초록 ▼

An aircraft speed control system for use with an automatic throttle position control system and automatic flight control system permits capturing and maintaining a commanded airspeed during the capturing of a desired altitude from either climbing or descending flight. The system manipulates the thro

An aircraft speed control system for use with an automatic throttle position control system and automatic flight control system permits capturing and maintaining a commanded airspeed during the capturing of a desired altitude from either climbing or descending flight. The system manipulates the throttles at a variable rate dependent on the difference between the actual thrust of the aircraft and the desired cruising thrust at the selected airspeed and inversely proportional to the actual altitude rate. A signal derived from thrust error and altitude rate signals is utilized to generate a limiter control signal which is combined with an engine pressure ratio signal to generate a drive signal for urging the aircraft to capture precisely the commanded airspeed.

대표청구항 ▼

Engine control apparatus for an automatic flight control system including a throttle position controller for urging an aircraft to capture a commanded airspeed during an altitude capture maneuver comprising: means responsive to an operational characteristic of said engine for generating a signal rep

Engine control apparatus for an automatic flight control system including a throttle position controller for urging an aircraft to capture a commanded airspeed during an altitude capture maneuver comprising: means responsive to an operational characteristic of said engine for generating a signal representing actual engine thrust, means for generating a signal representing a predetermined engine thrust at said commanded airspeed and a predetermined altitude, means for generating a signal representing an actual rate of change in altitude, means for combining said actual engine thrust signal, said predetermined engine thrust signal and said altitude rate signal for generating a command signal to drive said throttle position controller for urging said aircraft to capture said airspeed.