公开(公告)号：US3973177A

公开(公告)日：1976-08-03

申请号：US526783

申请日：1974-11-25

Applicant: Louis A. Hausknecht

Inventor： Louis A. Hausknecht

IPC: H02P7/06 ,  H02P5/10

CPC classification number: H02P7/066

Abstract: A system for controlling the speed of a direct current motor. The system employs a pair of breaker points for opening and closing the circuit containing the motor. By varying the frequency of contact between the breaker points and the period of time the points are in contact, different pulsations of current are transmitted to the motor to regulate its speed.

Abstract translation: 用于控制直流电动机速度的系统。 该系统采用一对断路器点来打开和关闭包含电动机的电路。 通过改变断路器点之间的接触频率和点接触的时间段，不同的电流脉动被传送到电动机以调节其速度。

公开(公告)号：US3585479A

公开(公告)日：1971-06-15

申请号：US3585479D

申请日：1969-04-30

Applicant: GEN MOTORS CORP

Inventor： ZICKEL THOMAS A ,  TEMPLIN JACKSON R

IPC: B60H1/00 ,  H02P5/10

CPC classification number: B60H1/00828 ,  Y10S388/934

Abstract: In a motor vehicle, a vacuum motor is employed to vary the electrical resistance that is connected in circuit with an air blower motor so that the volume of cold or warm air supplied to the passenger compartment of the vehicle is automatically modified to maintain the temperature of the air within the vehicle at a desired value.

公开(公告)号：US3573584A

公开(公告)日：1971-04-06

申请号：US3573584D

申请日：1967-09-01

Applicant: KEARNS ROBERT W

Inventor： KEARNS ROBERT W

IPC: B60S1/48 ,  H02P5/10

CPC classification number: B60S1/48 ,  B60S1/483

Abstract: A windshield wiper control which operates the wiper blades continuously or intermittently with a dwell period between each wiping cycles. In the intermittent operation the wiper blades are responsive to the condition of the windshield. Transistors are provided for controlling the intermittent operation and also for controlling the continuous mode of operation.

公开(公告)号：US4061951A

公开(公告)日：1977-12-06

申请号：US623821

申请日：1975-10-20

Applicant: Alfred William Barber

Inventor： Alfred William Barber

IPC: H01H43/02 ,  H03K17/28 ,  H03K17/64 ,  H02P5/10

CPC classification number: H03K17/64 ,  H01H43/02 ,  H03K17/28

Abstract: A transistor circuit including a capacitor charging circuit and an actuator such as an electric motor provides a two part cyclic timing circuit, one part being one complete revolution of the motor and the other part being the charging time of the capacitor. The entire device is designed to run for an extended period on two dry cells. Practically no current is drawn while the motor is at rest contributing to a long battery life.

Abstract translation: 包括电容器充电电路和诸如电动机的致动器的晶体管电路提供两部分循环定时电路，一部分是电动机的一整圈，另一部分是电容器的充电时间。 整个设备设计为在两个干电池上延长运行。 实际上，当电机处于静止状态时，实际上不会产生电流，从而延长电池寿命。

公开(公告)号：US3614571A

公开(公告)日：1971-10-19

申请号：US3614571D

申请日：1968-12-16

Applicant: GEN ELECTRIC

Inventor： KOCH ALBERT F

IPC: H02P29/00 ,  G05B11/26 ,  G05B11/36 ,  H02P7/00 ,  H02P7/292 ,  H02P5/10

CPC classification number: H02P7/293 ,  Y10S388/917

Abstract: A digital motor control system compensates for the nonlinearity due to operation from a sinusoidal AC power source. A digital error signal is fed through a variable gain digital amplifier whose characteristics are such that the gain varies so as to correct for the nonlinearities which normally result. The output of the variable gain digital amplifier is used to directly control the transfer of power as, for example, by initiating the conduction of controllable rectifiers. The variable gain digital amplifier acts to vary the gain at two different rates, the second rate being less than the first by some factor of two.

