Autonomous Control Technologies of the New Generation Launch Vehicle

• 作者: HU Haifeng PAN Hao HE Yong WANG Cong
• 来源期刊: 中国航天（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: NEW GENERATION MEDIUM-LIFT LAUNCH VEHICLE—LM-8
• 页码范围: 25-34
• 页数: 10页
• 语种: 英文
• DOI: 10.3969/j.issn.1671-0940.2021.02.003

摘要

This paper introduces the autonomous control technologies for a new generation launch vehicle for guid-ance and attitude control.Based on the iterative guidance mode(IGM)of Long March launch vehicles,the autonomous compensation IGM(ACIGM)for the terminal attitude deviation during the coasting phase is proposed.Considering the characteristics of large static instability and weak bearing capacity,the attitude control technology based on active distur-bance rejection control(ADRC)and a control method based on an accelerometer are proposed.Targeting at non-fatal failures that may occur during flights,autonomous guidance reconstruction technology,nozzle fault diagnosis and re-construction technology in the coasting phase are studied.Some of the autonomous control technologies proposed in this paper have achieved good control results as seen through flight verification.