A Motor Controller with Hierarchical Multi-Core Structure

Abstract

Provided are a motor controller of a hierarchical multi-core structure and a control method thereof. The motor controller comprises a power inverter unit for driving a motor to run, an application interface function module, a motor control function module, and a drive function protection module. The application interface function module sends controller status information to an external control system, receives a control signal from the external control system, and sends a control command to the motor control function module. The motor control function module receives the control command sent by the application interface function module, detects a motor status, performs motor control computation, and sends a control pulse to the drive function protection module. The drive function protection module receives the control pulse, processes the control pulse, and then sends the processed control pulse to the power inverter unit. The drive function protection module detects an operating status of the inverter, and controls the power inverter unit. The motor controller is divided into three layers of independent systems from inside to outside and from bottom to top, being a drive layer system, a control layer system, and an application layer system. Circuit modules are closely linked, and functionally independent. The controller has advantages of high reliability and high safety.

Description

Technical field: [0001] The invention relates to a motor controller. Background technique: [0002] With the aggravation of the global energy crisis, energy conservation and emission reduction, and getting rid of dependence on oil have become global scientific and technological hotspots, and have also become a country's strategic needs. As a result, new energy vehicle technology, which is different from traditional fuel vehicles, has made great progress and has begun to be applied globally. [0003] Most new energy vehicles use electric motors as power. Whether the entire power system operates reliably and whether the control is excellent depends on the motor controller. A complete new energy vehicle motor controller needs to complete the following functions: [0004] ●Motor state detection and control; [0005] ●Inverter drive signal setting and its fault detection and protection; [0006] ●Receive the given running control command from the vehicle controller; [0007...

AI Technical Summary

Problems solved by technology

[0008] As can be seen above, the functions of the motor controller are quite complex, and because the motor runs at a high speed and the operating conditions are complex and changeable in new energy vehicles, the real-time requirements for motor control are high. If there is a loophole in a certain function, it will It will cause the system to crash, ranging from the motor not responding to the control, to the severe case of out-of-control "flying car"

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