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101. 发明申请

US20080218107A1 Motor Drive Unit and Electric Apparatus Having a Motor 有权
标题翻译：电机驱动单元和电机
公开(公告)号：US20080218107A1
公开(公告)日：2008-09-11
申请号：US10597640
申请日：2005-01-27
申请人： Yoshito Otaguro
发明人： Yoshito Otaguro
IPC分类号： H02P6/06
CPC分类号： H02P6/182 , H02P6/22
摘要： A motor drive unit capable of detecting the position of a stationary rotor of any type of sensorless motor, determining a proper startup logic for the rotor, and starting up the motor in a stable condition. To do this, multiple stator coils of the sensorless motor are supplied with rotor-position detecting drive voltages that are adapted to vary the middle point voltage of the multiple stator coils but do not rotate the motor. The middle point voltage of the stator coils is compared with a detection reference voltage. When the result of the comparison matches one of predetermined detection logic patterns, a proper startup logic is generated in accordance with the position of the rotor specified by the matching detection logic pattern to start up the motor. Otherwise, the detection reference voltage is changed in level, and a new rotor-position detecting signal is generated to repeat the procedure for detecting the rotor position.
摘要翻译：一种能够检测任何类型的无传感器电动机的静止转子的位置的电动机驱动单元，确定用于转子的适当起动逻辑，以及在稳定状态下起动电动机。为此，无传感器电动机的多个定子线圈被提供有适于改变多个定子线圈的中点电压但不旋转电动机的转子位置检测驱动电压。将定子线圈的中点电压与检测参考电压进行比较。当比较结果与预定检测逻辑模式中的一个匹配时，根据由匹配检测逻辑模式指定的转子的位置产生适当的启动逻辑，以启动电动机。否则，检测基准电压变化，产生新的转子位置检测信号，重复检测转子位置的过程。

102. 发明申请

US20070290641A1 Storage device and motor control device 失效
标题翻译：存储装置和电机控制装置
公开(公告)号：US20070290641A1
公开(公告)日：2007-12-20
申请号：US11588499
申请日：2006-10-27
申请人： Hiroshi Oyabu , Takao Abe , Tetsuya Tabuchi
发明人： Hiroshi Oyabu , Takao Abe , Tetsuya Tabuchi
IPC分类号： H02P1/00 , H02P7/00 , H02P3/00
CPC分类号： H02P6/22 , H02P6/24
摘要： In a storage device, a BEMF control is not performed on a motor and the motor is stopped if the motor is in a BEMF-control possible state. Once the motor has completely stopped, a start-up control is performed on the motor.
摘要翻译：在存储装置中，如果电动机处于BEMF控制可能状态，则不对电动机执行BEMF控制，并且电动机停止。一旦电机完全停止，就对电机进行启动控制。

103. 发明授权

US07202623B2 Startup procedure for sensorless brushless DC motor 有权
标题翻译：无传感器无刷直流电机启动程序
公开(公告)号：US07202623B2
公开(公告)日：2007-04-10
申请号：US10708876
申请日：2004-03-30
申请人： Genfu Zhou , Zhigan Wu , Jianping Ying
发明人： Genfu Zhou , Zhigan Wu , Jianping Ying
IPC分类号： H01K39/41
CPC分类号： H02P6/22
摘要： A method for starting-up a motor having multiple stator windings and a rotor contains first providing current to two of the windings to excite a predefined phase and allowing one of the windings floating, Then, the back electromotive force (BEMF) induced in the floating winding is monitored. If a zero crossing of BEMF occurs in the floating winding within the maximum startup time, then it commutates to the next phase, which is adjacent to the first initial phase in the predetermined sequence of excitation phases. If no zero crossing of BEMF occurs in the floating winding within the maximum startup time, then it commutates to the next phase, which is functionally shifted by two phase-intervals from the predefined phase.
摘要翻译：用于启动具有多个定子绕组和转子的电动机的方法包括首先向两个绕组提供电流以激励预定相位并允许其中一个绕组浮动，然后，在浮动中引起的反电动势（BEMF）绕组受到监控。如果在最大启动时间内在浮动绕组中发生BEMF的零交叉，则它转换到与预定的励磁阶段序列中的第一初始相邻近的下一相。如果在最大启动时间内在浮动绕组中没有发生BEMF过零，则它将转换到从预定义相位功能上移位两个相位间隔的下一相位。

104. 发明授权

US07110206B2 Brushless motor and disk drive apparatus 失效
公开(公告)号：US07110206B2
公开(公告)日：2006-09-19
申请号：US11212451
申请日：2005-08-26
申请人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
发明人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
IPC分类号： G11B15/46
CPC分类号： H02P6/22 , H02P2209/07
摘要： A brushless motor has first and second power transistors which form current paths to three-phase windings so as to rotate a rotor. A position detecting part produces a position signal in response to a rotation of the rotor. An activation operation block controls active operation of the first and second power transistors in response to the position signal. The activation operation block includes a starting operation part which comprises an initial phase setting part, phase changing part and a phase correcting part. The initial phase setting part sets an initial phase of drive signals to the three-phase windings in response to the level of the position signal at the timing of a start signal. The phase changing part changes sequentially the phase of the drive signals to the three-phase windings in the positive direction in response to time. The phase correcting part corrects the phase of the drive signals to the three-phase windings in response to the occurrence of the rising and falling edges of the position signal. Therefore, the brushless motor with reduced position sensor can stably start the rotation of the rotor by using one position signal of one position sensor.

