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1. 发明授权

US11239786B2 Motor control device 有权
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.

2. 发明申请

US20070211396A1 Ground fault detection device for motor driving circuit 有权
标题翻译：电机驱动电路接地故障检测装置
公开(公告)号：US20070211396A1
公开(公告)日：2007-09-13
申请号：US11711598
申请日：2007-02-27
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02H7/08
CPC分类号： H02H7/0838 , B62D5/0487 , G01R31/025 , H02H3/165 , H02P29/0241
摘要： A motor driving circuit includes an inverter circuit including switching devices connected in a bridge manner, electric-current detection resistances connected between the lower switching devices in the inverter circuit and the ground, so as to enable detection of the phase currents with the electric-current detection resistances, a PWM circuit which controls ON/OFF of the switching devices and repeatedly causes powering and regenerative time intervals, by alternately turning on and off the upper switching devices and the lower switching devices. During a time interval during which the lower switching devices, the electric-current detection resistances and the motor constitute a closed circuit and a regenerated electric current flows through the circuit, when the electric current values detected are equal to or greater than a predetermined electric current value, it is determined that a ground fault has occurred in the connection lines between the inverter circuit and the motor.
摘要翻译：电动机驱动电路包括逆变器电路，其包括以桥式连接的开关装置，连接在逆变器电路中的下开关器件与地之间的电流检测电阻，以便能够利用电流检测相电流检测电阻，PWM电路，其通过交替打开和关闭上部开关装置和下部开关装置来控制开关装置的接通/断开并重复地产生供电和再生时间间隔。在检测到的电流值等于或大于预定电流的时间间隔期间，下部开关装置，电流检测电阻和电动机构成闭合电路并且再生的电流流过电路，值，确定在逆变器电路和电动机之间的连接线路中已经发生接地故障。

3. 发明授权

US07948205B2 Multi-phase AC motor driving device 有权
标题翻译：多相交流电动机驱动装置
公开(公告)号：US07948205B2
公开(公告)日：2011-05-24
申请号：US12206340
申请日：2008-09-08
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02P27/04
CPC分类号： H02P29/0241
摘要： A multi-phase AC motor driving device in which occurrence of failure is not erroneously determined is provided. In a multi-phase AC motor driving device including an inverter circuit; current detecting resistances Ru, Rv, and Rw, respectively arranged on lower arm of the respective phase of the inverter circuit, for detecting phase current of the motor; and a control portion and a PWM circuit for controlling ON/OFF operation of switching devices of the inverter circuit, the determination on the occurrence of failure based on the current values detected by the current detecting resistances is not made if the ON-duty ratios of the switching devices on the upper arms of the inverter circuit are not smaller than a predetermined value.
摘要翻译：提供了不会错误地发生故障的多相交流电动机驱动装置。在包括逆变器电路的多相交流电动机驱动装置中，分别布置在逆变器电路的各相的下臂上的电流检测电阻Ru，Rv和Rw，用于检测电动机的相电流; 以及用于控制逆变器电路的开关装置的接通/断开操作的控制部分和PWM电路，如果根据由电流检测电阻检测到的电流值的故障发生的确定，则不进行ON 逆变器电路的上臂上的开关器件不小于预定值。

