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公开(公告)号：US20200235692A1
公开(公告)日：2020-07-23
申请号：US16746129
申请日：2020-01-17
申请人： Hiromi Murata , Jiro Matsukawa , Tomoya Yamanaka , Masamitsu Hamasaki , Naoyuki Ito , Keita Gunji
发明人： Hiromi Murata , Jiro Matsukawa , Tomoya Yamanaka , Masamitsu Hamasaki , Naoyuki Ito , Keita Gunji
IPC分类号： H02P27/08 , H02M7/5387 , H02M1/088
摘要： Provided is a motor control device that includes a controller outputting a PWM control signal for controlling a multiphase electric motor, a driving signal generator generating a switching element driving signal for driving the multiphase electric motor according to the PWM control signal output from the controller, and a bridge circuit configured of a plurality of semiconductor switching elements switching a current flowing through the multiphase electric motor according to the switching element driving signal generated by the driving signal generator. The controller is provided on a first board. The driving signal generator and the bridge circuit are provided on a second board and are connected by wiring provided on the second board. The first board and the second board are connected by a predetermined inter-board connecting line. The controller outputs the PWM control signal to the driving signal generator through the predetermined inter-board connecting line.
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公开(公告)号：US20130033209A1
公开(公告)日：2013-02-07
申请号：US13564284
申请日：2012-08-01
申请人： Hiromi Murata , Masamitsu Hamasaki
发明人： Hiromi Murata , Masamitsu Hamasaki
IPC分类号： H02P6/08
CPC分类号： B62D5/0484 , B62D5/049 , H02P6/28 , H02P23/14
摘要： A motor control device has a motor driving circuit for driving a motor, a current detection circuit for detecting a motor current flowing through the motor driving circuit, and a controller for calculating a detected value of the motor current based on an output of the current detection circuit, comparing the detected value with a target value of the motor current, and generating a command value for allowing a motor current of the target value to flow through the motor based on a deviation therebetween, to output the command value to a motor driving circuit. The current detection circuit is configured of a first current detection circuit having a positive first gain and a second current detection circuit having a negative second gain obtained by inverting the first gain.
摘要翻译： 电动机控制装置具有用于驱动电动机的电动机驱动电路，用于检测流过电动机驱动电路的电动机电流的电流检测电路，以及基于电流检测的输出来计算电动机电流的检测值的控制器 电路，将检测值与电动机电流的目标值进行比较，并且生成用于使目标值的电动机电流基于它们之间的偏差流过电动机的指令值，以将指令值输出到电动机驱动电路 。 电流检测电路由具有正的第一增益的第一电流检测电路和具有通过反转第一增益而获得的负第二增益的第二电流检测电路构成。
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公开(公告)号：US11239786B2
公开(公告)日：2022-02-01
申请号：US16746129
申请日：2020-01-17
申请人： Hiromi Murata , Jiro Matsukawa , Tomoya Yamanaka , Masamitsu Hamasaki , Naoyuki Ito , Keita Gunji
发明人： Hiromi Murata , Jiro Matsukawa , Tomoya Yamanaka , Masamitsu Hamasaki , Naoyuki Ito , Keita Gunji
IPC分类号： H02P27/08 , H02M1/088 , H02M7/5387
摘要： Provided is a motor control device that includes a controller outputting a PWM control signal for controlling a multiphase electric motor, a driving signal generator generating a switching element driving signal for driving the multiphase electric motor according to the PWM control signal output from the controller, and a bridge circuit configured of a plurality of semiconductor switching elements switching a current flowing through the multiphase electric motor according to the switching element driving signal generated by the driving signal generator. The controller is provided on a first board. The driving signal generator and the bridge circuit are provided on a second board and are connected by wiring provided on the second board. The first board and the second board are connected by a predetermined inter-board connecting line. The controller outputs the PWM control signal to the driving signal generator through the predetermined inter-board connecting line.
