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Five-oh-joe
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05.24.2008, 02:35 AM

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!".

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.

Last edited by Five-oh-joe; 05.24.2008 at 02:43 AM.
   
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  (#47)
lutach
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05.24.2008, 02:52 AM

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Originally Posted by Five-oh-joe View Post
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!".

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.
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lincpimp
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05.24.2008, 03:03 AM

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Well, the main difference between the airplane and car hardware is the smooth startup under heavy loads, and the ability to change power levels very quickly without upset of the back-EMF detection. Ever notice how most other sensorless controller bog down after cornering under heavy braking (when going from heavy brake to heavy throttle), and the Mamba doesn't? The Mamba has clean smooth starting and excellent "punch" because of the back-EMF design. I'm just not willing to compromise that high performance that the Mamba has.

I know you want a higher voltage Mamba -- I am looking into doing a 12S version, in addition to the 8S version.
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)
   
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lutach
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05.24.2008, 03:11 AM

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Originally Posted by lincpimp View Post
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 . The HV240 is basically there an all it needs is a brake more suited for cars. I would ditch Jamaica for Salvador in Bahia .
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Five-oh-joe
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05.24.2008, 03:12 AM

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Originally Posted by lutach View Post
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.
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...).

Last edited by Five-oh-joe; 05.24.2008 at 03:20 AM.
   
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lutach
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05.24.2008, 03:21 AM

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Originally Posted by Five-oh-joe View Post
The Tesla doesn't have that top speed because it's running through a 2 speed transmission that's a gear reducton, and the motor tops out at 14,000 RPM max. The Eliica has wheel motors, so you get far more wheel RPM than the Tesla gets probably.

3:1 is a crazy, especially with a 750hp capable motor spinning 20,000 RPM! It'd be super simple though! The less crap to break, the better.
You won in style with the Tesla, but the Eliica can seat 4 people . 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 .
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Mister-T
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05.24.2008, 06:10 AM

Quote:
Originally Posted by Pdelcast View Post
Well, the main difference between the airplane and car hardware is the smooth startup under heavy loads, and the ability to change power levels very quickly without upset of the back-EMF detection. Ever notice how most other sensorless controller bog down after cornering under heavy braking (when going from heavy brake to heavy throttle), and the Mamba doesn't? The Mamba has clean smooth starting and excellent "punch" because of the back-EMF design. I'm just not willing to compromise that high performance that the Mamba has.

I know you want a higher voltage Mamba -- I am looking into doing a 12S version, in addition to the 8S version.
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

Last edited by Mister-T; 05.24.2008 at 06:25 AM.
   
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benjakas
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05.24.2008, 06:12 AM

There's a bit talk about EV batteries in teslas's blog, http://www.teslamotors.com/blog4/?p=59
   
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skellyo
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05.24.2008, 08:27 AM

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I don't know if we had more sales than Traxxas -- just don't know how much Traxxas did.

Between our Industrial, Hobby, and Military controllers we build between 20,000 and 30,000 controllers a month. Hobby is about 85% of our business (but industrial and military are growing.)

My biggest issue is getting time to work on hobby controllers and projects -- too much other stuff always taking my time...
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

Last edited by skellyo; 05.24.2008 at 08:31 AM.
   
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lutach
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05.24.2008, 09:27 AM

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Originally Posted by benjakas View Post
There's a bit talk about EV batteries in teslas's blog, http://www.teslamotors.com/blog4/?p=59
Good find. I usually go there to see if anything new is coming out and I completely missed that.
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Five-oh-joe
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05.24.2008, 12:54 PM

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Originally Posted by lutach View Post
You won in style with the Tesla, but the Eliica can seat 4 people . 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 .
LOL! Did he even make it past college? Someone may be a bit sour on the subject from bad experiences perhaps...

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

Last edited by Five-oh-joe; 05.24.2008 at 12:56 PM.
   
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lutach
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05.24.2008, 01:49 PM

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

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 on a gas one.
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Five-oh-joe
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05.24.2008, 11:13 PM

Nice. No cable here back home (parents hardly watch TV...). So I am without my beloved discovery channel.:(
   
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azjc
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05.25.2008, 01:46 AM

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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
   
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Five-oh-joe
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05.25.2008, 02:09 AM

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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.
   
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