一种飞行器复合故障诊断及控制补偿方法及系统
By constructing a dual-channel dynamic model and an observer, fault parameters are estimated and control law compensation is performed, solving the diagnostic challenge of multi-channel coupled faults in aircraft and improving the attitude stability and control accuracy of aircraft.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AEROSPACE CONTROL TECH INST
- Filing Date
- 2023-12-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively diagnose and handle complex faults involving multiple malfunctions in aircraft, leading to a decrease in attitude stability and control accuracy. In particular, when aileron effectiveness is lost or pitch rate sensor malfunctions occur, the system response is slow and channel coupling is difficult to decouple.
By constructing a dual-channel dynamic model, rewriting it into an affine nonlinear form, designing an observer and estimating fault parameters, setting a fault diagnosis threshold, compensating for the control law based on the estimated values, and limiting the compensation coefficients, accurate estimation of fault parameters and effective compensation of the control law are achieved.
It improves the flight performance and attitude stability of the aircraft under complex fault conditions, solves the diagnostic difficulties caused by multi-channel coupling, and ensures system response stability and control accuracy.
Smart Images
Figure CN117873016B_ABST