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121. 发明授权

US06340873B2 Semiconductor integrated circuit for brushless motor drive control and brushless motor drive control apparatus 有权
公开(公告)号：US06340873B2
公开(公告)日：2002-01-22
申请号：US09893549
申请日：2001-06-29
申请人： Kunio Seki , Toshiyuki Tsunoda , Yasuhiko Kokami , Kunihiro Kawauchi
发明人： Kunio Seki , Toshiyuki Tsunoda , Yasuhiko Kokami , Kunihiro Kawauchi
IPC分类号： H02P540
CPC分类号： H02P6/22
摘要： A pulse current having such a short duration as the rotor does not react is passed through field coils of respective phases of a brushless motor in first and second, mutually opposite, directions sequentially, voltages induced, by the pulse currents in two directions at each of the field coils of the non-conducting phase are combined, the polarity of a combined voltage is detected, and a field coil pair where a current is to be passed to start the motor is determined based on the result of detection for each of field coil of the non-conducting phase.

122. 发明申请

US20010043806A1 Brushless DC motor sensor control system and method 失效
标题翻译：无刷直流电机传感器控制系统及方法
公开(公告)号：US20010043806A1
公开(公告)日：2001-11-22
申请号：US09742839
申请日：2000-12-20
发明人： Bhanuprasad V. Gorti , Richard T. Walter
IPC分类号： H02P005/00
CPC分类号： H02P6/22 , H02K3/47 , H02K29/08 , H02P6/16 , H02P6/21
摘要： A system and method for controlling a brushless DC motor (58) is provided. The motor (58) includes a rotor (72) and a stator (96) having at least three phases. The rotor (72) is magnetically coupled to and moveable by the stator (96) when the coils (94) are appropriately energized. Each of the coils (94) is characterized by a corresponding voltage waveform. No more than two position sensors (122) are provided for sensing the position of the rotor (72) during a start-up mode. Each position sensor (122) has an associated position sensor signal. The position sensors (122) are aligned to sense the rotor position such that each position sensor signal indicates a zero torque point corresponding to a phase voltage waveform. The position of the rotor (72) is sensed such that the position sensor signals indicate the start-up operating state of the motor (58). During a first ambiguous start-up state, two predetermined coils (94) are alternately energized. During a defined start-up operating state, one predetermined coil (94) is energized.
摘要翻译：提供了一种用于控制无刷直流电动机（58）的系统和方法。电机（58）包括具有至少三相的转子（72）和定子（96）。当线圈（94）被适当地通电时，转子（72）被磁耦合到定子（96）并且可被其定位。每个线圈（94）的特征在于相应的电压波形。提供不超过两个位置传感器（122）用于在启动模式期间感测转子（72）的位置。每个位置传感器（122）具有相关联的位置传感器信号。位置传感器（122）对准以感测转子位置，使得每个位置传感器信号指示对应于相电压波形的零转矩点。感测转子（72）的位置，使得位置传感器信号指示电动机（58）的起动操作状态。在第一模糊启动状态期间，两个预定线圈（94）被交替地通电。在确定的启动操作状态期间，一个预定线圈（94）通电。

123. 发明申请

US20010003412A1 Electronically commutated DC motor 失效
标题翻译：电子换向直流电动机
公开(公告)号：US20010003412A1
公开(公告)日：2001-06-14
申请号：US09728208
申请日：2000-11-30
发明人： Fritz Schmider , Stefan Lukenich
IPC分类号： H02K023/00
CPC分类号： H02P6/22 , H02K5/225
摘要： An electronically commutated motor (4) has a stator (14) with two winding phases (25, 26) which are alternatingly supplied with current during one rotor rotation through 360null cl. The motor also has a permanent-magnet rotor (28) which, when the motor (4) is currentless, assumes at least one predefined rotational position from which the rotor starts in a desired rotation direction upon excitation of a predefined winding phase. A bistable multivibrator (64), which is controlled by the voltage that is induced by the rotor in the instantaneously currentless winding phase, is provided for alternatingly switching on the two winding phases. The bistable multivibrator (64) has an electrical preferred position (92) that it assumes when the motor (4) is switched on, in order to supply power, during the switching-on operation, to the predefined winding phase and thereby to allow the rotor to start in the desired rotation direction. The motor current can be temporarily increased at startup in order to increase the torque at startup.
摘要翻译：电子换向电动机（4）具有定子（14），其具有两个绕组相（25,26），该转子在一个转子旋转通过360°c1时被交替地供给电流。电动机还具有永久磁铁转子（28），当电动机（4）无电流时，该永久磁铁转子（28）承受至少一个预定的转动位置，当预定的绕组相激励时，转子从所述旋转位置开始沿期望的旋转方向。提供由瞬时无电流绕组相中的转子感应的电压控制的双稳态多谐振荡器（64），用于交替地接通两个绕组相。双稳态多谐振荡器（64）具有电动优选位置（92），当电动机（4）接通时，电气优选位置（92），以便在接通操作期间将功率提供给预定的绕组相位，从而允许转子以期望的旋转方向开始。启动时电机电流可暂时增加，以增加启动时的转矩。

