Flight Control Software: Mistakes Made and Lessons Learned

Jeppu, Yogananda

doi:10.1109/ms.2013.42

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…Aircraft control systems design, development and testing are complex tasks prone to human errors. It is important to find and correct them – the earlier it is done the less cost it generates (Jeppu, 2013). Worst case situation is finding errors at the flight testing stage, as it is one of the most expensive activity during the project (Haskins et al , 2004).…”

Section: Methods For Stabilisation System Pre-flight Simulation Testi...mentioning

confidence: 99%

Initial flight test verification of software and hardware in the loop simulations of the flight stabilization system

Zajdel,

Welcer,

Szczepanski

2024

AEAT

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Purpose This paper aims to present assessment of models and simulation results used in the development process of flight stabilisation system that uses trim tabs for PZL-130 Orlik turboprop military trainer aircraft. Flight test of the system allowed to compare software and hardware simulation results with real flight recordings. Design/methodology/approach Proposed flight stabilisation system was developed using modern techniques of model-based design, automatic code generation, software and hardware in the loop testing. The project reached flight testing stage which allowed to gather data to verify models and simulation results and asses their quality. Findings Results of the comparison showed that the trim tab actuator model used in simulation can be improved by adding play. This reduced the difference between simulation and real flight system output – actuator angle. The influence of airloads on the flying actuator angle compared to hardware in the loop simulation in lab is less than ± 0.6°. Originality/value Proposed flight stabilisation system that uses trim tabs has several benefits over classic automatic flight system in terms of weight, energy consumption and structure simplicity and does not need aircraft primary control modification. It was developed using modern techniques of model-based design, automatic code generation and hardware in the loop simulations.

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Section: Methods For Stabilisation System Pre-flight Simulation Testi...mentioning

confidence: 99%

Initial flight test verification of software and hardware in the loop simulations of the flight stabilization system

Zajdel,

Welcer,

Szczepanski

2024

AEAT

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“…The operation of the aircraft navigation system under conditions of signal reception errors was studied in [ 13 ] concerning the information aspect; algorithms for modeling physical and information processes under these conditions were given and circuit and algorithmic solutions aimed at improving safety were proposed. Emphasizing software quality, the influence of errors made during software development on the probability of a prerequisite for a flight accident was considered in [ 14 ]. The main emphasis was placed on the errors made in the logic of computer programs and measures were proposed to reduce their impact.…”

Section: Introductionmentioning

confidence: 99%

Advanced Architecture of On-Board Multiplex Information Exchange System to Increase Flight Safety

Dashkiiev

Povstenko

2022

Entropy

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Issues of aviation flight safety conducted with an on-board information exchange system are discussed. The system information analysis method is used. An analysis of in-flight hazard sources and the means of their elimination from the information exchange point of view are carried out including the influence of the information exchange system’s parameters, work algorithm and architecture. The value of information exchange speed on safety in dynamic flight conditions is discussed. A modification of architecture and the information exchange system algorithm are proposed to increase the exchange speed and the whole system’s effectiveness based on parallel processing as well as to enhance the probability of successful elimination of an emergency situation.

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Teaching Safety Critical Control System: A Success Story of Industry Academia Relation

Shreesha¹,

Chethan

Jeppu

2018

IFAC-PapersOnLine

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Flight Control Software: Mistakes Made and Lessons Learned

Cited by 7 publications

References 2 publications

Initial flight test verification of software and hardware in the loop simulations of the flight stabilization system

Initial flight test verification of software and hardware in the loop simulations of the flight stabilization system

Advanced Architecture of On-Board Multiplex Information Exchange System to Increase Flight Safety

Teaching Safety Critical Control System: A Success Story of Industry Academia Relation

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