Ohbse said:
Once you've had one, it's bloody hard to go back.
Absolutely. I'm stuck now either borrowing my son's short range slow ebike (90kph max) that has a 12F Nuc or my 110kg scooter (130kph max) with a 70's Cadillac type of ride on small tires with it's dual 12F's, while my other faster rides sit parked just keeping an eye not to let battery voltages get too low.
I am going to give dual FOC PV's a try only because Vasily at Nucular has too much to do before high voltage Nucs become a reality, and now that I've experienced FOC and torque throttle and variable regen I crave it for my MadAss. Plus I can boost up the current from the limitations of my old Zombiess custom high voltage 24's that have served me well, but on the 40kg+ heavier bike than my old SuperV I don't get the same "slaughter anything in sight" launches that I miss. The PV bluetooth interface is a big step up from the old connecting my bike to a computer only to have very limited tuning adjustments, but I'll use the CA3 already on board for my display and consumption stats.
Using the Nucular display to program things, and the self setup including hall sensor position correction is the berries, especially with a 6 phase motor requiring dual controllers. It used to be a relax and drink a beer or two to get wiring right with as many as 12 wire swaps and jumper wires everywhere to make swapping easy to get dual controllers going. Now with the Nucs I can hard wire everything except the hall connectors. Turn one controller on, set the poll pairs to 10, and run auto setup. If it spins in reverse, swap 2 halls (or phases if that's easier for you), and run auto setup again and that controller is done and disable it's input. Turn the other controller on and repeat the process. Enable the first controller again and wiring is done. Then simply configure the current limits for power and braking, battery, and whatever else you want to do before you ride...Save settings and go.
Sure there are so many features and settings that there's a bit of a learning curve to get things perfect, but it's all pretty clear and straight forward thru the display, and Nucular support is good if you have problems. The feature list is so long that a bit of complexity and a small learning curve for setup is unavoidable.