multiple escs on 1 motor

[ejonesss]

i read now you can get a 300 amp rated esc Turnigy Fatboy 300A at

http://www.hobbyking.com/hobbyking/store/__17392__turnigy_fatboy_300a_esc_5_15s_opto_.html


unfortunately the $300+ price and more importantly

WARNING
This ESC is suited to R/C model applications only. Do not attempt to use it to power Push Bikes, Mountain boards, go-karts or similar machines. The programming logic is only designed for R/C Plane and Heli use. No warranty will be offered for incorrect use of this item.


discourages me from even trying that esc for ebike use since "designed for R/C Plane and Heli use" makes it somewhat obvious that if it fails they can figure out it was used on ebike since aircraft puts very little mechanical load/resistance on the motor even if you decide to try to omit certain info and try to cheat them.

so i was thinking if you get 2 or more identical lower amp rated escs can they be paralleled on all wires battery, throttle input, motor outputs and if it is sensored then the sensor wires would that work or would the phase not quit sync up and load the other ones unevenly or even short the outputs?


i ask because you can get some 100 and 200 a fairly cheap at hobbyking.

 

[Dauntless]

unfortunately the $300+ price and more importantly

WARNING
This ESC is suited to R/C model applications only. Do not attempt to use it to power Push Bikes, Mountain boards, go-karts or similar machines. The programming logic is only designed for R/C Plane and Heli use. No warranty will be offered for incorrect use of this item.


discourages me from even trying that esc for ebike use since "designed for R/C Plane and Heli use" makes it somewhat obvious that if it fails they can figure out it was used on ebike . . .i ask because you can get some 100 and 200 a fairly cheap at hobbyking.

The idea is you're not supposed to use ANY of that RC equipment on your bike. I remember bringing this controller and that warning up here maybe a year ago.

These cheaper controllers you're talking about are even more vulnerable to the strain of the ebike.

 

[ejonesss]

the idea of paralleling the outputs of multiple escs is to distribute the load across many escs so the load is less.

it is done for fets inside a ebike controller you will find that all the d's and s's are tied together so many fets can be used to handle the load.

unfortunately the $300+ price and more importantly

WARNING
This ESC is suited to R/C model applications only. Do not attempt to use it to power Push Bikes, Mountain boards, go-karts or similar machines. The programming logic is only designed for R/C Plane and Heli use. No warranty will be offered for incorrect use of this item.


discourages me from even trying that esc for ebike use since "designed for R/C Plane and Heli use" makes it somewhat obvious that if it fails they can figure out it was used on ebike . . .i ask because you can get some 100 and 200 a fairly cheap at hobbyking.

The idea is you're not supposed to use ANY of that RC equipment on your bike. I remember bringing this controller and that warning up here maybe a year ago.

These cheaper controllers you're talking about are even more vulnerable to the strain of the ebike.