Fault-Tolerant Guidance of Rocket Vertical Landing Phase Based on MPC Framework
Fault-Tolerant Guidance of Rocket Vertical Landing Phase Based on MPC Framework
- Neue Suche nach: Jingqi Li
- Neue Suche nach: Yaosong Long
- Neue Suche nach: Mao Su
- Neue Suche nach: Lei Liu
- Neue Suche nach: Bo Wang
- Neue Suche nach: Zhongtao Cheng
- Neue Suche nach: Jingqi Li
- Neue Suche nach: Yaosong Long
- Neue Suche nach: Mao Su
- Neue Suche nach: Lei Liu
- Neue Suche nach: Bo Wang
- Neue Suche nach: Zhongtao Cheng
For the vertical landing process of reusable rockets, the landing accuracy is likely to be affected by disturbances and faults during flight. In this paper, a fault-tolerant guidance method based on the MPC framework is put forward. First, we propose a piecewise guidance algorithm that combines a trajectory optimization algorithm based on convex optimization with the MPC framework. With the fast trajectory optimization algorithm and the MPC framework that recursively introduces the real-time state, this algorithm forms a robust closed loop. Then, we design an integrated guidance, navigation, and control (GNC) system to enhance the fault tolerance and robustness of the guidance method. Simulation experiments verify that this method is fault-tolerant to various fault conditions including navigation system failures, control system failures, drag coefficient deviations, and atmospheric density deviations. This guidance method is robust enough to overcome disturbances and faults, and it has great potential for online use.
Dokumentinformationen
Fault-Tolerant Guidance of Rocket Vertical Landing Phase Based on MPC Framework
2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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| Europäisches Patentamt | 2022