124. 发明授权

US06204617B1 Device for the detection of an angle of rotation of a brushless multi-phase d.c. motor 失效
标题翻译：用于检测无刷多相直流角的旋转装置。发动机
公开(公告)号：US06204617B1
公开(公告)日：2001-03-20
申请号：US09363351
申请日：1999-07-29
申请人： Henricus M. Van Hout , Catharinus T. Galema
发明人： Henricus M. Van Hout , Catharinus T. Galema
IPC分类号： H02K2300
CPC分类号： H02P6/185 , H02P6/22
摘要： A device which detects the angle of rotation of a rotor with respect to a stator of a brushless multi-phase d.c. motor. The rotor comprises a permanent magnet and the stator comprises a plurality of electrical windings. Electric drive signals are applied to the windings in order to drive the rotor. The device includes a drive circuit for applying pulse-shaped electric test signals to the windings while the rotor does not rotate. A measurement circuit detects flyback pulses generated by the motor in response to the test signals. A processing unit processes the durations of the detected flyback pulses in combination in order to determine the angle of rotation. On the basis of the angle of rotation thus determined, the motor can be started such that the rotor is set into rotation in a predetermined direction of rotation.
摘要翻译：检测转子相对于无刷多相直流的定子的旋转角度的装置。发动机。转子包括永磁体，并且定子包括多个电绕组。电驱动信号施加到绕组以驱动转子。该装置包括驱动电路，用于在转子不旋转的同时向绕组施加脉冲形电测试信号。测量电路响应于测试信号来检测电机产生的回扫脉冲。处理单元组合地处理检测到的回扫脉冲的持续时间，以便确定旋转角度。基于如此确定的旋转角度，可以启动电动机，使得转子以预定的旋转方向旋转。

125. 发明授权

US06177777B1 Actuation and control method and device, particularly for synchronous permanent-magnet motors 失效
标题翻译：驱动及控制方法及装置，特别适用于同步永磁电动机
公开(公告)号：US06177777B1
公开(公告)日：2001-01-23
申请号：US09230744
申请日：1999-02-01
申请人： Giovanni Piazzalunga
发明人： Giovanni Piazzalunga
IPC分类号： H02P146
CPC分类号： H02P1/465 , H02P6/22 , H02P6/26
摘要： The method and the corresponding device allow to start a synchronous motor with the chosen rotation direction, with a very high static torque, without requiring any modification of the structure of the synchronous motors currently in use, by means of an adapted electronic circuit managed by a microprocessor.
摘要翻译：该方法和相应的装置允许以非常高的静态转矩启动具有所选择的旋转方向的同步电动机，而不需要通过由适用的电子电路管理的适配的电子电路，而不需要对当前使用的同步电动机的结构进行任何修改微处理器。

