Multistage electromagnetic acceleration device and method based on hybrid acceleration mode

By using a multi-stage electromagnetic acceleration device with a hybrid acceleration mode, and employing a microcontroller and optocoupler-isolated drive circuit to precisely control IGBT switches, the problems of low energy utilization and insufficient timing control accuracy of existing electromagnetic acceleration devices are solved. This enables energy recovery and sabot recovery, improving system efficiency and reliability.

CN122408536APending Publication Date: 2026-07-17CHONGQING UNIV
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Patent Information

Application Number
CN202610692917.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electromagnetic acceleration devices suffer from low energy utilization, insufficient timing control precision, waste of sabot resources, and easy sensor failure. Furthermore, sensor installation can damage the track structure.

Method used

A multi-stage electromagnetic acceleration device employing a hybrid acceleration mode combines an initial acceleration module, a multi-stage main acceleration module, a final-stage acceleration module, and a timing control module. It achieves precise control of IGBT switching through a microcontroller and optocoupler-isolated drive circuit, eliminating dependence on external sensors and enabling energy recovery and sabot recovery.

Benefits of technology

It improves energy utilization, precisely controls the timing of IGBT switches, avoids sensor failure and track damage, enables the recycling of the sabot, and reduces system complexity and failure rate.

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Abstract

The invention discloses a multi-stage electromagnetic acceleration device and method based on a hybrid acceleration mode, and the device comprises an initial acceleration module which is used for providing an initial speed for a projectile; the multi-stage main acceleration module comprises at least three stages of reconnection type acceleration main circuits and is used for accelerating the projectile with the initial speed stage by stage; the final-stage acceleration module comprises a final-stage acceleration circuit connected behind the final-stage main acceleration circuit, and is used for accelerating the projectile accelerated stage by stage to a target speed and consuming the residual magnetic field in the coil; the time sequence control module comprises a single chip microcomputer, an optocoupler isolation driving circuit and a feedback circuit; and optical coupling isolation driving circuits are respectively connected between the single chip microcomputer and the first IGBT switch IGBT1 and between the single chip microcomputer and the second IGBT switch IGBT2. According to the multistage electromagnetic acceleration device and the control method thereof, the functions of accurate time sequence control and energy recovery and consumption are achieved, and dual-mode switching of acceleration and deceleration can be achieved under the same circuit architecture.
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