公开(公告)号：US5023527A

公开(公告)日：1991-06-11

申请号：US515317

申请日：1990-04-18

申请人： David M. Erdman ,  James A. Beatty ,  Amritlal H. Patel

发明人： David M. Erdman ,  James A. Beatty ,  Amritlal H. Patel

IPC分类号： B60H1/32 ,  F23N3/08 ,  F25B49/02 ,  G05D23/19 ,  H02K29/06 ,  H02K29/10 ,  H02P6/08 ,  H02P6/14 ,  H02P6/16 ,  H02P6/18

CPC分类号： F23N3/082 ,  F25B49/025 ,  G05D23/19 ,  H02K29/06 ,  H02K29/10 ,  H02P6/085 ,  H02P6/14 ,  H02P6/16 ,  H02P6/182 ,  F23N2033/04 ,  F25B2600/021

摘要： Control circuit for an electronically commutated motor which has a rotatable assembly and further has a stationary assembly with a plurality of winding stages having terminals for energization, and switches for applying a voltage to one or more of the terminals of the winding stages at a time and commutating the winding stages in a preselected sequence to rotate the rotatable assembly. A preselected sequence of winding stages are left correspondingly unpowered so that a plurality of the winding stages are unpowered at some time. The winding stages generate back emf signals and also couple electrical signals from each energized winding stage to the unpowered winding stages which signals can interfere with detection of back emf for position sensing purposes. The control circuit includes a first circuit for selecting at least two of the unpowered winding stages which have electrical signals coupled to them that have a predetermined relationship in polarity and magnitude. A second circuit produces an electrical output from the voltages on the winding stage terminals of the winding stages selected, so that the electrical signals coupled from each energized winding stage are substantially canceled when they have the predetermined relationship while the back emf is preserved for position sensing substantially free from interference from the electrical signals that are coupled from each energized winding stage to the unpowered winding stages. Other control circuits, electronically commutated motor systems and methods of control and operation are also disclosed.

摘要翻译： 一种用于电子换向电动机的控制电路，其具有可旋转的组件，并且还具有具有多个具有用于通电的端子的绕组的静止组件，以及用于一次向一个或多个绕组的端子施加电压的开关，以及 以预选顺序对绕组段进行换向以旋转可旋转组件。 卷绕级的预选序列相应地没有动力，使得多个绕组段在某些时间没有动力。 绕组级产生反电动势信号，并且将来自每个带电绕组级的电信号耦合到无动力绕组级，这些信号可能干扰用于位置感测目的的反电动势的检测。 控制电路包括用于选择具有与其相连的电信号的至少两个未供电的绕组级的第一电路，其具有极性和大小的预定关系。 第二电路从所选择的绕组级的绕组级端子上的电压产生电输出，使得当它们具有预定关系时，从每个通电的绕组段耦合的电信号被基本上消除，同时保留用于位置感测的后电动势 基本上不受来自从每个带电绕组段耦合到无动力绕组级的电信号的干扰。 还公开了其他控制电路，电子换向电机系统以及控制和操作方法。

公开(公告)号：US4513230A

公开(公告)日：1985-04-23

申请号：US400206

申请日：1982-07-21

申请人： David M. Erdman

发明人： David M. Erdman

IPC分类号： H02P6/08 ,  H02P1/18

CPC分类号： H02P6/085 ,  F25B2600/021

摘要： A laundering apparatus includes a laundry machine having a spin tub and an agitator, and an electronically commutated motor is drivingly associated with the tub and agitator through a transmission. A system controls the energization of the electronically commutated motor to effect the laundering operations of the tub and the agitator in the laundry machine.A method of operating a laundry machine, a control system for an electronically commutated motor, and a method of operating an electronically commutated motor are also disclosed.

摘要翻译： 洗衣设备包括具有旋转桶和搅拌器的洗衣机，并且电子换向电动机通过变速器与桶和搅拌器驱动相关联。 系统控制电子换向马达的通电，以实现洗衣机中的洗涤桶和搅拌器的洗涤操作。 还公开了一种操作洗衣机的方法，用于电子换向电动机的控制系统以及操作电子换向电动机的方法。

