Hubmonster 94% efficient 7kw NO LONGER FOR SALE
- Thread starter John in CR
- Start date
gensem
100 kW
hillzofvalp said:
Im far from being an engineer... that why im making some wooden swingarm extensions. Just to check out how my ideas will turn out before welding. Im not worried about the wheelbase the caster angle and cg does worries me.
Btw my front wheel is also 17" thats end up having a 22" OD and the rear tire should be about 20" if you do plan to extend the swingarm thats easy to offset.
gensem
100 kW
Arlo1 said:
But I got no batteries for the next 2 months....
Are you still on? haha
John in CR
100 TW
Arlo1 said:How fast can someone send me a motor and lend me some money?I have everything incl multiple controllers and 1.5kw of good packs ATM. But... I need to quit hording and get some projects finished.
Sounds like barter time. Pairs of sine controllers with real torque throttle that can deliver peaks of up to 150A battery 300A phase at 100V or higher get my attention.
John in CR
100 TW
hillzofvalp said:
Yeah, you're right at the limits there. You probably have some flexibility on the front, and on the back I think a fender can mask the size difference. No, the tire doesn't stretch when inflated, though it might round up a bit.
2 New set of boards come in 2 days ago I'm aiming for 84v 350 phase on the first 30s or 40s on the next. So lets see how this goes!John in CR said:Arlo1 said:How fast can someone send me a motor and lend me some money?
Sounds like barter time. Pairs of sine controllers with real torque throttle that can deliver peaks of up to 150A battery 300A phase at 100V or higher get my attention.
John in CR
100 TW
Arlo1 said:2 New set of boards come in 2 days ago I'm aiming for 84v 350 phase on the first 30s or 40s on the next. So lets see how this goes!John in CR said:Arlo1 said:How fast can someone send me a motor and lend me some money?
Sounds like barter time. Pairs of sine controllers with real torque throttle that can deliver peaks of up to 150A battery 300A phase at 100V or higher get my attention.
Modded for ventilated cooling and put in a mid-drive, then 30-40s 350 phase X 2 and I can start going head to head against sport bikes. That's the kind of bike that could get me killed, but at least I'd die with a smile.
gensem
100 kW
Front tire will be a little wider and the swingwarm will be 7cm shorter and 2cm wider to acomodate the tire.
Opinions on the caster angle and CG?
Opinions on the caster angle and CG?
John in CR
100 TW
Gensem,
You're gonna be rippin. Don't forget some shorter cranks. Any decision on batteries?
You're gonna be rippin. Don't forget some shorter cranks. Any decision on batteries?
gensem
100 kW
CG will be somehow higher... the picture is supposed to show the clearance I ll have with batteries and me on it.
I ll just use a cheapo bb and crank coz its just silly to add a freewheel and chain to it.
Will probably weld something in a couple weeks. I like to look at it everyday coz something wrong might just come to my eyes.
Batteries are probably going to be A123 pouchs unless something dramaticaly changes in the battery world from now to may (coz I hardly see me riding the black mamba sooner)
And no... I ll not ride it with the wooden swingarm... haha
I ll just use a cheapo bb and crank coz its just silly to add a freewheel and chain to it.
Will probably weld something in a couple weeks. I like to look at it everyday coz something wrong might just come to my eyes.
Batteries are probably going to be A123 pouchs unless something dramaticaly changes in the battery world from now to may (coz I hardly see me riding the black mamba sooner)
And no... I ll not ride it with the wooden swingarm... haha
agniusm
1 MW
That looks great. Cool bike you are working on. Are you going to register it some how or there is no issue driving such vehicle in Brasil?
John in CR
100 TW
I was lucky enough to snag 3 of Zombies Super24 controllers with the matched 4115's and good caps, so I'm pulling mine off for ventilating. He thinks they'll handle 300A peak phase current each, so they should be fine at 150A battery and 210-250A phase. I just gotta figure out how I'm going to charge the additional 10-13s that I'll put in series with my 20s pack. Even with 10s additional that should put me about 110V with sag, so even at the battery side current limit I have now of 210A of the combined controllers that's 23kw, and 33kw if I step it up to 150A per controller. 
That will put my no-load speed with a tire on somewhere between 170 and 180kph, so we'll just have to see how much wind resistance loads it down. I hate to even speculate. With a no-load of 120kph I get to 105kph on the road with fresh batteries, but I'm sure that ratio can't hold up. Whatever it tops out at will be a whole lot faster than I like to go, so those speed runs will be just for you guys.
John
That will put my no-load speed with a tire on somewhere between 170 and 180kph, so we'll just have to see how much wind resistance loads it down. I hate to even speculate. With a no-load of 120kph I get to 105kph on the road with fresh batteries, but I'm sure that ratio can't hold up. Whatever it tops out at will be a whole lot faster than I like to go, so those speed runs will be just for you guys.
John
gensem
100 kW
agniusm said:
Not sure if its possible to register it as an eletric bike or something alike. When its done i guess i ll find out pretty fast if the police cares about it or not.
Either way i want to avoid having a plate number... speeding tickets do not tease me.. hehe.
John in CR
100 TW
They'd have to catch you to give you a ticket. Just because they have higher top speed, I doubt they could use any of it in the city 
Your silence and higher average speed would make you quickly disappear. What we need to avoid is high power electric bikes getting in the hands of bad guys. To me that's the one thing that could cause a real crackdown on us as long as we ride with good manners.
