-
公开(公告)号：US3969661A
公开(公告)日：1976-07-13
申请号：US498663
申请日：1974-08-19
CPC分类号： H02P3/12
摘要： A motor control apparatus is disclosed which comprises a speed control device for operating at a command speed a DC motor connected to a DC power supply, a dynamic braking device for braking the motor upon the issuance of a deceleration command, and a low-speed detector for generating a detection signal when the magnitude of the braking current of the motor is reduced below a set level. When the low-speed detector is energized, the speed control device is regulated thereby to run the motor at a predetermined low speed.
摘要翻译： 公开了一种电动机控制装置，其包括用于以指令速度操作连接到直流电源的DC电动机的速度控制装置，用于在发出减速命令时制动电动机的动态制动装置，以及低速检测器 用于当电动机的制动电流的大小降低到设定水平以下时产生检测信号。 当低速检测器通电时，速度控制装置被调节从而以预定的低速运行电动机。
-
公开(公告)号：US5351027A
公开(公告)日：1994-09-27
申请号：US852663
申请日：1992-03-17
CPC分类号： G01R33/09
摘要： A magnetic sensor has a elongate sensor region formed by an elongate magneto-resistive element and an overlapping elongate conductive element. The ends of the magneto-resistive element and the conductive element are connected to terminals which are arranged in an array which is spaced in a predetermined direction from the elongate sensor region. The array may be at one side or one end of the elongate sensor region, and the terminals may have a linear arrangement within the array. The two terminals connected to the magneto-resistive element are preferably adjacent, and preferably the terminals connected to the ends of the magneto-resistive element and the conductive element closer to the array are also adjacent. A common terminal may be provided. Two such sensors may form a sensor array which is particularly suitable for use in a position sensor in e.g. a torque sensor of a power steering system.
摘要翻译： 磁传感器具有由细长磁阻元件和重叠的细长导电元件形成的细长传感器区域。 磁阻元件和导电元件的端部连接到以与从细长传感器区域预定方向隔开的阵列布置的端子。 阵列可以在细长传感器区域的一侧或一端，并且端子可以在阵列内具有线性排列。 连接到磁阻元件的两个端子优选地相邻，并且优选地，连接到磁阻元件的端部和更靠近阵列的导电元件的端子也相邻。 可以提供公共终端。 两个这样的传感器可以形成特别适合用于例如位置传感器的传感器阵列。 动力转向系统的转矩传感器。
-
公开(公告)号：US4621224A
公开(公告)日：1986-11-04
申请号：US721959
申请日：1985-04-11
CPC分类号： G01P3/489
摘要： A position/speed detection method and apparatus employing an encoder mounted on the rotary shaft of a motor in order to control the position and speed, wherein the coarse position and fine position are simultaneously detected by an encoder pulse and an encoder original signal, respectively and the detected results are combined to detect the position and speed of the motor with high precision.
摘要翻译： 一种位置/速度检测方法和装置，其使用安装在电机的旋转轴上的编码器来控制位置和速度，其中粗略位置和精细位置分别由编码器脉冲和编码器原始信号同时检测， 结合检测结果，高精度地检测电机的位置和速度。
-
公开(公告)号：US4173193A
公开(公告)日：1979-11-06
申请号：US866835
申请日：1978-01-04
CPC分类号： D05B69/26 , G05B19/042 , G05B2219/21136
摘要： An apparatus for controlling an electric sewing machine has a mechanism for transmitting the driving torque of a motor to the sewing machine to drive the same, a mechanism for imparting braking power to the sewing machine to stop the same, a mechanism for stopping the needle of said sewing machine at desired positions in its stroke and controlling means adapted to control these mechanisms. At least a part of the controlling means is constituted by a microcomputer. The signal input to the microcomputer is provided in synchronization with a synchronizing clock signal, and only such input signals as required in respective periods of operation are checked in each of the periods, so that the checking of the input signals is facilitated and accidents due to erroneous operation are avoided.
