Position/speed detection method and apparatus
    61.
    发明授权
    Position/speed detection method and apparatus 失效
    位置/速度检测方法和装置

    公开(公告)号:US4922175A

    公开(公告)日:1990-05-01

    申请号:US318688

    申请日:1989-03-03

    IPC分类号: G01D5/245 G01D5/244

    CPC分类号: G01D5/24409

    摘要: Disclosed is a position detecting method and apparatus which are suitable for detecting the position of a moving body on the basis of the output of a position detector for generating two-phase periodic waves having a phase difference of a quarter period, the method comprising the steps of: comparing either one of the two-phase periodic waves with a predetermined reference value having hysteresis to thereby obtain a roughly estimated position for every half period of the one periodic wave; analog-to-digital converting the two-phase periodic waves and a zero-cross value for every sampling period to thereby obtain a finely estimated position; and detecting the position of the moving body on the basis of the roughly estimated position and the finely estimated position while correcting an error due to the hysteresis at the starting point of the roughly estimated position, by use of the relationship between the roughly estimated position and the finely estimated position. According to this method/apparatus, continuity between the roughly estimated position and the finely estimated position can be maintained, so that exact and high-resolution position detection can be performed.

    摘要翻译: 公开了一种位置检测方法和装置,其适用于根据用于产生具有四分之一周期的相位差的两相周期波的位置检测器的输出来检测移动体的位置,该方法包括步骤 :将两相周期波中的任一个与具有滞后的预定参考值进行比较,从而获得一个周期波的每半个周期的粗略估计位置; 在每个采样周期对模拟数字转换两相周期波和零交叉值,从而获得精细估计的位置; 并且通过使用粗略估计位置与粗略估计位置之间的关系,在粗略估计位置和精确估计位置的基础上检测移动体的位置,同时校正由于在粗略估计位置的起点处的滞后导致的误差 精细估计的位置。 根据该方法/装置,能够维持粗略估计位置与精细估计位置之间的连续性,从而能够进行精确,高分辨率的位置检测。

    Apparatus for processing input/output pulses for use in microcomputers
    62.
    发明授权
    Apparatus for processing input/output pulses for use in microcomputers 失效
    用于处理用于微型计算机的输入/输出脉冲的装置

    公开(公告)号:US4809165A

    公开(公告)日:1989-02-28

    申请号:US935739

    申请日:1986-11-28

    申请人: Shigeki Morinaga

    发明人: Shigeki Morinaga

    CPC分类号: G06F9/226 G06F13/124

    摘要: In an I/O pulse processing apparatus associated with a microcomputer, an I/O processing task is required by the microcomputer in the form of the combination of task microinstructions, each of which includes an instruction code specifying one of basic I/O processing operations and a code for specifying one or two registers necessary for executing the basic I/O processing operation. The apparatus includes an I/O task register part having a task register group consisting of plural task registers, which store the task microinstructions supplied from the microcomputer and necessary for executing the task required thereby, and a task signal generator for producing address signals for the task register group, according to which the task microinstructions are read out successively from the task register group. There is further provided an I/O operation part including a register group comprising plural registers, each of which is capable of being specified by a task microinstruction and performing a register function necessary for completion of the basic I/O processing operation specified by the instruction code of the task microinstruction, and an arithmetic unit connected to the register group to perform an arithmetic operation on the basis of data from the specified registers in accordance with control signals produced by decoding the task microinstruction.

    摘要翻译: 在与微计算机相关联的I / O脉冲处理装置中,微型计算机需要以任务微指令组合的形式的I / O处理任务,每个任务微指令包括指定基本I / O处理操作之一的指令代码 以及用于指定执行基本I / O处理操作所需的一个或两个寄存器的代码。 该装置包括I / O任务寄存器部分,其具有由多个任务寄存器组成的任务寄存器组,该任务寄存器组存储从微型计算机提供的并且执行所需任务所必需的任务微指令,以及任务信号发生器,用于产生用于 任务寄存器组,从任务寄存器组中依次读出任务微指令。 还提供了一种I / O操作部分,其包括一个寄存器组,该寄存器组包括多个寄存器,每个寄存器组能够由任务微指令指定,并执行完成指令指定的基本I / O处理操作所需的寄存器功能 任务微指令的代码和连接到寄存器组的算术单元,以根据来自指定寄存器的数据根据​​由解码任务微指令产生的控制信号执行算术运算。

    Multi phase magnetic sensor apparatus for detecting the position of
moving member
    63.
    发明授权
    Multi phase magnetic sensor apparatus for detecting the position of moving member 失效
    用于检测移动部件的位置的多相磁传感器装置

    公开(公告)号:US4594548A

    公开(公告)日:1986-06-10

    申请号:US547259

    申请日:1983-10-31

    CPC分类号: G01D5/145

    摘要: An apparatus for detecting the position of a moving member comprising a moving member having a magnetic substance with magnetical signals recorded thereon, and a stationary magnetic sensor confronting the moving member and having a plurality of magnetoresistive elements, wherein the magnetoresistive elements are disposed in the magnetic sensor such that the elements have a phase difference of .pi./m in electrical angle, where m is an even number larger than or equal to four, for obtaining the positional signal of the moving member.

