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公开(公告)号：EP2351202A1
公开(公告)日：2011-08-03
申请号：EP09744412.9
申请日：2009-11-04
申请人： ABB Research Ltd.
摘要： For identifying the machine type of an alternating current machine, a direct current is first applied to the stator for aligning the d-axis of the rotor and the magnetic field direction of the stator. Secondly, a direct current is applied to the stator at a current angle which causes the rotors of a permanent magnet machine and a synchronous reluctance machine to exert torque in different directions. The torque direction of the rotor is detected and the machine type is identified based on the torque direction information. The machine type is recognized as a permanent magnet machine or a synchronous reluctance machine depending on the torque direction. If no torque is detected, then the machine type is recognized as an induction machine.
摘要翻译： 为了识别交流电机的机器类型，首先将直流电流施加到定子以使转子的d轴和定子的磁场方向对准。 其次，以使得永磁体机和同步磁阻电机的转子在不同方向施加转矩的电流角度对定子施加直流电。 检测转子的转矩方向，并根据扭矩方向信息识别机器类型。 机器类型根据转矩方向被识别为永磁机或同步磁阻电机。 如果没有检测到扭矩，则机器类型被识别为感应电机。
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52.发明公开
公开(公告)号：EP2278701A1
公开(公告)日：2011-01-26
申请号：EP10183413.3
申请日：2008-06-25
摘要： A semiconductor device for driving an electric motor is provided. The semiconductor device includes: an original drive signal generator that generates an original drive signal, based on a positional signal which indicates a relative position of a first drive member and a second drive member of the electric motor; an excitation ratio signal generator that generates an excitation ratio signal which indicates a ratio of excitation interval to non-excitation interval of coils of the electric motor, based on a speed signal indicating a relative speed of the first drive member and the second drive member of the electric motor; an excitation interval signal generator that generates a binary excitation interval signal which specifies the excitation interval and the non-excitation interval of the coils of the electric motor, based on the positional signal and the excitation ratio signal; and a mask circuit that generates a drive signal for driving the electric motor by masking part of the original drive signal based on the excitation interval signal.
摘要翻译： 提供一种用于驱动电动机的半导体装置。 该半导体器件包括：原始驱动信号发生器，其基于指示电动机的第一驱动部件和第二驱动部件的相对位置的位置信号来生成原始驱动信号; 励磁比信号发生器，其基于表示第一驱动部件和第二驱动部件的相对速度的速度信号，生成表示电动机的线圈的励磁间隔与非励磁间隔的比的励磁比信号 电动机; 激励间隔信号发生器，其基于所述位置信号和所述励磁比信号，生成指定所述电动机的线圈的励磁间隔和非励磁间隔的二进制激励间隔信号; 以及掩模电路，其通过基于激励间隔信号掩蔽原始驱动信号的一部分来产生用于驱动电动机的驱动信号。
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公开(公告)号：EP2269298A1
公开(公告)日：2011-01-05
申请号：EP09731703.6
申请日：2009-01-30
申请人： Woodward HRT, Inc.
CPC分类号： H02P31/00 , F16H25/2015 , H02P6/22 , H02P6/24 , Y10T74/18576
摘要： The actuator has a shaft having a starting resistance portion, and a low resistance portion. The actuator has a motor configured to rotate the shaft, the motor outputting a current feedback signal to indicate current exiting the motor. The actuator has a interference portion disposed on a fixed member adjacent the shaft, the interference portion configured to facilitate a resistance to shaft rotation when the shaft rotates, the resistance to shaft rotation causing a magnitude of the current signal to be greater when the starting resistance portion passes in front of the interference portion than when the low resistance portion passes in front of the interference portion.
