GB839180A - Improvements in or relating to control systems, especially aircraft control systems - Google Patents

Improvements in or relating to control systems, especially aircraft control systems

Info

Publication number
GB839180A
GB839180A GB33300/58A GB3330058A GB839180A GB 839180 A GB839180 A GB 839180A GB 33300/58 A GB33300/58 A GB 33300/58A GB 3330058 A GB3330058 A GB 3330058A GB 839180 A GB839180 A GB 839180A
Authority
GB
United Kingdom
Prior art keywords
signals
servomotor
modulator
resistances
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB33300/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Minneapolis Honeywell Regulator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Inc, Minneapolis Honeywell Regulator Co filed Critical Honeywell Inc
Publication of GB839180A publication Critical patent/GB839180A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/0055Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots with safety arrangements
    • G05D1/0077Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots with safety arrangements using redundant signals or controls

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

839,180. Automatic control systems. MINNEAPOLIS-HONEYWELL REGULATOR CO. Oct. 17, 1958 [Oct. 17, 1957], No. 33300/58. Class 38 (4). In a system for automatically controlling a variable in which two independent devices produce signals dependent on the magnitude of the variable, combinations of the two signals are applied to two separate channels, the output of one channel being utilized to correct the variable while the outputs of the two channels are compared to detect any malfunctioning of the system. As shown, D.C. signals from potentiometer pick-offs 43, 82 associated with identical linear accelerometers 41, 87 responsive to acceleration of an aircraft along its pitch axis are applied through resistances 101, 102 and a lag network 110 to a modulator 40 in which they are combined with a signal from a rate gyro 50. The A.C. output of modulator 40 is applied to an electronic amplifier 30 and, if a manual switch 153 has been operated to energize a self-holding relay 21, relays of amplifier 30 control a reversible D.C. servomotor 15 operating the rudder 11 to automatically stabilize the aircraft about its yaw axis. Servomotor 15 also operates a potentiometer 54 to apply positional feedback signals to modulator 40. The signals from the two accelerometers are also applied through resistances 104, 105 and a lag network 120 and combined with the signal from rate gyro 50 to control a second similar servosystem in which a servomotor 71 only operates a positional feedback potentiometer 73. The signals from the two feedback potentiometers 54, 73 are compared in a modulator and amplifier 140 so that any difference, due to malfunctioning of the system, is effective to energize a relay 131 and thereby release relay 21. In consequence the input is disconnected from servomotor 15 and an electromagnetic clutch 16 between the servomotor and the rudder disengaged. A second modulator and amplifier 146 comparing the signals from potentiometers 54, 73 and controlling a relay 135 is provided for reliability. If each pair of resistances 101, 102 and 104, 105 are unequal in inverse ratios, failure of one or other of the accelerometers is effective to disengage the automatic pilot but if all the resistances are equal the effect of such a failure is minimized by the lag networks and the automatic pilot may be disengaged by manual operation of a switch 166.
GB33300/58A 1957-10-17 1958-10-17 Improvements in or relating to control systems, especially aircraft control systems Expired GB839180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US839180XA 1957-10-17 1957-10-17

Publications (1)

Publication Number Publication Date
GB839180A true GB839180A (en) 1960-06-29

Family

ID=22181501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33300/58A Expired GB839180A (en) 1957-10-17 1958-10-17 Improvements in or relating to control systems, especially aircraft control systems

Country Status (1)

Country Link
GB (1) GB839180A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133903A (en) * 1983-01-15 1984-08-01 Cambridge Instr Ltd Improvements in and relating to control systems
FR2575119A1 (en) * 1984-12-25 1986-06-27 Honda Motor Co Ltd LIGHTING CONTROL DEVICE FOR A VEHICLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133903A (en) * 1983-01-15 1984-08-01 Cambridge Instr Ltd Improvements in and relating to control systems
FR2575119A1 (en) * 1984-12-25 1986-06-27 Honda Motor Co Ltd LIGHTING CONTROL DEVICE FOR A VEHICLE

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