Why the electric car motor does not turn on?

Electric vehicles have become the preferred means of transportation for the general public because of their economic convenience. In the process of using electric vehicles, there are occasions when the motor does not turn on when riding. What causes this? How to repair?

First, the simplest case is that the fuse is burned. In this case, the motor is ok after replacing the fuse, and the cost of repairing the fault is also the lowest.

Second, the second case is that the power switch is broken and the power switch is replaced. Judgment method: Turn on the power switch and measure the resistance between the input terminal and the output terminal of the power switch with the ohmmeter of the multimeter. If the resistance value is zero, it is normal. If the resistance value is infinite, the power switch is broken, and the power switch should be replaced.

Third, the third is that Hull turns bad. The specific diagnosis method is to measure the output voltage of the green line at the output end of the turntable with the DC voltage file of the multimeter. If there is a 1-4.2 voltage output, the turn is normal. If there is no voltage output, the turn is burned out, and the turn handle needs to be replaced.

Fourth, the controller is bad. Use the multimeter DC voltage file to measure the red wiring of the controller output (connect the plug of the wire). If there is a voltage output of about 5 volts, the controller is normal. If there is no voltage output, the controller burns out and the controller needs to be replaced.

5. The terminals of the motor are loose, and each connector is re-examined. It may also be that the battery case is not in place when it is placed in the frame, and the contact of the contacts is not good.

Sixth, the last situation is that the motor burned out. Disconnect the motor from the controller, connect the other wires, slowly rotate the motor, measure the Hall line with a multimeter, and see if the signal has a voltage change. If there is no change in one phase, the motor Hall component burns off. , resulting in a lack of phase, the need to replace the motor. This situation is also the most expensive to repair.

In addition, when choosing a battery, try to choose a high-quality, well-branded battery, such as the Asahi battery. Asahi battery quality is very good, service is also good, sales, customer service, technical support, maintenance and other aspects of the construction is very perfect, can provide consumers with better after-sales service.

Electric vehicles bring convenience, but also need to pay more attention to electric vehicles, and solve problems in time to avoid major problems. If there is a problem with the electric car motor, you can't force it to ride. You can't solve the problem yourself. It is best to ask a professional electric car repairer to help you solve the problem!