Farfle wrote:Hmmm, freezing ass cold garden hose water sprayed on the heatsink should do the trick. What is the cont phase amps on the baby controller Luke?
If you can control temps on that controller (which isnt always easy), I believe you can do 240 or 260 phase amps continuously. If you can control temps, it automagically dials back current to protect itself.
thanks, that might be enough to find the upper limits of this motor at a near stall rpm. Lets say with shoddy thermal paste and a fan blowing on it it could to 220A for the duration.
Using the calc on this page it is giving me .341 ohms per 10m for one strand of 18awg at 180C
.341 ohm / 15 strands is .0227 ohms lead to lead.
p=i^2R 220^2 x .0227 is 1098W of heat.
On second thought, might not be able to push this motor to its limit with the little guy Luke
Farfle wrote:Yeah, I like the 3nm starting point, that puts it in the ebike realistic realm, puts your motor at 3.16 nm, and mine at 5.72nm both realistic goals. I think flux gap area and radius may come into play, but then we end up in a formula nightmare
Yeah, let's keep it simple. Can we devise an algorithm that's self-correcting for the weight differential
doh, I meant 3.16 nm/kg and 5.7nm/kg , not just nm lol
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb
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