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�������պ����ѧѧ�� 2008, Vol. 34 Issue (12) :1407-1410    DOI:
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��Ʒ�, �ν�ˬ, �� ��, ������*
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Fuzzy logic reaction control method for re-entry vehicle
Li Kefeng, Song Jianshuang, Ren Zhang, Zhang Qingzhen*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ��� RLV (Reusable Launch Vehicle)��������������һ�ֻ���ģ���߼���RCS(Reaction Control System).��ϸ������RCS��������,�����˻���Ч��ϵ���Լ��̵����Ե�RCSģ��,�����һ�ֻ���Mamdaniģ�͵�ģ���߼���ͨ��RCS������,�ÿ���������ר�ҿ��ƾ���,������̬�Ǽ������ʵ�ƫ��,������ͬ��RCS����ָ���������ͨ���Է�����������̬����.ͨ�������ɶȷ����Է���,��֤�˸ÿ���ϵͳ��PID(Proportional-Integral-Differential)��������Ⱦ��и��õĸ�������,��RCS�Ŀ������Ч��Ҳ����.
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�ؼ����� ���ظ�ʹ��������(RLV)   ������������ϵͳ(RCS)   ģ���߼�   Ч��ϵ��     
Abstract�� To solve the re-entry control problem of reusable launch vehicle (RLV), a reaction control system (RCS) based on fuzzy logic was presented. The characteristic of RCS was analyzed deeply, and the RCS model based on effect coefficient and relay feature was built. Then the three-channel RCS controller based on fuzzy logic by using the expertise knowledge was designed. Both of the attitude angles and attitude angles- rate errors were used to be the controller-s inputs. These inputs were processed by fuzzy logic controller, and then the RCS commands to each channel were generated. This controller was testified in the 6 degree of freedom simulation system and compared its effect with proportional-integral-differential (PID) controller. It was proved by the simulation results that the controller has better tracking performance and the RCS outputs are more efficient.
Keywords�� reusable launch vehicle(RLV)   reaction control system(RCS)   fuzzy logic   effect coefficient     
Received 2008-01-04;


About author: ��Ʒ�(1980-),��,���ϳ�����,��ʿ��,buaadallas@gmail.com.
��Ʒ�, �ν�ˬ, �� ��, ������.����ģ���߼�������RCS���Ʒ���[J]  �������պ����ѧѧ��, 2008,V34(12): 1407-1410
Li Kefeng, Song Jianshuang, Ren Zhang, Zhang Qingzhen.Fuzzy logic reaction control method for re-entry vehicle[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(12): 1407-1410
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