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81. 发明授权

US4587883A High resolution control system for a pressure-responsive positioning device 失效
标题翻译：用于压力响应定位装置的高分辨率控制系统
公开(公告)号：US4587883A
公开(公告)日：1986-05-13
申请号：US701799
申请日：1985-02-15
申请人： Franz-Josef Ehrentraut , Manfred Henning
发明人： Franz-Josef Ehrentraut , Manfred Henning
IPC分类号： G05D3/12 , F15B9/09 , G05B11/28 , G05B11/36 , G05D3/18 , F15B9/03 , F15B13/16
CPC分类号： F15B9/09 , G05B11/28 , G05D3/18
摘要： Two magnetic valves, one of which reduces the pressure and the other one of which increases the pressure by which the displacement of a positioning member is controlled, only one of them operated at a time in accordance to the sign of the error signal, are operated in a pulsed mode with variable pulse width when the error signal is within a range of low absolute value and in a continuous mode of operation when the error signal has a higher absolute value. Variation of the magnitude of the error signal within the intermittent valve operation range controls pulse width variation. Hysteresis is provided in a transition between operating modes of a valve by a time delay of the mode change after the error signal has risen or fallen past a threshold value of signal. High displacement resolution is obtained as well as independence from effect of temperature drifts and magnetic valve characteristics.
摘要翻译：两个电磁阀，其中一个减小了压力，另一个电磁阀增加了定位部件的位移被控制的压力，其中只有一个按照误差信号的符号一次操作，当误差信号在低绝对值的范围内时，并且当误差信号具有较高的绝对值时，以连续工作模式，以脉冲宽度可变的脉冲模式。在间歇阀操作范围内的误差信号幅度的变化控制脉冲宽度变化。在误差信号上升或下降超过信号阈值之后，通过模式改变的时间延迟，在阀的工作模式之间的过渡中提供迟滞。获得高位移分辨率，并且不受温度漂移和磁阀特性的影响。

82. 发明授权

US4562393A Modulation scheme for PWM-type amplifiers or motors 失效
标题翻译： PWM型放大器或电机的调制方案
公开(公告)号：US4562393A
公开(公告)日：1985-12-31
申请号：US537028
申请日：1983-09-29
申请人： Robert J. Loyzim , Michael P. Blythe
发明人： Robert J. Loyzim , Michael P. Blythe
IPC分类号： H02P7/00 , G05B11/28
CPC分类号： H02P7/04 , Y10S388/902 , Y10S388/915
摘要： In a motor control system for a DC motor, a modulation circuit provides a plurality of pulse width modulated signals to control the current applied to the motor. The motor is coupled to a current sensing resistor and a plurality of switches responsive to the pulse width modulated control signals. The output of the current sensing resistor is summed with an input current command to provide an error signal. A modulation circuit which includes a waveform generator generates a plurality of interposed triangular waves adjustably offset by a predetermined amount. The triangular waves are compared to the error signal to provide pulse width modulated control signals which cause a "dither" current to be applied to the motor when there is substantially no input command and currents having substantially decreasing form factors to be applied as the input command increases.
摘要翻译：在用于DC电动机的电动机控制系统中，调制电路提供多个脉冲宽度调制信号以控制施加到电动机的电流。电动机耦合到电流感测电阻器和响应于脉宽调制控制信号的多个开关。电流检测电阻的输出与输入电流指令相加以提供误差信号。包括波形发生器的调制电路产生可调整偏移预定量的多个插入三角波。将三角波与误差信号进行比较，以提供脉冲宽度调制控制信号，当基本上没有输入命令和电流具有基本上减小的形状因子作为输入指令时，会产生“抖动”电流施加到电动机增加

