a certain extent). And to top it off, it's powered by A123 cells! The battery pack alone weighs about 900 lbs.:gasp:

Too bad it's also a 150,000 dollar car....:whistle:

I almost dropped dead after my numbers kept going up. I was going for a 900Vdc, 400Arms, but the motor can go up to 700HP at 20000rpm and each lithium cell can put out 750A cont. and 1100A pulses. When all was said and done if I went ahead I could've almost match Traxxas sells number.

That's one helluva motor Lutach! What diameter was the motor for it to be able to rev that high? That's one helluva battery pack too... Each cell putting out 750 amps continuos is insane. I can only imagine how big each cell is!

Tesla can't touch the Eliica (Now that is a electric car) and now with all the change in management. The Tesla does not use A123 from what I know.

The motor is not big at all for the amount of power it puts out. The size of the motor is around 20 inches in length and 10 inches in diameter and it weighs only 150lbs. The battery is 35mm in diameter and 165mm high.

I was watching a special on the car, and one of the engineers was holding a cell out of the pack. Looked exactly like the A123 cell (even had that dorky white cardboard wrap on it). I think A123 may have it on their site as well. I also remember them saying something about the voltage being 3.3v per cell, and the A123s are the only ones that I know of which that nominal voltage (I do believe there are some chinese rip offs of the a123 chemistry now though).

Edit: can't find anything on the cell used. The more I think about it, it's probably not an A123 cell, as this was before A123 had their 18650 size out IIRC. Still neat though.

I've seen the Eliica, and it is UGLY! Nice power output though. It's definitely a piggy when it comes to weight (about 5000lbs.!). The 0-60 time is impressive for something that weighs as much as that thing, and the 8 wheel drive certainly helps it scoot. The Roadster is about the same 0-60, if not a tad less than a tenth or so of a second faster though...hehehe.

Besides.....the Tesla screams "sexay!!!". The Eliica screams "fugly!".:whistle:

Nice specs on the motor too Lutach. Definitely not a huge motor by any means. 150lbs. isn't too bad either. If you're relatively fit, you could swap that sucker in yourself.... What kinda transmission, if any, were you looking to mate it to? That's something else that's interesting about electric cars. The ones that I've seen either have wheel hub motors (so direct drive), or only like, two speed trannys due to their torque curves and the fact that they can produce power almost anywhere they need to; area under the curve is massive compared to an ICE. Imagine a CVT or CVP (look up NuVinci) mated to an electric powerplant. That'd be pretty neat. Unnecessary, but neat.

What impressed me the most about the Eliica is the top speed. Tesla doesn't come close to it. The motor that I'm looking at will be capable of speeds close to or faster then the Eliica, but it will all depend on gearing. I kind of gave up on it after the price kept going up, but with that motor I was going to basically try and see if hooking it to a 3:1 IRS rear end would do the trick.

Well, I would buy at least 4 of each, probably more. Just put the adjustable cc bec inside the cases, I will pay for it! And leave the circuitry for the bec seperate from the brain. For heavier vehicles hv is the only way to go, damn the r/c safety nazis!

Now, I may go out on a limb here, and correct me if I am wrong. I am guessing that the profit margin on the air escs in better than the car stuff. I know that air guys like to spend money (or are at least used to spending money) while the general r/c car owner (me not included) is a cheap ass. I see the bulk of mm systems sold with the motor, at an excellent price, and they outperform all competition. So it appears that car sales are based on good price and performance, price coming first. Easy to see why you guys made the sidewinder, better price and good performace for the average user (who generally purchases 90-95% of the stuff). So the low selling, low profit stuff that we are asking for must be paid for by the general consumer!

I suggest raising the price of everything you sell by 2 dollars. That will pay for the 8s and 12s car escs, and you can just hand them out to people like myslf and lutach! You could also sell some of them for 100% profit, and then we could all go to jamacia! It is a win - win situation! (no need to thank me, I can always come up with great ideas like this, you could have me on retainer for a small fee if you like)

Some of the boat guys are even talking about using the Monster Max in their boats. It would be nice to cover the surface area with one controller. We want a HV240 too :yes:. The HV240 is basically there an all it needs is a brake more suited for cars. I would ditch Jamaica for Salvador in Bahia :lol:.

