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    Active control of machine performance
    1.
    发明授权
    Active control of machine performance 失效
    主动控制机器性能

    公开(公告)号：US5431008A

    公开(公告)日：1995-07-11

    申请号：US920495

    申请日：1992-08-20

    Applicant: Colin F. Ross ,  Andrew J. Langley ,  Graham P. Eatwell

    Inventor： Colin F. Ross ,  Andrew J. Langley ,  Graham P. Eatwell

    IPC: F01B25/02 ,  F01N1/06 ,  F02B27/00 ,  F02B27/06 ,  F02M35/12 ,  F02C9/00

    CPC classification number: F01N1/065 ,  F02B27/001 ,  F02M35/1038 ,  F02M35/125 ,  Y02T10/146

    Abstract: A control system is described for improving continuous dynamical control on the pressure in the outlet or inlet system (3) or both of a machine (1) in order to control the performance of the machine. The system comprises an actuator (4) for varying the pressure in the selected system, a sensor (8) for monitoring the operation of the machine and producing a signal indicative thereof, and control means (5) responsive to the sensor signals for driving the actuator, wherein the control means operates to adjust the machine performance according to predetermined data, to optimise the machine performance. The data may be in a memory (look-up table) or the control means may operate in accordance with an algorithm. A second sensor may be provided to generate a signal indicative of sound produced by one or other or both of the outlet and inlet systems to produce signals to enable the control means simultaneously to reduce noise generated by the machine as well as to improve the performance of the machine by active feedback.

    Abstract translation: PCT No.PCT / GB91 / 00266 Sec。 371日期：1992年8月20日 102（e）日期1992年8月20日PCT 1991年2月2日PCT PCT。 公开号WO91 / 13243 日期1991年9月5日。描述了一种控制系统，用于改进机器（1）的出口或入口系统（3）或两者的压力的连续动态控制，以便控制机器的性能。 该系统包括用于改变所选择的系统中的压力的​​致动器（4），用于监测机器的操作并产生指示其的信号的传感器（8），以及响应于传感器信号驱动 致动器，其中控制装置根据预定数据操作以调节机器性能，以优化机器性能。 数据可以在存储器（查找表）中，或者控制装置可以根据算法进行操作。 可以提供第二传感器以产生指示由出口和入口系统中的一个或两个或两个出口和入口系统产生的声音的信号，以产生信号，以使得控制装置能够同时降低由机器产生的噪声以及改善 该机通过主动反馈。

    Active vibration control system with multiple inputs
    2.
    发明授权
    Active vibration control system with multiple inputs 失效
    主动振动控制系统具有多路输入

    公开(公告)号：US5812682A

    公开(公告)日：1998-09-22

    申请号：US605307

    申请日：1996-02-06

    Applicant: Colin F. Ross ,  Graham P. Eatwell

    Inventor： Colin F. Ross ,  Graham P. Eatwell

    IPC: F16F15/02 ,  G10K11/178 ,  H04R25/00

    CPC classification number: F16F15/02 ,  G10K11/1784 ,  G10K2210/3018 ,  G10K2210/3026 ,  G10K2210/3027

    Abstract: An active vibration control system having at least two input sensors generating first signals representative of a primary vibration field, a plurality of actuators driven by second signals and producing a secondary vibration field, monitoring sensors responsive to both the primary and secondary vibration fields and producing third signals, and a controller having one output waveform generator for each second signal and responsive to the first signals to generate respective second signals so that vibration is reduced in a chosen region excited by both the primary and secondary fields, the controller being adaptive to adjust the waveform generator outputs to maintain the reduced vibration in this region.

    Abstract translation: 一种主动振动控制系统，具有至少两个输入传感器，产生表示主振动场的第一信号，由第二信号驱动的多个致动器并产生二次振动场，响应于初级振动场和次级振动场两者而产生第三 信号，以及控制器，其具有用于每个第二信号的一个输出波形发生器，并响应于第一信号产生相应的第二信号，使得在由主场和辅助场两者激励的选定区域中的振动减小，所述控制器适于调整 波形发生器输出，以保持该区域的振动减小。

    Active control of unsteady motion phenomena in turbomachinery
    3.
    发明授权
    Active control of unsteady motion phenomena in turbomachinery 失效
    主动控制涡轮机械不稳定运动现象

    公开(公告)号：US5005353A

    公开(公告)日：1991-04-09

    申请号：US511726

    申请日：1990-04-20

    Applicant: Elizabeth Acton ,  Alexander M. Cargill ,  Colin F. Ross ,  Graham P. Eatwell