4. 发明授权

US07586285B2 Ground fault detection device for motor driving circuit 有权
标题翻译：电机驱动电路接地故障检测装置
公开(公告)号：US07586285B2
公开(公告)日：2009-09-08
申请号：US11711598
申请日：2007-02-27
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02P3/18
CPC分类号： H02H7/0838 , B62D5/0487 , G01R31/025 , H02H3/165 , H02P29/0241
摘要： A motor driving circuit includes an inverter circuit including switching devices connected in a bridge manner, electric-current detection resistances connected between the lower switching devices in the inverter circuit and the ground, so as to enable detection of the phase currents with the electric-current detection resistances, a PWM circuit which controls ON/OFF of the switching devices and repeatedly causes powering and regenerative time intervals, by alternately turning on and off the upper switching devices and the lower switching devices. During a time interval during which the lower switching devices, the electric-current detection resistances and the motor constitute a closed circuit and a regenerated electric current flows through the circuit, when the electric current values detected are equal to or greater than a predetermined electric current value, it is determined that a ground fault has occurred in the connection lines between the inverter circuit and the motor.
摘要翻译：电动机驱动电路包括逆变器电路，其包括以桥式连接的开关装置，连接在逆变器电路中的下开关器件与地之间的电流检测电阻，以便能够利用电流检测相电流检测电阻，PWM电路，其通过交替打开和关闭上部开关装置和下部开关装置来控制开关装置的接通/断开并重复地引起供电和再生时间间隔。在检测到的电流值等于或大于预定电流的时间间隔期间，下部开关装置，电流检测电阻和电动机构成闭合电路并且再生的电流流过电路，值，确定在逆变器电路和电动机之间的连接线路中已经发生接地故障。

5. 发明申请

US20090073617A1 MULTI-PHASE AC MOTOR DRIVING DEVICE 有权
标题翻译：多相交流电动机驱动装置
公开(公告)号：US20090073617A1
公开(公告)日：2009-03-19
申请号：US12206340
申请日：2008-09-08
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02H7/08
CPC分类号： H02P29/0241
摘要： A multi-phase AC motor driving device in which occurrence of failure is not erroneously determined is provided. In a multi-phase AC motor driving device including an inverter circuit; current detecting resistances Ru, Rv, and Rw, respectively arranged on lower arm of the respective phase of the inverter circuit, for detecting phase current of the motor; and a control portion and a PWM circuit for controlling ON/OFF operation of switching devices of the inverter circuit, the determination on the occurrence of failure based on the current values detected by the current detecting resistances is not made if the ON-duty ratios of the switching devices on the upper arms of the inverter circuit are not smaller than a predetermined value.
摘要翻译：提供了不会错误地发生故障的多相交流电动机驱动装置。在包括逆变器电路的多相交流电动机驱动装置中，分别布置在逆变器电路的各相的下臂上的电流检测电阻Ru，Rv和Rw，用于检测电动机的相电流; 以及用于控制逆变器电路的开关装置的接通/断开操作的控制部分和PWM电路，如果根据由电流检测电阻检测到的电流值的故障发生的确定，则不进行ON 逆变器电路的上臂上的开关器件不小于预定值。

6. 发明授权

US08384336B2 Multiphase motor driving device 有权
标题翻译：多相电机驱动装置
公开(公告)号：US08384336B2
公开(公告)日：2013-02-26
申请号：US12567030
申请日：2009-09-25
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02P27/04
CPC分类号： H02P27/08 , H02M1/32 , H02M1/38
摘要： A multiphase motor driving device has an inverter circuit. The inverter circuit includes a pair of upper and lower switching elements, a shunt resistor for phase current detection, and a voltage for driving a multiphase motor. The device includes a determination unit for shifting a detection timing of the current flowing to the shunt resistor from the OFF period to the ON period of the switching element on the upper side in the phase. The determination unit determines whether or not ON failure occurs based on the current flowing to the shunt resistor of the phase in the ON period. The device has a current value estimation unit for estimating a current value of the phase in a case where the detection timing is shifted based on currents flowing to the shunt resistors of other phases.
摘要翻译：多相电动机驱动装置具有逆变器电路。逆变器电路包括一对上下开关元件，用于相电流检测的分流电阻器和用于驱动多相电机的电压。该装置包括：确定单元，用于将流入分流电阻器的电流的检测定时从该相位上侧的开关元件的截止周期移动到导通周期。确定单元基于在ON周期中流向相位的分流电阻器的电流来确定是否发生ON故障。该装置具有电流值估计单元，用于在检测定时基于流向其它相的分流电阻器的电流而移位的情况下估计相位的当前值。