Your silence and higher average speed would make you quickly disappear. What we need to avoid is high power electric bikes getting in the hands of bad guys. To me that's the one thing that could cause a real crackdown on us as long as we ride with good manners.This is why my friends in sub-Saharan Africa want a super high powered ebike. Getaways in silence, and remote solar charging. Definitely more useful in city, but there are also places a DH bike can go where no truck can go.John in CR said:They'd have to catch you to give you a ticket. Just because they have higher top speed, I doubt they could use any of it in the city
John in CR
100 TW
xenodius said:This is why my friends in sub-Saharan Africa want a super high powered ebike. Getaways in silence, and remote solar charging. Definitely more useful in city, but there are also places a DH bike can go where no truck can go.John in CR said:They'd have to catch you to give you a ticket. Just because they have higher top speed, I doubt they could use any of it in the city
To avoid bad guys I hope.
The ambient temps are going to require special considerations, especially for high power, or do they just want electric assist? If the budget for solar isn't sufficient for the much more expensive thin film panels, then I've got solar modules they'll want. How much solar charge power do they want to carry per bike?
John in CR said:
The LRA definitely qualify. It'd be almost impossible to get anything down to them at this point, but I do know that they'll be going back again in a few years. I think they'd need at least 2 square meters of panels. Insolation is high there but they'd need a long range pack anyway. And cost isn't a huge concern, as they are wearing $40,000 in gear at any given time... but if I built them an EV, it may end up being a donation. We'll see.
hillzofvalp
100 kW
John in CR said:I was lucky enough to snag 3 of Zombies Super24 controllers with the matched 4115's and good caps, so I'm pulling mine off for ventilating. He thinks they'll handle 300A peak phase current each, so they should be fine at 150A battery and 210-250A phase. I just gotta figure out how I'm going to charge the additional 10-13s that I'll put in series with my 20s pack. Even with 10s additional that should put me about 110V with sag, so even at the battery side current limit I have now of 210A of the combined controllers that's 23kw, and 33kw if I step it up to 150A per controller.
That will put my no-load speed with a tire on somewhere between 170 and 180kph, so we'll just have to see how much wind resistance loads it down. I hate to even speculate. With a no-load of 120kph I get to 105kph on the road with fresh batteries, but I'm sure that ratio can't hold up. Whatever it tops out at will be a whole lot faster than I like to go, so those speed runs will be just for you guys.
John
This is what I like to hear, for sure. I'm more interested seeing when the thing hits saturation.
John in CR
100 TW
Saturation isn't a finite point, though full saturation is. Full saturation is an irrelevant point that I hope no motor I own ever reaches. I'm more interesting in staying well away from saturation, and feeling barely warm controllers and motor running 150A peak battery current with voltage sagging to somewhere north of 120V. I also want to see a nice low no-load current fresh off the charger with 30s or greater. Most of all, I want to feel the torque throttle function of a CA3 work as well or better than hoped.
John
John
John in CR said:
A question... is the current based throttle on the CA equivalent to the "torque" throttle of overpriced commercial controllers? I also like the idea of a speed based throttle. Though a torque based throttle would be better for fast acceleration while already cruising, I imagine... however, for tootling around I like the idea of "memorizing" a throttle position relative to speed.
Also, if my math is correct... a sinusoidal-controlled 3-phase motor is only ~3% more efficient than a cheaply controlled 6-phase motor like this one... and that difference all but disappears when you're actually moving. I'm damn sure I'm not going to wait for any sinusoidal controllers... I'm going with the CA3 (Gotta love OLED's anyway) and a pair of Lyen's controllers. Plus the only promising (yet repeatedly delayed) sinusoidal controller hitting mass production is overpriced, supported by Russians who I can't understand, and is limited to 100V since it uses 4110's.
I'm already applying to new jobs... hopefully, I'll get a position as a technician at the local genomics lab and won't even have to move. The next several months will be exciting! Who knows what wonderful EV I might own in a years time?!
Here's hoping!John in CR
100 TW
Xenodius,
I don't think sinusoidal will make much difference with these motors either, but don't write them off quite yet. I expect a batch of custom order sine wave controllers to be in route to me for testing late this week or early next week. We're now a Grin Tech distributor, and whether or not the sinus boxes work out we'll have package deals that can't be matched in terms of power per $, not even close.
John
I don't think sinusoidal will make much difference with these motors either, but don't write them off quite yet. I expect a batch of custom order sine wave controllers to be in route to me for testing late this week or early next week. We're now a Grin Tech distributor, and whether or not the sinus boxes work out we'll have package deals that can't be matched in terms of power per $, not even close.
John
Lebowski
10 MW
You have to keep in mind there's nore going on with the typical sinusoidal controller versus a trapezoidal
controller. Typically the sine wave ones run a more advanced Field Oriented Control (or variant there of)
algorithm, meaning also the timing is way more optimum than that of a trapezoidal controller. This gives
an ever greater advantage in efficiency than purely just waveform based, especially for high e-rpm motors.
controller. Typically the sine wave ones run a more advanced Field Oriented Control (or variant there of)
algorithm, meaning also the timing is way more optimum than that of a trapezoidal controller. This gives
an ever greater advantage in efficiency than purely just waveform based, especially for high e-rpm motors.
John in CR
100 TW
I hope it makes a big difference. Imagine how efficient they might get...maybe over 100% . But seriously, any efficiency increase is always welcome, and coming with even less noise is a plus too.
. But seriously, any efficiency increase is always welcome, and coming with even less noise is a plus too.Similar threads
