Motor control method and system

Abstract

The embodiment of the invention provides a motor control method and system, and belongs to the technical field of automatic control. The method comprises the steps that a first controller collects a first type parameter of a controlled motor and outputs a first PWM wave according to the first type parameter, and a second controller collects a second type parameter of the controlled motor and outputs a second PWM wave according to the second type parameter; the processing module samples parameters of the first PWM wave and the second PWM wave to obtain a target difference value, and judges whether the target difference value is smaller than a preset reference value or not; if the target difference value is smaller than the preset reference value, determining that both the first PWM wave andthe second PWM wave are available PWM waves, and sending the available PWM waves to the controlled motor; If the target difference value is greater than or equal to the preset reference value, stopping sending the PWM wave to the controlled motor. According to the scheme, the cooperative processing capacity of a heterogeneous system is fully exerted, after calculation is conducted through different chips and different algorithms, the dual redundancy and non-similarity of the PWM waveform calculation process can be guaranteed, and the safety and real-time performance of motor control are improved.

Description

technical field [0001] The technology belongs to the technical field of automatic control, and in particular relates to a motor control method and system. Background technique [0002] Motor control technology is widely used in military fields such as airborne and vehicle-mounted. However, in the working process of the motor, many factors will have a certain impact on the stability and safety of the motor controller, mainly including external temperature, humidity, electrostatic field, etc., and internal software algorithms. For example, under the influence of the external electrostatic field, the static electricity carried by the device may be overloaded, and the system will appear unstable in voltage, current, and signal. However, the process of electrostatic discharge may cause certain damage to many core chips in the controller, making its function ineffective. In some cases, the internal software algorithm of the motor controller may have uncertain faults during the r...

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the existing motor control schemes for heterogeneous architectures have technical problems of poor security and real-time performance

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