Civil aircraft assisted driving control method, system and flight quality evaluation method

Abstract

The invention provides a civil aircraft flight assistant driving control method. According to the linear parameter time-varying model of the civil aircraft, an aircraft attitude angle assistant control system model based on LPV control is designed; according to the LPV control model, an inline structure of the LPV control model is established. , solve the aircraft LPV model of the inline structure and the LPV controller to realize the flight assistance control of the civil aircraft. At the same time, a civil aircraft flight assistance control system and a flight quality evaluation method realized by adopting the above method are provided. The present invention uses the robust control method to effectively realize the high dynamic tracking performance of the longitudinal attitude angle of the aircraft and the robust tracking stability performance in the case of the large-scale variation of the parameters of the civil aircraft, and has the advantages of realizing the flight control under the large-scale variation of the parameters of the large-scale civil aircraft. Actively refer to the significance, and use the bandwidth criterion and CAP criterion to evaluate the flight quality of the civil aircraft pilot assistant system.

Description

technical field [0001] The present invention relates to the technical field of civil aircraft flight control, in particular to a civil aircraft assisted driving control method, system and flight quality evaluation method. Background technique [0002] When the pilot mismanages a civil aircraft, the aircraft will rapidly change altitude and speed, which will cause the flight control system model parameters to change in a large range. If the traditional gain preset design method is adopted, it is easy for the aircraft to fly at a non-design operating point due to If the parameters deviate from the operating point, a large control deviation will appear, and even the flight control system will become unstable. For this reason, it is necessary to design the flight control law from the whole flight envelope, considering the large-scale variation of parameters. [0003] For the large-scale variation of civil aircraft model parameters, although the traditional Proportion Integratio...

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Problems solved by technology

[0006] To sum up, the research and application of LPV robust control methods have certain prospects, but most of them are used in unmanned aerial vehicles and aerospace, while the applications on civil aircraft are mainly in fault diagnosis and estimation. Under variable altitude and variable speed, there are few studies and applications on the large-scale variation of model parameters, especially in the flight quality evaluation of civil aircraft under variable parameters, and no related research work has been found so far.

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