7. 发明授权

US08013564B2 Multi-phase AC motor driving device 有权
标题翻译：多相交流电动机驱动装置
公开(公告)号：US08013564B2
公开(公告)日：2011-09-06
申请号：US12206260
申请日：2008-09-08
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02P27/04
CPC分类号： B62D5/0487
摘要： A multi-phase AC motor driving device in which occurrence of failure is not erroneously determined is provided. In a multi-phase AC motor driving device including an inverter circuit; current detecting resistances Ru, Rv, and Rw, respectively arranged on lower arm of the respective phase of the inverter circuit, for detecting phase current of the motor; and a control portion and a PWM circuit for controlling ON/OFF operation of switching devices of the inverter circuit, the determination on the occurrence of failure based on the current values detected by the current detecting resistances is not made if relays connected between the inverter circuit and the motor are turned ON and all the switching devices of the lower arms of the respective phases are turned OFF.
摘要翻译：提供了不会错误地发生故障的多相交流电动机驱动装置。在包括逆变器电路的多相交流电动机驱动装置中，分别布置在逆变器电路的各相的下臂上的电流检测电阻Ru，Rv和Rw，用于检测电动机的相电流; 以及用于控制逆变器电路的开关装置的接通/断开操作的控制部分和PWM电路，如果连接在逆变器电路之间的继电器，则不进行基于由电流检测电阻检测的电流值的故障发生的确定并且电动机被接通，并且各相的下臂的所有开关装置都被断开。

8. 发明授权

US07589940B2 Voltage boosting circuit and electricity-driven power steering device 失效
标题翻译：升压电路和电动助力转向装置
公开(公告)号：US07589940B2
公开(公告)日：2009-09-15
申请号：US11385974
申请日：2006-03-21
申请人： Takamoto Sawano , Keita Gunji
发明人： Takamoto Sawano , Keita Gunji
IPC分类号： H02H7/08 , H02H9/00
CPC分类号： B62D5/0484 , B62D5/046
摘要： A switching device of a chopper circuit is interrupted from a switching circuit when the switching device has a breakdown, whereby power source input is directly output without being boosted by chopper operation. A motor controller provided to ECU of an electrically-driven power steering device is equipped with a chopper circuit for carrying out a voltage boosting operation, a detection circuit for detecting a failure of a first switching device TR1 in the chopper circuit, and an interrupting relay switch. A controller carries out ON/OFF control on the first switching device, and when the detection circuit detects the failure of the switching device, the controller turns off the interrupting relay switch, and separates the first switching device from the chopper circuit. At this time, the battery voltage Vin is output as an output voltage Vout without being boosted by the chopper circuit.
摘要翻译：当开关器件发生故障时，斩波电路的开关器件从开关电路中断，从而电源输入直接输出而不被斩波器操作升压。提供给电动动力转向装置的ECU的电动机控制器配备有用于进行升压动作的斩波电路，检测斩波电路中的第一开关装置TR1的故障的检测电路以及中断继电器开关。控制器对第一开关装置执行ON / OFF控制，并且当检测电路检测到开关装置的故障时，控制器关断中断继电器开关，并将第一开关装置与斩波电路分离。此时，电池电压Vin作为输出电压Vout输出，而不被斩波电路升压。

