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특허 상세정보

Two/one (2/1) fail operational electrohydraulic servoactuator

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G05B-019/02   
미국특허분류(USC) 318/564 ; 244/194 ; 91/1 ; 91/363A
출원번호 US-0175687 (1980-08-05)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 18  인용 특허 : 3
초록

Disclosed is a method of and apparatus to facilitate the operation of two servoactuators with a two/one (2/1) fail operational capability. In preferred embodiments, four signal processing channels are provided, two of which are active and directly control hydraulic servovalves which in turn controls the rate of operation of the servoactuators. Two other modeling channels produce an electrical output similar to the output expected from the servoactuator when supplied with the input to the active channel. The two actual rate indicative outputs and the two ...

대표
청구항

A redundant servoactuator system, comprising: first and second hydraulic servoactuators connected to a positionable load; a hydraulic control circuit for the servoactuators including a separate hydraulic channel for each channel for the first servoactuator, and a second electrohydraulic servovalve in the channel for the second servoactuator; and electric control means for said servovalves comprising four signal processing channels, a first one of which is connected to provide an electrical input signal for the first servovalve, and a second one of which ...

이 특허를 인용한 특허 피인용횟수: 18

  1. Bacon, Peter William; Tucker, David Roy; McLoughlin, Adam John; Coleman, David. Aircraft flight surface control system. USP2005036860452.
  2. Black, Scott E.; Keller, Kirby J.; Swearingen, Kevin. Component health assessment for reconfigurable control. USP2010037689383.
  3. Hommel, Mathias; Kraemer, Wolfgang. Control system which carries out the model-supported safety monitoring of an electronically regulated controller in the motor vehicle. USP2004106803736.
  4. Minnich George E. (Vestal NY). Electrohydraulic servovalve safety apparatus. USP1984094473876.
  5. Klansnic James E. (Bellevue WA) Turner Bernus G. (Woodinville WA). Fault monitoring system for aircraft power control units. USP1990024904999.
  6. Takats Imre J. (Bellevue WA). Flight control system employing three controllers operating a dual actuator. USP1989024807516.
  7. Takats Imre J. (Bellevue WA) Aziz George W. (Seattle WA). Flight control system employing two dual controllers operating a dual actuator. USP1989124887214.
  8. Chenoweth Charles C. (Renton WA) Takats Imre J. (Bellevue WA). Fly-by-wire lateral control system. USP1984094472780.
  9. Fukui, Atsushi. Local backup hydraulic actuator for aircraft control systems. USP2013058434301.
  10. Matsui, Gen. Local backup hydraulic actuator for aircraft control systems. USP2009107600715.
  11. Matsui, Gen. Local backup hydraulic actuator for aircraft control systems. USP2011017870726.
  12. Strenzke Hilmar (Aschaffenburg DEX). Method for two-channel safe regulation of an apparatus. USP1991085043648.
  13. Takats Imre J. (Bellevue WA) Chenoweth Charles C. (Bellevue WA). Multiple-voting fault detection system for flight critical actuation control systems. USP1993125274554.
  14. Takats Imre J. ; Talat Kausar. Opto-electric/hydraulic servoactuation. USP2001016170525.
  15. Takats Imre J. ; Talat Kausar. Opto-electric/hydraulic servocactuation. USP1999035875818.
  16. Tesar, Delbert. Rotary actuator with shortest force path configuration. USP2018019879760.
  17. Ako Hidenobu (Ogaki JPX). Servo circuit with failure detection mechanism. USP1990024902947.
  18. Thoraval Bruno (Frepillon FRX) Bertrand Jean-Luc (Tours FRX). System for servo-controlling an aircraft flight control member. USP1997025600220.