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�������պ����ѧѧ�� 2008, Vol. 34 Issue (02) :131-134    DOI:
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Scheme analysis of pump-valve coordinated control electro-hydrostatic actuator
Qi Haitao, Fu Yongling, Wang Zhanlin*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ ��Ե��͵�EHA (Electro-Hydrostatic Actuator)ϵͳ���ڵ�Ƶ��ϵ͵�����,Ϊ�˼������ϵͳ��Ч�ʺ�Ƶ��,�����Ʒ�������EHAϵͳ,�����3�ֱ÷�Э�����Ƶ�EHA����,�ֱ���:����EHSV(Electro-Hydraulic Servo Valve)��EHAϵͳ,����DDV(Direct Drive Valve)��EHAϵͳ�Լ�����TPCV(Total Pressure Control Valve)��EHAϵͳ.��������3�ַ�����ϵͳ��ɼ�����ԭ��,����AMESim����3�ַ��������͵�EHA�����˷���Աȷ���.�ӷ��������Կ���:�÷�Э�����Ƶ�EHAϵͳ���Դ�����ϵͳ��Ƶ��,ͬʱ�����нϸߵ�Ч��.��Ϊ3�ֹ��ɷ���,����Ŀǰ���ص綯��Һ����ϵͳ�����ƾ���ʵ��ָ������.
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Abstract�� Aiming at the problem of low response which existed in the typical electro-hydrostatic actuator (EHA) systems, control valve was introduced into EHA systems to find a trade-off between efficiency and response. Three schemes of pump-valve coordinated control EHA were put forward. First was EHA with electro-hydraulic servo valve, second was EHA with direct drive valve, and third was EHA with total pressure control valve. The system composition and operating principle of the three schemes were analyzed. Also each scheme was simulated and compared in AMESim. The simulation results show that pump-valve coordinated control EHA will greatly improve the system response and its efficiency is also higher. As three transitional schemes, they have practical guidance significance to the research and development of present airborne electro-hydrostatic actuation system.
Keywords�� power-by-wire(PBW)   electro-hydrostatic actuator(EHA)   pump-valve coordinated control   electro-hydraulic servo valve(EHSV)   direct drive valve(DDV)   total pressure control valve     
Received 2007-01-30;
Fund:

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About author: �뺣��(1981��),��,ɽ���Ͳ���,��ʿ��,haitao8642@163.com.
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�뺣��,������,��ռ��.�÷�Э�����Ƶ綯��Һ��������������[J]  �������պ����ѧѧ��, 2008,V34(02): 131-134
Qi Haitao, Fu Yongling, Wang Zhanlin.Scheme analysis of pump-valve coordinated control electro-hydrostatic actuator[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(02): 131-134
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