14kw continuous 94% efficient motor.......

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johnrobholmes
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Re: 14kw continuous 94% efficient motor.......

Post by johnrobholmes » Feb 10, 2011 11:26 pm

That would mean my KV may be closer to 70... I need to tach my motor and see where it is falling at no load.

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Re: 14kw continuous 94% efficient motor.......

Post by crap » Feb 11, 2011 4:13 pm

So what was the no load losses at these rpm's?

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Re: 14kw continuous 94% efficient motor.......

Post by katou » Feb 11, 2011 6:28 pm

Reveal WHAT project details? I've been following this since it's inception, is there a secret project being built around this motor or something?

So, in sum, what project are you NOT building? I'm confused.

Katou

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Re: 14kw continuous 94% efficient motor.......

Post by johnrobholmes » Feb 11, 2011 7:53 pm

I don't know much, but I can tell you it is probably some top secret project for a racing circuit.

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Re: 14kw continuous 94% efficient motor.......

Post by katou » Feb 11, 2011 10:30 pm

Probably a hovercraft. They are soooooo sick. Racing hovercraft? Even better.

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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » Feb 13, 2011 8:08 am

Yes, there is a secret project. No, I can't reveal the details. I will say that the info is out there. The motor will get the final hall mount (custom machined and etched pcb) soon and will get load tested soon after that.

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Re: 14kw continuous 94% efficient motor.......

Post by magudaman » Feb 15, 2011 11:48 pm

Any word of availability for us non racing normal folk?
Electric Motoped:
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16s1p A123 AMP20 Pack
Kelly Ebike Brushless 350a/10kw

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Re: 14kw continuous 94% efficient motor.......

Post by recumpence » Feb 16, 2011 2:12 pm

Once final testing is done by my Beta testers :wink: , I will look into production!

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Re: 14kw continuous 94% efficient motor.......

Post by j3tch1u » Feb 16, 2011 2:33 pm

recumpence wrote:Once final testing is done by my Beta testers :wink: , I will look into production!

Matt

looking forward to it :!: :!: :!:

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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » Apr 12, 2011 9:11 am

So we've had A LOT of setbacks, but we're finally ready to do serious load testing. The battery guys just now got the battery ready for us...There will be some fun stuff coming soon!

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Re: 14kw continuous 94% efficient motor.......

Post by gogo » Apr 12, 2011 1:50 pm

coleasterling wrote:So we've had A LOT of setbacks, but we're finally ready to do serious load testing. The battery guys just now got the battery ready for us...There will be some fun stuff coming soon!
Wait, let me guess, the battery is from EEStor? :mrgreen:
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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » Apr 14, 2011 2:36 pm

This thing is a BEAST. You guys who are thinking of putting it on a bike are crazy!(in the best way possible...this is coming from a person building a 175hp Amod style car that weighs 450lbs). I still can't share details, but testing has started out really well. With the kind of power we're putting to it, it gets hot quickly, but cools down relatively quickly as well because of the low thermal mass.(compared to something like the Perm 132) It would be pretty much perfect for liquid cooling(the can is perfect for it) and I am considering doing it for our project.

The hall sensor solution works great and even the controller is doing well. We're going to start data-logging soon, so maybe I'll have some graphs of current, voltage, temp, rpm, etc... for you guys.

Lastly, I think 14kW is pretty accurate. I'll have to do some more testing to see just how long it can do it, though. If we're talking continuous as literally non-stop all day, then no, it won't do that. It will get heat soaked and all sorts of bad will happen. For an automotive type project where the duty cycle at full power is relatively low, the first loaded tests have me thinking it will do just fine. We tested at a max of 200A last night and will be doing up to 400A as soon as our batteries get cycled a few times. Bottom line, looks great so far!!

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Re: 14kw continuous 94% efficient motor.......

Post by Arlo1 » Apr 16, 2011 12:06 am

Awesome cant wait!!!
My Leaf motor controller build. viewtopic.php?f=30&t=63982&p=963227#p963227
My YSR build http://www.youtube.com/watch?v=BRo8r5g4NBg
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Don't keep them were you cant afford smoke or fire!
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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » Apr 24, 2011 7:44 pm

Well, I've got some really bad news for you guys. We blew the motor. We previously tested at 400A and 120V without issue. While it got HOT(outside can never got over 200F) , it seemed to be just fine. We tore the motor down and there were no indications of problems after that run. I'll have to let the cat out of the bag here and say we were running it on our Formula Hybrid car.

