公开(公告)号：AU657157B2

公开(公告)日：1995-03-02

申请号：AU2323592

申请日：1992-07-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ADAMS DONALD L JR ,  WRIGHT STUART C ,  VERZELLA DAVID J ,  LAMONTAGNE TROY J

IPC: B64C27/57 ,  G05B5/01 ,  G05B13/02 ,  G05D1/00

Abstract: A control system, having an input command signal and driving a prime mover, is provided with variable magnitude and/or rate input signal limiting that is adjusted by maps 68,70,72,74 which set the limits for a variable magnitude limiter 14 and a variable rate limiter 22 as a function of the prime mover rate. The limiting is adjusted dynamically as the prime mover rate changes. When the prime mover enters an undesirable operating condition, the maps only limit the command signal in the direction of such condition. The adjustable limiting is enabled or disabled based on the position, rate, and/or acceleration of the prime mover.

公开(公告)号：CA2113731A1

公开(公告)日：1993-03-18

申请号：CA2113731

申请日：1992-07-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： GOLD PHILLIP J ,  LAPPOS NICHOLAS D ,  ADAMS DON L ,  WRIGHT STUART C

IPC: G05D1/08

Abstract: A helicopter flight control system includes an automatic turn coordination system which provides a coordinating yaw command signal to the tail rotor of the helicopter. The system stores on command a trim attitude (e.g., signals indicative of bank angle, lateral ground speed, and lateral acceleration) about which automatic turn coordination is provided, thus providing the pilot with automatic turn coordination about attitudes other than wings level.

公开(公告)号：GB2140173B

公开(公告)日：1986-07-30

申请号：GB8410986

申请日：1984-04-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FISCHER WILLIAM C ,  WRIGHT STUART C ,  VERZELLA DAVID JOHN

IPC: G05B23/02 ,  B64C13/00 ,  B64C13/24 ,  G05B9/03 ,  G05D1/00

Abstract: In a dual actuator system, runaways are identified by comparing the position and rate of one actuator to another. When there is a threshold position discrepancy and a sustained rate discrepancy, a fault is indicated. The faster actuator is identified as the runaway.

公开(公告)号：DE3416241A1

公开(公告)日：1984-11-08

申请号：DE3416241

申请日：1984-05-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FISCHER WILLIAM C ,  VERZELLA DAVID JOHN ,  WRIGHT STUART C

IPC: G05B23/02 ,  B64C13/00 ,  B64C13/24 ,  G05B9/03 ,  G05D1/00

Abstract: In a dual actuator system, runaways are identified by comparing the position and rate of one actuator to another. When there is a threshold position discrepancy and a sustained rate discrepancy, a fault is indicated. The faster actuator is identified as the runaway.

公开(公告)号：IT8420762D0

公开(公告)日：1984-05-02

申请号：IT2076284

申请日：1984-05-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FISCHER WILLIAM C ,  ADAMS DON LUIS ,  WRIGHT STUART C ,  VERZELLA DAVID J

IPC: B64C13/00 ,  B64C13/08 ,  B64C13/18 ,  B64C13/44 ,  B64C27/56 ,  B64C27/57 ,  G05B9/03 ,  G05D1/08 ,  B64C

Abstract: The directions of travel of an inner and an outer loop actuator are monitored for movement in opposite directions within selected ranges and the outer loop actuator is disabled under selected conditions. These conditions may include movement of both the inner and outer loop actuators in opposite directions, any one of which has been detected moving at a rate greater than a selected rate or to a position outside a selected range. The invention is particularly suited for an aircraft trim actuator shutdown monitor system.

公开(公告)号：ES2083752T3

公开(公告)日：1996-04-16

申请号：ES92915770

申请日：1992-07-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ADAMS DONALD L JR ,  WRIGHT STUART C ,  VERZELLA DAVID J ,  LAMONTAGNE TROY J

IPC: G05B5/01 ,  B64C27/57 ,  G05B13/02 ,  G05D1/00

Abstract: A control system, having an input command signal and driving a prime mover, is provided with variable magnitude and/or rate input signal limiting that is adjusted by maps 68,70,72,74 which set the limits for a variable magnitude limiter 14 and a variable rate limiter 22 as a function of the prime mover rate. The limiting is adjusted dynamically as the prime mover rate changes. When the prime mover enters an undesirable operating condition, the maps only limit the command signal in the direction of such condition. The adjustable limiting is enabled or disabled based on the position, rate, and/or acceleration of the prime mover.

公开(公告)号：DE3887722D1

公开(公告)日：1994-03-24

申请号：DE3887722

申请日：1988-09-14

Applicant: UNITED TECHNOLOGIES CORP

Inventor： NOVIS ARI M ,  WRIGHT STUART C ,  ADAMS DON L

IPC: H02P7/06 ,  H02P7/00 ,  H02P7/288

Abstract: A method of and an arrangement for controlling the operation of a reversible D.C. electric motor including a winding having two ends each of which is connected to both the positive and negative terminals of an electric current source through respective control switches that can be selectively closed and opened in response to command signals to apply voltage differentials across the winding with attendant electric current flow through the winding in one or the opposite direction for operating the electric motor in one or the other of its senses of rotation with intervening rotation sense reversals utilize the original command signals for determining when the sense of rotation reversal would result in an excessive electric current flow through the winding. In such a case, the original command signals are temporarily replaced by substitute command signals of such a character that both of the winding ends are connected through the respective control switches to only one of the electric current source terminals with attendant dynamic braking of the electric motor.

公开(公告)号：AU2211088A

公开(公告)日：1989-03-16

申请号：AU2211088

申请日：1988-09-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： NOVIS ARI M ,  WRIGHT STUART C ,  ADAMS DON L

IPC: H02P7/06 ,  H02P7/00 ,  H02P7/288 ,  H02P7/282

Abstract: A method of and an arrangement for controlling the operation of a reversible D.C. electric motor including a winding having two ends each of which is connected to both the positive and negative terminals of an electric current source through respective control switches that can be selectively closed and opened in response to command signals to apply voltage differentials across the winding with attendant electric current flow through the winding in one or the opposite direction for operating the electric motor in one or the other of its senses of rotation with intervening rotation sense reversals utilize the original command signals for determining when the sense of rotation reversal would result in an excessive electric current flow through the winding. In such a case, the original command signals are temporarily replaced by substitute command signals of such a character that both of the winding ends are connected through the respective control switches to only one of the electric current source terminals with attendant dynamic braking of the electric motor.

公开(公告)号：IT1173943B

公开(公告)日：1987-06-24

申请号：IT2076184

申请日：1984-05-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FISCHER WILLIAM C ,  WRIGHT STUART C ,  VERZELLA DAVID JOHN

IPC: B64C13/00 ,  G05B9/03 ,  G05D1/00 ,  G05B

公开(公告)号：IT1173942B

公开(公告)日：1987-06-24

申请号：IT2076084

申请日：1984-05-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FISCHER WILLIAM C ,  WRIGHT STUART C ,  VERZELLA DAVID JOHN

IPC: G05B23/02 ,  B64C13/00 ,  B64C13/24 ,  G05B9/03 ,  G05D1/00 ,  G05B

Abstract: In a dual actuator system, runaways are identified by comparing the position and rate of one actuator to another. When there is a threshold position discrepancy and a sustained rate discrepancy, a fault is indicated. The faster actuator is identified as the runaway.