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公开(公告)号：US08884559B2
公开(公告)日：2014-11-11
申请号：US13102201
申请日：2011-05-06
申请人： Hiromi Murata , Tsuyoshi Tada , Masamitsu Hamasaki , Taiki Yamane
发明人： Hiromi Murata , Tsuyoshi Tada , Masamitsu Hamasaki , Taiki Yamane
CPC分类号： H02P29/00 , B62D5/0484 , B62D5/0487 , H02P29/024
摘要： A motor drive device has an inverter circuit, in which at least three sets of a pair of upper and lower arms including a semiconductor switching element on an upper arm and a lower arm is arranged, for supplying voltage to a motor based on ON/OFF operation of each semiconductor switching element by a PWM (Pulse Width Modulation) signal, an inverter drive unit for outputting the PWM signal to each semiconductor switching element of the inverter circuit, a fail safe circuit, arranged between the inverter circuit and the motor, including a semiconductor switching element for shielding the voltage supply from the inverter circuit to the motor for each phase, and a fail safe drive unit for outputting a signal for turning ON/OFF the semiconductor switching element of the fail safe circuit.
摘要翻译： 电动机驱动装置具有逆变器电路，其中布置有至少三组包括上臂和下臂上的半导体开关元件的上下臂，用于基于ON / OFF向马达提供电压 通过PWM（脉宽调制）信号对每个半导体开关元件进行操作，将PWM信号输出到逆变器电路的每个半导体开关元件的逆变器驱动单元，布置在逆变器电路和电动机之间的故障保护电路，包括 用于屏蔽用于每相的逆变器电路对电动机的电压供应的半导体开关元件，以及用于输出用于导通/断开故障保护电路的半导体开关元件的信号的故障保护驱动单元。
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公开(公告)号：US20110273122A1
公开(公告)日：2011-11-10
申请号：US13102201
申请日：2011-05-06
申请人： Hiromi Murata , Tsuyoshi Tada , Masamitsu Hamasaki , Taiki Yamane
发明人： Hiromi Murata , Tsuyoshi Tada , Masamitsu Hamasaki , Taiki Yamane
IPC分类号： H02H7/09
CPC分类号： H02P29/00 , B62D5/0484 , B62D5/0487 , H02P29/024
摘要： A motor drive device has an inverter circuit, in which at least three sets of a pair of upper and lower arms including a semiconductor switching element on an upper arm and a lower arm is arranged, for supplying voltage to a motor based on ON/OFF operation of each semiconductor switching element by a PWM (Pulse Width Modulation) signal, an inverter drive unit for outputting the PWM signal to each semiconductor switching element of the inverter circuit, a fail safe circuit, arranged between the inverter circuit and the motor, including a semiconductor switching element for shielding the voltage supply from the inverter circuit to the motor for each phase, and a fail safe drive unit for outputting a signal for turning ON/OFF the semiconductor switching element of the fail safe circuit.
摘要翻译： 电动机驱动装置具有逆变器电路，其中布置有至少三组包括上臂和下臂上的半导体开关元件的上下臂，用于基于ON / OFF向马达提供电压 通过PWM（脉宽调制）信号对每个半导体开关元件进行操作，将PWM信号输出到逆变器电路的每个半导体开关元件的逆变器驱动单元，布置在逆变器电路和电动机之间的故障保护电路，包括 用于屏蔽用于每相的逆变器电路对电动机的电压供应的半导体开关元件，以及用于输出用于导通/断开故障保护电路的半导体开关元件的信号的故障保护驱动单元。
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公开(公告)号：US08901863B2
公开(公告)日：2014-12-02
申请号：US13564284
申请日：2012-08-01
申请人： Hiromi Murata , Masamitsu Hamasaki
发明人： Hiromi Murata , Masamitsu Hamasaki
CPC分类号： B62D5/0484 , B62D5/049 , H02P6/28 , H02P23/14
摘要： A motor control device has a motor driving circuit for driving a motor, a current detection circuit for detecting a motor current flowing through the motor driving circuit, and a controller for calculating a detected value of the motor current based on an output of the current detection circuit, comparing the detected value with a target value of the motor current, and generating a command value for allowing a motor current of the target value to flow through the motor based on a deviation therebetween, to output the command value to a motor driving circuit. The current detection circuit is configured of a first current detection circuit having a positive first gain and a second current detection circuit having a negative second gain obtained by inverting the first gain.
