How does the drive motor work?

How does the drive motor work?

The basic task of the driving circuit is to convert the signal transmitted by the information electronic circuit into a signal that can be turned on or off between the control end and the public end of the power electronic equipment according to the requirements of its control target. Semi-control equipment only needs to provide an on-on control signal, and the full control device needs to turn off not only the control signal, but also the control signal to ensure that the equipment is reliably on or turned on or off as required.

How does the electric vehicle drive motor control system work?

The electric vehicle drive motor control system can be regarded as the "power department" and "operation department" of the electric vehicle itself. Its existence can support the sustainable development of electric vehicles. It is not only a storage place for electric vehicles, but also a "link" between energy and wheel rotation. It is one of the three core components of electric vehicles.

The electric vehicle drive motor control system is the core embodiment of the performance of electric vehicles, including high power and high speed, which also indirectly determines the comfort of electric vehicle posture. Therefore, its inspection, maintenance and maintenance cannot be taken lightly. The electric vehicle drive motor control system is mainly composed of a rotary system and a mechanical transmission system. The rotation system mainly provides kinetic energy. The mechanical transmission system is mainly used to transfer kinetic energy to the wheels so that electric vehicles can drive.

The rotation system includes multiple devices, such as motors, temperature sensors, controllers, voltage overload protectors, etc. These devices exist independently. Once these parts fail, they cannot be repaired, can only be replaced, and cannot be deeply repaired.

The power of electric vehicles mainly relies on the electromagnetic induction principle, also known as the Faraday principle. First of all, execute the output instructions given by the control unit, and then convert the transmitted current into a three-phase AC power supply with adjustable voltage and frequency, and support the three-phase AC permanent magnet synchronous motor.

The vehicle controller adjusts the output of the driving motor through the instructions issued by the driver and the corresponding motor controller to ensure that the electric vehicle can drive and make the electric vehicle have driving kinetic energy. In addition, the motor controller can also act on the driver's communication and protection, monitor the system in real time, and report system failures in time to ensure the lives of the people in the car.

The motor controller consists of an inverter and a controller. The drive motor controller adopts a three-phase two-level voltage source inverter, which is mainly used to convert the transmission power supply into the power supply required for electric vehicles. The power supply required for electric vehicles is a three-phase AC power supply, which can rely on the inverter to obtain power supply and energy. On the other hand, the controller mainly reflects the signal of the driving motor and other components on the instrument, which can adjust the frequency of the frequency converter in the driver's various driving behaviors to achieve the driving purpose.

Temperature sensors, transformers and other components can provide motor operation status information in the motor controller and reflect the obtained operating state VCU in time. The driving motor system takes the insulated gate dual transistor module as the core, effectively processes all input signals, and reflects and transmits the operation of the driving motor control system to the vehicle controller. It can also save and record some faults and details.