race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT.

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Arlo1 » Apr 16 2011 12:12am

Hahaah Yup :mrgreen:
Yeh doc I only have peaks of 40KW
I can run a 180-190 amps while riding but it only last for 3-6 seconds before I have to turn stop or evade the FIVE 0 :wink:
So on the dyno my test would stop just under 20 KW!
I already know my X5 stops getting faster between 15-20 kw!
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Arlo1 » Apr 16 2011 12:33am

Do I have to be the first one to point it out.....???
So At 10 kw in you got alomost 10 out and 20 kw in you got ~10 kw out and 30 kw in you got the same as 20 kw in..... Why did you try 40 kw in????
My Leaf motor controller build. http://endless-sphere.com/forums/viewto ... 27#p963227
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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!!!
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by liveforphysics » Apr 16 2011 12:37am

Arlo1 wrote:Do I have to be the first one to point it out.....???
So At 10 kw in you got alomost 10 out and 20 kw in you got ~10 kw out and 30 kw in you got the same as 20 kw in..... Why did you try 40 kw in????

LOL!

Yes, I wanted to just see how much the controller/battery combo could dish out. And stress the motor a bit to see how rugged it was.
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Arlo1 » Apr 16 2011 12:41am

Bahahaha You Stressed the motor a bit all right!
LMFAO
My Leaf motor controller build. http://endless-sphere.com/forums/viewto ... 27#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!!!
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by liveforphysics » Apr 16 2011 1:15am

Arlo1 wrote:Bahahaha You Stressed the motor a bit all right!
LMFAO

I do tend to lean on things a little harder than most folks.
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Miles » Apr 16 2011 1:38am

Awesome! A noble death :mrgreen:

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by liveforphysics » Apr 16 2011 2:14am

Miles wrote:Awesome! A noble death :mrgreen:
My feelings exactly.

No shame in dying if you do it up right.

Eating 40kw and exploding plasma and fire through a ring of dicks is like defining "doing it right".
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by mdd0127 » Apr 16 2011 2:27am

You beat that thing like it was driving a jet boat through the ocean! I don't even know where you could beat a bike that hard without running out of road/ballz. :lol:

Best of luck at the race. I wish I could be there. :twisted: Maybe next year!
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by FAS » Apr 16 2011 7:59am

Very cool !!!
liveforphysics, you should add to your signature the following phrase "Best X5 motor testing highlight video EVER!!!!"
:D
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Philistine » Apr 16 2011 8:03am

Hang on, that's not a bad name for a punk band "40kw of Flaming Cock"

The band's logo could be a firey electrified rooster.

If you were taking this seriously though Luke you would be keeping this research under your hat at least until after the race. Some competitors are going to see this and nod knowingly "needed bigger cock vents". You are going to turn up to the race and someone will have gone crazy with a Ron Jeremy stencil all over their hub and you won't have a chance....

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Ykick » Apr 16 2011 8:12am

LFP - Live Fire Pricks...
Talent must not be wasted.... Those who have talent must hug it, embrace it, nurture it and share it lest it be taken away from you as fast as it was loaned to you.

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Big Tuna » Apr 16 2011 2:09pm

liveforphysics wrote:
Arlo1 wrote:Bahahaha You Stressed the motor a bit all right!
LMFAO

I do tend to lean on things a little harder than most folks.

Hit it with the house buddy :wink:
The greatest threat to established thinking is those who are willing to try anything.

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by salty9 » Apr 16 2011 3:57pm

I think he was just trying to see if it were Lukeproof :mrgreen:

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by SplinterOz » Apr 16 2011 9:51pm

I think that one is cooked... get the next one :mrgreen:

It is sometimes good to test things to failure.
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by liveforphysics » Apr 17 2011 1:30am

Big Tuna wrote:
liveforphysics wrote:
Arlo1 wrote:Bahahaha You Stressed the motor a bit all right!
LMFAO

I do tend to lean on things a little harder than most folks.

Hit it with the house buddy :wink:

Thank you Tuna. You taught me the finer points of stressing parts everything. :)

Wish you had been my crew today bro. I needed your master crewchief skills.
Each carcinogen vapor exposure includes a dice roll for cancer.

Each mutagen vapor exposure includes a dice roll for reproductive genetic defects in your children.

Each engine start sprays them into a shared atmosphere which includes beings not offered an opportunity to consent accepting these cancer experiences and defective genetics life experiences.

Every post is a free gift to the collective of minds composing the living bleeding edge of LEV development on our spaceship.

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Doctorbass » Apr 18 2011 1:34pm

Now, maybe it's time to do the same with one of those RC motors :twisted: :twisted: :twisted:


Plus... they are 5 times less expensive than hub motor... so you have more show for the money!!! !!

At the isane speed they rotate and with their OEM vented holes i'm sure it would look like this:

Image

:mrgreen: :mrgreen: :mrgreen:

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Arlo1 » Apr 18 2011 4:55pm

Awesome doc!
Im sure thats what luke hopes to achive everytime he rides/drives something!
He is in someways a great engineer and in otherways..... Well see you in a couple months for a race luke ;)
My Leaf motor controller build. http://endless-sphere.com/forums/viewto ... 27#p963227
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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!!!
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by auraslip » Apr 19 2011 1:43am

Excuse my ignorance, but what exactly killed the motor? The heat obviously, but what did it kill? The phase cables and the hall sensors? Did the copper melt? Did the magnets go past their Curie temperature and lose their magnetyness? (trying to sound like I don't know what I'm talking about here because I don't)

Is it possible to rebuild this motor?

