Repair - how to 'fake' a good PAS signal?

[wleatlanta]

so i have a cheap chinese ebike

it will not 'go'

i suspect the PAS
it has the regular yellow/ground, red/5V, blue/signal wires

what is the controller looking for, on the blue?

i tried 5v with various pulse widths, it did not make the wheel 'go'


wle

 

[wleatlanta]

also if the hall effect sensors in the wheel [3 phase hub motor] did not work, [or just 1], would that cause the wheel not to 'go'?

i thought i read that they only make starting easier and are not really necessary

wle

 

[saneagle]

Sometimes the blue, yellow and red combinations have blue ground instead of yellow, so try it with those swapped.

If your motor has hall sensors in it, you should do a hall sensor test befor anything else to see if they are working.

When a hall sensor in the wheel doesn't work, the motor will not turn if you're using a normal controller for sensored motors.

Some controllers are dual mode (sensor/sensorless). They will work if you leave the hall sensor connector disconnected. Some of them have self learning/identification wires, in which case the controller will need to do the self-learning procedure with the self-learning wires connected to figure out what the motor is before it'll work.

Some controllers are for sensorless motors. They should work with just the three phase wires connected.