Research on Hydraulic Flow Allocation Method in Flight Control System Based on Identification of Pilot’s Intention

Feihong Jiang, Zhenbao Liu, Wang Bo, Xue Yuan, Chunming Tong, Xu Zhou, Lulu Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Under fault condition of the hydraulic system or the extreme operating conditions of the pilot, the low pressure phenomenon may occur due to the available flow of the hydraulic system being lower than the required flow, which leads to the abnormal operation of actuators of flight control system. The lowest pressure operating point was analyzed graphically. It is determined jointly by the actuator flow-pressure characteristics, aerodynamic load, hydraulic pump and pipeline flow-pressure characteristics. The fuzzy control theory is used to identify the urgency of pilot’s maneuvering intention. On this basis, the available flow is allocated, which not only prevents the low pressure phenomenon, but also ensures the maximum possible realization of the pilot’s intention under the condition of limited flow.

Original languageEnglish
Title of host publicationAdvances in Guidance, Navigation and Control - Proceedings of 2020 International Conference on Guidance, Navigation and Control, ICGNC 2020
EditorsLiang Yan, Haibin Duan, Xiang Yu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages2239-2251
Number of pages13
ISBN (Print)9789811581540
DOIs
StatePublished - 2022
EventInternational Conference on Guidance, Navigation and Control, ICGNC 2020 - Tianjin, China
Duration: 23 Oct 202025 Oct 2020

Publication series

NameLecture Notes in Electrical Engineering
Volume644 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Guidance, Navigation and Control, ICGNC 2020
Country/TerritoryChina
CityTianjin
Period23/10/2025/10/20

Keywords

  • Flight control system
  • Flow allocation
  • Flow-pressure characteristics
  • Fuzzy control
  • Pilot’s intention

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