Motor control system utilizing switched controller
    1.
    发明授权
    Motor control system utilizing switched controller 失效
    电机控制系统利用开关控制器

    公开(公告)号:US4430605A

    公开(公告)日:1984-02-07

    申请号:US276435

    申请日:1981-06-22

    申请人: Bruce E. Arnold

    发明人: Bruce E. Arnold

    IPC分类号: H02P25/04 H02P27/02 H02P3/06

    CPC分类号: H02P27/026

    摘要: A motor control system utilizes a low cost switched controller for provding operator initiated control signals. The controller has therein a pair of switches which together define four possible modes of operation, depending upon operator manipulation of the controller. These four modes cause the system to either stop the motor, decrease the speed of the motor, maintain the speed of the motor constant, or increase the speed of the motor.

    摘要翻译: 电机控制系统利用低成本开关控制器来提供操作者发起的控制信号。 控制器具有一对开关,这些开关一起限定四种可能的操作模式,这取决于操作者操纵控制器。 这四种模式导致系统停止电机,降低电机速度,保持电机转速恒定,或提高电机转速。

    Automatic back-tack system for industrial sewing machine
    2.
    发明授权
    Automatic back-tack system for industrial sewing machine 失效
    工业缝纫机自动背胶系统

    公开(公告)号:US4154179A

    公开(公告)日:1979-05-15

    申请号:US857162

    申请日:1977-12-05

    申请人: Bruce E. Arnold

    发明人: Bruce E. Arnold

    CPC分类号: D05B27/22

    摘要: A high speed electronically controlled industrial sewing machine having an automatic back-tack capability is disclosed. To achieve balanced stitching in the first and last tacks of a seam while still operating at high speed, the stitches in the tacks are counted and additionally a fixed time delay is provided in the feed reversal command circuitry to compensate for system inertias which result in response time delays of the sewing machine to the feed reversal command signals.

    摘要翻译: 公开了一种具有自动背胶能力的高速电子控制工业缝纫机。 为了在仍然以高速运转的情况下在接缝的第一和最后一个缝隙中实现平衡缝合,对钉头中的缝合进行计数,另外在进给反转命令电路中还提供固定的时间延迟以补偿导致响应的系统惯性 缝纫机对进给反转指令信号的时间延迟。

    Velocity servo with adaptive tachometer feedback
    3.
    发明授权
    Velocity servo with adaptive tachometer feedback 失效
    速度伺服带自适应转速计反馈

    公开(公告)号:US4305025A

    公开(公告)日:1981-12-08

    申请号:US148864

    申请日:1980-05-12

    申请人: Bruce E. Arnold

    发明人: Bruce E. Arnold

    IPC分类号: H02P29/00 H02P23/00 H02P5/16

    CPC分类号: H02P23/0077 H02P23/16

    摘要: A velocity servo for a motor wherein a high speed tachometer is replaced by an arrangement which mathematically converts the input voltage and current to the motor into a speed signal, utilizing known formulas and constants. To maintain accuracy of the servo when the constants change value with the temperature, an inexpensive low speed tachometer is utilized to derive a signal indicative of the actual speed of the motor and this speed signal is compared with the mathematically computed speed signal. In the event that there is a difference, the constants are modified in accordance with such difference. This can be implemented either by electrically alterable circuit values or through computer or microprocessor techniques.

    摘要翻译: 一种用于电动机的速度伺服器,其中使用已知的公式和常数,将高速转速计替换为将输入电压和电流转换为电动机的装置转换为速度信号。 为了在常数随温度变化值时保持伺服的精度,使用便宜的低速转速表来导出指示电动机的实际速度的信号,并将该速度信号与数学计算的速度信号进行比较。 在存在差异的情况下,常数根据这样的差异进行修改。 这可以通过电可改变的电路值或通过计算机或微处理器技术来实现。

    Overload protection in a motor control system
    6.
    发明授权
    Overload protection in a motor control system 失效
    电机控制系统中的过载保护

    公开(公告)号:US4490656A

    公开(公告)日:1984-12-25

    申请号:US509482

    申请日:1983-06-30

    申请人: Bruce E. Arnold

    发明人: Bruce E. Arnold

    CPC分类号: H02P25/145 H02H7/085

    摘要: A microcomputer-based motor control system provides overload protection by incrementing a register whenever a full power condition exists and decrementing the register when less than a full power condition exists. When the register reaches a predetermined value, this indicates an overload condition.

    摘要翻译: 基于微机的电动机控制系统通过在存在全功率状态时递增寄存器来提供过载保护,并且当小于满功率条件时递减寄存器。 当寄存器达到预定值时,表示过载状态。