Two ebike motors with one controller

Gawain Tomlinson

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I have a heavy duty utility trailer that I do almost all of my grocery shopping with. On a big shopping day I can haul up to 100 pounds in the trailer. I live in a part of San Diego that has some steep hills. I would like to put a motorized assist on the trailer.

I considered using a go-cart or lawn tractor differential, but that would be a pain to implement with live axles and all that.

It would be far easier to just buy two 20" pre-motorized wheels. My question is, can two motors be wired in parallel on one controller? I would just wire the second motor to run in the opposite direction. If the motors have sensors, I would only connect one set of sensors.

Attached is a drawing of what I have in mind. Never mind the details of the controllers. I am agnostic about controllers as long as I can make it work.

Two ebike motors one controller diagram.jpg
 
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