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91. 发明申请

US20170331399A1 MOTOR CONTROL DEVICE 审中-公开
公开(公告)号：US20170331399A1
公开(公告)日：2017-11-16
申请号：US15455252
申请日：2017-03-10
申请人： Taiki Yamane , Toshio Saito
发明人： Taiki Yamane , Toshio Saito
IPC分类号： H02P6/12 , H02P6/06
CPC分类号： H02P6/12 , H02P6/06 , H02P29/0241
摘要： A motor control device includes: an inverter circuit including a semiconductor switching element for drive which drives a motor; a cut-off circuit including a semiconductor switching element for cut-off which cuts off an electric connection between the motor and the inverter circuit; a failure detection unit; a rotation number detection unit; and a control unit. In a case where the failure detection unit detects a failure of the semiconductor switching element for drive, the control unit turns off the semiconductor switching element for drive, and in a case where the number of rotations of the motor which is detected by the rotation number detection unit is less than a predetermined first threshold, the control unit further turns off the semiconductor switching element for cut-off.

92. 发明授权

US09817373B2 System and method for communicating data with a motor controller 有权
公开(公告)号：US09817373B2
公开(公告)日：2017-11-14
申请号：US14595523
申请日：2015-01-13
申请人： Regal Beloit America, Inc.
发明人： William Arthur Ziegler , Katie D. Hamilton , Paul Steven Mullin , Jeffrey Jay Long , Michael David Smith
IPC分类号： G05B11/42 , H02P6/00 , H02P6/12 , H02P6/06
CPC分类号： G05B11/42 , H02P6/06 , H02P6/12
摘要： A motor controller configured to be coupled to a motor and to a system controller is described. The motor controller includes a proportional-integral (PI) regulator coupled to a timer controller. The motor controller is configured to generate, by the PI regulator, a pulsed signal representing a reported speed of the motor. Additionally, the motor controller is configured to transmit the pulsed signal to the system controller, measure a time period that elapses for the motor to make a predefined number of revolutions, measure a number of pulses transmitted in the pulsed signal, and determine a measured speed of the motor from the time period. Further, the motor controller is configured to determine, by the PI regulator, a difference between the reported speed and the measured speed, and adjust, by the PI regulator, the pulsed signal based on the difference between the reported speed and the measured speed.

93. 发明申请

US20170297612A1 MOTOR CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS USING THE SAME AND VEHICLE 审中-公开
公开(公告)号：US20170297612A1
公开(公告)日：2017-10-19
申请号：US15507814
申请日：2015-09-02
申请人： NSK LTD.
发明人： Kyosho URYU , Shigeru FUKINUKI
IPC分类号： B62D5/04 , H02P6/28 , B62D6/08 , H02P6/12
CPC分类号： B62D5/0463 , B62D5/0457 , B62D5/0475 , B62D5/0481 , B62D6/08 , H02P6/12 , H02P6/28 , H02P27/06
摘要： A motor control unit which drives a motor through an inverter based on a calculated command value of a control section to which a power supply voltage is supplied, including: a charging/discharging mechanism for charging and discharging electric charges of an inverter voltage supplied to the inverter; and a separation means for separating the charging/discharging mechanism from the power supply voltage, wherein when a warning signal informing of a drop in the power supply voltage is inputted, the charging/discharging mechanism is separated from the power supply voltage by the separation means as well as a voltage is applied to the control section from the charging/discharging mechanism to avoid power supply reset of the control section. The motor may be a motor with multi-system windings.

94. 发明授权

US09793835B2 Power conversion device and method for diagnosing failure thereof 有权
公开(公告)号：US09793835B2
公开(公告)日：2017-10-17
申请号：US15378110
申请日：2016-12-14
申请人： Mitsubishi Electric Corporation
发明人： Kenichi Fujie , Katsuya Tsujimoto , Takamasa Asai
IPC分类号： H02H7/08 , H02P6/12 , H02M7/5387 , G01R31/42 , H02M1/32
CPC分类号： H02P6/12 , G01R31/42 , H02M1/32 , H02M7/5387
摘要： Provided is a power conversion device, including a fault determination unit (11) for determining, based on phase voltages of a polyphase dynamo-electric machine (4) detected by phase voltage detection units (10), a power, earth, or open fault of armature windings of the polyphase dynamo-electric machine (4). The fault determination unit (11) determines, in a state that all power semiconductor switching elements (2) are in an off state and no induction voltage is generated in the armature windings of the polyphase dynamo-electric machine (4), the power fault when all the phase voltages are substantially equal to an anode potential of a DC power supply (3), the earth fault when all the phase voltages are substantially equal to a cathode potential of the DC power supply (3), and the open fault when all the phase voltages are not substantially the same potential.

