Enhanced In-Flight Mass and Center of Gravity Estimation Algorithms

庞巴迪最近对其c系列飞机和环球7000飞机进行了认证，这两款飞机分别是庞巴迪第一款电传（FBW）商用飞机和公务机。这两架飞机配备了第一代**庞巴迪FBW自动飞行控制律。作为其研发活动的一部分，这家**公司正在探索下一代飞行控制法律可能需要的技术。**具体而言，机上和实时估计飞机质量和重心位置的技术已被确定为重要参数。事实上，这样的能力将允许在飞行期间将飞行控制律的增益作为这些参数的函数来调度，而不是在飞行前将它们设计为常数。这将显著提高飞行控制律的性能。在这种情况下，庞巴迪已经开发了两种类型的质量和CG位置实时估计算法。**第一个是在稳态飞行条件下运行，而第二个是在飞机动力学被激发（瞬态）时运行。虽然这些解决方案似乎有希望，但仍需要由状态估计专家进行更深入的理论和实践研究。在此背景下，本**研究项目的主要目标是进一步开发和分析这两种解决方案，以提高其技术准备水平；**从而使最终的创新成熟并更接近于在庞巴迪的FBW飞机上实施**进行飞行测试。

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.