公开(公告)号：US11424670B2

公开(公告)日：2022-08-23

申请号：US17188284

申请日：2021-03-01

Applicant: DENSO CORPORATION

Inventor： Koichi Nishibata

IPC: H02M1/08 ,  H02M3/158 ,  H02M7/5387 ,  H03K17/16 ,  H02M1/00 ,  H02P27/08

Abstract: A drive device performs switching of at least one switch configuring an electrical power converter. The drive device includes a control section that generates a drive signal for the switch and transmits the drive signal, and at least one drive circuit that receives the transmitted drive signal. The control section generates speed adjustment information for adjusting a switching speed of the switch and transmits the speed adjustment information to the drive circuit. The drive circuit includes a speed calculation section that receives the transmitted speed adjustment information and calculates command switching speed information of the switch based on the received speed adjustment information, and a drive section that performs switching of the switch based on the received drive signal and the calculated command switching speed information.

公开(公告)号：US11387766B2

公开(公告)日：2022-07-12

申请号：US16395323

申请日：2019-04-26

Applicant: DENSO CORPORATION

Inventor： Koichi Nishibata

IPC: H02P29/024 ,  H02P27/06 ,  H02M1/08 ,  H02M7/5387 ,  H02M1/00

Abstract: A control circuit for an electric power converter includes an abnormality determiner, a voltage determiner and an abnormality-handling controller. The abnormality determiner determines whether an abnormality has occurred in at least one of the electric power converter and a multi-phase rotating electric machine. The voltage determiner determines whether a line-to-line voltage between phase windings of the rotating electric machine is higher than a voltage of a DC power source. The abnormality-handling controller performs, when it is determined by the abnormality determiner that an abnormality has occurred and it is determined by the voltage determiner that the line-to-line voltage is higher than the voltage of the DC power source, an all-phase short circuit control of turning on all of switches of one of an upper-arm switch group and a lower-arm switch group and turning off all of switches of the other of the upper-arm switch group and the lower-arm switch group.

公开(公告)号：US09742324B2

公开(公告)日：2017-08-22

申请号：US15016923

申请日：2016-02-05

Applicant: DENSO CORPORATION

Inventor： Junichi Fukuta ,  Koichi Nishibata ,  Hiroya Tsuji ,  Yusuke Shindo ,  Shinichiro Nakata ,  Yasutaka Senda

IPC: H02H7/08 ,  H02P6/16 ,  H02P29/028

CPC classification number: H02P6/16 ,  H02P29/028 ,  H02P29/032

Abstract: In an integrated circuit formed into a single chip, a drive signal generating unit generates drive signals for switching elements of a power conversion circuit. A monitoring unit monitors a microcomputer that calculates generation information that is information used to generate the drive signals, and determines whether or not an abnormality has occurred in the microcomputer. An angle converting unit converts an output signal of an angle sensor to rotation angle information of a rotating electric machine. A drive signal generating unit generates the drive signals for controlling driving of the rotating electric machine based on the generation information and the rotation angle information when the monitoring unit determines that an abnormality has not occurred in the microcomputer, and generates the drive signals based on the rotation angle information, without using the generation information, when the monitoring unit determines that an abnormality has occurred in the microcomputer.

公开(公告)号：US09325274B2

公开(公告)日：2016-04-26

申请号：US14330393

申请日：2014-07-14

Applicant: DENSO CORPORATION

Inventor： Koichi Nishibata

IPC: H02P6/12 ,  B23Q35/00 ,  H02P29/00 ,  H02P21/14 ,  H02M7/5387

CPC classification number: H02P29/0038 ,  H02M7/53875 ,  H02P21/14 ,  H02P29/50

Abstract: In an apparatus for controlling a variable of a rotary machine based on an AC voltage supplied to the rotary machine via a switching element of a power converter, a generator generates a drive signal including an on-off pattern of the switching element. A driver drives, based on the on-off pattern of the drive signal, the switching element. A parameter monitor monitors a parameter indicative of change of a harmonic current flowing in the rotary machine based on a harmonic voltage included in the AC voltage. A limiter limits, based on the parameter monitored by the parameter detector, generation of the drive signal by the generator to limit an increase of a level of the harmonic current.

