12 kw rc motor

[crap]

The power capabilities could be verified by running it as a generator with a common resistive load instead of waiting for a working controller, if that is all that's needed. It's admirable but perhaps out of place for the designers to take responsibility for finding the perfect controller. Especially since a low controller price seems to be so important, lets not forget that there may be several customers willing to pay for a kelly controller or better. The motor is after all big enough to be useful in larger electric vehicles (motorcycles, gokarts, buggys, small cars...) where the price of the rest of the equipment may dwarf that of the motor and controller.

If the continous power really is 12kW or higher, and a kelly controller can be made to work, it is no doubt usable in electric cars, where the price of a kelly is not an issue. In fact, for the european DIY EV market, EMC certificates are often required. Thus anything cheaper may not even be an alternative, since it likely lacks this important property.

Like I said, it is admirable of you to continue seeking verification of the motors capabilities and controller compatibility, but perhaps not entirely necessary. As soon as someone has managed to push it to satisfying power with whatever controller, I hope it will be made available.

[Arlo1]

The power capabilities could be verified by running it as a generator with a common resistive load instead of waiting for a working controller, if that is all that's needed.

I belive this was done a long time ago.

It's admirable but perhaps out of place for the designers to take responsibility for finding the perfect controller. Especially since a low controller price seems to be so important, lets not forget that there may be several customers willing to pay for a kelly controller or better. The motor is after all big enough to be useful in larger electric vehicles (motorcycles, gokarts, buggys, small cars...) where the price of the rest of the equipment may dwarf that of the motor and controller.

If the continous power really is 12kW or higher, and a kelly controller can be made to work, it is no doubt usable in electric cars, where the price of a kelly is not an issue. In fact, for the european DIY EV market, EMC certificates are often required. Thus anything cheaper may not even be an alternative, since it likely lacks this important property.

Like I said, it is admirable of you to continue seeking verification of the motors capabilities and controller compatibility, but perhaps not entirely necessary. As soon as someone has managed to push it to satisfying power with whatever controller, I hope it will be made available.

Kelly still has issues.... SO Kelly is out! There is NO controller ATM for this motor NOTHING that anyone has proven so untill then this motor is NOT going to be avalible!
Splinter has made a kelly work at very low power levels but why not just buy a cheeper better lighter smaller more efficient motor if you are going to run lower power levels.
Hall and marko have a video of running a VW bug with this motor and a kelly and it was miss firing to get it going. It would have only taken a few more miss fires them WHAM fried controller! We REALY REALY need to lock this thread till a controller gets sorted out! You guys have no Idea what its like to buy this motor and have it sit as a $1000+ paper weight! Thats just eats controllers. Even if you try to use a expensivre sevcon it WILL NOT WORK!

[c_a]

What is the real problem with the kellys?

I am building a 40kW peak motor and I like to use a kelly for the first tests...

[Arlo1]

I have not used a kelly. I dont like their layout. I think I can build better. Ask luke (liveforphysics) He has blown up lots of them. If you want reliable power use something else.
Kely uses voltage drop of the fet to moniter phase amps so... Better then china controllers for that reason but with a worse cap location! The powerstage layout is the most important part of a bldc controller other then the programing!

[adam78]

This controller might be able to run colossus but costs around 1800 USD and is only rated for 15s LiPo

The controller has been used in a small e-car they converted using a huge 40kW BLDC outrunner.

[Arlo1]

This controller might be able to run colossus but costs around 1800 USD and is only rated for 15s LiPo

The controller has been used in a small e-car they converted using a huge 40kW BLDC outrunner.

This motor needs to spin past 6000 rpm to get to its max efficiency. That meens at least 20s lipo or rewind i for lower inductance and higher kv? We need a 100v 600-1000 amp controller! Im working on it

[markobetti]

Arlo , Splint i just may have invented the wind cooling system patent haahah .... anyway its air-cooled...JUST TO LET YOU KNOW we re not stoping this developement...
http://youtu.be/MeNk2Fcag0w

[SplinterOz]

Nice... One question... does it still have the same bolt pattern for mounting? and the same diameter?


=======
Actually that was two

[Arlo1]

I love you guys. Now someone fly to canada and help me finish this damb controller!!!

[markobetti]

Nice... One question... does it still have the same bolt pattern for mounting? and the same diameter?


=======
Actually that was two

I will check , but dont worry - i have a solution for you to mount on the same place if required . One small change is needed but you will be able to use the same expensive and beautiful mount .

Best RGDS,

Marko

[markobetti]

Thanks Arlo , same goes for you

[markobetti]

Nice... One question... does it still have the same bolt pattern for mounting? and the same diameter?


=======
Actually that was two

Diameter same

[dangerzone]

What is the real problem with the kellys?

I am building a 40kW peak motor and I like to use a kelly for the first tests...

And which controller did you have in mind to couple with that..?

[Arlo1]

Marko is working on testing a couple controllers as am I. All my spare time is now dedicated to making this motor fly!

[dangerzone]

Marko is working on testing a couple controllers as am I. All my spare time is now dedicated to making this motor fly!

It would be nice to find something strong enough for that kind of rpm yet affordable at the same time...

[Arlo1]

Marko is working on testing a couple controllers as am I. All my spare time is now dedicated to making this motor fly!

It would be nice to find something strong enough for that kind of rpm yet affordable at the same time...

Well get building it.... IF price is going to be the issue you may need to build it your self lol. Im doing everything I can to develop a cheep but effective controller.

[gensem]

Markobetti

Any update on the motor/controller?

[Bjorntsc]

I am starting a project and need a motor.


Link to my thread:
http://www.endless-sphere.com/forums/viewtopic.php?f=28&t=42795

[Arlo1]

Im still working on this and very close to dyno testing but..... 60+ hours of work per week for my money making work (to pay bills and debt) realy slows down getting to it! I dont know who else is working on it ATM. But hi power brushless motor controll is slowly becoming more avalible. I have BIG controller plans so I will keep you all posted.

[Bjorntsc]

It has been a while since anyone posted on this thread, so I gave it a push to try and get it moving again.
I was wondering if you know anything about the 7kW colossus on another thread?

[Arlo1]

You can push a thread all you want it is a hard to run motor you can buy it but there is no controllers under ~$5000 for it!
I made this controller and so far this is what I have. I have a ways to go but IM getting there!

[Ratking]

Yeah, its turning on its own

Good luck with your controller, would be fun to build a light bike with that motor.
Next project maybe?

[nechaus]

Im assuming my rc fatboy controller is going to be useless for ebikes

I would be interested in seeing how it runs that motor tho

[SplinterOz]

Just an update from my build thread.



Yes that is my bike, yes it goes, yes the Colossus is running fine.

Not as much getup as I would like... will be looking into that.

[nechaus]

Wow

Im super impressed!

nice job!