An underwater unmanned sub-platform safety motion control method

By coordinating the mechanical and electric brakes of the traction and braking motors, the problem of rapid and safe stopping of the underwater unmanned subplatform in case of failure was solved, ensuring the reliability and safety of its movement.

CN117361371BActive Publication Date: 2026-06-26WUHAN INSTITUTE OF MARINE ELECTRIC PROPULSION (THE 712TH RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN INSTITUTE OF MARINE ELECTRIC PROPULSION (THE 712TH RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD)
Filing Date
2023-11-03
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When the traction motor drive system or brake motor drive system of an underwater unmanned sub-platform fails, it is prone to continue moving due to inertia, which may lead to a collision with the parent platform. Existing technologies make it difficult to stop the movement quickly and safely.

Method used

A coordinated control method using traction motor drive system and brake motor drive system is adopted. By combining mechanical brakes and electric brakes, safe motion control is achieved in case of failure. This includes measures such as traction motor reversal, low torque mode, and rapid deceleration of brake motor to ensure the wire rope remains taut.

Benefits of technology

It achieves fast, reliable, and safe sub-platform motion control in the event of motor drive system failure, avoiding collisions and possessing fast response, reliability, and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of underwater unmanned sub-platform safety motion control methods, including sub-platform forward movement when traction motor drive device brake control under traction motor drive device failure and brake motor drive device brake control under traction motor drive device failure, sub-platform reverse movement when brake motor drive device brake control under brake motor drive device failure and brake motor drive device brake control under brake motor drive device failure, sub-platform forward movement when traction motor drive device brake control under brake motor drive device failure and sub-platform reverse movement when traction motor drive device brake control under brake motor drive device failure;The application can ensure the safety of underwater unmanned sub-platform motion by the cooperation control of traction motor drive device and brake motor drive device electric brake, mechanical brake.
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