83. 发明授权

US4496829A Bang-bang dual-mode integral controller with proportional control output useful for temperature control 失效
标题翻译： Bang-bang双模积分控制器，具有比例控制输出，可用于温度控制
公开(公告)号：US4496829A
公开(公告)日：1985-01-29
申请号：US448661
申请日：1982-12-10
申请人： Arthur G. Black , John H. Dodge , Larry M. Ernst
发明人： Arthur G. Black , John H. Dodge , Larry M. Ernst
IPC分类号： G05B11/18 , G03G15/20 , G05B11/26 , G05B11/28 , G05D23/24 , H05B1/02
CPC分类号： G05B11/28 , G03G15/2039 , G05D23/1917 , G05D23/24
摘要： Control system which measures overshoot or undershoot time of a controlled variable with respect to a set value and adjusts a proportional count if the overshoot or undershoot time period exceeds fixed values. The proportional count is used to control the system output in a proportional manner, such as supplying k out of every n cycles of power, where k represents the proportional count. To prevent excessively long periods of overshoot or undershoot, an overlimit detector provides adjustments of the proportional count when the overshoot or undershoot measured time exceeds an overlimit value.The control system has general applicability but is described in the temperature control of a fuser hot roll such as used in electrophotostatic copiers.
摘要翻译：控制系统相对于设定值测量受控变量的过冲或下冲时间，并且如果过冲或下冲时间段超过固定值，则调整比例计数。比例计数用于以比例方式控制系统输出，例如在每n个功率周期中提供k，其中k表示比例计数。为了防止过长时间的过冲或下冲，当过冲或下冲测量时间超过上限值时，叠加检测器提供比例计数的调整。控制系统具有一般适用性，但是在诸如用于静电复印机中的定影热辊的温度控制中进行了描述。

84. 发明授权

US4480303A Digital controller of analog systems containing isolation circuitry and error detection circuitry 失效
标题翻译：包含隔离电路和错误检测电路的模拟系统的数字控制器
公开(公告)号：US4480303A
公开(公告)日：1984-10-30
申请号：US389960
申请日：1982-06-18
申请人： Keisuke Takada , Hiroo Okuhara
发明人： Keisuke Takada , Hiroo Okuhara
IPC分类号： G05B9/02 , G05B11/28 , G05B23/02 , G05B13/00
CPC分类号： G05B23/0235 , G05B11/28
摘要： A digital controller includes a central processor unit for generating a processed signal to be stored in an up-down counter. A manipulation signal generation circuit converts the contents of the up-down counter to a manipulation signal for an actuator. A feedback signal from a first coupling circuit connected to the up-down counter through a pulse width converter is applied to the central processor through an analog input circuit. The output signal of the up-down counter from the first coupling circuit and the output signal of the manipulation signal generation circuit are compared by a monitor circuit. An abnormality detection signal of the monitor circuit is generated as a result of the comparison and is applied to the central processor unit through a second coupling circuit.
摘要翻译：数字控制器包括一个中央处理器单元，用于产生要存储在升降计数器中的处理信号。操作信号生成电路将升降计数器的内容转换为致动器的操作信号。来自通过脉冲宽度转换器连接到升降计数器的第一耦合电路的反馈信号通过模拟输入电路施加到中央处理器。来自第一耦合电路的升降计数器的输出信号和操纵信号发生电路的输出信号由监视电路进行比较。作为比较的结果生成监视电路的异常检测信号，并通过第二耦合电路施加到中央处理器单元。

85. 发明授权

US4375029A Control apparatus for thermal equipment particularly a heat engine 失效
标题翻译：用于热设备的控制设备，特别是热机
公开(公告)号：US4375029A
公开(公告)日：1983-02-22
申请号：US190636
申请日：1980-09-24
申请人： Per G. Zacho , Kjeld Ahrendsen
发明人： Per G. Zacho , Kjeld Ahrendsen
IPC分类号： G05B5/01 , G05B11/28 , G05D23/19 , H02M7/155 , H05B1/02
CPC分类号： H02M7/1557 , G05B11/28 , G05D23/1921
摘要： The invention relates to control apparatus for heat actuated devices of the type having a heating resistor and a spring biased motor member movable in response to heat generated by the resistor. A source of rectified AC voltage for the heating resistor is regulated by a controlled rectifier in series with the resistor. There is a comparator circuit for comparing a desired setting with the actual position of the motor member and generating a continuously variable control signal of a value corresponding to the departure value. An ignition circuit for pulsing the controlled rectifier has inputs including the control signal, a half wave AC voltage and a time dependent decreasing signal. The ignition circuit has an input threshold below which pulses are generated and above which pulses are not generated.
摘要翻译：本发明涉及一种具有加热电阻器的热致动装置的控制装置和可响应于电阻器产生的热而可移动的弹簧偏置电动机构件。用于加热电阻器的整流AC电压源由与电阻器串联的可控整流器调节。存在用于将所需设置与电动机构件的实际位置进行比较并产生与出发值对应的值的连续可变控制信号的比较器电路。用于脉冲可控整流器的点火电路具有包括控制信号，半波交流电压和时间相关减小信号的输入。点火电路具有低于该阈值的输入阈值，并且其上方不产生脉冲。

