ebike motor pulses/

[vica]

Hi,
The motor on my ebike doesn't turn. Only pulses. There is no change when I unhook the brake connector or hall effect sensors. BTW, one hall effect sensors changes from 5V to 0V as I turn the wheel. One of the other hall effect sensors is always at 5V. The 3rd hall effect sensor is always at 0V. When I disconnect the wires from the controller to the motor and measure the voltage at the controller on each wire with respect to ground and the throttle at max 2 of the 3(blue and yellow) measure 47VDC. But the voltage is 0V from the blue wire to ground. Any help would be appreciated.

 

[Deleted member 4366]

You need to tell us what motor or bike it is. when you measured the hall sensors, did you turn the wheel backwards?

 

[vica]

Hi,
The motor on my ebike doesn't turn. Only pulses. There is no change when I unhook the brake connector or hall effect sensors. BTW, one hall effect sensors changes from 5V to 0V as I turn the wheel. One of the other hall effect sensors is always at 5V. The 3rd hall effect sensor is always at 0V. When I disconnect the wires from the controller to the motor and measure the voltage at the controller on each wire with respect to ground and the throttle at max 2 of the 3(blue and yellow) measure 47VDC. But the voltage is 0V from the blue wire to ground. Any help would be appreciated.

The brand is "Cozybike". The motor controller is: WZKB4815KA-JID.
The motor is: XD4811A1036.
As far as the hall effect sensors, it doesn't matter which way the wheel spins.
Thanks for the interest.

Vic

 

[Deleted member 4366]

The brand is "Cozybike". The motor controller is: WZKB4815KA-JID.
The motor is: XD4811A1036.
As far as the hall effect sensors, it doesn't matter which way the wheel spins.
Thanks for the interest.

Vic

Ok. clearly the hall sensors are faulty, but one would have to ask why? Normal reasons would be an overheated motor or a short in the motor wire harness. your cable looks pretty well protected, but it could have been done when someone took the wheel off to fix a puncture or change the tyre.

Whatever the cause, that often leads to consequential damage to the controller (blown mosfets), especially if you gave it full throttle for any length of time while it can't turn the motor.

Unless you want to dismantle the motor to find where or why the hall sensors don't work, you could try a sensorless controller, but you'd have to do a bit of wiring and figuring out to get your speedo and everything working properly. Panda were selling some nice ones with LCDs but where would you put the LCD? Your bike is all wired up to your instrument cluster, which makes any alternatives tricky. I'd need to see a complete wiring schematic to be able to give any exact recommendations.