105. 发明授权

US07062160B2 Monitoring current in a motor during acceleration to verify motor frequency lock 失效
公开(公告)号：US07062160B2
公开(公告)日：2006-06-13
申请号：US10176246
申请日：2002-06-20
申请人： Jeffrey A. Heydt , David R. Street
发明人： Jeffrey A. Heydt , David R. Street
IPC分类号： H02P1/46 , H02P1/04
CPC分类号： G11B19/28 , H02P6/08 , H02P6/182 , H02P6/22 , Y10S388/911
摘要： Method and apparatus for accelerating a motor from an intermediate velocity to a final operational velocity. The motor is accelerated from rest to the intermediate velocity through application of fixed duration drive pulses to the spindle motor. Once the motor reaches the intermediate velocity, commutation circuitry and back electromotive force (bemf) detection circuitry use detected bemf from the motor to electronically commutate the motor to accelerate to the final operational speed. A phase lock oscillator (PLO) attempts to acquire frequency lock for the motor. A control circuit measures the current in the motor to evaluate the effectiveness of the phase lock. If the measured current is found to be above a threshold value, the motor is restarted.

106. 发明授权

US07012391B2 Motor acceleration using continuous sequence of current limit values 失效
标题翻译：电机加速度采用连续电流限制值
公开(公告)号：US07012391B2
公开(公告)日：2006-03-14
申请号：US10409967
申请日：2003-04-09
申请人： James Wilford DuLaney
发明人： James Wilford DuLaney
IPC分类号： H02P6/08 , H02P6/20
CPC分类号： H02P6/185 , G11B19/20 , G11B19/2054 , H02P6/22 , H02P6/28
摘要： Method and apparatus for accelerating a motor to an operational velocity using a continuous sequence of current limit values derived from a plurality of discrete current limit values. Each discrete current limit value establishes a maximum current magnitude for the motor over a plurality of intermediate velocities less than the operational velocity. Each current limit value in the continuous sequence of current limit values has a different magnitude for each different one of the plurality of intermediate velocities. The continuous sequence of current limit values are preferably derived by generating coefficients of a multi-order polynomial curve in relation to the discrete current limit values, and obtaining the continuous sequence of current limit values in relation to said coefficients. Faster acceleration, reduced current spiking and less acoustic noise during motor acceleration are thereby obtained.
摘要翻译：用于使用从多个离散电流极限值导出的连续电流极限值序列将电动机加速到运行速度的方法和装置。每个离散电流极限值在小于操作速度的多个中间速度下建立电动机的最大电流大小。电流限制值的连续序列中的每个电流限制值对于多个中间速度中的每个不同的一个速度具有不同的幅度。电流限制值的连续序列优选通过相对于离散电流限制值生成多阶多项式曲线的系数，并获得与所述系数相关的电流限制值的连续序列来导出。从而获得更快的加速度，减少的电流尖峰和较少的马达加速时的声音噪声。

107. 发明授权

US06958877B2 Brushless motor and disk drive apparatus 失效
标题翻译：无刷电机和磁盘驱动装置
公开(公告)号：US06958877B2
公开(公告)日：2005-10-25
申请号：US10329849
申请日：2002-12-26
申请人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
发明人： Makoto Gotou , Hisanori Nagase , Masaki Tagome
IPC分类号： H02P6/22 , G11B15/46
CPC分类号： H02P6/22 , H02P2209/07
摘要： A brushless motor has first and second power transistors which form current paths to three-phase windings so as to rotate a rotor. A position detecting part produces a position signal in response to a rotation of the rotor. An activation operation block controls active operation of the first and second power transistors in response to the position signal. The activation operation block includes a starting operation part which comprises an initial phase setting part, phase changing part and a phase correcting part. The initial phase setting part sets an initial phase of drive signals to the three-phase windings in response to the level of the position signal at the timing of a start signal. The phase changing part changes sequentially the phase of the drive signals to the three-phase windings in the positive direction in response to time. The phase correcting part corrects the phase of the drive signals to the three-phase windings in response to the occurrence of the rising and falling edges of the position signal. Therefore, the brushless motor with reduced position sensor can stably start the rotation of the rotor by using one position signal of one position sensor.
摘要翻译：无刷电动机具有第一和第二功率晶体管，其形成到三相绕组的电流路径，以使转子旋转。位置检测部分响应于转子的旋转产生位置信号。激活操作块响应于位置信号控制第一和第二功率晶体管的有效操作。激活操作块包括启动操作部分，其包括初始相位设置部分，相位改变部分和相位校正部分。初始相位设置部分响应于在起始信号的定时处的位置信号的电平，将驱动信号的初始相位设置到三相绕组。相位变化部根据时间顺序地将驱动信号的相位向正方向改变为三相绕组。响应于位置信号的上升沿和下降沿的发生，相位校正部分将驱动信号的相位校正到三相绕组。因此，具有减小位置传感器的无刷电动机可以通过使用一个位置传感器的一个位置信号来稳定地开始转子的旋转。

