公开(公告)号：US09825577B2

公开(公告)日：2017-11-21

申请号：US15014228

申请日：2016-02-03

申请人： NIDEC SERVO CORPORATION

发明人： Masatomo Ishikawa

IPC分类号： H02P6/06 ,  H02P29/024 ,  H02P6/182

CPC分类号： H02P29/027 ,  H02P6/182

摘要： A drive control device of a motor includes a comparison unit for comparing a first voltage value, which increases or decreases depending on a current value obtained in an inverter unit of the motor, with a reference voltage value, and an arithmetic processing unit for determining presence or absence of an overcurrent based on a comparison result of the comparison unit. The arithmetic processing unit includes a first terminal and a second terminal. The comparison result of the comparison unit is inputted to the first terminal. The second terminal receives the input of the first voltage value and outputs an operation confirmation signal to the comparison unit at predetermined timings. The arithmetic processing unit determines an overcurrent state based on the first voltage value and determines a state of the first terminal based on an output timing of the operation confirmation signal from the second terminal.

公开(公告)号：US09763551B2

公开(公告)日：2017-09-19

申请号：US14256646

申请日：2014-04-18

申请人： Dyson Technology Limited

发明人： Russell Scott Murchie ,  Mark Stamford Vanderstegen-Drake

IPC分类号： H02P6/06 ,  A47L9/28 ,  A47L9/12 ,  H02P6/34

CPC分类号： A47L9/2842 ,  A47L9/12 ,  A47L9/2821 ,  A47L9/2831 ,  A47L9/2852 ,  A47L2201/06 ,  H02P6/34

摘要： An air moving appliance comprising an electric motor coupled to a fan, a control system for controlling the motor, the control system including monitoring means configured to monitor a motor load parameter; memory means configured to store a predetermined reference motor load parameter value; compensating means that determines a compensated reference motor load parameter value based on the predetermined reference motor load parameter value and a set of ambient environment input conditions; comparison means configured to compare the motor load parameter and the compensated reference motor load parameter value and trigger an operational event based on the result of the comparison. The invention also relates to a method of controlling an air moving appliance.

公开(公告)号：US20170257045A1

公开(公告)日：2017-09-07

申请号：US15599444

申请日：2017-05-18

申请人： Zhongshan Broad-Ocean Motor Co., Ltd.

发明人： Wenqing BIAN

IPC分类号： H02P7/06 ,  H02P6/16 ,  H02P6/06 ,  H03K7/08 ,  H02P6/12 ,  H02P7/29 ,  H02P6/26

CPC分类号： H02P7/06 ,  H02P6/06 ,  H02P6/12 ,  H02P6/16 ,  H02P6/26 ,  H02P7/29 ,  H02P27/08 ,  H03K7/08

摘要： An interface circuit, including: a micro control unit (MCU), an isolated power supply, and a signal isolating circuit. The MCU, the isolated power supply, and the signal isolating circuit are integrated on a circuit board. The output end of the isolated power supply supplies power for circuits. The input end of the isolated power supply is connected to an external input power supply. The A/D conversion input port of the MCU is connected to the analog voltage signals. The MCU is configured to convert the analog voltage signals into pulse width modulation (PWM) signals or variable frequency signals with certain duty cycles, and output the PWM signals or the variable frequency signals to the input end of the signal isolating circuit. The signal isolating circuit is configured to output the PWM signals or the variable frequency signals with certain duty cycles.

公开(公告)号：US20170250642A1

公开(公告)日：2017-08-31

申请号：US15120921

申请日：2014-12-31

申请人： BEIJING AEONMED CO., LTD.

发明人： Yajing Fan

IPC分类号： H02P23/00 ,  H02P6/06

CPC分类号： H02P23/0004 ,  H02P6/06 ,  H02P2205/07

摘要： A rotation speed control method and device of a motor, and a motor control system; the rotation speed control method of the motor comprises the following steps: conducting differential regulation on the output rotation speed of the motor to generate a feedback rotation speed signal (S1); generating a rotation speed deviation signal according to a target rotation speed signal and the feedback rotation speed signal (S2); conducting proportional integral regulation on the rotation speed deviation signal to generate a rotation speed control signal (S3); and controlling the rotation speed of the motor according to the rotation speed control signal (S4). The rotation speed control method, the rotation speed control device and the motor control system run steadily and have good dynamic performance, and are easy to implement.