公开(公告)号：US4015182A

公开(公告)日：1977-03-29

申请号：US482407

申请日：1974-06-24

申请人： David M. Erdman

发明人： David M. Erdman

IPC分类号： B60H1/32 ,  F23N3/08 ,  F25B49/02 ,  G05D23/19 ,  H02K29/00

CPC分类号： F23N3/082 ,  F25B49/025 ,  G05D23/19 ,  F23N2033/04 ,  F25B2600/021 ,  Y10S388/934

摘要： A refrigeration system is disclosed as comprising a compressor driven by an electronically commutated D.C. motor for circulating a suitable coolant through a condenser and then an evaporator disposed within a chamber or compartment to be cooled. The system is particularly adapted for use as an air conditioning system for automobiles and recreational vehicles, as portable refrigerating apparatus in recreational vehicles, and refrigerating apparatus for trucks or other transport vehicles. In such applications, a power source such as a battery, alternator, or generator (or rectified alternating current) serves to energize the motor. The motor may be operated by an electronic commutating circuit responsive to the position of the rotor of the D.C. motor for efficiently commutating the energizing signals applied to the stator windings of the brushless D.C. motor. The level of energization is set in accordance with the desired temperature to be maintained by the refrigeration system, whereby the D.C. motor is energized to drive the compressor at a selected speed corresponding to the desired temperature. The degree of stator energization may be controlled by: 1) regulating the output of the power source, or 2) regulating directly the commutating circuit to control the current signals applied to the stator windings.

摘要翻译： 公开了一种制冷系统，其包括由电子换向直流电动机驱动的压缩机，用于使合适的冷却剂循环通过冷凝器，然后设置在要冷却的室或室内的蒸发器。 该系统特别适合用作汽车和休闲车辆的空调系统，作为娱乐车辆中的便携式制冷设备，以及用于卡车或其他运输车辆的冷藏设备。 在这种应用中，诸如电池，交流发电机或发电机（或整流交流电）的电源用于对电动机通电。 响应于直流电动机的转子的位置，可以通过电子换向电路来操作电动机，以有效地换向施加到无刷直流电动机的定子绕组的激励信号。 根据由制冷系统保持的期望温度来设定通电水平，由此直流电动机通电，以对应于期望温度的选定速度驱动压缩机。 定子通电的程度可以通过以下方式来控制：1）调节电源的输出，或2）直接调节整流电路，以控制施加到定子绕组的电流信号。

公开(公告)号：US4005347A

公开(公告)日：1977-01-25

申请号：US482409

申请日：1974-06-24

申请人： David M. Erdman

发明人： David M. Erdman

IPC分类号： F23N3/08 ,  H02K29/10 ,  H02P6/16 ,  H02K29/00

CPC分类号： F23N3/082 ,  H02K29/10 ,  H02P6/16 ,  F23N2033/04 ,  F25B2600/021 ,  H02P2209/07

摘要： A brushless DC motor is constructed with photosensitive devices for detecting rotor shaft position. Arcuate permanent magnets on the rotor provide a DC flux field while distributed stator windings, each spanning a fixed number of slots in the armature assembly, provide mutually perpendicular magnetic fields. A logic circuit comprising NOR gates and transistor switches and drivers activated in response to signals from the shaft position sensors are utilized to control current switching in the stator windings of the motor. A light interrupting shutter mounted to the rotor cooperates with the light sensitive devices which are mounted to a supporting bracket fixed to the stator assembly in a manner to selectively preset advancement of commutation of the stator windings.

摘要翻译： 无刷直流电动机由感光装置构成，用于检测转子轴的位置。 转子上的弧形永磁体提供DC通量磁场，而分布式定子绕组（每个跨接在电枢组件中的固定数量的槽）提供相互垂直的磁场。 包括NOR门和晶体管开关的逻辑电路和响应于来自轴位置传感器的信号而激活的驱动器被用于控制电动机的定子绕组中的电流切换。 安装到转子上的遮光快门与被安装到固定到定子组件的支撑支架的光敏装置协作，以便选择性地预设定子绕组的换向。

公开(公告)号：US20100251539A1

公开(公告)日：2010-10-07

申请号：US12817018

申请日：2010-06-16

申请人： Daniel Gizaw ,  David M. Erdman ,  Joseph E. Miller ,  Girma Desta

发明人： Daniel Gizaw ,  David M. Erdman ,  Joseph E. Miller ,  Girma Desta

IPC分类号： H02K15/03

CPC分类号： H02K21/22 ,  H02K1/16 ,  H02K1/2786 ,  H02K7/1823 ,  H02K7/183 ,  H02K7/1838 ,  H02K15/03 ,  H02K29/03 ,  H02K2201/06 ,  H02K2213/12 ,  Y10T29/49009 ,  Y10T29/49012

摘要： A method for assembling a direct drive generator assembly includes the steps of placing a rotor over a stator, leaving a gap therebetween. A magnetic hub is assembled using adjacent columns of magnets having opposed orientation, and placed in the air gap. Application of an input torque to generate cogging torque in first direction that offsets coggery torque in second direction.

