초록 ▼

A system and technique is disclosed which enables an aircraft to naturally respond to pilot inputs during automatic flight control of aircraft attitude or course and to smoothly return to that attitude or course following pilot maneuvers. The aircraft attitude control channels of an aircraft control

A system and technique is disclosed which enables an aircraft to naturally respond to pilot inputs during automatic flight control of aircraft attitude or course and to smoothly return to that attitude or course following pilot maneuvers. The aircraft attitude control channels of an aircraft control system are held at a predetermined attitude reference by an automatic flight control system or programmed to follow a particular navigational course by a flight director guidance system. The aircraft control stick is coupled to disconnect the predetermined pitch and roll attitude from flight control following a stick movement of a predetermined distance or the application of a predetermined force to the stick so that the AFCS or flight director guidance system no longer attempts to hold the set attitude or navigational course. The control stick commands an angular rate of change proportional to the magnitude of the pilot\s stick displacement or force. Upon release of the force and return of the aircraft control stick to a neutral position, a “fly through”fading circuit smoothly returns the aircraft to its original attitude or navigational course.

대표청구항 ▼

An aircraft attitude control system comprising: means for receiving a signal representing a preset aircraft attitude; means for receiving a signal representing actual aircraft attitude; means for combining said signals to provide an error signal as a control output during a first control mode for au

An aircraft attitude control system comprising: means for receiving a signal representing a preset aircraft attitude; means for receiving a signal representing actual aircraft attitude; means for combining said signals to provide an error signal as a control output during a first control mode for automatically controlling said aircraft attitude so that said actual aircraft attitude is equal to said preset aircraft attitude; means for removing said error signal as said control output during a second control mode and manually substituting a signal as said control output for changing aircraft attitude during said second control mode; and means responsive to said error signal for developing a profile signal during said second control mode and modifying said error signal with said profile signal upon return to said first control mode such that said modified error signal returns said aircraft attitude from a changed attitude to said preset attitude in accordance with a predetermined profile, said means for developing and modifying comprising dual signal integration loops which are coupled to integrate said error signal during said second control mode to produce an integrated signal and to subtract said integrated signal from said error signal to produce said modified error signal upon return to said first control mode and provide said modified error signal as said control output for returning said aircraft to said preset attitude.