An aircraft redundancy brake control architecture and control method

By introducing a redundant braking control architecture with integrated controller and analog circuit design into the aircraft braking control system, the safety and layout difficulties of the existing system are solved, the system reliability and safety are improved, and the probability of failure is reduced.

CN117698999BActive Publication Date: 2026-06-26XIAN AVIATION BRAKE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN AVIATION BRAKE TECH
Filing Date
2024-01-03
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing aircraft braking control systems, dual-redundant systems are not safe enough, while multi-redundant systems have many components, are heavy, and are difficult to lay out. Furthermore, hydraulic equipment failures can lead to the loss of electrical dual redundancy, affecting the reliability and safety of the aircraft.

Method used

The aircraft adopts a redundant braking control architecture, including an integrated controller, a first brake controller, and a second brake controller. The modules communicate with each other via ARINC429 and RS232. A BIT function is designed to improve reliability, and an emergency braking function is implemented through analog circuits. Modular design and redundancy are added.

Benefits of technology

It improves the reliability and safety of the braking system, reduces the probability of complete loss of wheel braking system, reduces maintenance costs, and avoids the phenomenon of non-convergence between anti-skid control and automatic braking control implemented in the same software.

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Abstract

An aircraft redundancy brake control architecture and control method, a first brake controller includes a first main control module, a first backup control module and a first emergency control module; a second brake controller includes a second main control module, a second backup control module and a second emergency control module. The comprehensive controller works with the brake controller, the two control modules are backup for each other, and the comprehensive controller increases the redundancy design; the three control modules in the brake controller are redundancy designed, and the second control module contains the redundancy design for another brake controller, and the probability of complete loss of wheel brake system is reduced to 7.8E-10. Automatic brake anti-skid control is realized through the comprehensive controller, the non-convergence phenomenon that may occur when the same software realizes two control algorithms is avoided, and the brake system reliability is improved. The emergency brake control module of the application adopts a pure analog circuit, which is completely different from the design of the main control module and the backup control module, and improves the safety of the brake system.
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