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54.发明授权VERFAHREN ZUM STARTEN EINES SENSORLOSEN, ELEKTRONISCH KOMMUTIERBAREN GLEICHSTROMMOTORS 有权启动传感器地段方法，电子换向直流电机
公开(公告)号：EP1728316B1
公开(公告)日：2010-08-11
申请号：EP05707940.2
申请日：2005-02-04
申请人： ROBERT BOSCH GMBH
发明人： BOSCH, Volker , WIRNITZER, Bernd
CPC分类号： H02P6/185 , H02P6/182 , H02P6/22 , H02P29/0241
摘要： The invention relates to a method for starting a sensorless, electronically commutatable direct current motor comprising a rotor (24) that is excited by permanent magnets, the stator (22) having a winding that is in particular three-phase (U, V, W). Said winding can be supplied with a regulated current from a direct current source starting from a stationary state. To achieve this, the control unit (54) that is used first determines the position of the rotor (24) in its stationary state at the beginning of the start-up operation in a range lying below the minimum value of the rotor speed and then generates a regulated start-up supply of current to the phase windings (U, V, W) of the stator (22) by means of the commutator unit (14). Once the predetermined minimum value of the rotor speed has been reached, the control unit (54) receives position signals (∫U3) that are directly derived from the third harmonic wave and/or from additional uneven-numbered harmonic waves of the phase voltages as rotor position signals for a self-commutation of the motor and delivers control signals from said position signals to the commutator unit (14) in order to supply the phase windings (U, V, W) with current during normal operation.
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公开(公告)号：EP2002939A9
公开(公告)日：2009-05-20
申请号：EP07741017.3
申请日：2007-04-04
申请人： Max Co., Ltd.
发明人： KATOU, Kouji, c/o MAX CO., LTD., , TAKEUCHI, Kazuya, c/o MAX CO., LTD., , KUSAKARI, Ichiro, c/o MAX CO., LTD., , ITAGAKI, Osamu, c/o MAX CO., LTD., , NAGAOKA, Takahiro, c/o MAX CO., LTD.,
CPC分类号： H02P6/22 , B25F5/02 , E04G21/122 , E04G21/123 , Y10S388/937
摘要： An electric power tool "A" operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on the motor 4 so as to be advanced by an electrical angle of 30°±θ°from an intermediate position between respective stator teeth 16 in a direction of the normal rotation of the rotor 15. A control part 20 for controlling the rotation of the motor 4 controls a driving signal of the motor 4 based on the results of detection by the sensors H. Moreover, the control part 20 selects a detection signal of the sensors H so that relation between the rotor 15 and the detection signal of the sensors H is equivalent in either of the normal rotation and the reverse rotation of the rotor 15.
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56.发明公开Enhanced floating reference frame controller for sensorless control of synchronous machines 审中-公开改进了与angleichbarem控制器坐标系的同步机的无传感器控制
公开(公告)号：EP1742347A3
公开(公告)日：2009-04-01
申请号：EP06250385.9
申请日：2006-01-24
摘要： A method and system for controlling a power converter coupled to a polyphase power line. The method includes measuring at least two motor phase currents, obtaining a floating reference frame for the current Park vector, adjusting the reference frame based on an estimated rotor speed, and controlling the power converter via the floating reference frame to reinitiate power to a motor while a rotor is still moving.
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57.发明授权
公开(公告)号：EP1851847B1
公开(公告)日：2009-03-04
申请号：EP06704548.4
申请日：2006-01-20
发明人： FÖLL, Claus , JESKE, Frank , KUNER, Arnold , LÖFFLER, Jens
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公开(公告)号：EP2002939A2
公开(公告)日：2008-12-17
申请号：EP07741017.3
申请日：2007-04-04
申请人： Max Co., Ltd.
发明人： KATOU, Kouji, c/o MAX CO., LTD., , TAKEUCHI, Kazuya, c/o MAX CO., LTD., , KUSAKARI, Ichiro, c/o MAX CO., LTD., , ITAGAKI, Osamu, c/o MAX CO., LTD., , NAGAOKA, Takahiro, c/o MAX CO., LTD.,
CPC分类号： H02P6/22 , B25F5/02 , E04G21/122 , E04G21/123 , Y10S388/937
摘要： An electric power tool "A" operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on the motor 4 so as to be advanced by an electrical angle of 30°±θ°from an intermediate position between respective stator teeth 16 in a direction of the normal rotation of the rotor 15. A control part 20 for controlling the rotation of the motor 4 controls a driving signal of the motor 4 based on the results of detection by the sensors H. Moreover, the control part 20 selects a detection signal of the sensors H so that relation between the rotor 15 and the detection signal of the sensors H is equivalent in either of the normal rotation and the reverse rotation of the rotor 15.