公开(公告)号：US4423362A

公开(公告)日：1983-12-27

申请号：US379867

申请日：1982-05-19

Applicant: Charles E. Konrad ,  Robert C. Clark, deceased

Inventor： Charles E. Konrad ,  Robert C. Clark, deceased

IPC: B60L3/06 ,  B60L15/08 ,  B60L15/28 ,  H02P7/285 ,  H02P7/29 ,  H02P7/298 ,  H02P5/10

CPC classification number: H02P7/285 ,  B60L15/08 ,  H02P7/298 ,  Y02T10/645 ,  Y02T10/7258 ,  Y10S388/903 ,  Y10S388/92 ,  Y10S388/934

Abstract: A control system for a separately excited DC electric traction motor in an electrically powered vehicle incorporates a plurality of current limit functions designed to protect both the motor and control electronics. A time dependent current limit is utilized to permit overcurrent conditions for limited time intervals such that additional power can be obtained for sudden torque requirements without having to design the motor or control electronics to function under continuous high torque conditions. The continuous current limit values based on percent conduction time of a thyristor chopper circuit in the control system is modified in response to overheating of the motor and the main switching thyristor, to overvoltage on the thyristor commutating capacitor and to available voltage for powering the motor.

Abstract translation: 用于电动车辆中的单独激励的直流电力牵引电动机的控制系统包括设计成保护电动机和控制电子装置的多个限流功能。 利用时间相关的电流限制来允许有限时间间隔的过电流条件，使得可以获得突发的转矩要求的附加功率，而不必将电动机或控制电子设备设计为在连续的高扭矩条件下起作用。 基于控制系统中的晶闸管斩波电路的导通时间百分比的连续电流限制值是根据电动机和主开关晶闸管的过热，晶闸管换向电容器的过电压以及为电动机供电的可用电压进行修改的。

公开(公告)号：US4105935A

公开(公告)日：1978-08-08

申请号：US733023

申请日：1976-10-15

Applicant: Kazuo Arai ,  Yoshiaki Igarashi ,  Masaki Suzuki ,  Nobuya Sano ,  Toshikazu Yosumi

Inventor： Kazuo Arai ,  Yoshiaki Igarashi ,  Masaki Suzuki ,  Nobuya Sano ,  Toshikazu Yosumi

IPC: H02P23/00 ,  H02P5/10

CPC classification number: H02P23/22 ,  Y10S388/915 ,  Y10S388/916

Abstract: A motor speed control apparatus has a frequency generator for generating a frequency signal the frequency of which is proportional to the motor speed; a first pulse generator for producing a first pulse train having the same period as that of the frequency signal, each pulse of the first pulse train having a pulse width which is shorter than the period of the frequency signal and decreases as the frequency of the frequency signal increases; a second pulse generator for producing a second pulse train, the leading edges of the pulses of the second pulse train coinciding in timing with those of the first pulse train, each pulse of the second pulse train having a constant pulse width nearly the same as that of each pulse of the first pulse train obtained by the motor rotation at a predetermined speed; and a subtractor for producing a third pulse train by the subtraction of the pulses of the first pulse train and the corresponding pulses of the second pulse train, whereby there is produced a motor torque in correspondence with the third pulse train, and the motor speed can be controlled with suppressed motor vibration and excellent torque-speed characteristics of the motor.

Abstract translation: 电动机速度控制装置具有用于产生其频率与电动机速度成比例的频率信号的频率发生器; 用于产生与频率信号具有相同周期的第一脉冲串的第一脉冲发生器，第一脉冲串的每个脉冲具有比频率信号的周期短的脉冲宽度，并且随着频率的频率而减小 信号增加; 用于产生第二脉冲串的第二脉冲发生器，第二脉冲序列的脉冲的前沿与第一脉冲序列的脉冲的时序重合，第二脉冲序列的每个脉冲具有与之相同的恒定脉冲宽度 通过电机以预定速度旋转获得的第一脉冲串的每个脉冲; 以及用于通过减去第一脉冲序列的脉冲和第二脉冲串的相应脉冲来产生第三脉冲串的减法器，由此产生与第三脉冲串对应的电动机转矩，并且电动机速度可以 受电机振动抑制和电动机转矩特性优异的控制。