摘要翻译： 一种电动缝纫机的控制装置具有将电动机的驱动转矩传递给缝纫机进行驱动的机构，用于向缝纫机施加制动力以使其停止的机构， 所述缝纫机在其行程中的期望位置和适于控制这些机构的控制装置。 控制装置的至少一部分由微计算机构成。 输入到微计算机的信号与同步时钟信号同步地提供，并且在每个周期中仅检查在各个周期中所需的这样的输入信号，从而便于输入信号的检查和由于 避免了错误的操作。
-
公开(公告)号：US4473786A
公开(公告)日：1984-09-25
申请号：US354282
申请日：1982-03-03
IPC分类号： G05B19/23 , G05B19/416 , G05B13/00
CPC分类号： G05B19/416 , G05B19/237
摘要： A method and apparatus for controlling the angular position of a motor by controlling the revolution of the motor in response to a given positioning command value commanding a predetermined angular position of the motor shaft so as to stop the motor shaft at the predetermined angular position, wherein the acceleration of the motor being accelerated in the initial acceleration stage of the motor position control operation is calculated, and on the basis of the calculated acceleration and a commanded maximum velocity, the remainder angular distance between the deceleration starting angular position and the desired angular position of the motor and the deceleration command value in the deceleration stage are calculated so as to control the deceleration of the motor on the basis of the calculated values.
摘要翻译： 一种方法和装置，用于通过响应给定定位指令值控制电动机的转动来控制电动机的角度位置，所述定位指令值指令电动机轴的预定角位置，以将电动机轴停止在预定的角位置，其中 计算在电动机位置控制动作的初始加速阶段加速的电动机的加速度，根据计算出的加速度和命令的最大速度，减速开始角位置与期望角位置之间的剩余角距离 并且计算减速阶段的电动机的减速指令值，并根据计算出的值来控制电动机的减速度。
-
公开(公告)号：US4195585A
公开(公告)日：1980-04-01
申请号：US891034
申请日：1978-03-28
摘要： A protection apparatus for an electric sewing machine having a drive mechanism for driving the sewing machine by a motor comprises a speed detecting means for detecting a rotational speed of a shaft of the sewing machine, comparator means for comparing a rotational speed signal of the shaft of the sewing machine from the speed detecting means with an externally applied speed command signal indicative of a predetermined rotational speed of the sewing machine to determine from the comparison result whether the sewing machine is in a fault state, and invalidation means for deactivating the drive mechanism when the fault state of the sewing machine is determined by the comparison means. The protection apparatus detects the rotation of the shaft of the sewing machine while an operation command for the sewing machine is being inputted to early-detect an overload condition of the sewing machine. When an overload condition is detected, the motor and hence the sewing machine is stopped to prevent the damage of the motor.
摘要翻译： 一种用于电动缝纫机的保护装置，其具有用于通过电动机驱动缝纫机的驱动机构，包括用于检测缝纫机的轴的转速的速度检测装置，用于将缝纫机的轴的转速信号进行比较的比较装置 来自速度检测装置的缝纫机具有指示缝纫机的预定旋转速度的外部施加的速度指令信号，以根据比较结果确定缝纫机是否处于故障状态，以及用于使驱动机构失效的无效装置， 缝纫机的故障状态由比较装置决定。 当输入缝纫机的操作命令以早期检测缝纫机的过载状况时，保护装置检测缝纫机的轴的旋转。 当检测到过载情况时，电机，因此缝纫机停止，以防止电机损坏。
-
7.发明授权Method and apparatus for detection of physical quantities, servomotor system utilizing the method and apparatus and power steering apparatus using the servomotor system 失效物理量检测方法和装置，利用该方法和装置的伺服电机系统以及使用伺服电机系统的动力转向装置
公开(公告)号：US5218279A
公开(公告)日：1993-06-08
申请号：US637776
申请日：1991-01-07
CPC分类号： G01D5/145
摘要： In an apparatus of detecting an environmental physical quantity such as magnetism and temperature by utilizing a sensitive element having an internal, electrical physical quantity which changes as the environmental physical quantity changes, an external operator element is provided which acts, when the environmental physical quantity acting on the sensitive element changes, a physical quantity corresponding to the change on the sensitive element, an electrical quantity supplied to generate in the external operator a physical quantity corresponding to the change is detected, and the environmental physical quantity is detected from the electrical quantity to provide a detection signal devoid of hysteresis and "depression".
摘要翻译： 在通过利用具有随着环境物理量变化而变化的内部电气物理量的敏感元件来检测诸如磁性和温度的环境物理量的装置中，提供外部操作元件，当外部操作元件作用时 在敏感元件变化时，检测对应于敏感元件变化的物理量，在外部操作者中提供的用于产生对应于该变化的物理量的电量被检测，并且从电量检测到环境物理量 提供没有滞后和“抑制”的检测信号。
-
公开(公告)号：US4638225A
公开(公告)日：1987-01-20
申请号：US824923
申请日：1986-01-31
CPC分类号： H02P23/16 , Y10S388/912 , Y10S388/915 , Y10S388/921
摘要： A pulse width control apparatus and method for controlling motor speed wherein the number of pulses relating to more speed feedback data is counted so as to control the speed of the motor in accordance with a speed command data and a pulse width modulation signal based on the counted number of pulses. A free-running hardware timer and a soft-timer on a program controlled by an instruction execution time of a microcomputer are arranged so that ON-time data and OFF-time data of the pulse width modulation signal are selectively set in one and the other of the hardware and soft-timers in dependence on values of the ON and OFF times, respectively. The ON and OFF states of the pulse width modulation signal are changed when the contents of the hardware and soft-timers reach predetermined values so as to control the pulse width thereof.
