Why Can't The Rear Wheels Of An Electric Car Move?

1. The first thing to consider is that the brake pads may be too tight or the brake pads have fallen off. Completely relax the brakes. After checking, the brake rocker arm returns flexibly. But after relaxing, the rear wheel is still very tight, which means it is not a brake problem.
2. When riding an electric bicycle, the rear wheel suddenly locks up. It cannot move or push, and the rear wheel shakes. When the power is turned on, the rear wheel locks up when the handlebar is turned, but the electric vehicle is normal when unloaded.
Reasons: The controller is broken or the phase is incorrect or short-circuited, the phase wire is heated, the insulation is melted, and the phase wire is in poor contact; the phase wire is short-circuited, making it difficult to push the wheel; the brake handle electronic switch does not return; the brake signal line and the steering handle signal line are worn The ground iron is short-circuited; or the brake pad is damaged. Is the screw holding the brake loose?
3. Are the motor bearings (or motor magnetic cylinders) damaged?
4. Is the controller damaged (note: if the controller is damaged, the rear wheels will not lock).
5. The rear wheel anti-theft lock of the electric vehicle is self-locking or has been locked but has not been opened.
Solution:
1. Do not push the cart to the repair shop when the power is on, otherwise the motor will burn out. If pushed hard, it is easy to burn out the Hall element in the motor. The Hall plays a role in stabilizing the start. If the Hall is broken, the controller will not work if it cannot find the angle of the tire. Without the Hall, the handle will suddenly rush forward when the handle is turned, and there will be an abnormal sound.
2. It's okay if you push it, just separate the 8 wires of the motor and the 8 wires of the controller (the 8 wires of the motor should not touch each other, and the motor will not rotate if the 3 thick phase wires of the motor touch each other) ) (Do not open the electric lock).