公开(公告)号：US5910714A

公开(公告)日：1999-06-08

申请号：US842450

申请日：1997-04-23

申请人： W. Darrell Buchanan ,  Paul MacCready

发明人： W. Darrell Buchanan ,  Paul MacCready

IPC分类号： B62M6/45 ,  B62M6/60 ,  B62M6/75 ,  B62M23/02 ,  H02P5/16

CPC分类号： B62M6/75 ,  B62M6/45 ,  Y10T477/33

摘要： This disclosure describes an improved electrical power apparatus for assisting a rider in powering a wheeled vehicle such as a bicycle. The apparatus controllably connects a rechargeable battery to a dc motor engageable with a wheel of the vehicle in a predetermined fashion, such that the wheel is driven with a torque that varies with the vehicle's speed according to a predetermined non-uniform profile. This control advantageously can be achieved by modulating on and off a switch at a duty cycle between 0% and 100%, which is selected to provide a motor torque that decreases monotonically with the vehicle's speed, from a maximum value at zero speed to a predetermined intermediate value at a predetermined intermediate speed, and that remains at that predetermined intermediate value for speeds between the intermediate speed and a predetermined maximum speed. The apparatus further includes a charger for charging the battery using a flyback-type dc-to-dc converter.

摘要翻译： 本公开描述了一种改进的电力设备，用于辅助骑手为诸如自行车的轮式车辆供电。 该装置以可预定的方式将可再充电电池可控制地连接到可与车辆的车轮接合的直流电动机，使得车轮以根据预定的不均匀轮廓随车辆速度而变化的转矩被驱动。 该控制有利地可以通过以0％至100％之间的占空比调制开关来实现，该占空比被选择为提供与车辆速度单调减小的电动机转矩，从零速度的最大值到预定的 中间值，并且对于中间速度和预定最大速度之间的速度保持在该预定中间值。 该装置还包括充电器，用于使用反激式dc-dc转换器对电池充电。

公开(公告)号：US5811947A

公开(公告)日：1998-09-22

申请号：US586824

申请日：1996-05-03

申请人： Stewart Andrew Hurst ,  Anthony John Ainsworth ,  John Anthony Bolton

发明人： Stewart Andrew Hurst ,  Anthony John Ainsworth ,  John Anthony Bolton

IPC分类号： B60T8/173 ,  B60T8/174 ,  B60T8/40 ,  B60T8/88 ,  B60T8/90 ,  B60T17/22 ,  F04B49/06 ,  F04B49/20 ,  F04B51/00 ,  H02P5/16 ,  B60T13/16

CPC分类号： F04B51/00 ,  B60T8/4059 ,  B60T8/885 ,  B60T8/90 ,  F04B49/06 ,  F04B49/20 ,  B60T2270/406 ,  F04B2203/0202

摘要： A vehicle anti-lock braking (ABS) system having a motor-driven pump (10) for providing a hydraulic supply to the ABS system. The pump motor (10) is controlled by a series device in the form of an electronic switch (16), such as a MOSFET, to enable frequent testing of the motor circuit by short pulses which produce no significant noise. Feedback to control motor speed is obtained by measuring the e.m.f. generated by the motor (16) after it has been switched off and after a delay to allow the back e.m.f., caused by switching off the motor, to decay (preferably to zero) before the measurement operation begins. The generated voltage is integrated during a motor switch-off period, the motor speed being established in this period by subtracting the measured integrated voltage when acting as a generator from the main supply voltage (B+) . The ignition switch-controlled supply within the vehicle electrical system only operates a logic gate (40) to control the supply of direct battery power to the vehicle voltage regulator (36), the pump motor circuit and its electronic controller (16) being connected directly to the battery supply (B+) whereby to act as an energy sink to protect all silicon devices in the electrical control system except the ignition circuit logic gate means.

摘要翻译： PCT No.PCT / GB94 / 01681 Sec。 371日期：1996年5月3日 102（e）日期1996年5月3日PCT 1994年8月1日PCT PCT。 公开号WO95 / 03963 日期1995年2月9日一种具有用于向ABS系统提供液压供应的电动泵（10）的车辆防抱死制动（ABS）系统。 泵电动机（10）由诸如MOSFET的电子开关（16）形式的串联装置控制，以便能够通过不产生显着噪声的短脉冲来频繁地测试电动机电路。 通过测量e.m.f.获得反馈以控制电机转速。 在马达（16）被关闭之后并且在延迟之后由电动机（16）产生的允许由关闭电动机引起的后退（e.m.f）在测量操作开始之前衰减（优选为零）。 在电动机关闭期间，产生的电压被积分，在该时间段内通过从主电源电压（B +）作为发电机减去测量的积分电压来建立电动机转速。 车辆电气系统内的点火开关控制电源仅操作逻辑门（40）来控制向车辆电压调节器（36）供应直接电池电力，泵电机电路及其电子控制器（16）直接连接 （B +），从而作为能量吸收器来保护电气控制系统中除了点火电路逻辑门装置之外的所有硅器件。