公开(公告)号：US3555387A

公开(公告)日：1971-01-12

申请号：US3555387D

申请日：1968-02-21

Applicant: NAT ELECTRO MECHANICAL SYSTEMS

Inventor： ULRICH THOMAS J

IPC: H02P7/29 ,  H02P5/10

CPC classification number: H02P7/2913

Abstract: A MOTOR SPEED CONTROL SYSTEM FOR A VELOCITY TYPE SERVOMECHANISM INCLUDING A FORWARD DRIVE NETWORK, A REVERSE DRIVE NETWORK, A GATING AND LATCHING NETWORK, A COMPARE AMPLIFIER, A MULTIVIBRATOR, AND A FEEDBACK NETWORK, WHEREIN THE GENERATED VOLTAGE OF THE SERVOMECHANISM IS DIRECTLY COMPARED WITH THE INPUT VOLTAGE AND THE SERVOMECHANISM IS DRIVEN FOR A FIXED TIME PERIOD WITH A CONSTANT VOLTAGE TO CORRECT FOR ANY SENSED DEVIATION.

公开(公告)号：US4195254A

公开(公告)日：1980-03-25

申请号：US924583

申请日：1978-07-14

Applicant: David Gurwicz ,  Grant C. Melocik

Inventor： David Gurwicz ,  Grant C. Melocik

IPC: H02H5/04 ,  H02H7/08 ,  H02P5/10

CPC classification number: H02H5/04 ,  H02H7/0811 ,  Y10S388/92 ,  Y10S388/934

Abstract: A control circuit is provided for a d.c. motor for sensing the temperature of the field winding and automatically reducing the temperature of the field winding when the temperature exceeds a preselected value.

Abstract translation: 提供一个控制电路用于直流 电机，用于感测励磁绕组的温度，并且当温度超过预选值时自动降低励磁绕组的温度。

公开(公告)号：US4132933A

公开(公告)日：1979-01-02

申请号：US754072

申请日：1976-12-23

Applicant: James P. Barcz ,  James H. Bigelow ,  James R. Jaeschke ,  Earl T. Piber ,  Gordon B. Spellman

Inventor： James P. Barcz ,  James H. Bigelow ,  James R. Jaeschke ,  Earl T. Piber ,  Gordon B. Spellman

IPC: H02M3/00 ,  H01H3/00 ,  H01H9/06 ,  H02P7/06 ,  H02P5/10

CPC classification number: H02P7/066 ,  H01H3/004 ,  H01H9/06 ,  Y10S388/937

Abstract: A chopper for adjustably controlling the average value of the voltage supplied from a D.C. battery source to a motor load for adjustable speed control. The chopper comprises manually-operable spring-biasing means for applying force to close a contact to energize the motor and electromagnetic means simultaneously energized for re-opening the contact. This occurs at a high repetition rate so that the average value of the voltage across the motor determines the motor speed. This average value of voltage is proportional to the closed-to-open time ratio of the contact and is adjustable by manual control. Two versions are disclosed. In the first version, the spring-biasing force is applied to the contact by depressing a trigger. In the second version, the spring-biasing force is applied to the contact by rotation of a knob. Both versions may use either tension or compression spring force.

Abstract translation: 用于可调节地控制从直流电池电源提供的电压到电动机负载的可调速度控制的斩波器。 斩波器包括用于施加力以闭合触点以激励电动机的手动操作的弹簧偏压装置和同时通电以重新打开触点的电磁装置。 这以高重复率发生，使得电动机两端的电压的平均值确定电动机速度。 电压的平均值与触点的闭合开启时间比例成比例，可通过手动控制进行调节。 公开了两个版本。 在第一版本中，通过按压触发器将弹簧偏置力施加到触点。 在第二种形式中，通过旋钮的旋转将弹簧偏置力施加到触点。 两种版本都可以使用张力或压缩弹簧力。