Hate to see all your hard work destroyed with out even a good ride on it....
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by John in CR » Apr 19 2011 3:07am

auraslip wrote:Excuse my ignorance, but what exactly killed the motor? The heat obviously, but what did it kill? The phase cables and the hall sensors? Did the copper melt? Did the magnets go past their Curie temperature and lose their magnetyness? (trying to sound like I don't know what I'm talking about here because I don't)

Is it possible to rebuild this motor?

Hate to see all your hard work destroyed with out even a good ride on it....
They pumped 40hp of electricity into the motor and only got 10hp of work out of it. The other 30hp turned into heat, mostly in the windings. That's over 20kw of heat :shock: , which caught the wire varnish on fire shorting the phases for those beautiful plasma flashes. If you're going to burn up a hubbie, you might as well do it right. :mrgreen:

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by nieles » Apr 19 2011 5:20am

John in CR wrote:They pumped 40hp of electricity into the motor and only got 10hp of work out of it. The other 30hp turned into heat, mostly in the windings. That's over 20kw of heat :shock: , which caught the wire varnish on fire shorting the phases for those beautiful plasma flashes. If you're going to burn up a hubbie, you might as well do it right. :mrgreen:
so the controller was be able to limit the current to the phase wires when shorting? that means mabye this controller can even withstand one of the big outrunners wihtout blowing the fets.

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Arlo1 » Apr 19 2011 9:20am

John in CR wrote:
auraslip wrote:Excuse my ignorance, but what exactly killed the motor? The heat obviously, but what did it kill? The phase cables and the hall sensors? Did the copper melt? Did the magnets go past their Curie temperature and lose their magnetyness? (trying to sound like I don't know what I'm talking about here because I don't)

Is it possible to rebuild this motor?

Hate to see all your hard work destroyed with out even a good ride on it....
They pumped 40hp of electricity into the motor and only got 10hp of work out of it. The other 30hp turned into heat, mostly in the windings. That's over 20kw of heat :shock: , which caught the wire varnish on fire shorting the phases for those beautiful plasma flashes. If you're going to burn up a hubbie, you might as well do it right. :mrgreen:
They pumped 40Kw (53.6hp) into that motor!!!! :)
My Leaf motor controller build. http://endless-sphere.com/forums/viewto ... 27#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!!!
Support me on Patreon. https://www.patreon.com/user/posts?u=6842045
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Arlo1 » Apr 19 2011 9:22am

nieles wrote:
John in CR wrote:They pumped 40hp of electricity into the motor and only got 10hp of work out of it. The other 30hp turned into heat, mostly in the windings. That's over 20kw of heat :shock: , which caught the wire varnish on fire shorting the phases for those beautiful plasma flashes. If you're going to burn up a hubbie, you might as well do it right. :mrgreen:
so the controller was be able to limit the current to the phase wires when shorting? that means mabye this controller can even withstand one of the big outrunners wihtout blowing the fets.
I cant remember if this was lukes sevcon controler or the big Kelly but yes it would work for collossus its just that both kelly and sevcon controlers are not cheep!
My Leaf motor controller build. http://endless-sphere.com/forums/viewto ... 27#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!!!
Support me on Patreon. https://www.patreon.com/user/posts?u=6842045
http://www.undergroundelectrics.ca/

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by liveforphysics » Apr 19 2011 1:57pm

Arlo1 wrote:
nieles wrote:
John in CR wrote:They pumped 40hp of electricity into the motor and only got 10hp of work out of it. The other 30hp turned into heat, mostly in the windings. That's over 20kw of heat :shock: , which caught the wire varnish on fire shorting the phases for those beautiful plasma flashes. If you're going to burn up a hubbie, you might as well do it right. :mrgreen:
so the controller was be able to limit the current to the phase wires when shorting? that means mabye this controller can even withstand one of the big outrunners wihtout blowing the fets.
I cant remember if this was lukes sevcon controler or the big Kelly but yes it would work for collossus its just that both kelly and sevcon controlers are not cheep!

It's a 42fet controller with 150v fets in it.

This hubmotor is roughly 1/15th of the stress on a controller that the colossus motor would put on a controller. (going from phase resistance and inductance differences).

Essentially, running power to a big hub is a cakewalk (which is why I chose a hubmotor). Running power to a big RC motor is a challenge. I think this controller would do as well as anything on the market right now, but I think it would pop it at low RPMs if you loaded it hard.
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Each mutagen vapor exposure includes a dice roll for reproductive genetic defects in your children.

Each engine start sprays them into a shared atmosphere which includes beings not offered an opportunity to consent accepting these cancer experiences and defective genetics life experiences.

Every post is a free gift to the collective of minds composing the living bleeding edge of LEV development on our spaceship.

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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by Doctorbass » Apr 19 2011 2:00pm

luke.. have you any pic of the inside o fthe sevcon??
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Re: race ebike on dyno, flames and plasma! 40kw IN, 10hp OUT

Post by liveforphysics » Apr 19 2011 2:05pm

Doctorbass wrote:luke.. have you any pic of the inside o fthe sevcon??

Yes. Explicit photos of everything inside the case.

It's 6 rows of 7 TO-220 fets in parallel. It runs the infinion brand 150v FETs, which are actually pretty good stuff. Lots of good cap. Hall-effect based current sensors on 2 of the output phase legs. It's a pretty solid piece.
Each carcinogen vapor exposure includes a dice roll for cancer.

Each mutagen vapor exposure includes a dice roll for reproductive genetic defects in your children.

Each engine start sprays them into a shared atmosphere which includes beings not offered an opportunity to consent accepting these cancer experiences and defective genetics life experiences.

Every post is a free gift to the collective of minds composing the living bleeding edge of LEV development on our spaceship.

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