High-precision hypersonic flight vehicle trajectory optimization multi-scale optimal control system

A hypersonic, trajectory optimization technology, applied in control/regulation systems, vehicle position/route/altitude control, non-electric variable control, etc., and can solve problems such as low accuracy

Active Publication Date: 2020-04-21
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the lack of high precision of the current method, the purpose of the present invention is to provide a multi-scale optimal control system that realizes optimization and has high calculation efficiency, fast convergence speed and high precision. The control system uses MCU as the optimal control method The realization carrier

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  • High-precision hypersonic flight vehicle trajectory optimization multi-scale optimal control system
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  • High-precision hypersonic flight vehicle trajectory optimization multi-scale optimal control system

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Embodiment 1

[0052] The structure of the multi-scale optimal control system for high-precision hypersonic vehicle trajectory optimization is as follows: figure 1 As shown, when the hypersonic vehicle arrives in the airspace of the re-entry segment, the altitude sensor, speed sensor, flight path inclination sensor, horizontal flight range sensor and MCU of the hypersonic vehicle are all turned on. The information collection module immediately collects the initial altitude, speed, flight path inclination and horizontal range of the aircraft when it enters the re-entry segment, and sets the current initial time t 0 = 0s, the altitude sent by the altitude sensor to the MCU is h 0 =80 000m, the speed sent by the speed sensor to the MCU is v 0 =6400m / s, the inclination angle of the flight path transmitted to the MCU by the flight path inclination sensor is γ 0 =-0.052rad, the horizontal range of the horizontal flight distance sensor sent to the MCU is r 0 =0m; final value time t f The condit...

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Abstract

The invention discloses a high-precision hypersonic flight vehicle trajectory optimization multi-scale optimal control system which is used for controlling flight vehicle trajectories. The high-precision hypersonic flight vehicle trajectory optimization multi-scale optimal control system is composed of a flight vehicle altitude sensor, a flight vehicle speed sensor, a flight vehicle flight channelinclination angle sensor, a flight vehicle horizontal voyage sensor, a flight vehicle MCU and a flight vehicle attack angle controller. And the flight vehicle MCU automatically executes an internal high-precision multi-scale optimization algorithm according to the set altitude, speed and flight channel inclination angle requirements, converts the obtained control strategy into a control instruction and sends the control instruction to the flight vehicle attack angle controller for execution. According to the invention,, the trajectory optimization control strategy can be quickly obtained according to different altitudes, speeds, flight channel inclination angles and flight horizontal voyage states of the hypersonic flight vehicle, so that the hypersonic flight vehicle can obtain a farthervoyage.

Description

technical field [0001] The invention relates to the field of trajectory optimization for the re-entry section of a hypersonic vehicle, in particular to a high-precision hypersonic vehicle trajectory optimization multi-scale optimal control system. After the hypersonic vehicle reaches the reentry stage, it can give the trajectory optimization control strategy of the hypersonic vehicle and convert it into an aircraft angle of attack control command, so that the hypersonic vehicle can obtain a longer horizontal flight distance under the condition of meeting the safety requirements. Background technique [0002] Hypersonic aircraft is a new type of aircraft that can achieve long-range, rapid and precise strikes and global rapid arrival. It has a very important strategic position in the future military, politics, and economy. It has become an extremely important development direction in the world aerospace field and is the world's major aerospace One of the areas of competition a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/101Y02T90/00
Inventor 金昌龙叶松张志猛马卫华张泽银祁振强刘兴高
Owner ZHEJIANG UNIV
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