95. 发明授权

US09742322B2 Techniques for controlling a brushless DC (BLDC) electric motor 有权
公开(公告)号：US09742322B2
公开(公告)日：2017-08-22
申请号：US14796754
申请日：2015-07-10
申请人： Infineon Technologies AG
发明人： Nagappan Rethinam , Prashant Abhishek
IPC分类号： H02P6/16 , H02P6/00 , H02P6/12 , H02P6/14 , H02P29/028
CPC分类号： H02P6/16 , H02P6/12 , H02P6/14 , H02P29/028 , H02P29/032
摘要： A controller for controlling a brushless DC (BLDC) electric motor is described. The controller may include a hall control module and a timing module. The hall control module may be configured to receive inputs from three hall sensors, detect one of the three hall sensors has failed based on the received inputs, responsive to detecting that the one of the three hall sensors has failed, switch from a three hall sensors mode to a two hall sensors mode, and generate an output to control a plurality of switches to energize appropriate motor phase windings in the BLDC motor based at least in part on the two hall sensors mode. The timing module may be configured to detect a commutation time from the received inputs.

96. 发明申请

US20170187312A1 Method And Device For Controlling The Operation Of An Electric Motor 审中-公开
公开(公告)号：US20170187312A1
公开(公告)日：2017-06-29
申请号：US15324131
申请日：2015-06-09
申请人： CONTI TEMIC MICROELECTRONIC GMBH
发明人： Patrick HINZE , Andreas SCHULZE , Matthias PEUCKERT
IPC分类号： H02P21/22 , H02P6/08
CPC分类号： H02P21/22 , H02P6/085 , H02P6/12 , H02P9/10 , H02P21/05
摘要： A method controls the operation of an electric motor. Wherein electrical voltages applied to electrical phases of the electric motor are produced and output in a controlled manner in a modulation on the basis of a rotor position of the electric motor, on the basis of a set point/actual comparison, which is performed in a control loop with a speed controller, for a speed of the electric motor and on the basis of a set point/actual comparison. A set point value at the input of the current regulator is formed by multiplying a present duty factor for the modulation by a first manipulated variable applied to the output of the speed controller. The first manipulated variable of the speed controller becomes an equivalent phase current root mean square value for the electric motor in the underlying current regulator by the multiplication by the present duty factor.

97. 发明授权

US09680404B2 Abnormality detection apparatus and abnormality detection method 有权
公开(公告)号：US09680404B2
公开(公告)日：2017-06-13
申请号：US15160554
申请日：2016-05-20
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Seiya Kataoka
IPC分类号： G01R31/02 , H02H3/04 , H02H7/08 , H02K11/00 , H02P1/00 , H02P3/00 , H02P5/00 , H02P7/00 , H02P6/12 , G01R31/34 , G01R31/42 , G07C3/00
CPC分类号： H02P6/12 , G01R31/34 , G01R31/343 , G01R31/42 , G07C3/00 , H02P29/0241 , H02P29/032
摘要： An abnormality detection apparatus configured to detect an abnormality of an inverter provided to control a motor generator when a value obtained by performing a predetermined process for a current value representing electric current flowing between an arm included in the inverter and the motor generator is greater than a threshold value, wherein when a reverse voltage by the motor generator is higher than a system voltage, the threshold value is larger than a value obtained by performing the predetermined process for electric current generated by the reverse voltage.