108. 发明申请

US20050116675A1 Sensorless control in a permanent magnet machine 有权
标题翻译：永磁机无传感器控制
公开(公告)号：US20050116675A1
公开(公告)日：2005-06-02
申请号：US10724148
申请日：2003-12-01
申请人： Kevin Dooley
发明人： Kevin Dooley
IPC分类号： H02K29/12 , H02P6/18 , H02P6/22 , H02P7/50
CPC分类号： H02P6/182 , H02K29/12 , H02P6/22
摘要： An apparatus and method for providing improved sensorless control of permanent magnet motors is described. Induced electricity from at least one winding set is used to determine rotor position and provide feedback to a commutation circuit driving at least another winding set isolated from the first.
摘要翻译：描述了一种用于提供永磁电动机的改进的无传感器控制的装置和方法。使用来自至少一个绕组的感应电力来确定转子位置，并向至少驱动与第一组隔离的另一绕组组的换向电路提供反馈。

109. 发明授权

US06885163B2 Method for starting a brushless d.c. motor 失效
标题翻译：启动无刷直流电压的方法发动机
公开(公告)号：US06885163B2
公开(公告)日：2005-04-26
申请号：US10472750
申请日：2002-12-16
申请人： Torsten Heidrich
发明人： Torsten Heidrich
IPC分类号： H02P6/185 , H02P6/22 , H02P1/18
CPC分类号： H02P6/185 , H02P6/22
摘要： A process to start a brushless direct current motor with a multiphase stator winding is disclosed, in which, during rotor standstill, a plurality of current impulses is intruded on the stator winding, the current rise time until a current threshold is reached is measured in the stator winding with every current impulse and the rotor position is derived from the measured current rise times. A more precise determination of rotor position is achieved with lower control-related effort for a regulated sensorless start-up in that a plurality of test current impulses is successively intruded on the stator winding in such a way that the test current impulses generate stator flow vectors offset by the same angular increments over 360° electrically in the stator. The current rise time for each stator flow vector is measured in the total current of the stator winding and the phase position of the stator flow vector with the smallest current rise time is determined as the rotor position.
摘要翻译：公开了一种使用多相定子绕组启动无刷直流电动机的过程，其中在转子静止期间，多个电流脉冲被侵入到定子绕组上，直到达到电流阈值的电流上升时间被测量在每个电流脉冲的定子绕组和转子位置是从测量的电流上升时间导出的。通过对于无调节无传感器启动的较低的控制相关努力来实现转子位置的更精确的确定，因为多个测试电流脉冲被连续地侵入定子绕组上，使得测试电流脉冲产生定子流矢量在定子中以相对于360°的角度增量偏移。在定子绕组的总电流中测量每个定子流矢量的当前上升时间，并将具有最小电流上升时间的定子流矢量的相位位置确定为转子位置。

110. 发明申请

US20050007052A1 Power steering device 失效
标题翻译：动力转向装置
公开(公告)号：US20050007052A1
公开(公告)日：2005-01-13
申请号：US10484693
申请日：2002-06-21
申请人： Tetsuya Ozaki
发明人： Tetsuya Ozaki
IPC分类号： B62D6/00 , B62D5/065 , B62D5/07 , B62D101/00 , B62D113/00 , B62D137/00 , H02P6/20 , H02P6/22 , H02P1/00
CPC分类号： B62D5/065 , H02P6/22
摘要： An electric power steering apparatus wherein desired steering assist force can be stably provided by positively precluding actuation of an electric motor while it is rotating in a reverse direction so as to prevent demagnetization of the electric motor. This apparatus includes motor reverse rotation detecting means for detecting whether or not the electric motor is rotating in the reverse direction and motor actuation control means for actuating the electric motor when a condition for actuating the electric motor is fulfilled and on condition that the electric motor is not rotating in the reverse direction.
摘要翻译：一种电动助力转向装置，其特征在于，通过在逆电动机旋转的同时积极地排除电动机的动作，能够稳定地提供所需的转向辅助力，以防止电动机的退磁。该装置包括电动机反转检测装置，用于检测电动机是否沿相反方向旋转;以及电动机致动控制装置，用于在满足用于致动电动机的条件时启动电动机，并且在电动机为不反向旋转。

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