126. 发明授权

US5608300A Electrical angle-detecting apparatus and driving system of synchronous motor using the same 失效
标题翻译：电动角度检测装置和同步电动机的驱动系统
公开(公告)号：US5608300A
公开(公告)日：1997-03-04
申请号：US328063
申请日：1994-10-24
申请人： Yasutomo Kawabata , Eiji Yamada , Tetsuya Miura , Yoshiaki Taga
发明人： Yasutomo Kawabata , Eiji Yamada , Tetsuya Miura , Yoshiaki Taga
IPC分类号： H02P6/20 , B60L11/18 , B60L15/02 , H02P6/16 , H02P6/18 , H02P6/22
CPC分类号： B60L11/1807 , B60L15/025 , H02P6/185 , H02P6/22 , B60L2220/14 , H02P6/182 , Y02T10/643 , Y02T10/7005
摘要： The present invention provides a system for detecting a rotational orientation or electrical angle of a rotor without any specific sensor so as to efficiently control a synchronous motor even while the rotor is at a stop or rotates at a relatively low speed. An electrical angle of a rotor (50) is determined according to a previously stored relationship between inductances of different interphases and electrical angles. At a first step, an electrical angle .phi. is calculated either in a range of 0 through .pi. or in a range of .pi. through 2.pi. by approximation. At a second step, a range where the electrical angle .phi. belongs to is specified by taking advantage of asymmetrical property of a maximum current in response to a voltage applied to each interphase. An equivocal electrical angle .theta. is then determined in a range of 0 through 2.pi.. In order to control the driving current of a three-phase synchronous motor (40) at better efficiency, a preferable system of the invention determines the electrical angle according to the above method while the rotor (50) is under inactivating condition or rotates at a speed of less than a predetermined rotating speed, and detects the electrical angle with a reverse electromotive voltage while the rotor (50) rotates at a speed of not less than the predetermined rotating speed.
摘要翻译：本发明提供了一种用于检测没有任何特定传感器的转子的旋转取向或电角度的系统，以便即使在转子停止或以相对低的速度旋转时也能有效地控制同步电动机。根据先前存储的不同相间电感和电角度的关系确定转子（50）的电角度。在第一步骤中，通过近似，在0至pi的范围内或在pi至2π的范围内计算电角度phi。在第二步骤中，通过利用响应于施加到每个相间的电压的最大电流的不对称性来指定电角度phi所属的范围。然后在0至2π的范围内确定不明确的电角度θ。为了以更高的效率来控制三相同步电动机（40）的驱动电流，本发明的优选系统根据上述方法确定电角度，同时转子（50）处于失活状态或在一个速度小于预定转速，并且当转子（50）以不小于预定旋转速度的速度旋转时，用反向电动势检测电角度。

127. 发明授权

US5254914A Position detection for a brushless DC motor without Hall effect devices using a mutual inductance detection method 失效
标题翻译：无刷直流电机的位置检测，无霍尔效应器件采用互感检测方式
公开(公告)号：US5254914A
公开(公告)日：1993-10-19
申请号：US546236
申请日：1990-06-29
申请人： John C. Dunfield , Gunter K. Heine
发明人： John C. Dunfield , Gunter K. Heine
IPC分类号： H02P6/18 , H02P6/22 , H02K29/00
CPC分类号： H02P6/22 , H02P6/185
摘要： The present method and apparatus detects the rotor position of a brushless DC motor with an accuracy of .pi./m electrical radians (where m = the number of motor phases) within one electrical period, and provides enough information to enable starting the motor in the correct direction with certainty. After starting the motor in an open loop mode of one or two steps, a closed loop mode may be switched on, using a dynamic indirect position detection as is already well known in the technology. More specifically, the position at start is determined by the injection of short current pulses in different motor phases, each phase or pair of phases being energized first by a pulse of one polarity and of the opposite polarity. The sign of the time difference between the decay times of the induced voltages in the un-energized phase is detected. By performing a succession of these tests on different phases or pairs of phases of the standing motor, a table of results is established which clearly defines the position of the rotor relative to the motor phases. The same table then defines what polarity currents should be applied to each phase to reliably and certainly start the motor in the proper direction.
摘要翻译：本方法和装置在一个电周期内以pi / m电弧度（其中m =电动机相位数）的精度检测无刷直流电动机的转子位置，并提供足够的信息，以使电动机起动正确方向确定。在以一个或两个步骤的开环模式启动电动机之后，可以使用如本技术中已知的动态间接位置检测来接通闭环模式。更具体地说，启动时的位置是通过在不同的电动机相中的短电流脉冲的注入来确定的，每一相或一对相首先由一个极性的脉冲和相反的极性激发。检测未通电阶段的感应电压的衰减时间之间的时间差的符号。通过对立式电动机的不同相或相对相继进行这些测试，建立了一个结果表，其中明确了转子相对于电动机相的位置。那么同一个表然后定义了什么极性电流应该施加到每个相位可靠地和肯定地启动电机在正确的方向。