    Inventor： Elizabeth Acton ,  Alexander M. Cargill ,  Colin F. Ross ,  Graham P. Eatwell

    IPC: F01D17/02 ,  F01D25/06 ,  F04D27/02 ,  G05D16/20

    CPC classification number: F04D27/0284 ,  F01D17/02 ,  F01D25/06 ,  F04D27/02 ,  G05D16/2066 ,  F05D2220/323 ,  F05D2260/962 ,  F05D2270/14

    Abstract: A control system actively controls at least one troublesome mode of an unsteady motion phenomenon in turbomachinery in order to enable an increase in the operating range of the turbomachinery. For example, rotor blade flutter or rotating stall may be controlled in a turbocompressor. The control system has a control bandwidth which is at least partly coextensive with the bandwidth of the unsteady motion phenomenon and operates by passing sensor signals related to the unsteady motion phenomenon from a sensor array in the turbomachine to a mode filter which produces a signal or signals which are related to the troublesome mode or modes. The selected mode signals are amplified and phase-shifted by time-variable amounts so as to produce control signals having controlled amplitude and phase relationship to the troublesome mode. Actuators in an actuator array are continuously driven by the control signals and produce physical effects in the turbomachine which act counter to the troublesome mode without exciting others.

    Abstract translation: 控制系统主动地控制涡轮机械中至少一种麻烦的不稳定运动现象的模式，以便能够增加涡轮机械的运行范围。 例如，可以在涡轮压缩机中控制转子叶片颤动或旋转失速。 控制系统具有与非稳态运动现象的带宽至少部分共同延伸的控制带宽，并且通过将与非稳态运动现象相关的传感器信号从涡轮机中的传感器阵列传递到产生信号或信号的模式滤波器来进行操作 这与麻烦的模式或模式有关。 所选择的模式信号被放大并以时间可变量相移，以产生具有与麻烦模式的受控幅度和相位关系的控制信号。 致动器阵列中的致动器由控制信号连续驱动，并且在涡轮机中产生物理效应，其与麻烦的模式相反，而不激励其它模式。

    Active control of unsteady motion phenomena in turbomachinery
    5.
    发明授权
    Active control of unsteady motion phenomena in turbomachinery 失效
    主动控制涡轮机械不稳定运动现象

    公开(公告)号：US4967550A

    公开(公告)日：1990-11-06

    申请号：US187169

    申请日：1988-04-28

    Applicant: Elizabeth Acton ,  Alexander M. Cargill ,  Colin F. Ross ,  Graham P. Eatwell

    Inventor： Elizabeth Acton ,  Alexander M. Cargill ,  Colin F. Ross ,  Graham P. Eatwell

    IPC: F01D25/06 ,  F04D27/02 ,  G05D16/20

    CPC classification number: G05D16/2066 ,  F01D25/06 ,  F04D27/02 ,  F05D2260/962 ,  F05D2270/14

    Abstract: A control system actively controls at least one troublesome mode of an unsteady motion phenomenon in turbomachinery in order to enable an increase in the operating range of the turbomachinery. For example, rotor blade flutter or rotating stall may be controlled in a turbocompressor. The control system has a control bandwidth which is at least partly coexstensive with the bandwidth of the unsteady motion phenomenon and operates by passing sensor signals related to the unsteady motion phenomenon from a sensor array in the turbomachine to a mode filter which produces a signal or signals which are related to the troublesome mode or modes. The selected mode signals are amplified and phase-shifted by time-variable amounts so as to produce control signals having controlled amplitude and phase relationship to the troublesome mode. Actuators in an actuator array are continuously driven by the control signals and produce physical effects in the turbomachine which act counter to the troublesome mode without exciting others.

    Abstract translation: 控制系统主动地控制涡轮机械中至少一种麻烦的不稳定运动现象的模式，以便能够增加涡轮机械的运行范围。 例如，可以在涡轮压缩机中控制转子叶片颤动或旋转失速。 控制系统具有与非稳态运动现象的带宽至少部分共同的控制带宽，并通过将与非稳态运动现象相关的传感器信号从涡轮机中的传感器阵列传递到产生信号或信号的模式滤波器来进行操作 这与麻烦的模式或模式有关。 所选择的模式信号被放大并以时间可变量相移，以产生具有与麻烦模式的受控幅度和相位关系的控制信号。 致动器阵列中的致动器由控制信号连续驱动，并且在涡轮机中产生物理效应，其与麻烦的模式相反，而不激励其它模式。

    Active sound and/or vibration control
    6.
    发明授权
    Active sound and/or vibration control 失效
    主动声音和/或振动控制

