Load detection method and system for direct-current brushless gear motor

Through the collection and analysis of various data under no-load experiments and load conditions, combined with the equipment parameters and historical operation loss database, the output power and load torque of the DC brushless reducer motor are calculated, which solves the problems of inaccurate detection, high cost and complex system in the existing technology, and achieves efficient and accurate load state detection.

CN119716544APending Publication Date: 2025-03-28ZHEJIANG MAILI ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202510239139.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When detecting the load state of the DC brushless gear reducer motor in the prior art, there are problems such as inaccurate detection results, high cost, complex system, and difficult to integrate.

Method used

By conducting no-load experiments on the DC brushless reducer motor, no-load experiment data is obtained; under load conditions, current, voltage, temperature and speed data are obtained, input power, copper loss power and iron loss power are calculated based on equipment parameters, a historical operation loss database is established, output power and load torque are determined, and the load state is judged.

Benefits of technology

It realizes more comprehensive and accurate detection of the load state of the DC brushless gear reducer motor, improves detection accuracy, reduces costs, simplifies the system, and is easy to integrate and apply.

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Abstract

The invention relates to the technical field of motor load detection, and discloses a load detection method and system for a direct-current brushless gear motor, and the method comprises the steps: carrying out the no-load experiment of the direct-current brushless gear motor, and obtaining the no-load experiment data; under the load condition, obtaining operation data of the direct current brushless gear motor; determining the input power of the motor according to the current data and the voltage data; acquiring equipment parameters of the motor, and determining copper loss power of the motor based on the current data and the equipment parameters; establishing a historical operation loss database, and determining the iron loss power of the motor according to the operation data; determining the output power of the motor based on the input power, the copper loss power, the iron loss power and the no-load experiment data; and determining the load torque of the motor according to the output power, and determining the load state of the direct-current brushless gear motor according to the load torque. According to the invention, the load state of the direct-current brushless gear motor can be comprehensively and accurately detected, and the operation efficiency and stability of the motor can be improved.
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