AIRCRAFT MOTION COMMAND ELECTRONIC CONTROL SYSTEM AND METHOD FOR CONTROLLING PITCH SHAFT MOTION

摘要

PURPOSE: To prevent the danger of overflare during flare of landing by providing an electronic flight control system for correcting flare control according to a pitch attitude command mode of the operation during flight flare. CONSTITUTION: An electronic flight control system 13 where the output of a linear transducer 25 fitted to a column 23 of a column and wheel control device 21 is A/D converted 27 and then input in a pitch shaft control device 11 includes a first gain circuit 33 for inputting the output of an integrator 31 and a two-position switch 47 for inputting the value obtained by adding the respective outputs of a second gain circuit 35 by a summing amplifier 51 as an attitude command separated upward to one terminal. A landing flare mode pitch attitude command obtained by adding the output of a sample hold circuit 45 for storing the output of a first grade lug filter 43 connected to the pitch attitude sensor and the output of a third gain circuit 37 by a summing amplifier 53 is input to the other terminal of the switch 47.