    公开(公告)号：US5365594A

    公开(公告)日：1994-11-15

    申请号：US776261

    申请日：1992-11-10

    Applicant: Colin F. Ross ,  Graham P. Eatwell

    Inventor： Colin F. Ross ,  Graham P. Eatwell

    IPC: G10K11/178 ,  H03H21/00 ,  G10K11/16

    CPC classification number: G10K11/1784 ,  H03H21/0012 ,  G10K2210/121 ,  G10K2210/123 ,  G10K2210/127 ,  G10K2210/1281 ,  G10K2210/3032 ,  G10K2210/3045 ,  G10K2210/3051

    Abstract: A signal processing system, especially for use in vibration control, wherein noise-free signals inductive of the timing of a primary source and of the timing of at least one interfering secondary source of periodic vibrations are provided as inputs, together with a vibration input signal derived from a sensor sampling the vibrations, and wherein the signals are processed to produce an output representative of interference free vibration of the primary source.

    Abstract translation: PCT No.PCT / GB90 / 00617 Sec。 371日期：1992年11月10日 102（e）日期：1992年11月10日PCT 1990年4月20日PCT PCT。 公开号WO90 / 02447 日期1990年3月8日。一种信号处理系统，特别是用于振动控制的信号处理系统，其中将主要源的定时感应的无噪声信号和周期性振动的至少一个干扰次级源的定时提供为输入 以及从传感器得到的振动输入信号对振动进行采样，并且其中处理信号以产生代表主要源的无干扰振动的输出。

    Vehicle braking system
    10.
    发明授权
    Vehicle braking system 失效
    车辆制动系统

    公开(公告)号：US5421644A

    公开(公告)日：1995-06-06

    申请号：US222602

    申请日：1994-04-01

    Applicant: Robert D. Prescott ,  Colin F. Ross

    Inventor： Robert D. Prescott ,  Colin F. Ross

    IPC: B60T8/46 ,  B60T8/172 ,  B60T8/1761 ,  B60T8/1764 ,  B60T8/32 ,  B60T8/36 ,  B60T8/50 ,  B60T8/58 ,  B60T8/72

    CPC classification number: B60T8/1764 ,  B60T8/323 ,  B60T8/361 ,  B60T8/505 ,  B60T8/58 ,  B60T2210/124

    Abstract: A vehicle braking system comprising a controller responsive to wheel speed signals from at least two wheel speed sensors for sensing skid conditions of at least two wheels and for generating skid control instructions; a plurality of wheel brakes responsive to fluid pressure, hereinafter referred to as brake pressure, supplied thereto; a supply device, comprising a common supply valve, for supplying brake pressure to the brakes from a fluid pressure supply in accordance with a brake operating signal; and a skid controller controlled by the skid control instructions for controlling the brake pressure in a plurality of cycles each of which comprises a pressure reduction phase and a pressure increase phase, and a first comparitor to compare the co-efficient of friction of the lower friction surface with a predetermined threshold, and/or a second comparitor to compare the relative values of the co-efficients of friction of the surfaces with which at least two of the wheels are engaged and a device to operate the skid controller in a select low mode if the comparitors determine that a) the co-efficient of friction of the lower friction surface is above a predetermined absolute level, and/or b) the co-efficients of friction of the surfaces with which at least two of the wheels are engaged differ by less than a predetermined amount, and in a select high mode if the comparitors determine that a) the co-efficient of friction of a lower friction surface is at or below a predetermined absolute level, and/or b) the co-efficients of friction of the surfaces differ by at least the predetermined amount.

    Abstract translation: 一种车辆制动系统，包括响应于来自至少两个车轮速度传感器的车轮速度信号的控制器，用于感测至少两个车轮的滑行条件并用于产生防滑控制指令; 响应于流体压力的多个车轮制动器，以下称为制动压力; 供应装置，包括公共供应阀，用于根据制动操作信号从流体压力供应器向制动器提供制动压力; 以及由滑动控制指令控制的滑动控制器，用于控制多个循环中的制动压力，每个循环包括减压阶段和增压阶段，以及第一比较器，用于比较下摩擦系数的摩擦系数 具有预定阈值的表面和/或第二比较器，以比较与至少两个车轮接合的表面的摩擦系数的相对值和用于以选择低模式操作滑动控制器的装置的相对值 如果比较器确定a）下摩擦表面的摩擦系数高于预定绝对水平，和/或b）与其中至少两个车轮接合的表面的摩擦系数不同 并且在选择高模式下，如果比较器确定a）下摩擦表面的摩擦系数的有效性在等于或低于预定的绝对值 e水平和/或b）表面摩擦系数相差至少预定量。

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