The Tesla doesn't have that top speed because it's running through a 2 speed transmission that's a gear reducton (as you said, gearing is what gets these things up to such crazy speeds), and the motor tops out at 14,000 RPM max on certain models. It's also got a 250hp motor, which is peanuts compared to the Eliica. The Eliica has wheel motors, so you get far more wheel RPM than the Tesla gets probably; plus you got 8 of them in the Eliica, so that is bound to spread out the load more evenly amongst the motors as opposed to just one motor. Combine this with the massive power, and the thing is a lead sled rocket! Wonder how the Eliica handles weighing in at 5000+lbs.?

3:1 direct drive is crazy, especially with a 750hp capable motor spinning 20,000 RPM! It'd be super simple though! The less crap to break, the better (and with 750hp on tap....I'm sure stuff would break).

I'd love an electric drag car. Having 100% torque at 0 RPM would be a plus in drag racing (but could also really suck in terms of wheel spin off the line...).

You won in style with the Tesla, but the Eliica can seat 4 people :tongue:. Most of the electric cars I see coming out are crap designed by old guys and college kids who has no idea of what is out there. I remember one guy I met in Florida who used to say, "People that goes to college are basically dumb bastards who can't figure crap out on their own so they need to learn from someone else". I was :rofl:.

it' funny, I notice the behaviour on the previous software. That probably why racer dislike sensorless system, if you miss your corner you put yourself and the controller in trouble.
It was improved a lot since 1.17 anyway

There's a bit talk about EV batteries in teslas's blog, http://www.teslamotors.com/blog4/?p=59

Patrick,

I'd like some more information on your military controllers. I work in the defense industry (Lockheed Martin) and sometimes have a need for a COTS servo controller/amplifier. I know some of my coworkers would love to have the information as well. Should I e-mail you directly to get this information?

Thanks,
Sean

Good find. I usually go there to see if anything new is coming out and I completely missed that.

LOL! Did he even make it past college? Someone may be a bit sour on the subject from bad experiences perhaps...:mdr::na:

I wouldn't exactly call Aerospace Engineering "dumb crap" either....but that's just me. Hehe!

I couldn't say much as I was planning to get an electronic engineering degree myself, but he always made me laugh. Are any of you guys watching the show on discovery channel called "Mean Green Machines"? I'm looking at electric go kart putting a :whip: on a gas one.

Nice. No cable here back home (parents hardly watch TV...). So I am without my beloved discovery channel.:(

tell them they need to get Directv lol

My dad's contemplating satellite (probably Directv). Knowing the old man, he won't spring for it though. Especially with a new year of college coming up, and I'm getting a "new used car" (c'mon suby!). Oh well... Get free cable back at school though! My TV is always on comedy central, discovery, history, or speed channel. I only need those four channels, and I'm set for TV.:lol:

Count me as a paying customer in the HV world as well. :great:

I think I'd go into the racing side of the car thing, You guys got the bashing segment wrapped up. The main thing i'd do is a ROAR legal motor and push for rules for a MT class. I think a bunch of people want to run mamba's on a ROAR track, but if strict on the rules, the mamba motors are not legal. With the new electrics coming out (Emaxx, E-revo and E-savage) and the nitro conversions being more popular, They are going to want to race.

Hope it does come out and I will wait until it does.

That would be nice specially when the N60 and N40 from Trinity are both ROAR legal and seems to be just like the Feigao motors. Now one thing that would be nice is to see a 4 or 6 pole with sensors hit the market for 1/10 scale with the legal size rotor. I know Mega has a sensored motor, but I've only seen it in their website and I don't know if the diameter of the rotor would be the legal size. Here is the link: http://www.megamotor.cz/new/script/m...75237&ref=news. Just scrow down a bit and you'll see the Motor ACs Car 10, Motor ACs CAR 10 PRO - Built in sensor.