公开(公告)号：US09698710B2

公开(公告)日：2017-07-04

申请号：US14905005

申请日：2014-04-07

申请人： Sharp Kabushiki Kaisha

发明人： Kohtaroh Kataoka ,  Masaru Nomura ,  Takeshi Shiomi ,  Shuji Wakaiki ,  Akihide Shibata ,  Hiroshi Iwata

IPC分类号： H02P6/06 ,  G05F1/67 ,  H02M3/28 ,  H02M7/48 ,  H02J7/35 ,  H02M7/5387 ,  H01L31/042 ,  H02M3/335 ,  H02M7/537

CPC分类号： H02P6/06 ,  G05F1/67 ,  H01L31/042 ,  H02J3/385 ,  H02J7/35 ,  H02M3/28 ,  H02M3/33523 ,  H02M7/48 ,  H02M7/4807 ,  H02M7/537 ,  H02M7/53871 ,  Y02E10/50 ,  Y02E10/58

摘要： A solar energy utilization system includes a solar panel, a motor driven by an inverter circuit functioning as a motor drive circuit with power output by the solar panel, a solar output voltage monitor functioning as a monitor that monitors an input or an output of the solar panel and also functioning as a monitor that monitors an input or an output of the inverter circuit, and a controller. The controller has a control mode in which the inverter circuit is controlled such that an output voltage of the solar panel is maintained at a voltage higher than a maximum power point voltage. In this control mode, the controller performs the control such that a rotation speed of the motor is changed repeatedly at predetermined timings.

公开(公告)号：US09628004B2

公开(公告)日：2017-04-18

申请号：US15022321

申请日：2014-08-22

申请人： DENSO CORPORATION

发明人： Koji Sakai

IPC分类号： H02P1/04 ,  H02P6/14 ,  H02P6/18 ,  H02P27/06 ,  H02P6/06 ,  H02K9/20 ,  H02P29/68

CPC分类号： H02P6/14 ,  B60L1/00 ,  B60L15/08 ,  B60L2210/40 ,  B60L2240/525 ,  H02K9/20 ,  H02M7/5395 ,  H02P6/06 ,  H02P6/18 ,  H02P27/06 ,  H02P27/085 ,  H02P29/68

摘要： A motor drive device includes: an inverter circuit that has three switching elements corresponding to three phases of a three-phase motor coil, converts a DC applied voltage of a power source to an AC voltage by a PWM, and output the AC voltage to the motor coil; a voltage detection device for the DC applied voltage; and a control device that controls the PWM. The control device selects a first modulation method, for fixing the on/off-state of a part of the switching elements and for switching the on/off-state of the other part of the switching elements, or a second modulation method, for switching the on/off-state of the switching elements corresponding to three phases. The control device switches from the first modulation method to the second modulation method when the DC applied voltage is equal to or greater than a predetermined voltage, and the first modulation method is selected.

公开(公告)号：US09520808B2

公开(公告)日：2016-12-13

申请号：US14288067

申请日：2014-05-27

申请人： General Electric Company

发明人： Allen Michael Ritter ,  Robert Allen Seymour ,  Rajib Datta ,  John Douglas D'Atre

IPC分类号： H02P6/06 ,  H02M7/5387 ,  H02P27/06 ,  H02M1/40 ,  H02P27/10 ,  H02P27/12

CPC分类号： H02M7/53873 ,  H02M1/40 ,  H02P27/06 ,  H02P27/10 ,  H02P27/12

摘要： A method and system for a control circuit are provided. The circuit includes an integrating counter coupled to a process wherein the integrating counter is configured to integrate over time a process parameter signal received from the process and to generate a trigger signal when the integrated signal equals a predetermined count. The control circuit also includes a transition controller electrically coupled to a respective control element and configured to receive the trigger signal generated by the integrating counter.

摘要翻译： 提供了一种用于控制电路的方法和系统。 该电路包括一个与一个过程耦合的积分计数器，其中该积分计数器配置成随着时间的过去积分从该过程接收到的一个过程参数信号，并在该积分信号等于一个预定计数时产生一个触发信号。 控制电路还包括电耦合到相应的控制元件并被配置为接收由积分计数器产生的触发信号的转换控制器。

公开(公告)号：US09435280B2

公开(公告)日：2016-09-06

申请号：US14197494

申请日：2014-03-05

申请人： Continental Automotive Systems, Inc.