摘要翻译： 用于组装直接驱动发电机组件的方法包括以下步骤：将转子放置在定子上，在它们之间留有间隙。 使用具有相反取向的相邻的磁体列组装磁性集线器，并将其放置在气隙中。 施加输入扭矩以在第一方向产生齿槽转矩，以抵消第二方向上的绞合扭矩。

公开(公告)号：US06483265B1

公开(公告)日：2002-11-19

申请号：US09576851

申请日：2000-05-23

申请人： Robert K. Hollenbeck ,  David M. Erdman

发明人： Robert K. Hollenbeck ,  David M. Erdman

IPC分类号： B23Q3500

CPC分类号： H02P6/10 ,  G05B19/404 ,  G05B2219/41122 ,  G05B2219/41144 ,  G05B2219/42237 ,  Y10S388/904

摘要： Methods and apparatus for minimizing electrical machine vibration are described. In an exemplary embodiment of the method, power is applied to the motor under microprocessor control such that a pulse modulated current profile is applied to the motor which in turn controls the amount of torque generated by the motor. By adjusting current profiles, torque generation is controlled, and vibration and noise are eliminated.

摘要翻译： 描述了最小化电机振动的方法和装置。 在该方法的示例性实施例中，在微处理器控制下向电动机施加功率，使得脉冲调制电流分布被施加到电动机，该电动机进而控制由电动机产生的转矩量。 通过调整电流曲线，可以控制扭矩产生，消除振动和噪声。

公开(公告)号：US06378849B1

公开(公告)日：2002-04-30

申请号：US09681469

申请日：2001-04-13

申请人： David M. Erdman ,  Subhash M. Brahmavar ,  David L. Bailey ,  Harold B. Harms

发明人： David M. Erdman ,  Subhash M. Brahmavar ,  David L. Bailey ,  Harold B. Harms

IPC分类号： F16F1300

CPC分类号： F16F15/073 ,  F16F15/085

摘要： A method for facilitating the reduction of transmitted motor noise using a mounting system in a frame. The mounting system includes a motor assembly having an end bell, a mounting bracket including a brace, a plurality of attachment openings, a plurality of leaf springs attached to the brace and an anchor device attached to each leaf spring. Each anchor device includes a fastener opening and a grommet. The leaf springs and grommets are configured to filter and damp noise transmitted from the motor to the frame.

摘要翻译： 一种便于使用框架中的安装系统来减少传输的电动机噪声的方法。 安装系统包括具有端部钟罩的电动机组件，包括支架的安装支架，多个附接开口，附接到支架的多个板簧和连接到每个板簧的锚定装置。 每个锚定装置包括紧固件开口和索环。 板簧和索环被配置为过滤和阻尼从电机传递到框架的噪声。

公开(公告)号：US5986419A

公开(公告)日：1999-11-16

申请号：US48946

申请日：1998-03-26

申请人： William R. Archer ,  Roger C. Becerra ,  Brian L. Beifus ,  Mark A. Brattoli ,  David M. Erdman ,  Thomas M. Jahns ,  Gerald B. Kliman ,  Wen Liang Soong ,  Charles M. Stephens ,  Eric R. Benedict ,  Michael W. Degner

发明人： William R. Archer ,  Roger C. Becerra ,  Brian L. Beifus ,  Mark A. Brattoli ,  David M. Erdman ,  Thomas M. Jahns ,  Gerald B. Kliman ,  Wen Liang Soong ,  Charles M. Stephens ,  Eric R. Benedict ,  Michael W. Degner

IPC分类号： H02K29/12 ,  H02P6/00 ,  H02P6/16 ,  H02P6/22 ,  H02K23/00

CPC分类号： H02P6/22 ,  H02K29/12 ,  H02P6/15 ,  H02P6/16 ,  H02P6/26

摘要： A single phase permanent magnet motor includes a rotor, a stator, and a quadrature axis winding positioned out-of-phase from a main winding of the stator for generating an output signal representative of rotor angular position. An integrator can be coupled to the quadrature axis winding for phase retarding the output signal, and a comparator can be coupled to the integrator for detecting zero crossings of the phase retarded output signal to provide a commutation signal. The quadrature axis winding can be positioned about ninety electrical degrees out-of-phase from the main winding of the stator, and the integrator can be adapted to phase retard the output signal by a number of degrees which decreases as a speed of the motor increases. At low speeds the phase retard is preferably at about ninety degrees so that the phase retarded signal becomes in-phase with the main stator winding back EMF voltage. The motor may further include a rectifier coupled to the quadrature axis winding for rectifying the output signal, and a lowpass filter for filtering the rectified output signal to provide a signal proportional to velocity. Also the single phase motor is commutated for maximum torque production.