摘要翻译： 电动工具“A”通过在正常方向和相反方向上反复旋转一次或多次来操作电动机4来操作工作部件5。 电动机4包括无刷电动机。 用于检测转子15的位置的传感器H设置在电动机4上，从而在转子的正转方向上相对于各个定子齿16之间的中间位置前进30°±¸°的电角度 用于控制电动机4的旋转的控制部20基于传感器H的检测结果来控制电动机4的驱动信号。此外，控制部20选择传感器H的检测信号，使得关系 转子15与传感器H的检测信号之间在转子15的正常旋转和反向旋转中的任意一个相当。
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公开(公告)号：EP1841056A8
公开(公告)日：2008-04-09
申请号：EP07005814.4
申请日：2007-03-21
申请人： JTEKT Corporation
摘要： The motor controller (5) drives an electric motor (3) including a rotor (50) as a field magnet and stator coils (51, 52, 53) of U-phase, V-phase and W-phase. The motor controller (5) includes an exploration voltage application unit (30) for applying an exploration voltage to the stator coils (51, 52, 53) of U-phase, V-phase and W-phase such that a voltage vector expressed by the voltage applied to the stator coils (51, 52, 53) rotates in a predetermined cycle with maintaining a constant magnitude, an electric current detection unit (19, 24) for detecting an electric current flowing through the electric motor (3) during the period in which the exploration voltage is applied by the exploration voltage application unit (30), and a rotor rotation angle estimation unit (25, 26) for estimating a rotation angle of the rotor (50) based on a phase of the voltage vector when a magnitude of the electric current detected by the electric current detection unit (19, 24) takes a local maximum value.
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60.发明公开
公开(公告)号：EP1775074A1
公开(公告)日：2007-04-18
申请号：EP05765375.0
申请日：2005-06-29
申请人： Totsu, Katsuyuki
发明人： Totsu, Katsuyuki
CPC分类号： H02P6/22 , B25B21/00 , B25B23/14 , B25B23/147 , H02P6/24
摘要： To provide a rotary tool driven by a brushless motor with which constant torque tightening work for screws or the like can always be performed properly and efficiently, in which overall downsizing and improved torque control precision enhancement can easily be achieved, and with which it is possible to eliminate occurrences of switch contact-induced sparking and wear and of the damage imparted to the peripheral electronic equipment and electronic circuitry as occurred in drive switches or torque detection mechanisms that use a conventional mechanical switch mechanism, so that the constituting parts are able to have a reduced size and an extended life.
First Hall elements 31a and 31b for respectively detecting operations of the respective lever operation mechanism 20 and push operation mechanism 18, both being the drive switch, are provided, and a second Hall element 32 for detecting clutch actions is also provided; and a control means 50 is configured so that a DC brushless motor 12 is rotationally driven based on an operation signal provided by the first Hall elements 31 a and 31 b and is stopped based on an action signal provided by the second Hall element 32.摘要翻译： 为了提供一种由无刷电动机驱动的旋转工具，通过该旋转工具可以始终如常地正确且有效地执行用于螺钉等的恒定扭矩紧固作业，其中可以容易地实现整体小型化和改进的转矩控制精度提高，并且可以利用该工具 以消除开关接触引起的火花和磨损以及由于使用传统的机械开关机构而在驱动开关或转矩检测机构中发生的对外围电子设备和电子电路的损害，使得构成部件能够具有 尺寸缩小，寿命延长。 设置用于分别检测作为驱动开关的各个杠杆操作机构20和推动操作机构18的操作的第一霍尔元件31a和31b，并且还提供用于检测离合器动作的第二霍尔元件32; 并且控制装置50被构造成使得基于由第一霍尔元件31a和31b提供的操作信号旋转地驱动DC无刷电动机12，并且基于由第二霍尔元件32提供的动作信号而停止。
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