The Reliable and Intelligent Propulsion Pressurization System of the Long March 7 Launch Vehicle  

作　　者：FAN Ruixiang DENG Xinyu SHAO Yetao YANG Haoliang TIAN Yurong 

机构地区：[1]China Academy of Launch Vehicle Technology, Beijing 100076 [2]Beijing Institute of Astronautical. Systems Engineering, Beijing 100076

出　　处：《Aerospace China》2017年第4期13-18,共6页中国航天（英文版）

摘　　要：The reliable and intelligent propulsion pressurization system is one of the key technologies of new Chinese generation launch vehicles; a high reliability design is an important guarantee for the success of launching. This paper analyzes the domestic and overseas liquid launch vehicles in the area of propulsion pressurization systems, based on comprehensive analysis, demonstrating the reliable and intelligent propulsion pressurization system of the Long March 7(Simplified as LM-7) has been raised. By applying a full chain redundancy design, setting proper pressure control bandwidth and control mode reconstruction under extreme fault conditions, the reliability and adaptability of the propulsion pressurization system has enhanced significantly. In addition, the complete system has been verified by the first two flights of LM-7.The reliable and intelligent propulsion pressurization system is one of the key technologies of new Chinese generation launch vehicles; a high reliability design is an important guarantee for the success of launching. This paper analyzes the domestic and overseas liquid launch vehicles in the area of propulsion pressurization systems, based on comprehensive analysis, demonstrating the reliable and intelligent propulsion pressurization system of the Long March 7（Simplified as LM-7） has been raised. By applying a full chain redundancy design, setting proper pressure control bandwidth and control mode reconstruction under extreme fault conditions, the reliability and adaptability of the propulsion pressurization system has enhanced significantly. In addition, the complete system has been verified by the first two flights of LM-7.

关 键 词：high reliability intelligent pressurization propulsion system 

分 类 号：V475.1[航空宇航科学与技术—飞行器设计]