公开(公告)号：US5710492A

公开(公告)日：1998-01-20

申请号：US575599

申请日：1995-12-20

申请人： Hiroo Konishi ,  Masahiko Amano ,  Masahiro Watanabe ,  Masashi Nishimura

发明人： Hiroo Konishi ,  Masahiko Amano ,  Masahiro Watanabe ,  Masashi Nishimura

IPC分类号： H02J3/24 ,  H02P9/10 ,  H02P5/16 ,  G05F1/00

CPC分类号： H02P9/105 ,  H02J3/24

摘要： In a power system wherein a plurality of power plants, load systems and power transmission components are connected to each other for increasing the power transmission capacity of the power system, the power system is stabilized and power swings are suppressed, by controlling a semiconductor switch used in a power system stabilizing apparatus which is provided at the power system in an applying manner adequately corresponding to its operation characteristics and function, in accordance with a stabilizing command signal generated by using state values (for example, voltage, current, power, frequency, phase angle) of the power system, detected by detecting circuits provided in the power system.

摘要翻译： 在其中多个发电厂，负载系统和电力传输部件彼此连接以增加电力系统的输电能力的电力系统中，通过控制所使用的半导体开关，电力系统被稳定并且功率摆动被抑制 在根据通过使用状态值（例如电压，电流，功率，频率等）产生的稳定指令信号的电力系统稳定装置中，其以适合于其操作特性和功能的应用方式设置在电力系统中， 相位角），由电力系统中提供的检测电路检测。

公开(公告)号：US5453672A

公开(公告)日：1995-09-26

申请号：US216152

申请日：1994-03-21

申请人： Isaac Avitan

发明人： Isaac Avitan

IPC分类号： B60L11/18 ,  H02P5/16

CPC分类号： B60L11/1805 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7005

摘要： A regulation system for controlling a dc motor having a separately excited armature and field includes microprocessor based pulse width (duty cycle) and frequency modulation control of an armature amplifier and a field amplifier. Motor operating efficiency is optimized through microprocessor control of the field amplifier as a function of actual armature current, actual field current and desired armature speed. Sensed armature current is multiplied by a fixed optimal field constant to generate an optimal field current control signal. The optimal field current control signal is summed with a signal representative of field current required for desired armature speed less a signal representative of actual field current to generate a field current error signal. A controller receives the field current error signal and generates a pulse width modulated field current control effort signal which is applied to the field amplifier. An armature voltage controller receives an input signal which is the difference between desired armature speed and actual armature speed. The input signal is generated only when actual field current exceeds a predetermined field saturation current value. The controller generates a pulse width modulated armature control effort signal which is applied to the armature amplifier only if actual armature current is below the maximum allowable armature current.

摘要翻译： 用于控制具有单独激励的电枢和场的直流电动机的调节系统包括基于微处理器的脉冲宽度（占空比）和电枢放大器和场放大器的频率调制控制。 电机运行效率通过微处理器控制场放大器作为实际电枢电流，实际励磁电流和所需电枢速度的函数进行优化。 感测的电枢电流乘以固定的最佳场常数，以产生最佳的励磁电流控制信号。 最佳励磁电流控制信号与代表期望电枢速度所需的励磁电流的信号相加，减去表示实际励磁电流的信号以产生励磁电流误差信号。 控制器接收励磁电流误差信号并产生施加到场放大器的脉宽调制场电流控制力信号。 电枢电压控制器接收输入信号，该输入信号是所需电枢速度与实际电枢转速之差。 输入信号仅在实际场电流超过预定场饱和电流值时产生。 控制器产生一个脉宽调制电枢控制功率信号，只有当实际电枢电流低于最大允许电枢电流时，才能施加到电枢放大器。

公开(公告)号：US4801855A

公开(公告)日：1989-01-31

申请号：US63417

申请日：1987-06-18

申请人： Makoto Nohmi ,  Eiji Kozu

发明人： Makoto Nohmi ,  Eiji Kozu

IPC分类号： B60L15/28 ,  B60L3/10 ,  H02P5/16

CPC分类号： B60L3/106 ,  B60L3/10 ,  B60L2200/26 ,  B60L2220/20 ,  B60L2220/30 ,  Y02T10/7258 ,  Y10S388/902 ,  Y10S388/903 ,  Y10S388/92 ,  Y10S388/93