摘要翻译： 单相永磁电动机包括转子，定子和与定子的主绕组不同相位置的正交绕组，用于产生表示转子角位置的输出信号。 积分器可以耦合到正交轴线圈，用于相位延迟输出信号，并且比较器可以耦合到积分器，用于检测相位延迟输出信号的过零点以提供换向信号。 正交绕组可以定位在与定子的主绕组相差大约九十度的位置上，并且积分器可以适合于将输出信号相位延迟多少度，随着电机速度的增加而减小 。 在低速时，相位延迟优选地在大约九十度，使得相位延迟信号与主定子绕组反电动势电压同相。 电动机还可以包括耦合到正交轴线圈的整流器，用于整流输出信号;以及低通滤波器，用于对整流的输出信号进行滤波以提供与速度成比例的信号。 单相电动机也可以进行换向，以实现最大扭矩产生。

公开(公告)号：US5657638A

公开(公告)日：1997-08-19

申请号：US538115

申请日：1995-10-02

申请人： David M. Erdman ,  Warren F. Bessler

发明人： David M. Erdman ,  Warren F. Bessler

IPC分类号： F25D17/06

CPC分类号： F25D17/062 ,  F25B2600/111 ,  F25B2600/112

摘要： An apparatus for driving a fan as part of a refrigerator is disclosed. The refrigerator has a compartment, a compressor, an evaporator and a condenser. A temperature sensor is positioned in association with the compartment and outputs a sensed temperature signal as a function of the temperature in the compartment. The apparatus includes a reference circuit which provides a desired temperature signal representative of a desired temperature. A comparator compares the desired temperature signal and the sensed temperature signal and generates a cool signal when the compartment temperature is above the desired temperature. A timer times out an elapsed period of time commencing when the cool signal is generated. A motor includes a rotatable assembly in driving relation to the fan. A control circuit controls operation of the motor as a function of the sensed temperature signal and the elapsed period. Related apparatus and methods are also disclosed.

摘要翻译： 公开了一种用于驱动作为冰箱的一部分的风扇的装置。 冰箱具有隔室，压缩机，蒸发器和冷凝器。 温度传感器与隔室相关联地定位，并输出感测温度信号作为隔室中的温度的函数。 该装置包括提供表示期望温度的期望温度信号的参考电路。 比较器比较所需的温度信号和检测到的温度信号，并且当室温度高于所需温度时产生冷信号。 一个定时器超过在产生冷信号时开始经过的时间段。 电动机包括与风扇驱动关系的可旋转组件。 控制电路根据感测的温度信号和经过的周期来控制电动机的操作。 还公开了相关的装置和方法。

公开(公告)号：USRE35124E

公开(公告)日：1995-12-19

申请号：US156297

申请日：1993-11-23

申请人： David M. Erdman ,  Mark A. Brattoli

发明人： David M. Erdman ,  Mark A. Brattoli

IPC分类号： F23N3/08 ,  H02P6/08 ,  H02P7/29

CPC分类号： H02P6/085 ,  F23N3/082 ,  F23N2033/04 ,  F25B2600/021

摘要： A control system and method for an electronically commutated motor having a stationary assembly with a plurality of winding stages for carrying a motor current in response to application of a voltage having a magnitude subject to variations, the motor further having a rotatable assembly. The control system is adapted to receive control pulses having a duty cycle which is a function of a desired operating torque or speed for the motor. The control system and method are responsive to the motor current for generating a pluse width modulated (PWM) series of pulses having a pulse repetition rate having a duty cycle which is a function of the duty cycle of the control pulses. The PWM series of pulses are supplied to the commutating circuit as a pulsed signal whereby the operating torque or speed of the motor is a function of the duty cycle of the control pulses and is substantially independent of variations in the magnitude of the applied voltage. The control system may be part of a draft inducer apparatus or method for use with a combustion chamber having an exhaust outlet including a fan for moving air through the exhaust outlet and thereby to induce a draft in the combustion chamber. A pressure sensor connected to the motor control apparatus may be located within the exhaust outlet.

摘要翻译： 一种用于电子换向电动机的控制系统和方法，具有具有多个绕组段的固定组件，用于响应于施加具有变化幅度的电压而承载电动机电流，所述电动机还具有可旋转组件。 控制系统适于接收具有占空比的控制脉冲，该占空比是电动机的期望的操作转矩或速度的函数。 控制系统和方法响应于电动机电流，用于产生具有占空比的脉冲重复频率的脉冲宽度调制（PWM）脉冲序列，该占空比是控制脉冲的占空比的函数。 PWM脉冲序列作为脉冲信号提供给换向电路，由此马达的运行转矩或速度是控制脉冲的占空比的函数，并且基本上与所施加的电压的幅度的变化无关。 控制系统可以是与具有排气出口的燃烧室一起使用的牵引式诱导装置或方法的一部分，所述排气出口包括用于通过排气出口移动空气的风扇，从而在燃烧室中引起通风。 连接到马达控制装置的压力传感器可以位于排气出口内。