Our overall configuration was this: We coupled the motor to a planetary gearbox and from there it went to the diff. The drivetrain team was having issues sealing the gearbox and it had leaked some oil into the motor. We cleaned it out the best we could by blowing air through it, but the gearbox just leaked into it again. So, we cleaned it out again. Third time, apparently it leaked REALLY badly. We were doing an acceleration run and POOF. Black smoke. We pulled the motor off and on the bottom side, right where the oil would puddle in the motor, was a short in the windings that turned into a huge, 1/8 inch gap of missing windings. I think that the oil degraded the coating on the windings enough to where it finally just shorted and blew.

We ended up putting the Perm 132 and controller from last year on the car overnight...gaining around 15lbs in the process. Accumulator, by some miracle, got the pack reconfigured for the new power specs I gave them in just about 6 hours. Funny when it took 4 months to get it put together before...Anyway, I did some emergency machining and we are now running as a Hybrid again. We're going to be a bit slower and a bit heavier, but at least we'll be able to compete.

I apologize for not being able to get more data to everyone about the motor's performance. Let me tell you though...It really is a fantastic motor. Without the Drivetrain issues and with more testing, it would have been great. It ran REALLY well when it was running. Unfortunately, we also had some Kelly controller issues at high currents. Surprise... :roll:

My advise is this...Absolutely run this motor. Don't run a Kelly. We ran it because Kelly is the only company who had a controller with our specs and who would pay us any attention. Oh, also, while the super shiny motor looks great, it isn't so good for heat transfer. We sandblasted the can and it lowered motor temps several degrees with absolutely no other changes. It is definitely worth it to do this. I'll post pictures up when I can.

-Cole

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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » Apr 27, 2011 12:44 am

And this is what it was going on:

Image

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Re: 14kw continuous 94% efficient motor.......

Post by wojtek » May 06, 2011 4:06 pm

wow that is sooo cool!

Matt- any news on the 14kw motor available for sale yet? :twisted: :mrgreen:
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Re: 14kw continuous 94% efficient motor.......

Post by ELECTRICMOTION » May 08, 2011 6:17 am

hi
i can't open the attached files .jpg
how can i do?

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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » May 09, 2011 1:27 am

Here are a few pictures of how it was set up.

Image
Image

And how it ended up when we rebuilt the rear end for the perm:
Image



By the way...We dominated the competition!! 2011 FH World Champs!!

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Re: 14kw continuous 94% efficient motor.......

Post by wojtek » May 09, 2011 2:51 am

really impressive stuff!

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Re: 14kw continuous 94% efficient motor.......

Post by coleasterling » May 10, 2011 12:30 am

Thank you. It is the result of over ten thousand combined hours and over 1000 hours of my personal time. The car isn't perfect(especially without the soup can!!), but I am proud of it.

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Re: 14kw continuous 94% efficient motor.......

Post by crap » Sep 01, 2011 1:13 pm

any progress on this motor, or has the project died?

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Re: 14kw continuous 94% efficient motor.......

Post by recumpence » Sep 01, 2011 1:37 pm

crap wrote:any progress on this motor, or has the project died?
We have other things happening right now. But, I can tell you this is not a dead project.....
1% of the world's population can think "Outside the box". The rest are firmly stuck within the box. Where are you?

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Re: 14kw continuous 94% efficient motor.......

Post by Arlo1 » Sep 01, 2011 2:27 pm

recumpence wrote:
crap wrote:any progress on this motor, or has the project died?
We have other things happening right now. But, I can tell you this is not a dead project.....
Hey matt can you share any details on the controller and motor eg. The stator teath and mag polls? Inductance? Resistance? Controller type and resistance.
My Leaf motor controller build. viewtopic.php?f=30&t=63982&p=963227#p963227
My YSR build http://www.youtube.com/watch?v=BRo8r5g4NBg
RC and most types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
HI power controller design. Game Changer
http://www.undergroundelectrics.ca/

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Re: 14kw continuous 94% efficient motor.......

Post by keetper » Nov 04, 2011 2:31 am

Arlo1 wrote:
recumpence wrote:
crap wrote:any progress on this motor, or has the project died?
We have other things happening right now. But, I can tell you this is not a dead project.....
Hey matt can you share any details on the controller and motor eg. The stator teath and mag polls? Inductance? Resistance? Controller type and resistance.
Yeah, that's particularly what i've been searching for in spy phone other threads. Would be cool, guys..
Last edited by keetper on Feb 07, 2012 1:53 am, edited 1 time in total.

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Re: 14kw continuous 94% efficient motor.......

Post by circuit » Nov 04, 2011 11:27 am

recumpence wrote:Here are the specs;

Can length--- 4.5 inches
Can diameter--- 3.75 inches
Shaft diameter--- 1/2 inch (keyway shafts will be used)
Expected efficiency--- 94% (more on this later)
Continuous power--- 14kw
Burst power--- 25kw
Weight--- Under 7 pounds (expected)
[..]
Oh, I expect the sensorless motor to be $950
[..]

Matt
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