Recent content by Scootiggy

I tried using a pot between the EBK line and ground, was able to vary the voltage on the input, but below a certain threshold voltage the regen brake just slams on fully - no way to vary the braking force. <stumped>

And here are some more photos of the controller board, in case anyone needs them. They are two identical controllers after all, just mounted on the same PCB...

So I decided to take everything apart and have a good look. Attached are my findings in a pdf. I added 5 extra wires to the controller, which give me the option of: 1) Driving the motor in reverse using a pushbutton (the scooter is very heavy to manoeuvre, especially on slopes). 2) Switching...

@John in CR: Do you have any 3-4kW 6-phase 72V controllers for the HubMonster with regenarative braking still available? Thanks!

Sorry to butt in, but I am trying to add regen to an XM-3100 19S 40Ah LiFePO4 build (with original 10" hubmonster), and was wondering whether @John in CR (or anyone else) knows whether the original 6-phase controller can be adapted for regen? I have no need for lots of extra power, just the...

So, I decided to break the seal and look inside the stock controller. Based on what I've read here and on visforvolts, I was expecting to see two identical controller boards in the housing. Instead, this is what I saw: Lots and lots of MOSFETS (24, I think) in two rows, a decent-looking...

Thank you, I looked at the hubmonster thread - that is very exciting! One question - how do you control the variable regen? Is there a "double-action" twist grip that accelerates in one direction, and reverses the current flow in the other (I guess like the Vectrix VX-1, although I am only...

I managed to pry back the heatshrink sleeving where the wires go into the motor axle. Looks like it is a 6-phase motor. Wires are conveniently colour coded - 2 white, the other 10 or so black...

Thanks very much @ridethelightning, I've attached some pics of the motor and controller. Apart from the 2 battery cables and the field and Hall cable to the motor, I identified 3 connections to the controller: 1) 2-pole, purple/orange: +12V supply from DC-DC converter 2) 3-pole...

Hi All, I am the proud owner of an XM-3100 from 2011 which has been converted (by a previous, unknown owner) to Thunder Sky Winston LiFePO4 (19 cells, 40Ah). The machine is great for my needs, but as I live in the mountains the brakes get very hot when going downhill. I would therefore like to...