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    Segment wipe control for windshield wiper system
    12.
    发明授权
    Segment wipe control for windshield wiper system 失效
    WINISHIELD WIPER系统的分段WIPE控制

    公开(公告)号：US3675103A

    公开(公告)日：1972-07-04

    申请号：US3675103D

    申请日：1970-10-06

    Applicant: GEN MOTORS CORP

    Inventor： ELLIOTT JAMES O

    IPC: B60S1/48 ,  B60S1/02

    CPC classification number: B60S1/482 ,  Y10S318/02

    Abstract: The segment wipe control of this invention affords operation of an automotive windshield wiper system to wipe an area substantially less than the area of the normal wipe. To effect the segment wipe, the current supplied the armature of the windshield wiper system''s DC drive motor is periodically reversed to cause the motor to reverse the direction of its rotation. To accomplish this reversal of current, a double-pole, double-throw relay energized through two cam actuated switches is utilized to switch the motor feed connections and concurrently reverse the polarity of the current supplied to the motor. The cam actuated switches are alternately actuated by a cam driven by the motor''s output shaft, thus synchronizing the reversals of the DC motor with the sweep of the windshield wiper blades which are driven by linkage connected with the motor''s output shaft.

    Abstract translation: 本发明的段擦拭控制提供了汽车挡风玻璃刮水器系统的操作，以擦拭基本上小于普通擦拭物区域的区域。 为了实现段擦拭，提供挡风玻璃刮水器系统的直流驱动电机的电枢的电流周期性地反转，使电机反转其旋转方向。 为了实现电流的这种反转，利用通过两个凸轮致动的开关通电的双极双掷继电器来切换电动机进给连接并同时反转提供给电动机的电流的极性。 凸轮致动的开关由电动机的输出轴驱动的凸轮交替致动，从而使直流电动机的反转与通过与电动机的输出轴连接的连杆驱动的挡风玻璃刮水器叶片的扫掠同步。

    Control circuit for adjusting and regulating the speed of a brushless direct current motor responsive to voltages induced in the armature windings
    13.
    发明授权
    Control circuit for adjusting and regulating the speed of a brushless direct current motor responsive to voltages induced in the armature windings 失效
    用于调整和调节无臂直流电机对于在绞痛绕组中引起的电压的速度的控制电路

    公开(公告)号：US3667019A

    公开(公告)日：1972-05-30

    申请号：US3667019D

    申请日：1970-10-12

    Applicant: GEN MOTORS CORP

    Inventor： ELLIOTT JAMES O ,  JACKSON GEORGE W

    IPC: H02K29/10 ,  H02P6/06 ,  H02K29/00

    CPC classification number: H02K29/10 ,  H02P6/06

    Abstract: A control circuit for adjusting and regulating the speed of a brushless direct current motor having three ''''wye'''' connected armature coils, a permanent magnet field and a rotatable shaft. Each motor armature coil is connected in series with the collector-emitter electrodes of a respective switching transistor across a source of direct current supply potential, the baseemitter electrodes of each switching transistor being connected across the source of direct current supply potential through a respective photosensitive electrical switching device and the collector-emitter electrodes of a control transistor. A selectively variable magnitude of a direct current control potential is applied across the base-emitter electrodes of the control transistor and the photosensitive electrical switching devices are sequentially illuminated as the shaft rotates to sequentially establish the switching transistor base-emitter drive circuits. A direct current regulating potential generated in the motor armature coils as they are ''''cut'''' by the flux produced by the permanent magnet field is of a magnitude proportional to the speed of the motor and is applied in a reverse polarity relationship to the control potential for regulating the speed of the motor.

    Abstract translation: 一种用于调节和调节具有三个“Y”“连接的电枢线圈，永久磁场和可旋转轴的无刷直流电动机的速度的控制电路。 每个电动机电枢线圈与相应的开关晶体管的集电极 - 发射极电极串联连接在直流电源电压源上，每个开关晶体管的基极 - 发射极电极通过相应的直流电源电极连接 感光电开关器件和控制晶体管的集电极 - 发射极电极。 直流电流控制电位的选择性变化量施加在控制晶体管的基极 - 发射极之间，并且随着轴旋转以顺序地建立开关晶体管基极 - 发射极驱动电路，光敏电气开关器件依次被照亮。 在由电动机电枢线圈产生的直流电流调节电位由永久磁场产生的磁通“切断”时，电动机电枢线圈产生的直流调节电位的大小与电动机的转速成正比，并且以与控制电位相反的极性关系 调节电机的速度。

    Circuit arrangement for establishing an energizing circuit for alternating current induction motors
    14.
    发明授权
    Circuit arrangement for establishing an energizing circuit for alternating current induction motors 失效
    用于建立用于替代电流感应电动机的电能电路的电路装置

    公开(公告)号：US3560825A

    公开(公告)日：1971-02-02

    申请号：US3560825D

    申请日：1968-11-29

    Applicant: GEN MOTORS CORP

    Inventor： ELLIOTT JAMES O

    IPC: H02P25/10 ,  H02P5/40

    CPC classification number: H02P25/10

    Abstract: A circuit arrangement for establishing an energizing circuit for alternating current induction motors across a compatible alternating current supply potential source. Two silicon controlled rectifiers, each with a resistor connected across the gate-cathode electrodes thereof, are connected in parallel with each other in an opposite polarity relationship and in series with the motor to be energized and the alternating current input circuit terminals of a full wave diode bridge type rectifier circuit are connected across the silicon controlled rectifiers. Electrical trigger signals produced by an associated control circuit during each potential half cycle of the alternating current supply potential are applied across the negative output terminal of the bridge rectifier circuit and the alternating current input terminals thereof through the respective resistors, in parallel.

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