摘要翻译： 一种用于控制电动机速度的脉冲宽度控制装置和方法，其中对与更多速度反馈数据相关的脉冲数进行计数，以便根据速度指令数据和基于计数的脉宽调制信号来控制电动机的速度 脉冲数。 在由微计算机的指令执行时间控制的程序上的自由运行的硬件定时器和软件定时器被布置成使得脉冲宽度调制信号的接通时间数据和关断时间数据被选择性地设置在一个 的硬件和软定时器分别依赖于ON和OFF时间的值。 当硬件和软定时器的内容达到预定值以便控制其脉冲宽度时，改变脉宽调制信号的ON和OFF状态。
-
9.发明授权
公开(公告)号：US4628314A
公开(公告)日：1986-12-09
申请号：US668893
申请日：1984-11-07
CPC分类号： G01P3/489 , G01D5/246 , G01P3/44 , Y10S388/901 , Y10S388/912 , Y10S388/915
摘要： A method for detecting the position and the velocity by using an encoder mounted directly on a moving body wherein original signals of the encoder are pulse-width modulated by using a sampling carrier wave and the position is detected by measuring the width of the pulses thus obtained. An apparatus for implementing the method comprises a carrier wave generation circuit, a pulse width modulation circuit which pulse-width modulates the original signals coming from the encoder by using the carrier wave, a pulse width timer which measures the width of the pulses thus modulated, and a microcomputer connected to the pulse width timer.
摘要翻译： 通过使用直接安装在移动体上的编码器来检测位置和速度的方法，其中使用采样载波对编码器的原始信号进行脉冲宽度调制，并且通过测量由此获得的脉冲的宽度来检测位置 。 实现该方法的装置包括：载波产生电路，脉冲宽度调制来自使用载波的编码器的原始信号的脉冲宽度调制电路;测量被调制脉冲宽度的脉冲宽度计时器; 和连接到脉宽定时器的微型计算机。
-
公开(公告)号：US4347536A
公开(公告)日：1982-08-31
申请号：US109499
申请日：1980-01-04
IPC分类号： G11B5/53 , G11B15/473 , G11B5/52
CPC分类号： G11B15/473 , G11B5/53
摘要： A rotary cylinder apparatus comprises a rotary drum mounted thereon with a magnetic head, a brushless motor for driving the rotary drum, a stationary drum housing the brushless motor and which is disposed opposing the rotary drum, and a revolution-rate detector for detecting the number of revolutions of the rotary drum. The brushless motor comprises a permanent magnet rotor connected to the rotary drum, a driving coil mounted on the stationary drum, and a position detector for detecting the position of the permanent magnet rotor in order to control current to be supplied to the driving coil. The detecting coil of the revolution-rate detector and the brushless motor are housed in the stationary drum and wiring of the driving coil and revolution-rate detecting coil is performed on a common wiring board. Thus, the driving section of the rotary cylinder apparatus is small-sized and made light in weight, and the number of processes of assembling the rotary cylinder apparatus can be decreased.
摘要翻译： 旋转滚筒装置包括安装有磁头的旋转滚筒，用于驱动旋转滚筒的无刷马达，容纳无刷马达的固定滚筒，与旋转滚筒相对配置，转速检测器用于检测数字 的旋转鼓的转数。 无刷电动机包括连接到旋转磁鼓的永磁转子，安装在静止磁鼓上的驱动线圈，以及位置检测器，用于检测永磁转子的位置，以控制供给驱动线圈的电流。 转速检测器的检测线圈和无刷电动机被容纳在固定鼓中，驱动线圈和转速检测线圈的布线在公共布线板上进行。 因此，旋转滚筒装置的驱动部分体积小，重量轻，并且能够减少组装旋转滚筒装置的处理次数。
-
-
-
-
-
-
-
-
-
搜索结果
183 条记录 (耗时 0.02 秒)