86. 发明授权

US4368411A Control system for electric motor 失效
标题翻译：电动机控制系统
公开(公告)号：US4368411A
公开(公告)日：1983-01-11
申请号：US282797
申请日：1981-07-13
申请人： H. Keith Kidd
发明人： H. Keith Kidd
IPC分类号： H02P6/08 , H02P6/24 , G05B11/28
CPC分类号： H02P6/24
摘要： A four quadrant control system for a brushless D.C. motor wherein the windings are energized via a drive switching circuit in a bridge configuration and the switching circuit is in turn controlled by a read-only memory. Pulse-width modulation control signals and position signals are supplied to the read-only memory as addresses together with other control signals. The system operates in a regenerative mode when changing direction and automatically makes a smooth transition into a motoring mode when the back EMF of the motor is no longer large enough to satisfy the requirements of the current loop.
摘要翻译：一种用于无刷直流电动机的四象限控制系统，其中绕组通过桥式结构的驱动开关电路被通电，并且开关电路又由只读存储器控制。脉冲宽度调制控制信号和位置信号作为地址与其他控制信号一起提供给只读存储器。当电动机的反电动势不再足够大以满足电流环路的要求时，系统在改变方向时工作在再生模式，并自动平稳过渡到电动模式。

87. 发明授权

US4352048A Electromagnetic actuator apparatus 失效
标题翻译：电磁执行装置
公开(公告)号：US4352048A
公开(公告)日：1982-09-28
申请号：US122245
申请日：1980-02-19
申请人： Dieter M. O. T. Schulze
发明人： Dieter M. O. T. Schulze
IPC分类号： G05B19/414 , G11B5/55 , H01F7/16 , G05B11/28
CPC分类号： H01F7/1638 , G05B19/4142 , G11B5/5521 , G05B2219/37007 , H01F2007/1692
摘要： An improved electromagnetic actuator apparatus comprising a plurality of circular concentric tubes of varying length arranged in length order nested about one another from shortest to longest. Solenoid coil assemblies are attached to each tube so that magnetic circuits are formed between adjacent solenoid coil assemblies attached to adjacent tubes. Stops are attached to each tube at the end opposite from the solenoid coil assemblies. One of the shortest tubes is connected to a frame by a positive motion stop in one direction. A return spring connects to a frame on one end and to a carriage attachment member which slides about the shortest concentric tube on the other end. Selective electric excitation of individual solenoid coil assemblies causes translation of said carriage attachment member. The return spring carries the means for carriage attachment back to a rest position when electrical excitation is removed.
摘要翻译：一种改进的电磁致动器装置，包括多个沿长度排列的不同长度的圆形同心管，从最短到最长彼此嵌套。电磁线圈组件连接到每个管，使得磁路在相邻的管子附近的螺线管线圈组件之间形成。止动件在与螺线管线圈组件相对的端部附接到每个管。一个最短的管子通过一个方向上的正运动停止件连接到框架。复位弹簧连接到一端的框架和连接在另一端的最短同心管上的滑架附件。单个电磁线圈组件的选择性电激励导致所述滑架附接构件的平移。当电激励被去除时，复位弹簧承载用于支架的装置回到静止位置。