98. 发明授权

US09628003B2 Direct current power supply device, motor driving device, air conditioner, and refrigerator 有权
公开(公告)号：US09628003B2
公开(公告)日：2017-04-18
申请号：US15029648
申请日：2013-10-18
申请人： Mitsubishi Electric Corporation
发明人： Yosuke Shinomoto , Kazunori Hatakeyama , Shota Kamiya
IPC分类号： H02H7/08 , H02P6/12 , H02M1/32 , H02M3/158 , H02M7/217 , F25B31/02 , H02H7/12 , H02K1/02 , H02K1/27 , H02M7/06 , H02P29/024 , H02M1/00 , H02M3/155
CPC分类号： H02P6/12 , F25B31/02 , H02H7/1213 , H02H7/1255 , H02K1/02 , H02K1/27 , H02M1/32 , H02M3/158 , H02M7/06 , H02M7/2176 , H02M2001/007 , H02M2001/325 , H02M2003/1552 , H02P29/027
摘要： A direct-current power supply device includes a rectifier connected to a power supply, a charge storage unit configured by a first capacitor and a second capacitor connected in series, a switching unit configured by a first switching element 4a and a second switching element connected in series and backflow preventing elements that suppress a backflow of electric charges from the charge storage unit, a reactor, a control unit that controls operations of the first switching element and the second switching element, and a direct-current-voltage detecting unit that detects a first both-end voltage, which is a voltage across the first capacitor, and a second both-end voltage, which is a voltage across the second capacitor. The control unit detects, on the basis of a voltage difference between the first both-end voltage and the second both-end voltage, a short-circuit failure of one of the first switching element and the second switching element.

99. 发明授权

US09590543B2 Sensorless drive device and control method thereof 有权
标题翻译：无传感器驱动装置及其控制方法
公开(公告)号：US09590543B2
公开(公告)日：2017-03-07
申请号：US14758337
申请日：2013-12-10
申请人： MIKUNI CORPORATION
发明人： Kenichi Watanabe , Naoki Kobayashi , Kazuhiro Fujiwara , Takashi Doi
IPC分类号： H02P6/00 , H02P6/20 , H02P6/18 , H02P6/08
CPC分类号： H02P6/12 , H02P6/085 , H02P6/18 , H02P6/182 , H02P6/21
摘要： The purpose of the present invention is to reduce noise by controlling vibration due to rotation fluctuation, and to consume only current required for maintaining the rotation by bringing the current for driving a motor closer to a state of synchronization. A drive means drives a sensorless brushless DC motor by switching an energization pattern at a constant frequency to determine the rotation position of the rotor of the sensorless brushless DC motor. A detection means detects a zero-cross signal representing the switching of the phase of the rotor. A calculation means calculates a synchronization determination rate representing a percentage of the number of detected zero-cross signals. A pulse width control means controls the pulse width of a PWM drive duty in the drive means so that the calculated synchronization determination rate falls within a target range.
摘要翻译：本发明的目的是通过控制由于旋转波动引起的振动来减少噪声，并且仅通过使用于驱动马达的电流更接近于同步状态而仅消耗维持旋转所需的电流。驱动装置通过以恒定频率切换通电模式来驱动无传感器无刷直流电动机，以确定无传感器无刷直流电动机的转子的旋转位置。检测装置检测表示转子相位切换的零交叉信号。计算装置计算表示检测到的零交叉信号的百分比的同步确定率。脉冲宽度控制装置控制驱动装置中的PWM驱动占空比的脉冲宽度，使得计算出的同步判定率落在目标范围内。

100. 发明授权

US09543880B2 Rotary machine control apparatus 有权
标题翻译：旋转机控制装置
公开(公告)号：US09543880B2
公开(公告)日：2017-01-10
申请号：US14793390
申请日：2015-07-07
申请人： DENSO CORPORATION
发明人： Kouichi Nakamura , Takashi Suzuki , Yoshitaka Hayashi
IPC分类号： H02P25/22 , H02P6/12 , B62D5/04
CPC分类号： H02P25/22 , B62D5/0463 , B62D5/0484 , B62D5/0487 , H02P6/12 , H02P29/0241 , H02P29/032
摘要： A rotary machine control apparatus controlling a drive of a rotary machine that has multiple winding groups is provided. The rotary machine control apparatus includes electric power converters in multiple systems, a failure detection portion, and a control portion. An electric power converter has switching elements in an upper arm and a lower arm and converts DC power. The failure detection portion detects a failure of an electric power converter or a winding group. The control portion calculates a current command value and a maximum current limit value, and controls an output to the electric power converter. The control portion stops the output to the electric power converter in a failure system, and the control portion increases the maximum current limit value with respect to the output to an electric power converter in a normal system.
摘要翻译：提供一种控制具有多个绕组的旋转机械的驱动的旋转机械控制装置。旋转机械控制装置包括多个系统中的电力转换器，故障检测部分和控制部分。电力转换器具有上臂和下臂中的开关元件，并转换直流电力。故障检测部检测电力转换器或绕组组的故障。控制部分计算电流指令值和最大电流限制值，并且控制对电力转换器的输出。控制部在失效系统中停止向电力转换器的输出，并且控制部在正常系统中将对于输出的最大电流限制值增加到电力转换器。

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