Electric bicycles have many inconspicuous, but very important small parts and electric bicycle controllers are one of them. Don't look at the controller inconspicuously, but your electric bicycle can be started, advanced, retreated, and stopped. So what are the reasons that can cause the failure of the electric vehicle controller?

1. The power device is damaged;

The damage of power devices generally has the following possibilities: motor damage; poor quality or insufficient selection of the power device; device installation or vibration looseness; motor overload; power device drive circuit damage or parameters Caused by unreasonable design.

2. The internal power supply of the controller is damaged;

The damage of the internal power supply of the controller generally has the following possibilities: the internal circuit of the controller is short-circuited; the peripheral control components are short-circuited; the external leads are short-circuited.

3. The controller works intermittently;

The controller works intermittently. Generally, there are the following possibilities: the device itself is parameter drifting in a high temperature or low temperature environment; the large power consumption of the overall design of the controller causes the local temperature of some devices to be too high and the device itself enters the protection state; Poor contact.

4. The control signal is lost due to the wear of the connecting wire and the bad or falling off of the connector.

There are generally the following possibilities for wear of the connecting wire and poor contact or falling off of the contact plug-in: unreasonable wire selection; incomplete protection of the wire; insufficient crimping of the connector.