What is the reason why the electric car's motor hall is broken? How to fix it?

Hall motor is broken (***3). After electrifying, manually rotate the motor to measure the negative pole of the power supply and the three signal lines-measure them separately to see if there is high and low voltage output. The high voltage is about equal to the power supply voltage (about 5V), and the low voltage is about equal to 0, which is usually done by mechanics. If the motor can't turn or turn, or there is abnormal sound (click sound), it is recommended that non-professionals don't open it, especially don't pry it open, because it will damage the waterproof of the motor. If it must be turned on, it must be turned on (because the motor has a strong magnetic force and can be turned on at one time by inertia). ) Bicycle repairers are usually open, so it's best to find them. When you open the coil, you will see that there are three halls, which are generally switch halls (unipolar switch, such as OH44E, bipolar latch, such as OH4 1 or OH4 1F), and which one to use depends on the motor phase. It depends on whether the original monopole is changed to monopole or bipolar. It's better to change all three.

All Halls have to go through the controller. Hall's good controller is broken and the car is broken!

Car hall

OH series hall