9. 发明授权

US5289116A Apparatus and method for testing electronic devices 失效
标题翻译：用于测试电子设备的装置和方法
公开(公告)号：US5289116A
公开(公告)日：1994-02-22
申请号：US952469
申请日：1992-09-28
申请人： Jun Kurita , Kiyoyasu Hiwada , Nobuyuki Kasuga , Yoichiro Yamada , Shigeru Kuwano , Keita Gunji , Tomoya Yamazaki
发明人： Jun Kurita , Kiyoyasu Hiwada , Nobuyuki Kasuga , Yoichiro Yamada , Shigeru Kuwano , Keita Gunji , Tomoya Yamazaki
IPC分类号： G01R31/3167 , G01R31/319 , G01R31/3193 , G01R31/28
CPC分类号： G01R31/3167 , G01R31/31922 , G01R31/3193
摘要： An apparatus 1 for testing mixed signal electronic devices (i.e., devices, such as LSI devices, whose input/output signals include direct current signals, digital signals and analog signals, where the time relationship between the various input and output signals may be either synchronous or asynchronous) includes a master clock subsystem (MCLK-SS) 11, a subsystem group comprised of a digital master subsystem (DM-SS) 12, a digital slave subsystem (DS-SS) 13, a waveform generator subsystem (WG-SS) 14, a waveform digitizer subsystem (WD-SS) 15, a time measuring module (TMM) 16, and a direct current subsystem (DC-SS) 17, and an interfacing test head 18. The MCLK-SS 11 receives a master clock from a timing generator 21 or DSP 23 of the device under test (DUT) 186 and generates a first master clock MCLK1 and a second master clock MCLK2, each of which is synchronized with the master clock from the DUT. A reference clock generator 111, which receives the output of the buffer 181, supplies a standard clock to the first and second clock generators 112, 113, which in turn generate the first and second master clock signals.
摘要翻译：一种用于测试混合信号电子装置（即诸如LSI装置的装置，其输入/输出信号包括直流信号，数字信号和模拟信号的装置1），其中各种输入和输出信号之间的时间关系可以是同步的或异步）包括主时钟子系统（MCLK-SS）11，由数字主子系统（DM-SS）12，数字从属子系统（DS-SS）13，波形发生器子系统（WG-SS））14，波形数字化器子系统（WD-SS）15，时间测量模块（TMM）16和直流子系统（DC-SS）17以及接口测试头18.MCLK-SS11接收主机来自被测器件（DUT）186的定时发生器21或DSP 23的时钟，并且产生第一主时钟MCLK1和第二主时钟MCLK2，其中每一个与来自DUT的主时钟同步。接收缓冲器181的输出的参考时钟发生器111将标准时钟提供给第一和第二时钟发生器112,113，第一和第二时钟发生器112,113又产生第一和第二主时钟信号。

10. 发明申请

US20100117574A1 MULTIPHASE MOTOR DRIVING DEVICE 有权
标题翻译：多相电动机驱动装置
公开(公告)号：US20100117574A1
公开(公告)日：2010-05-13
申请号：US12567030
申请日：2009-09-25
申请人： Keita Gunji
发明人： Keita Gunji
IPC分类号： H02P23/00
CPC分类号： H02P27/08 , H02M1/32 , H02M1/38
摘要： A multiphase motor driving device has an inverter circuit. The inverter circuit includes a pair of upper and lower switching elements, a shunt resistor for phase current detection, and a voltage for driving a multiphase motor. The device includes a determination unit for shifting a detection timing of the current flowing to the shunt resistor from the OFF period to the ON period of the switching element on the upper side in the phase. The determination unit determines whether or not ON failure occurs based on the current flowing to the shunt resistor of the phase in the ON period. The device has a current value estimation unit for estimating a current value of the phase in a case where the detection timing is shifted based on currents flowing to the shunt resistors of other phases.
摘要翻译：多相电动机驱动装置具有逆变器电路。逆变器电路包括一对上下开关元件，用于相电流检测的分流电阻器和用于驱动多相电机的电压。该装置包括：确定单元，用于将流入分流电阻器的电流的检测定时从该相位上侧的开关元件的截止周期移动到导通周期。确定单元基于在ON周期中流向相位的分流电阻器的电流来确定是否发生ON故障。该装置具有电流值估计单元，用于在检测定时基于流向其它相的分流电阻器的电流而移位的情况下估计相位的当前值。

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