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1. (WO2017178791) CONTROL SYSTEMS

Pub. No.:    WO/2017/178791    International Application No.:    PCT/GB2017/050863
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Wed Mar 29 01:59:59 CEST 2017
IPC: G05G 7/00
B64C 13/08
Applicants: BAE SYSTEMS PLC
Inventors: DEE, Justin, Mark
BEAN, Jason, Howard
Title: CONTROL SYSTEMS
Abstract:
A control system (400) for an active inceptor (103) for a fly by wire aircraft permits a zero force null point to settle to a non-zero displacement trim position. An internal position state of a second order mass spring damper model is moved in conjunction with force-displacement characteristic coordinates. This results in no second order dynamics being superimposed on the feel of the inceptor (103) when dynamically adjusting the trim position, thereby eliminating the possibility of any unpleasant buzzing been felt by the operator of the inceptor during a trimming operation.