Engine performance parameter correction method based on in-orbit data

• Main Authors: LIU LEI, HE GANG, YIN WENJUAN, LI WEN, SONG TAO, LI XIANGNING, JIAO YAN, WANG XIANG, MA YUNHUA, LI ZE
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention proposes an engine performance parameter correction method based on on-orbit data, and the method comprises the steps: correcting the performance parameters of the engine through the on-orbit actual performance data, thereby facilitating the improving of the analysis level of the on-orbit data, and deepening the understanding of the working performance of an engine. According to the method, the engine performance parameters can be corrected without redundant hardware, the estimation precision of the on-orbit residual propellant can be improved, the prediction precision and orbital transfer efficiency of the on-orbit thrust can be further improved, waste of the propellant can be avoided, and the method has great significance on long-term on-orbit management of subsequent satellites. 本发明提出的一种基于在轨数据的发动机性能参数修正方法，利用在轨实际表现数据，对发动机的性能参数进行修正，有益于提高在轨数据的分析水平，更加深入了解发动机的工作性能；本发明的方法无需多余的硬件，即可实现对发动机性能参数的修正，不仅有益于提高在轨剩余推进剂的估算精度，进一步提高在轨推力的预测精度和变轨效率，避免推进剂的浪费，对后续卫星的长期在轨管理具有重大的意义。