EVG Ebike controller

[omarpitraswaqar]

Hey i'm working on this 24 volt Ebike made by EVG 1999

wondering, can i put two of these 400 watt heinsman motors on the same bike with one controller and battery?

so i took apart the controller to check it out

and i noticed there is a second slot just like a a computer where a second IEC could go.

what, did they offer a controller upgrade of some type? if so I have two of these controllers can i add more IEC?

it seems strange that this motor is so limited in speed.

if anyone has any experience in modifying these stock controllers it would be very appreciated.

 

[dogman dan]

I know nothing about the controller, but the voltage combined with the motor winding and gearing limits your speed.

Two motors won't be faster, just more watts.

They can, with care, be run at 36v. Just don't go climbing big mountains, and leave the overheat circuit in the motor working.

I'd suggest a 36v 20 amps controller as the max. I fried a heinzmann motor very quick with 36v 35 amps, and the overheat cutoff disabled.

 

[omarpitraswaqar]

I know nothing about the controller, but the voltage combined with the motor winding and gearing limits your speed.

Two motors won't be faster, just more watts.

oh. i guess i assumed more power meant more speed. thanks for correcting me. i wonder what the advantage of all wheel drive electric bikes is then, and may be they use two controllers independently seems strange, what if i was making a front wheel drive electric car with hub motors? may be when i replace the old heinsman motor with something better i can turn it into an electric unicycle...lol

 

[MitchJi]

Hi,

Two motors, two controllers, one throttle.

 

[omarpitraswaqar]

I wonder what the second IEC slot is for then.

 

[amberwolf]

I don't know-I recently ran across my EVG controller last week; I'd wondered abotu taht before when i got the controller.

I didn't have a second one to go in there, or I probably woudl've just tried it.

You could trace the wiring on it and see if thsoe slots are all wired in parallel. If so, then any cards placed in tehre are going to run the same, be fed teh same signals, and feedout teh same things,all in parallel.

So then you could trace out the stuff on the cards and see if they look like they'll operate in parallel.

Or, you could just make sure one bike is in working condition, try it with one card, and then try it with two and see what happens.

But I refute any responsibility for smoke, fire, explosions, or speeding tickets.

 

[omarpitraswaqar]

I probably woudl've just tried it.

yeah i thought about it, but i want to have at least one functional bike until i upgrade all the bits. on a side note i scored a junk giant suede e bike for free with a front brushless motor and still good battery, so i turned the frame into a lowrider to sell now i finally have two battery packs ... and tons of useless controllers YAY!!!!

 

[amberwolf]

"useless" controllers are always handy to have around, for parts to fix others with if nothing else.

Also for testing other bits with without having to do it on your running bike.

Eventually, good for making other bikes to either sell or to let friends ride.