litespeed
100 kW
I’m not sure how less amps could make more torques unless the MaxE was not properly tuned or the shunt was improperly set up?
Tom
Tom
Great News!csc said:Rear motor is now a qs273 4000w 4t (magnets gaps epoxied, sprayon coated, 20ml ferrofluid). Really huge acceleration and no heating. I bet on field weakening, based on the idea that the most challenging situation for an ebike is start and stop in a city, or high mountain climbing. This genearates more heat than FW on fast road according to my experience. Currently real on road max speed (at 82v) is 92 kmh, without knowing exactly what margin I have with the field weakening on the rear
Front motor is still a mxus 3k 3t, but it behaves very differently than with the max e. Much more torque, I had to reduce power to avoid burning the front tire too fast. Which makes me think I could keep it, as I was formerly thinking of a 4t for the front too
Clearly all what I thought about motor temp has to be reset. Rear saw no more than 45°c (ambient 18) (short distance under 15km) where the max e would have generated 80° at least with the rear mxus 3k 3t (rear takes the whole effort during accelerations). (would appreciate a way to check both motors' temps on the single display, currently you have to chose one motor or the other)
Can't say precisely what's the repartition of improvements between motors and controllers.
But it's a great combo !
Work in progress
csc said:Guys I don't know it's just a feeling
Maybe in 4 years of using max e I was never able to reach the good settings ?
The fact is that my front wheel is much torquier than before on the whole range (low and high speed)
csc said:I did a 60 km trip today, full throttle until the legal speed limits, and it's obvious : efficiency is higher than my previous 2x max e, as I spend the same amount of electricity than before but have a higher average speed, hyper much more torque, and less heat (rear qs273 "4000w" max temp was 69°C)
Began with 83v, came back with 73, top speed 102 kmh (with FW set at 40a in torque mode, maximum programmable being 100a), max power 16930w, wh/km 2929 (cumulation of both motors consumption)
Video uploading !
csc said:It's a 2wd setup ! Max battery amps around 175A /17 kw
https://www.youtube.com/watch?v=rvdG_aEzgGE&feature=youtu.be
csc said:Efficiency is really surprising
The power needed to maintain 100kmh is 82amps (battery) at 75 / 80v (around 30 amps front and 50 rear)
It's at least 30 amps less than the adaptto system with 2 x mxus 3t
At low speed consumption is equivalent but there's more torque, of course now there's a qs273 4000 on the rear so it's not simple to compare, but I would have expected a frankly bigger need in amps, which obviously is not happening.
Good move
VasiliSk said:redline2097 no stock, there is a queue. 6F production come first, than bms and 24F
VasiliSk said:added
bzhwindtalker said:First tests with the nucular
We are happy about the fetures, tuning and usability. We reached 180-190 phase amps no problem, no cutouts.