摘要： The magnitude of current change for the change of input voltage or for the change of speed of rotation of the shunt motor is utilized, i.e., the shunt characteristics are utilized, and the voltage applied to the motor is limited so that the armature current decreases by an amount that corresponds to the increase in the armature voltage when slipping and to the decrease in the armature voltage when sliding have taken place, thereby to obtain improved adhesion characteristics. For this purpose according to the invention, an electromotive force of the motor is calculated from a motor speed detected by a detector and from a field current of the motor, a voltage drop caused by the motor resistance and the motor current is calculated, a motor voltage is calculated by adding the thus calculated voltage drop to the electromotive force of the motor, and the voltage applied to the motor is limited depending upon the calculated motor voltage.

摘要翻译： 利用输入电压变化或分流电机转速变化的电流变化幅度，即利用分流特性，限制施加到电动机的电压，使电枢电流减小 对应于当滑动时电枢电压的增加和滑动发生时电枢电压降低的量，从而获得改善的粘附特性。 为此，根据本发明，根据由检测器检测到的电动机转速和电动机的励磁电流来计算电动机的电动势，计算由电动机电阻和电动机电流引起的电压降，电动机 通过将如此计算的电压降加到电动机的电动势上来计算电压，并且根据所计算的电动机电压来限制施加到电动机的电压。

公开(公告)号：US4734628A

公开(公告)日：1988-03-29

申请号：US936423

申请日：1986-12-01

申请人： Ronald W. Bench ,  Robert W. Peitz

发明人： Ronald W. Bench ,  Robert W. Peitz

IPC分类号： F25B1/00 ,  F04B49/06 ,  F04D27/00 ,  F24F11/02 ,  F25B49/02 ,  G05D23/19 ,  H02P6/06 ,  H02P29/00 ,  H02P5/16 ,  F25D17/00

CPC分类号： H02P6/06 ,  F04B49/065 ,  F25B49/022 ,  G05D23/1913 ,  F04B2201/1201 ,  Y10S388/93 ,  Y10S388/934

摘要： A compressor speed control arrangement with provision for selecting compressor speed in view of changes in room ambient temperature, detecting a feedback signal indicative of compressor speed, calculating actual compressor speed, developing an error signal between selected and actual compressor speeds and modifying compressor speed in view of the developed error signal.

公开(公告)号：US4662472A

公开(公告)日：1987-05-05

申请号：US654168

申请日：1984-09-24

申请人： Leslie L. Christianson ,  Ralph Alcock ,  Donell P. Froehlich ,  Mylo A. Hellickson

发明人： Leslie L. Christianson ,  Ralph Alcock ,  Donell P. Froehlich ,  Mylo A. Hellickson

IPC分类号： B60K1/00 ,  B60K17/34 ,  B60K25/06 ,  B62D53/02 ,  B60K17/30 ,  H02P5/16

CPC分类号： B60K1/00 ,  B60K17/34 ,  B60K25/06 ,  B62D53/025

摘要： An articulated battery-powered electric tractor includes front and rear frame members which are pivotally connected for movement about a substantially vertical axis. A hydraulically-actuated articulation apparatus pivots the front and rear frame members with respect to each other. Wheels support the frame members for travel over the ground. A power-take-off shaft is mounted to the front frame member and is used for driving implements. Electric energy is stored in batteries which are mounted to the rear frame member. The first electric motor is mounted to the rear frame member and is used to drive the tractor wheels. A second electric motor is mounted to the front frame member and is used to drive the power-take-off shaft and the hydraulic articulation apparatus.

摘要翻译： 铰接式电池供电的电动拖拉机包括前框架构件和后框架构件，所述前框架构件和后框架构件枢转地连接以围绕基本垂直的轴线 液压致动的铰接装置使前框架构件和后框架构件相对于彼此枢转。 车轮支撑框架构件在地面上行驶。 动力输出轴安装在前框架构件上，用于驱动工具。 电能存储在安装到后框架构件的电池中。 第一电动机安装在后框架件上，用于驱动牵引车轮。 第二电动机安装在前框架构件上，用于驱动动力输出轴和液压关节运动装置。

