A dual-motor position synchronization and priority reset control method

By recording the relative position data of the motors in a dual-motor system and establishing a priority reset judgment model, the problem of synchronous reset after power failure in a dual-motor system is solved, achieving low-cost and safe motor position synchronization, avoiding mechanical collisions, and improving the safety and reliability of the system.

CN121012374BActive Publication Date: 2026-07-21SUZHOU ETRON TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU ETRON TECH CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing dual-motor systems struggle to achieve low-cost, accurate, and safe position synchronization reset after a power outage, especially when the motor position is in the middle of the cycle, making collisions more likely. Traditional methods are costly or lack flexibility, making them unsuitable for complex asynchronous recovery scenarios.

Method used

By recording the relative position data of the motor in real time and reading it from the Flash memory after power failure, and combining the position difference with the limit signal and timer counter, a priority reset judgment model is established. A state machine control process is adopted to achieve low-cost and safe reset of the motor.

Benefits of technology

Without the need for high-cost position sensors, the dual-motor system achieves precise and safe reset after power failure, avoiding mechanical collisions and improving the system's safety and reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121012374B_ABST
    Figure CN121012374B_ABST
Patent Text Reader

Abstract

The application discloses a double-motor position synchronization and priority reset control method, which firstly judges whether the double motor belongs to a synchronization state; if the judgment result is the synchronization state, the two motors are set to start at the same time at a low and consistent speed, and a control system combines a limit signal and a running time to continuously judge the movement process until the two motors trigger a position limiter and execute a stop action; if the judgment result is a non-synchronization state, whether the two motors are in a defined risk area is judged based on a position coordinate, and a priority reset judgment model is established by comprehensively considering the current direction, speed and possible physical collision risk of the motor. The application realizes accurate, safe and collision-free reset of the double-motor system after power failure without high-cost position sensors. The method has the advantages of simple structure, low cost, significant improvement of the safety and reset efficiency of the system, and wide engineering application value, and is suitable for various scenes such as windshield wiper control.
Need to check novelty before this filing date? Find Prior Art