    摘要翻译: 一种用于检测移动构件的位置的装置,包括具有记录有磁信号的磁性物质的移动构件和面对移动构件并具有多个磁阻元件的固定磁传感器,其中磁阻元件设置在磁 传感器,使得元件具有电角度的π/ m的相位差,其中m是大于或等于4的偶数,用于获得移动构件的位置信号。

    Method and system for controlling speed of electric motor
    64.
    发明授权
    Method and system for controlling speed of electric motor 失效
    电动机速度控制方法及系统

    公开(公告)号:US4580084A

    公开(公告)日:1986-04-01

    申请号:US396877

    申请日:1982-07-09

    IPC分类号: H02P1/18 H02P7/00 H02P1/04

    摘要: A motor speed control method and system allow the motor to be accelerated to the steady state in the minimum time even under conditions of varying load torque, varying load inertia and varying power voltage. The motor is controlled by a voltage including a component of proportional term which is a function of a difference between a command speed and a detected speed, and a component of integral term which is summed during an acceleration phase. The acceleration of the motor during the starting process is measured and the integral term is modified basing on the result. The integral term may be memorized so that it is used as the integral term when the subsequent starting phase is completed. The integral term may be obtained from the acceleration and deceleration in the starting process.

    摘要翻译: 电动机速度控制方法和系统允许电动机在最小时间内加速到稳定状态,即使在变化的负载转矩,变化的负载惯量和变化的电力电压的条件下。 电动机由包括作为指令速度和检测速度之间的差的函数的比例项的分量和在加速阶段期间相加的积分项的分量的电压控制。 测量启动过程中电机的加速度,并根据结果对积分项进行修正。 积分项可以被记住,以便当后续的起始阶段完成时被用作积分项。 积分项可以从启动过程中的加速和减速获得。

    Apparatus for driving a polyphase brushless motor with a suppressed
torque ripple
    65.
    发明授权
    Apparatus for driving a polyphase brushless motor with a suppressed torque ripple 失效
    用于驱动具有抑制转矩脉动的多相无刷电动机的装置

    公开(公告)号:US4511827A

    公开(公告)日:1985-04-16

    申请号:US404646

    申请日:1982-08-03

    IPC分类号: H02P6/10 H02P7/28

    CPC分类号: H02P6/10

    摘要: An apparatus for driving a polyphase brushless motor with a resulting torque ripple effectively suppressed. The apparatus comprises a rotor position sensor, a controller responsive to the output of the sensor for generating a control signal and an inverter serving to conduct electric current to each phase of the motor as a result of commutation under control of the control signal from the controller. The controller is particularly provided with a device for increasing the value of integration of the electric current for each phase of the motor with respect to time as measured from the instant of switching among motor phase currents effected with the control signal.

    摘要翻译: 用于驱动多相无刷电动机的装置能有效地抑制所产生的转矩脉动。 该装置包括转子位置传感器,响应于用于产生控制信号的传感器的输出的控制器,以及用于在来自控制器的控制信号的控制下作为换向的结果将电流传导到电动机的每相的逆变器 。 该控制器特别地设置有一个装置,用于相对于从控制信号所产生的电动机相电流之间的切换时刻测量的时间,增加电动机各相电流的积分值。

    Electronic engine control apparatus
    66.
    发明授权
    Electronic engine control apparatus 失效
    电子发动机控制装置

    公开(公告)号:US4276601A

    公开(公告)日:1981-06-30

    申请号:US943930

    申请日:1978-09-20

    摘要: An electronic engine control apparatus in which the timing of the ignition and the fuel injection are calculated from a negative pressure in the intake manifold of the engine or the flow rate of suction air and the rotational speed of the engine. A reference register group is constituted of registers for storing the result of the calculation while an instantaneous register group is made up of registers for storing the instantaneous states of actuators. One of the registers of the reference register group and one of the registers of the instantaneous register group are selected according to a stage timing signal so that the contents of the two registers selected are compared with each other.

    摘要翻译: 一种电子发动机控制装置,其中从发动机的进气歧管中的负压或吸入空气的流量和发动机的转速来计算点火和燃料喷射的定时。 参考寄存器组由用于存储计算结果的寄存器构成,而瞬时寄存器组由用于存储致动器的瞬时状态的寄存器组成。 根据级定时信号选择参考寄存器组的寄存器和瞬时寄存器组的一个寄存器之一,使得所选择的两个寄存器的内容相互比较。

    Protective device in a motor-operated sewing machine
    67.
    发明授权
    Protective device in a motor-operated sewing machine 失效
    电动缝纫机的保护装置

    公开(公告)号:US4104978A

    公开(公告)日:1978-08-08

    申请号:US806154

    申请日:1977-06-13

    IPC分类号: D05B69/36 D05B69/22 H02P3/04

    CPC分类号: D05B69/22

    摘要: In a protective device for controlling a sewing machine at a predetermined number of revolutions by a motor equipped with a clutch mechanism and a brake mechanism which are electromagnetically actuated, a protective device is constructed comprising a detector to detect substantially the rotation of the driving shaft of the sewing machine, and a detector to detect the voltage of a control circuit with an output from the detectors being compared with a reference value representative of a predetermined driving state for the sewing machine, so that when the output of the detector becomes lower than the reference value, the operation of the control circuit is terminated, whereby safe operation is provided for the apparatus and an operator.

    摘要翻译: 在通过具有电磁致动装置的离合器机构和制动机构的电动机以预定转数来控制缝纫机的保护装置中,构成了保护装置,该保护装置包括检测器,用于基本上检测驱动轴的旋转 缝纫机和检测器,用于检测来自检测器的输出的控制电路的电压与代表缝纫机的预定驱动状态的参考值进行比较,使得当检测器的输出变得低于 参考值,终止控制电路的操作,由此为设备和操作者提供安全操作。