Aero-engine low-pressure turbine rear temperature sensor signal reconstruction method, system and control system
By establishing a proportional relationship between temperature sensors and a real-time signal reconstruction method in aero engines, the temperature deviation problem caused by turbine back temperature sensor failure was solved, ensuring the safe and reliable operation of the engine under failure conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AECC SICHUAN GAS TURBINE RES INST
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technology cannot accurately obtain turbine back temperature parameters when the turbine back temperature sensor of an aero-engine malfunctions, causing the engine operating state to deviate from the limit value, which may lead to reduced engine life or safety failure.
By establishing a proportional relationship between multiple temperature sensors, the proportional coefficient matrix is calibrated during the engine factory test run, faulty sensors are detected in real time, and signals are reconstructed using non-faulty sensors to obtain accurate temperature parameters.
When the temperature sensor fails, it can accurately reflect the true temperature after the turbine, prevent the engine from exceeding its operating limits, extend engine life, prevent turbine damage, and improve the robustness and safety of the control system.
Smart Images
Figure CN122409004A_ABST