Adaptive Iterative Guidance Method and Guidance Device for Space Vehicle
An adaptive iterative, carrier technology, applied in adaptive control, instruments, general control systems, etc., can solve problems such as insufficient adaptability to engine thrust drop failures
Active Publication Date: 2021-03-19
BEIJING LANDSPACETECH CO LTD
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Problems solved by technology
In the traditional iterative guidance algorithm, constant values are used for parameters related to the engine. However, when the engine actually has a thrust drop failure, the key parameters of the engine often have large changes. Therefore, the traditional iterative guidance method using constant parameters has certain advantages. limitations, insufficient adaptability to engine thrust drop failures
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[0071] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly illustrate the spirit of the content disclosed in the application with the accompanying drawings and detailed descriptions. After any person skilled in the art understands the embodiments of the content of the application , when it can be changed and modified by the technology taught in the content of the application, it does not depart from the spirit and scope of the content of the application.
[0072] The exemplary embodiments and descriptions of the present application are used to explain the present application, but not to limit the present application. In addition, elements / members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.
[0073] The terms "first", "second", ... etc. used herein do not specifically refer to a sequence or order, nor are they...
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The application provides an adaptive iterative guidance method and a guidance device for a space vehicle. The guidance method includes the following steps: updating the equivalent specific impulse of the engine in real time according to the measurement information of the inertial measurement combination; using the equivalent ratio of the engine updated in real time The parameters related to the working state of the engine in the iterative guidance algorithm are adaptively adjusted to obtain the flight program angle adapted to the failure of the engine thrust drop. The application can improve the adaptability of the iterative guidance algorithm to the engine thrust drop failure, improve the guidance accuracy, and improve the ability of the aerospace vehicle to complete the flight task under the condition of the engine thrust drop failure.
Description
technical field [0001] The application belongs to the technical field of space vehicle control, and in particular relates to an adaptive iterative guidance method and a guidance device of a space vehicle. Background technique [0002] As a means of transportation into space, the cost of development, production and launch of a space vehicle is very high. If the engine that powers it breaks down, it will easily lead to the failure of the launch mission, and the loss will be huge. For this reason, improving the ability of the space vehicle to complete the mission when the engine thrust is partially reduced is one of the key technologies that need to be solved urgently in the development of the space vehicle. [0003] The iterative guidance method is an optimal control method with the current state as the initial value, the state of the orbit point as the goal, and the minimum propellant consumption as the performance index. It can adjust the flight path in real time according t...
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IPC IPC(8): G05B13/02
CPCG05B13/024B64G1/002B64G1/245B64G1/242B64G1/247B64G1/36
Inventor 钟友武赵向楠赵卫娟朱凯米文昊
Owner BEIJING LANDSPACETECH CO LTD