Aerospace plane high altitude lifting longitudinal control method

Abstract

The invention discloses a method for longitudinally controlling high-altitude climbing of an aerospace plane, which comprises the following steps: (1) calculating a speed upcurve according to a dynamical equation of a controlled object and high-altitude pneumatic characteristics; (2) calculating a tracking curve of a climbing angle along the speed upcurve; (3) designing the tracking curve of an attack angle according to the tracking curve of the climbing angle; (4) designing the tracking curve of the pitch angle rate; and (5) designing track control law of the attack angle and the pitch angle rate. The control method lays theoretical basis for the tracking curve, thereby realizing the aim of cooperative control, satisfying the pitch angle and overload limitation, solving the problem of scheduling in the prior plane control, and reducing complexity of the design.

Description

technical field [0001] The invention belongs to the field of aerospace control, and relates to a longitudinal control method for an aerospace aircraft when climbing at high altitude. Background technique [0002] The concept of an aerospace plane was proposed in the early 1980s. With the increase of space activities, especially the development of manned spaceflight, the high cost of one-time use of rockets, spacecraft and space shuttles has increasingly become a "bottleneck" for large-scale space activities. An economical and safe aircraft that can take off and land and travel between the sky and the earth is the aerospace plane. It can not only complete civil aerospace missions, but also perform a variety of military aerospace missions. It will be one of the key weapons and equipment for controlling space and competing for space dominance in the 21st century. It is a manned space weapon with broad development prospects. It will bring about major changes in the future of w...

AI Technical Summary

Problems solved by technology

(2) Long-term uncontrollable problems

[0005] From the above analysis, it can be seen that the high-altitude climb section of aerospace aircraft is different from the control mode of traditional aircraft, but there is no related control method in the published literature.

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