摘要翻译： 电动机控制装置具有用于驱动电动机的电动机驱动电路，用于检测流过电动机驱动电路的电动机电流的电流检测电路，以及基于电流检测的输出来计算电动机电流的检测值的控制器 电路，将检测值与电动机电流的目标值进行比较，并且生成用于使目标值的电动机电流基于它们之间的偏差流过电动机的指令值，以将指令值输出到电动机驱动电路 。 电流检测电路由具有正的第一增益的第一电流检测电路和具有通过反转第一增益而获得的负第二增益的第二电流检测电路构成。
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公开(公告)号：US08829833B2
公开(公告)日：2014-09-09
申请号：US13564284
申请日：2012-08-01
申请人： Hiromi Murata , Masamitsu Hamasaki
发明人： Hiromi Murata , Masamitsu Hamasaki
摘要： A motor control device has a motor driving circuit for driving a motor, a current detection circuit for detecting a motor current flowing through the motor driving circuit, and a controller for calculating a detected value of the motor current based on an output of the current detection circuit, comparing the detected value with a target value of the motor current, and generating a command value for allowing a motor current of the target value to flow through the motor based on a deviation therebetween, to output the command value to a motor driving circuit. The current detection circuit is configured of a first current detection circuit having a positive first gain and a second current detection circuit having a negative second gain obtained by inverting the first gain.
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公开(公告)号：US10574171B2
公开(公告)日：2020-02-25
申请号：US16271326
申请日：2019-02-08
申请人： Toshio Saito , Hiromi Murata
发明人： Toshio Saito , Hiromi Murata
IPC分类号： H02M1/32 , H02P29/024 , H02M7/5387 , H02M1/08 , H02P27/08 , H02H7/18 , H02H7/122
摘要： An inductive load control device includes: an electric path configured to connect an external DC power supply and an inductive load drive unit; an opening and closing unit configured to connect or disconnect the electric path; a voltage detection unit configured to detect a voltage difference between ends of the opening and closing unit; and a failure detection unit configured to detect a failure of the opening and closing unit. The opening and closing unit includes: series-connected first and second switching elements; and a diode connected in series with the first switching element and in parallel with the second switching element such that an anode of the diode is disposed in a direction of the DC power supply. The failure detection unit is configured to detect that the second switching element is in a non-conduction failure, based on the voltage difference.
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公开(公告)号：US20150280609A1
公开(公告)日：2015-10-01
申请号：US14669384
申请日：2015-03-26
申请人： Hiromi Murata
发明人： Hiromi Murata
IPC分类号： H02M7/537
CPC分类号： H02M7/537 , H02M7/5387 , H02M2001/325
摘要： A motor driving device includes a failure detector detecting the failure of switching elements and diodes of an inverter circuit. When the failure detection unit detects a failure according to which a switching element of a phase C upper stage is not conducting, but does not detect a failure according to which the diode connected is not conducting, a motor is driven using the switching element paired with the faulty switching element and the switching elements of the other phase. When the failure detection unit detects the failure according to which the switching element of the phase C upper stage is not conducting, and detect the failure according to which the diode connected is not conducting, the switching element paired with the faulty switching element is maintained in an off state, and each of the switching elements of the other phase is on/off controlled.
摘要翻译： 电动机驱动装置包括检测逆变器电路的开关元件和二极管的故障的故障检测器。 当故障检测单元检测到相C的上级的开关元件不导通但不检测到所连接的二极管不导通的故障的故障时，使用与 故障开关元件和另一相的开关元件。 当故障检测单元检测出相位C上级的开关元件不导通的故障，并且检测连接的二极管不导通的故障时，与故障开关元件配对的开关元件被保持在 关闭状态，另一方的各开关元件的开/关控制。
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公开(公告)号：US20200247459A1
公开(公告)日：2020-08-06
申请号：US16782619
申请日：2020-02-05
申请人： Hiromi Murata
发明人： Hiromi Murata
IPC分类号： B62D5/04
摘要： A control device includes a first system and a second system being a redundant system for the first system, and controls a device to be controlled. The control device includes a first abnormality detector detecting abnormality of a first-system circuit constituting the first system, and a second abnormality detector detecting abnormality of a second-system circuit constituting the second system. The first abnormality detector detects existence of abnormality of the first-system circuit by comparing the detected value of a first predetermined part of the first-system circuit with a first threshold. The second abnormality detector detects existence of abnormality of the second-system circuit by comparing the detected value of a second predetermined part in the second-system circuit corresponding to the first predetermined part, with a second threshold different from the first threshold.
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