Recent content by laapmetot

Actually the phase change (evaporation of the water) has much more cooling effect. Maybe an idea to use dryice, or CO2 canisters. This is done on intercoolers for turbo applications. Lots of cooling due to phase change liquid to gas, large pressure drop which also cools, no conductivity and no...

Did manage to improve a little bit. I got some info from Arle1 but unfortunately this didnt result in more power. So it seems this is it, around 32kW at the axle. Less then I hoped for, more then I had. Now going to the track and experience the result! Thank you all for the support, especially...

Thanks for your input c70r! Indeed this is the 4turn motor for the 66V zero at a single gen4size6. I was thinking my 86Vnom is fairly low so this motor would need less field weakening so runs less hot. For motor parameters there was not as single thing different between the dcf from nuxland...

Hi Bjork I asked him on PM, but as far as I can see he has a dual sevcon setup which is not comparable I'm afraid.

well, I managed to combine the best of both settings: the higher lowend torque and the higher topend power. Turned out there was no voltage cutback (or anyway not this time when I looked;-) so I increased the peak torque from 120Nm to 165Nm. This resulted in high pitched whine and errors. I cut...

Did the comparisons. I didnt do all screens since I dont think fi contactor data does anything for power. That works, or it doesnt. what I found: Peak torque 120 vs 165Nm. Will increase the value. Rated stator current 550 vs 420A Will increase the value. Proportional gain 0.0625 vs 0.03125. No...

this is the 3 separate dyno graphs, and one combined. Remember these are actual measurements at the wheel, not the battery. ME1616 18kw it basically falls flat on its face at higher rpm zero 75-7 66V based on drbass dcf 33kW while drawing 50kW from the battery. Lower end is weak...

No idea! In the process of finding that out.

Nuxland is already a big help! First lets see if we get the 50kW out, then we can see how much we need to dial back. I also like the alternative cooling system, definitely going to look into that, but first things first.

Great work nuxland on the kart! I'm also running a zero 75-7 with a gen4size 6 sevcon. Its not slow, but not nearly as fast as yours..... It draws 350 battery amps while on video I see yours instantly draws 600 battery amps. Would you be willing to share your dcf or do you have some pointers?

Unfortunately we couldnt get the curtis to work. Endless faults and issues and our distributor is not really helpful, so we gave up on that and are stuck with the sevcon. Now we swapped the motenergy for a 75-7 66V zero motor. Feels better already but compared to the kart from nuxland its...

found an 75-7 low voltage so I'm happy!

Selling because the leaf motor is too large for my kokart project and I cant get this controller to work with another PMAC motor. Complete working set which contains: - nissan leaf motor with resolver - resolver to encoder interface board - P&S 200kW controller configured for this set. -...

unfortunately no progress. it works perfectly with the leaf motor, I just dont have the ability to modify the software and cant find a proper specialist to help. Its now for sale as a complete working set with the leaf motor, check out the for sale section...

totally agree, however availability is a problem.....