发明人： Izcoati Emmanuel Sanchez Gonzalez ,  Sergio Garcia de Alba Garcin ,  Oscar Alexjandro Camacho ,  Rafael Cobas Asensio

IPC分类号： H02P6/06 ,  F02D41/20 ,  F02M51/06 ,  F02M65/00

CPC分类号： F02D41/20 ,  F02D2041/2041 ,  F02D2041/2044 ,  F02D2041/2079 ,  F02M51/0617 ,  F02M65/005

摘要： A detection circuit for a diesel injection valve includes a first threshold, a first comparator for receiving a BEMF signal from the valve and compare the BEMF signal to the first threshold, a filter for filtering the BEMF signal thereby providing a filtered BEMF signal, a second threshold, and a second comparator for comparing a difference between the BEMF signal and the filtered BEMF signal to the second threshold, indicating an end of motion of the valve. An output of the first comparator and an output of the second comparator are joined to define an output signal. The output signal is activated only when the BEMF signal is above the first threshold and when the difference between the BEMF signal and the filtered BEMF signal is greater than the second threshold.

摘要翻译： 用于柴油喷射阀的检测电路包括第一阈值，用于从阀接收BEMF信号并将BEMF信号与第一阈值进行比较的第一比较器，用于对BEMF信号进行滤波从而提供经滤波的BEMF信号的滤波器， 阈值，以及第二比较器，用于将BEMF信号和滤波后的BEMF信号之间的差值与第二阈值进行比较，指示阀的运动结束。 第一比较器的输出和第二比较器的输出被连接以限定输出信号。 只有当BEMF信号高于第一阈值并且BEMF信号和滤波后的BEMF信号之间的差异大于第二阈值时，输出信号才被激活。

公开(公告)号：US09431933B2

公开(公告)日：2016-08-30

申请号：US14601683

申请日：2015-01-21

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Tomohiro Takami ,  Yoshiki Nagata

IPC分类号： H02P6/06 ,  H02P6/00 ,  H02P6/16 ,  H02P6/18 ,  H02P6/08

CPC分类号： H02P6/28 ,  H02P6/06 ,  H02P6/08 ,  H02P6/16 ,  H02P6/182 ,  H02P29/032

摘要： Provided is an inverter apparatus capable of preventing occurrence of overcurrent in an AC motor and stably controlling driving of the AC motor. The inverter apparatus controlling the AC motor included in an electric compressor includes a shunt resistor for detecting current flowing in the AC motor, and a limit value control unit controlling a current limit value for a detected current detected at the shunt resistor. The limit value control unit determines whether the number of times the detected current becomes equal to or more than the first threshold within a first predetermined time is equal to or more than a first number of times. The limit value control unit decreases the current limit value when the number of times the detected current becomes equal to or more than the first threshold within the first predetermined time is equal to or more than the first number of times.

摘要翻译： 提供一种逆变器装置，能够防止交流电动机中发生过电流，稳定地控制交流电动机的驱动。 控制包括在电动压缩机中的AC电动机的逆变器装置包括用于检测在AC电动机中流动的电流的分流电阻器和控制在分流电阻器处检测到的检测电流的电流限制值的限制值控制单元。 限制值控制单元确定在第一预定时间内检测到的电流等于或大于第一阈值的次数等于或大于第一次。 当在第一预定时间内检测电流变得等于或大于第一阈值的次数等于或大于第一次数时，限制值控制单元减小电流限制值。

公开(公告)号：US09419550B2

公开(公告)日：2016-08-16

申请号：US14309162

申请日：2014-06-19

申请人： Samsung Electronics Co., Ltd.

发明人： Hyun-bae Kim ,  Jung-hyo Lee ,  Jei-hoon Baek ,  Kyu-bum Han

IPC分类号： H02P6/06 ,  H02P6/08 ,  H02P21/06

CPC分类号： H02P6/08 ,  H02P21/06

摘要： A method of controlling torque of a permanent magnet synchronous motor (PMSM) by using a speed-torque lookup table may include: receiving a current direct-current (DC) link voltage of an inverter configured to drive the PMSM and a speed of a rotor of the PMSM; calculating a change ratio of a DC link voltage based on the current DC link voltage and a DC link voltage at a time when the speed-torque lookup table is generated; calculating a normalized speed of the rotor according to a change in the DC link voltage by using the speed of the rotor and the change ratio of the DC link voltage; and/or transferring the normalized speed of the rotor as an input to the speed-torque lookup table.

摘要翻译： 通过使用速度 - 转矩查找表来控制永磁同步电动机（PMSM）的转矩的方法可以包括：接收构造成驱动PMSM的反相器的电流直流（DC）链路电压和转子的速度 的PMSM; 基于当前的DC链路电压和产生速度 - 转矩查找表时的DC链路电压来计算DC链路电压的变化率; 通过使用转子的转速和直流母线电压的变化比，根据直流母线电压的变化来计算转子的归一化速度; 和/或将作为输入的转子的归一化速度传送到速度 - 扭矩查找表。