Abstract translation: 在通过功率转换器的开关元件基于提供给旋转机器的AC电压来控制旋转机器的变量的装置中，发电机产生包括开关元件的开 - 关模式的驱动信号。 驱动器基于驱动信号的开 - 关模式驱动开关元件。 参数监视器基于包括在AC电压中的谐波电压监视指示在旋转机器中流动的谐波电流的变化的参数。 限制器基于由参数检测器监测的参数限制发电机产生的驱动信号，以限制谐波电流电平的增加。

公开(公告)号：US10374509B2

公开(公告)日：2019-08-06

申请号：US16194903

申请日：2018-11-19

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koichi Nishibata ,  Yusuke Shindo ,  Tomohisa Ose ,  Junichi Fukuta ,  Yasuhiro Terao ,  Eiichiro Shigehara ,  Keisuke Hata

IPC: H02M1/32 ,  H02H7/122 ,  H02P27/06 ,  H02P29/024 ,  H02H1/00 ,  H02M7/5387

Abstract: In a control circuit for controlling a power converter that includes a switch, a power supply circuit outputs electrical power, and a command generator generates a switching command that controls switching operations of the switch, based on the electrical power output from the power supply circuit. A failure mode determiner executes a determination of whether which of failure modes has occurred in the power supply circuit, and outputs a result of the determination. A switch controller selectively executes, based on the result of the determination, a first switch control task and a second switch control task. The first switch control task forcibly shuts down the switch independently of the switching command, and the second switch control task enables the switching operations of the switch to be continuously controlled based on the switching command.

公开(公告)号：US09716452B2

公开(公告)日：2017-07-25

申请号：US15092719

申请日：2016-04-07

Applicant: DENSO CORPORATION

Inventor： Koichi Nishibata ,  Junichi Fukuta ,  Yusuke Shindo

IPC: H02P6/16 ,  G01D5/20

CPC classification number: H02P6/16 ,  G01D5/2073 ,  H02P2203/00

Abstract: An ECU has a function of calculating a rotation angle, which is used for torque control, based on amplitude-modulated signals SIN and COS outputted from an angle sensor and a synchronous detection signal. Frequency components generated at the time of switching operation of switching elements of an inverter connected to a motor-generator is included in an output voltage of the inverter. The ECU has a function of shifting frequencies of the frequency components and an excitation frequency of an excitation signal from each other so that noise having the frequencies of the frequency components are not superimposed on the amplitude-modulated signals SIN and COS.

公开(公告)号：US09413278B2

公开(公告)日：2016-08-09

申请号：US13932373

申请日：2013-07-01

Applicant: DENSO CORPORATION

Inventor： Koichi Nishibata ,  Hiroya Tsuji ,  Hajime Uematsu

IPC: H02P6/10 ,  H02P21/05 ,  B60L11/14 ,  B60L15/00 ,  B60L15/02 ,  B60L15/20

CPC classification number: H02P6/10 ,  B60L11/14 ,  B60L15/007 ,  B60L15/025 ,  B60L15/2054 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/443 ,  B60L2240/486 ,  B60L2240/507 ,  H02P21/05 ,  H02P21/20 ,  H02P2205/05 ,  Y02T10/643 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275

Abstract: A control device for a rotating electrical machine is provided that is capable of suppressing reduction in controllability of torque attributed to harmonic currents. According to the exemplary embodiment of the present invention, a designated torque value Trq* designated by a hybrid vehicle electronic control unit (HVECU) is corrected by a compensation amount ΔTrq calculated using a harmonic voltage Vh, the designated torque value Trq*, and an electric angular velocity ω as inputs. An operating signal generating section generates an operating signal g¥# using a designated norm value Vn set based on the corrected torque designated value Trq* and a phase δ serving as a manipulated variable for performing feedback control of an estimated torque to the designated torque value Trq*, and outputs the generated operating signal g¥# to a power supply circuit of a motor generator.

Abstract translation: 提供一种旋转电机的控制装置，其能够抑制归因于谐波电流的转矩的控制性的降低。 根据本发明的示例性实施例，由混合动力车辆电子控制单元（HVECU）指定的指定转矩值Trq *通过使用谐波电压Vh，指定转矩值Trq *计算的补偿量ΔTrq和 电角速度ω作为输入。 操作信号生成部使用基于修正转矩指定值Trq *设定的规定范围值Vn和作为操作量的相位δ来生成运算信号g¥＃，用于对所指定的转矩值进行估计转矩的反馈控制 Trq *，并将生成的运算信号g¥＃输出到电动发电机的电源电路。