ebike Motor stuttering and jerking from time to time

[Chaser]

My ebike motor is stuttering and jerking, I'm wondering if there is any way to tell if it is the motor or the motor controller causing this problem?

 

[Edwardo]

It could be a loss of connection. I have seen an ebike bottle battery that broke internally and caused the same problem whenever the connection was lost.

 

[bray]

A faulty hall effect sensor can also cause this problem.

 

[BobW]

Check that the brake lever isn't cutting off power to the controller, or any loose connectors. When does this happen? If when you hit a bump in the road, or anything else.

 

[Will_bridges]

Check that the brake lever isn't cutting off power to the controller, or any loose connectors. When does this happen? If when you hit a bump in the road, or anything else.

Hi I have this same issue it happens when just riding on normal surfaces like pavement or roads but happens more when going up hill

 

[hugh]

One of my trikes was doing that, turned out the battery was making a poor connection to it's cradle. That battery is what I think is called a dorado style, might be wrong on that but it loads from the side. The fix was using a couple velcro straps wrapping around the battery and frame to keep it tight. Plus I have moved that battery over to another homebuilt and positioned it in a direction where down makes the battery fit into it's socket naturally.

 

[Breath1]

Hi I have this same issue it happens when just riding on normal surfaces like pavement or roads but happens more when going up hill

I have the same issue with a Bafang mid drive ultra G510 1000w motor. It happens when going up an incline. I haven't found an answer for it yet. How can I check if the problem is the hall sensor?