航天器工程2017，Vol.26Issue(5)：28-33,6.DOI:10.3969/j.issn.1673-8748.2017.05.005
利用过载开关和程序控制器的航天器减速着陆系统开伞控制方法
Parachute Deployment Control Method for Spacecraft Descent and Landing System Based on Overload Switch and Program Controller
摘要
Abstract
The control method of parachute deployment for spacecraft is a key part of the de-scent and landing system design, it directly affects the success of the descent and landing system.Aiming at the problem of low reliability and singleness mode of parachute deploy-ment control based on overload switch and time controller, a control method of parachute deployment based on the overload switch and program controller is presented which can ef-fectively identify the overload switch failure mode and provide control signals for parachute deployment reliably.The parameters setting method of overload switch,axial acceleration cal-culation of the re-entry capsule are raised,and the analysis of the error for axial accelera-tion,parachute deployment altitude and additional overload are given.Flight test shows that working mode of overload switch is well-judged, control precision of parachute deployment altitude meets requirement,and the design has a certain practical value and it also is safety and reliable.关键词
航天器减速着陆系统/开伞控制/过载开关/程序控制器/时间延迟Key words
spacecraft descent and landing system/parachute deployment control/overload switch/program controller/time-delay分类
航空航天引用本文复制引用
雷江利,邓黎,吕智慧,赵铮..利用过载开关和程序控制器的航天器减速着陆系统开伞控制方法[J].航天器工程,2017,26(5):28-33,6.基金项目
国家重大科技专项工程 （）
