My Electric Trike

Sandman_bm

Finding my (electric) wheels
Sep 13, 2014
15
7
75
Hi all, having added a hub motor to my partners trike after she rode one of Twinkles machines, I have started building two touring trikes for a trip round the Netherlands,I am using Q100 motors as a mid drive with drive sprocket on the disc mount side to a jackshaft then across to a normal 3 ring crankset minus pedals of course, those are at the pointy end.
I have one problem which again seems to mean making my own is the throttle twistys and thumb throttles are just ergonomicaly no use on a trike with bar end shifters and upright steerers so waiting on Hall effect devices to arrive to put in my own push button casing, pics of build to date if anyone is interested, the motors go in the gap in front of the rear wheeljust looking.jpgFolded.jpg
Q100 motor
S12S controller
pedal assist thingy
gearing as yet to be decided
regards
john
 
D

Deleted member 4366

Guest
S12S controller is a bit dodgy with a Q100. I hope you know what you're doing. Is it a 328 rpm Q100?
 
D

Deleted member 4366

Guest
Is it because you want to use 48v, which will give a speed of 25 mph?
 
D

Deleted member 4366

Guest
Hi Dave
what are the problems with the controllers

regards emma
They give 23A, which is normally too much for a Q100. You might get away with 20A at 36v. I've done 17A at 12S before, and I'd stick to 15A at 48v.

You can cut the current down a couple of amps in the LCD, or if you want to go further, you can put a few crimps in the shunt. for that you need a wattmeter to see how far you've gone.
 

Sandman_bm

Finding my (electric) wheels
Sep 13, 2014
15
7
75
Keep us updated how it performs.
The goal is not speed but assist with trailer on the trike hence the involved gearing plus if it dosnt work I can put the motors in a wheel :) I have the lcd so the tip about current limiting there and crimping the shunt a good to know, thanks
regards
John