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    Drive apparatus and automobile
    2.
    发明授权
    Drive apparatus and automobile 有权

    公开(公告)号：US10279802B2

    公开(公告)日：2019-05-07

    申请号：US15708342

    申请日：2017-09-19

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kiyotaka Matsubara ,  Kenji Yamada ,  Toshihiro Yamamoto

    IPC: B60W20/40 ,  H02P6/04 ,  H02P6/28 ,  B60W10/06 ,  B60W10/08 ,  H02P27/08 ,  B60K6/445 ,  B60L11/02 ,  B60W20/17

    Abstract: As a control of an inverter, a first pulse width modulation control switches a plurality of switching elements by generating a first pulse width modulation signal of the switching elements, and a second pulse width modulation control switches the switching elements by generating a second pulse width modulation signal of the switching elements based on a voltage modulation rate, a voltage phase, and the number of pulses per unit cycle of an electrical angle of the motor based on the torque command and has a smaller number of switchings of the switching elements than the first pulse width modulation control. The first pulse width modulation control and the second pulse width modulation control are executed in a switched manner. Execution of the second pulse width modulation control as the control of the inverter is restricted when the quietness is needed, compared with when the quietness is not needed.

    Vehicle and control method for vehicle
    3.
    发明授权
    Vehicle and control method for vehicle 有权

    公开(公告)号：US10093199B2

    公开(公告)日：2018-10-09

    申请号：US15495171

    申请日：2017-04-24

    Applicant: Toyota Jidosha Kabushiki Kaisha

    Inventor： Toshihiro Yamamoto ,  Kenji Yamada

    IPC: B60L15/00 ,  B60L11/18 ,  B60L15/08 ,  H02P27/08

    Abstract: When an absolute value of a rotation speed change rate of a motor is equal to or less than a threshold and an absolute value of a torque command change rate of the motor is equal to or less than a threshold, a switching angle is changed by cyclically changing a pulse type or the number of pulses as change in a pulse pattern. With this, respective order components of harmonics are dispersed, whereby it is possible to reduce the degree of prominence of a specific order component in harmonics relative to other order components.

    Vehicle with controller for performing pulse width modulation control
    4.
    发明授权
    Vehicle with controller for performing pulse width modulation control 有权

    公开(公告)号：US10103656B2

    公开(公告)日：2018-10-16

    申请号：US15496236

    申请日：2017-04-25

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Toshihiro Yamamoto ,  Kenji Yamada

    IPC: H02P6/15 ,  B60L11/18 ,  H02P6/08 ,  H02P27/08 ,  H02M7/5395

    Abstract: A vehicle performs first PWM control of generating a first PWM signal of a plurality of switching elements to switch the plurality of switching elements by comparing voltage commands of phases based on a torque command with a carrier voltage when a target operating point including a rotation speed and the torque command of the motor is outside a predetermined area, and selects and performs second PWM control of generating a second PWM signal of the plurality of switching elements to switch the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor or the first PWM control when the target operating point is inside the predetermined area.

    VEHICLE
    7.
    发明申请
    VEHICLE 审中-公开

    公开(公告)号：US20170313197A1

    公开(公告)日：2017-11-02

    申请号：US15493254

    申请日：2017-04-21

    Applicant: Toyota Jidosha Kabushiki Kaisha

    Inventor： Kenji Yamada ,  Toshihiro Yamamoto ,  Masashi Mizuno

    IPC: B60L11/18 ,  H02P27/08 ,  H02M7/5387 ,  H02M1/32 ,  H02P29/024 ,  H02M1/088 ,  H02M1/00

    CPC classification number: B60L11/1803 ,  H02M1/088 ,  H02M1/32 ,  H02M7/53871 ,  H02M2001/0009 ,  H02M2001/325 ,  H02P27/085 ,  H02P29/024

    Abstract: A vehicle includes an electronic control unit configured to perform control of an inverter by switching a plurality of controls including: first PWM control of generating a first PWM signal of a plurality of switching elements by comparison of voltage commands of respective phases based on a torque command of a motor with a carrier voltage and switching the plurality of switching elements; and second PWM control of generating a second PWM signal of the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses in a predetermined period of an electrical angle of the motor and switching the plurality of switching elements. The electronic control unit is configured to limit execution of the second PWM control when an abnormality occurs in at least one of the current sensor or the voltage sensor.

    Driving system
    8.
    发明授权
    Driving system 有权

    公开(公告)号：US11152884B2

    公开(公告)日：2021-10-19

    申请号：US16811203

    申请日：2020-03-06

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Toshihiro Yamamoto ,  Hiroyuki Oyanagi

    IPC: H02P27/08 ,  H02M1/38 ,  H02M7/5387

    Abstract: An object is to suppress an increase in current variation amount of a power storage device. A control device sets an allowable modulation factor, based on a circuit characteristic of a DC part that is on a power storage device side of an inverter, such that a current variation amount of the power storage device becomes equal to or smaller than an allowable current variation amount, and sets switching pattern commands of a plurality of switching elements, based on a set allowable modulation factor.

    Drive device and drive system
    9.
    发明授权
    Drive device and drive system 有权

    公开(公告)号：US10396698B2

    公开(公告)日：2019-08-27

    申请号：US15947963

    申请日：2018-04-09

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Toshihiro Yamamoto ,  Kenji Yamada

    IPC: H02P6/14 ,  H02P27/08 ,  H02P6/08 ,  H02M7/5395 ,  H02M1/12 ,  H02M1/44 ,  B60L50/51 ,  H02M1/00

    Abstract: First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing switching of the plurality of switching elements. Second pulse width modulation control is a control of generating a second pulse width modulation signal for the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses per unit period of an electrical angle of the motor, and performing switching of the plurality of switching elements. An electronic control unit is configured to switch the plurality of switching elements between the first pulse width modulation control and the second pulse width modulation control at irregular time intervals.

    Driving device
    10.
    发明授权
    Driving device 有权

    公开(公告)号：US10374539B2

    公开(公告)日：2019-08-06

    申请号：US15907596

    申请日：2018-02-28

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Toshihiro Yamamoto ,  Kenji Yamada

    IPC: H02P21/00 ,  H02P21/13 ,  B60L15/00 ,  B60L15/08 ,  H02P21/22 ,  H02P27/12 ,  H02P21/14 ,  H02P29/50 ,  B60L50/50

    Abstract: A driving device includes a motor, an inverter configured to drive the motor by switching a plurality of switching elements, and an electronic control unit configured to set voltage commands of phases according to temporary voltage commands of the phases based on a torque command of the motor and perform switching control of the switching elements by generating PWM signals for the switching elements by using the voltage commands of the phases and a carrier voltage. The electronic control unit is configured to switch a method of setting the voltage commands between a first method and a second method for each irregular time interval. The first method is a method of setting the voltage commands without superposing harmonics to the temporary voltage commands, and the second method is a method of setting the voltage commands by superposing the harmonics to the temporary voltage command.

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