公开(公告)号：US4658192A

公开(公告)日：1987-04-14

申请号：US825086

申请日：1986-01-31

申请人： Jordan B. Casteel ,  David L. Lippitt ,  Allen M. Ritter

发明人： Jordan B. Casteel ,  David L. Lippitt ,  Allen M. Ritter

IPC分类号： H02P7/00 ,  H02P7/28 ,  H02P5/16

CPC分类号： H02P7/2815 ,  H02P7/05

摘要： A method for supplying the excitation to a four quadrant drive DC electric motor having a forward and reverse controllable bridge rectifier power regulators for controlling the direction of motor rotation. The motor control system is capable of operating in a continuous and discontinuous current mode of operation and includes an electronic control circuit for calculating a firing angle from desired and measured system parameters.The electronic control system includes a reversing controller for developing a current command for generating firing pulses to fire selected switching elements in the power regulators for controlling the magnitude and polarity of the excitation, and a current sensor for sensing motor current. The method provides a smooth, continuous transitioning between the forward and reverse bridge in response to a sensed requirement for reversing excitation to the motor.

摘要翻译： 用于向具有用于控制电机旋转方向的正向和反向可控桥式整流器功率调节器的四象限驱动DC电动机提供激励的方法。 电动机控制系统能够以连续和不连续的电流工作模式运行，并且包括用于根据期望和测量的系统参数计算触发角的电子控制电路。 电子控制系统包括一个反转控制器，用于产生用于产生点火脉冲的电流指令，以激发用于控制激励的幅度和极性的功率调节器中的选定开关元件，以及用于感测电动机电流的电流传感器。 该方法响应于将激励反转到电动机的感测要求，在正向和反向桥之间提供平滑，连续的过渡。

公开(公告)号：US4656402A

公开(公告)日：1987-04-07

申请号：US827722

申请日：1986-02-10

申请人： Takayoshi Nishikawa

发明人： Takayoshi Nishikawa

IPC分类号： H02P7/29 ,  H02P5/16

CPC分类号： H02P7/29 ,  Y10S388/921

摘要： In the present invention, in an electric motor control apparatus wherein a load current modulated in a pulse form and flowing in an electric motor is detected, and the load current is controlled by varying a pulse width of the load current so that an average value of the load current follows a command value, the electric control apparatus includes switching means for modulating a direct current supplied to the electric motor from a DC power supply to form the load current, a current detector for detecting the load current flowing in the electric motor, an average load current detecting means for detecting the average value of the load current by inputting from the current detector a load current at a time point after the switching means is rendered conductive and after the lapse of a predetermined time which varies in accordance with an "on" time of the switching means, and by assuming the inputted load current as the average value of the load current to be detected, an "on" time calculating means for determining the "on" time of the switching means in the next period based on the average value of the load current detected by the average load current detecting means and the command value, and a switching control section for on-off controlling the switching means in accordance with a commanded period and the "on" time calculated by the "on" time calculating means.

摘要翻译： 在本发明中，在电动机控制装置中，检测出以脉冲形式调制并在电动机中流动的负载电流，并且通过改变负载电流的脉冲宽度来控制负载电流，使得负载电流的平均值 负载电流跟随指令值，电气控制装置包括用于从直流电源调制供给电动机的直流以形成负载电流的开关装置，用于检测在电动机中流动的负载电流的电流检测器， 平均负载电流检测装置，用于通过从电流检测器输入在开关装置导通之后的时间点处的负载电流以及在经过预定时间之后，根据“ 开启“时间，并且通过将输入的负载电流作为要检测的负载电流的平均值，将”开“时间计算 用于根据由平均负载电流检测装置检测的负载电流的平均值和指令值来确定下一周期中的开关装置的“接通”时间的装置，以及用于开关控制的切换控制部分 根据指令期间的切换装置和由“开”时间计算装置计算出的“开”时间。

公开(公告)号：US4639649A

公开(公告)日：1987-01-27

申请号：US838394

申请日：1986-03-06

申请人： Kaoru Seto

发明人： Kaoru Seto

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

CPC分类号： H02P23/186 ,  Y10S388/902 ,  Y10S388/908 ,  Y10S388/911 ,  Y10S388/933

摘要： A motor control device comprises a motor speed detector, a reference signal generator and a control circuit for controlling rotation of a motor in accordance with a reference signal from the reference signal generator and a speed signal from the motor speed detector. The control circuit includes means for eliminating a phase error component during a phase synchronization pull-in period.

摘要翻译： 电动机控制装置包括电动机速度检测器，参考信号发生器和用于根据来自参考信号发生器的参考信号和来自电动机速度检测器的速度信号来控制电动机的旋转的控制电路。 控制电路包括用于在相位同步引入期间消除相位误差分量的装置。