Why does the controller of an electric car fail?

The convenience of green and environmentally friendly electric vehicles in people’s lives makes everyone choose electric vehicles when they travel. However, every electric vehicle is composed of various parts and components, and each part is indispensable. The starting and driving of electric vehicles , What is the stop relying on? That is the electric vehicle controller.

        When there is a problem with your electric car and it cannot be started, you may wish to check this problem. The electric car controller controls the "driving power" of the electric car. Problems must be solved in time to bring your happiness. Life is easy to move forward. The reasons for the failure of the electric vehicle controller can be roughly divided into the following points:

1. The power device is damaged

There are several possibilities for this part of damage. One is motor damage; the second is the unqualified quality of the power device; third, the device is installed improperly or the parts are loose due to vibration during driving; fourth, the motor is overloaded; Fifth, the power unit drive circuit is damaged or the parameter design is unreasonable.

2. The internal power supply of the controller is damaged

There are several possibilities for this problem. First, the internal circuit of the electric vehicle controller is short-circuited; secondly, the peripheral control components are short-circuited; and thirdly, the external leads are short-circuited.

3. The controller works intermittently

The controller works intermittently, and generally there are the following possibilities: the device itself is parameter drifting in high or low temperature environments; 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; inadequate crimping of the plug-in connector.