88. 发明授权

US4300081A Motor voltage feedback for a servo motor control system 失效
标题翻译：伺服电机控制系统的电机电压反馈
公开(公告)号：US4300081A
公开(公告)日：1981-11-10
申请号：US130542
申请日：1980-03-14
申请人： Kenneth E. Van Landingham
发明人： Kenneth E. Van Landingham
IPC分类号： H02P7/288 , H02P7/00 , H02P7/29 , G05B11/28
CPC分类号： H02P7/2913 , H02P7/04 , Y10S388/91 , Y10S388/915
摘要： In a pulse-width-modulated servo motor control system, a signal indicative of the average terminal voltage of the servo motor is fed back to stabilize the response of the control system. Under normal conditions the feedback signal is representative of the velocity of the servo motor output shaft and thereby operates to stabilize the control system response as a function of the output shaft velocity. Under adverse conditions tending to increase the power supplied to a motor, the feedback signal increases in a manner to limit the power supplied to the motor and to maintain the control system bandwidth substantially constant.
摘要翻译：在脉冲宽度调制的伺服电动机控制系统中，反馈表示伺服电动机的平均端子电压的信号，以稳定控制系统的响应。在正常条件下，反馈信号代表伺服电机输出轴的速度，从而操作以使作为输出轴速度的函数来稳定控制系统响应。在不利条件下，为了增加提供给电动机的功率，反馈信号以限制提供给电动机的功率并使控制系统带宽保持基本恒定的方式增加。

89. 发明授权

US4295082A Pulse width modulated servo circuit 失效
标题翻译：脉宽调制伺服电路
公开(公告)号：US4295082A
公开(公告)日：1981-10-13
申请号：US127744
申请日：1980-03-06
申请人： Masato Moto , Seigo Ito
发明人： Masato Moto , Seigo Ito
IPC分类号： H02P3/08 , G05B11/26 , G05D1/02 , G05D3/18 , H02P7/00 , H02P7/29 , G05B11/28
CPC分类号： G05D1/0206 , G05D3/18 , H02P7/00
摘要： A motor servo circuit is disclosed. The motor in the motor servo circuit is driven by an output which is obtained by logically adding output pulses of a pulse stretcher circuit which stretches a pulse width of error pulses generated from an OR circuit when pulses inputted to the motor servo circuit and pulses outputted from a pulse generator in response to the input pulses are different in the pulse width to pulses having a predetermined pulse width which are generated at intervals of a predetermined member of the error pulses synchronizing therewith.
摘要翻译：公开了一种电动机伺服电路。马达伺服电路中的马达由输出驱动，该输出通过逻辑地加上脉冲拉伸器电路的输出脉冲而获得，该脉冲拉伸电路在输入到马达伺服电路的脉冲和从马达伺服电路输出的脉冲中延伸由或电路产生的误差脉冲的脉冲宽度响应于输入脉冲的脉冲发生器在脉冲宽度上与具有与其同步的误差脉冲的预定成员的间隔产生的具有预定脉冲宽度的脉冲是不同的。

90. 发明授权

US4141376A Digital servovalve drive 失效
标题翻译：数字伺服阀驱动
公开(公告)号：US4141376A
公开(公告)日：1979-02-27
申请号：US812029
申请日：1977-06-29
申请人： Daniel J. Frey
发明人： Daniel J. Frey
IPC分类号： G05B15/02 , G05B11/26 , G05B11/28 , F15B5/00 , F16P5/00 , G05D16/20
CPC分类号： G05B11/28 , Y10T137/2322
摘要： A digital system for producing a bipolar rectangular waveform of fixed frequency having a duty cycle proportional to the magnitude of an input digital word is provided to drive a servovalve. The digital word is input to a modulator which outputs a fixed frequency rectangular waveform whose duty cycle varies from 0 to 100% dependent upon the magnitude of the digital word. In order to adapt this output to drive a fail-fixed servovalve in which maximum flow occurs at a predetermined portion of maximum rated current, a scaling network is provided which limits the variation in the duty cycle of the output square wave.
摘要翻译：提供一种用于产生具有与输入数字字的大小成比例的占空比的固定频率的双极矩形波形的数字系统以驱动伺服阀。数字字被输入到调制器，该调制器根据数字字的大小输出占空比从0变化到100％的固定频率矩形波形。为了适应该输出以驱动在最大额定电流的预定部分发生最大流量的故障固定伺服阀，提供限制输出方波的占空比变化的缩放网络。

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