Enhanced In-Flight Mass and Center of Gravity Estimation Algorithms

点击翻译按钮获取中文摘要

Bombardier recently certified its CSeries and the Global 7000, which represent its first Fly-By-Wire (FBW)**commercial aircraft and business jet, respectively. These two aircraft are equipped with the first generation of**Bombardier FBW automated flight control laws. As part of its research and development activities, the**company is exploring technologies that could be required for future generation of such flight control laws.**Specifically, technologies to estimate on-board and in real-time the aircraft mass and position of centre of**gravity have been identified as important parameters. Indeed, such capabilities will allow scheduling the gains**of the flight control laws during the flight as a function of these parameters instead of designing them as**constants before the flight. This will significantly improve the performance of the flight control laws. In this**context, Bombardier has already developed two types of mass and CG position real-time estimation algorithms.**The first is operational in steady-state flight conditions, whereas the second operates when the aircraft**dynamics is excited (transient). While these solutions seem to have promise, there is a need for deeper**theoretical and practical investigations by state estimation specialists. In this context, the main objective of this**research project is to further develop and analyse the two solutions to enhance their technology readiness level;**thereby making the resulting innovation mature and closer to be implemented on Bombardier's FBW aircraft**for flight testing.