128. 发明授权

US5001405A Position detection for a brushless DC motor 失效
标题翻译：无刷直流电机的位置检测
公开(公告)号：US5001405A
公开(公告)日：1991-03-19
申请号：US413311
申请日：1989-09-27
申请人： Alain M. Cassat
发明人： Alain M. Cassat
IPC分类号： H02K29/08 , H02K11/00 , H02P6/16 , H02P6/18 , H02P6/22
CPC分类号： H02P6/22 , H02P6/185
摘要： The present method and apparatus detects the position with an accuracy of .pi./m electrical radians (where m=the number of motor phases) within one electrical period, and provides enough information to be able to start in the correct direction with certainty. After starting the motor in an open loop mode of one or two steps, starting the rotor in the correct direction, the closed loop mode may be switched on, using a dynamic indirect position detection as is already well known in the technology.More specifically, the position at start is determined by the injection of short current pulses in different motor phases, each phase or pair of phases being energized first by a pulse of one polarity and of the opposite polarity. The sign of the difference between the induced voltages is detected. By performing a succession of these tests on different phases or pairs of phases of the standing motor, a table of results is established which clearly defines the position of the rotor relative to the motor phases. The same table then defines when polarity currents should be applied to each phase to reliably and certainly start the motor in the proper direction.

129. 发明授权

US4922169A Method and apparatus for driving a brushless motor 失效
标题翻译：用于驱动无刷电动机的方法和装置
公开(公告)号：US4922169A
公开(公告)日：1990-05-01
申请号：US253245
申请日：1988-10-04
申请人： John J. Freeman
发明人： John J. Freeman
IPC分类号： H02P6/18 , H02P6/22
CPC分类号： H02P6/182 , H02P6/22
摘要： An n-phase, m-pole (wherein n and m are integers) brushless motor is driven without use of physical rotary position detectors, such as Hall elements or the like. An harmonic component of back emf induced in the phases of the motor is detected and used to generate phase energizing signals (such as in response to zero crossings of the detected harmonic component) which, in turn, energize selected phases of the motor. Drive current is supplied to those phases which are energized by the phase energizing signal in predetermined sequence.

130. 发明授权

US4748387A DC brushless motor driving method and apparatus for accurately controlling starting position of rotor 失效
标题翻译：用于精确控制转子起动位置的直流无刷电机驱动方法和装置
公开(公告)号：US4748387A
公开(公告)日：1988-05-31
申请号：US75034
申请日：1987-07-17
申请人： Jiro Tanuma , Takao Uchida
发明人： Jiro Tanuma , Takao Uchida
IPC分类号： H02P6/20 , B41J33/34 , H02P6/18 , H02P6/22 , H02K29/14 , H02P9/00
CPC分类号： H02P6/185 , H02P6/22
摘要： A driving apparatus for controlling the drive of a direct current (DC) brushless motor including a stator having a plurality of armature coils which are provided on a generally circular stator yoke, and a rotatable rotor in which a disk-like magnet having N and S poles arranged alternately in a circumferential direction is provided on a generally circular rotor yoke to face the armature coils, includes a speed sensor for producing outputs responsive to a rotation speed of the rotor, a counter for counting the pulses which are produced by the speed sensors, a control circuit responsive to the speed sensors and counter for controlling the current applied to the armature coils in a predetermined sequence to thereby rotate the rotor, and a mechanism for cancelling a load acting on the rotor. The control circuit, at a start-up of the motor, switches the current applied to the armature coils to excite the armature coils in several different phases to thereby locate the rotor at a starting angular position, in the event when the rotor is located at the starting angular position, cancels a load acting on the rotor, at least before a last one of the phases is excited, subsequently controls rotation drive by counting output pulses of the speed sensor to determine an angular position of the rotor, and controls a rotation direction of the rotor on the basis of output pulses of the speed sensor and on a resulting count of the pulses. Also provided is a driving method for a brushless DC motor for effecting such a control.
摘要翻译：一种用于控制直流（DC）无刷电动机的驱动的驱动装置，其包括具有设置在大致圆形的定子磁轭上的多个电枢线圈的定子和可旋转的转子，其中具有N和S的盘状磁体设置在圆周方向上交替布置的磁极设置在大致圆形的转子磁轭上以面对电枢线圈，包括用于产生响应于转子的转速的输出的速度传感器，用于对由速度传感器产生的脉冲进行计数的计数器，响应于速度传感器和计数器的控制电路，用于以预定顺序控制施加到电枢线圈的电流，从而使转子旋转，以及用于抵消作用在转子上的负载的机构。控制电路在马达启动时切换施加于电枢线圈的电流，以在几个不同的相位激发电枢线圈，从而将转子定位在起始角位置，当转子位于至少在最后一个相被激励之前，启动角位置抵消作用在转子上的负载，随后通过计算速度传感器的输出脉冲来控制旋转驱动以确定转子的角度位置，并且控制旋转基于速度传感器的输出脉冲的转子方向和脉冲的计数。还提供了用于实现这种控制的无刷直流电动机的驱动方法。

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