公开(公告)号：US10910980B2

公开(公告)日：2021-02-02

申请号：US15722198

申请日：2017-10-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Tokyo University of Science Foundation

Inventor： Junichi Deguchi ,  Makoto Funahashi ,  Kensuke Yoshizue ,  Nobukazu Hoshi ,  Tomoya Abe ,  Yusuke Kobayashi ,  Yosuke Murakami

IPC: H02P25/08 ,  H02K37/02 ,  H02P25/092 ,  H02P3/06 ,  H02P25/098 ,  H02K1/24 ,  H02K5/04 ,  H02K19/10

Abstract: In a control device for a switched reluctance motor, a voltage drop control is executed in which a voltage dropped to be lower than a voltage applied in a case where the switched reluctance motor is driven in a high-load region is applied to the switched reluctance motor, in a case where the switched reluctance motor is driven in a low-load region. The low-load region is a lower load region than the high-load region.

公开(公告)号：US10110153B2

公开(公告)日：2018-10-23

申请号：US15673517

申请日：2017-08-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi Deguchi ,  Makoto Funahashi ,  Kensuke Yoshizue

IPC: G01R31/34 ,  H02K3/28 ,  H02K7/14 ,  H02P25/083 ,  H02P25/092 ,  H02P6/08

Abstract: An electronic control unit switches a switching circuit such that a switched reluctance motor has a first winding pattern, when, with respect to a boundary dividing a driving range of the switched reluctance motor into two ranges, a torque and a rotational speed of the switched reluctance motor that are determined according to an applied voltage are located in the first range on the low load side. The electronic control unit switches the switching circuit such that the switched reluctance motor has a second winding pattern, when the torque and the rotational speed of the switched reluctance motor are located in a second range different from the first range.

公开(公告)号：US11708885B2

公开(公告)日：2023-07-25

申请号：US17227692

申请日：2021-04-12

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kensuke Yoshizue

IPC: F16H55/17 ,  F16H55/08

CPC classification number: F16H55/17 ,  F16H55/08 ,  F16H2055/0866

Abstract: A drive device includes: a motor; and a power transmission device that transmits power of the motor to a wheel. Further, in the power transmission device has a meshing portion in which a meshing tooth that is formed on an input-side rotation member and a meshing tooth that is formed on an output-side rotation member mesh with each other on a power transmission path between the motor and the wheel, the meshing tooth has a driving-side teeth surface that makes contact for transmission of power from the motor to the wheel and a non-driving-side teeth surface that makes contact for transmission of power from the wheel to the motor, and in the meshing tooth, a tooth root of the driving-side teeth surface has a higher breaking strength than a tooth root of the non-driving-side teeth surface.

公开(公告)号：US10418867B2

公开(公告)日：2019-09-17

申请号：US15315483

申请日：2015-06-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kensuke Yoshizue ,  Kazuya Arakawa ,  Junichi Deguchi ,  Masahide Uemura

IPC: H02K1/18 ,  H02K19/10

Abstract: A switched reluctance motor include: a stator; a case in which the stator is accommodated; a rotor disposed inward of the stator in the radial direction of the switched reluctance motor; and a holding member fixed to the case. The holding member is configured to hold the stator with the stator spaced apart from an inner peripheral surface of the case. The holding member includes a holding portion and a fixed portion. The holding portion is configured to hold the stator from the outside in the radial direction. The holding portion is spaced apart from the inner peripheral surface of the case. The fixed portion is fixed to the case.

公开(公告)号：US11124231B2

公开(公告)日：2021-09-21

申请号：US16535308

申请日：2019-08-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshihiko Hiroe ,  Masaki Okamura ,  Kensuke Yoshizue

IPC: B62D7/14 ,  B60Q1/34 ,  B60Q1/50

Abstract: Provided is a vehicle including a plurality of wheels, a steering device, and a direction indication system. The steering device is configured to steer the wheels at least either to such a first steering angle that the vehicle travels straight in a direction intersecting the front-rear direction or to such a second steering angle that the vehicle rotates around a vertical axis passing through a central portion of the vehicle body. The direction indication system is configured to, when the steering device steers the wheels to either the first steering angle or the second steering angle, indicate toward the outside of the vehicle body that the vehicle is going to travel straight in a direction intersecting the front-rear direction or that the vehicle is going to rotate around the vertical axis passing through the central portion of the vehicle body.

公开(公告)号：US09641118B2

公开(公告)日：2017-05-02

申请号：US14993510

申请日：2016-01-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi Deguchi ,  Kazuya Arakawa ,  Kensuke Yoshizue

IPC: H02P25/08 ,  H02P25/086 ,  B60L3/00 ,  B60L3/06 ,  B60L11/12 ,  B60L11/14 ,  B60L15/20 ,  H02P25/092

CPC classification number: H02P25/086 ,  B60L3/0061 ,  B60L3/06 ,  B60L11/123 ,  B60L11/14 ,  B60L15/2072 ,  B60L15/2081 ,  B60L2240/12 ,  B60L2240/32 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/429 ,  B60L2240/642 ,  B60L2240/80 ,  B60L2260/28 ,  H02P25/0925 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7275 ,  Y02T10/7291 ,  Y02T90/16

Abstract: A vehicular control apparatus that includes a switched reluctance motor and an electronic control unit is provided. The switched reluctance motor has a rotor and a stator and is mounted as a travel drive source in a vehicle. The electronic control unit executes current control of the switched reluctance motor. The electronic control unit executes first current control for causing the rotor to rotate in a reverse direction from a rotational direction in which the vehicle is started in the case where the vehicle is not started even when the switched reluctance motor outputs maximum torque within an allowable range, and executes control for causing the rotor to rotate in the rotational direction in which the vehicle is started after the rotor rotates in the reverse direction by the first current control to a rotation position at which torque for enabling a start of the vehicle can be output.

公开(公告)号：US20210324951A1

公开(公告)日：2021-10-21

申请号：US17227692

申请日：2021-04-12

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kensuke Yoshizue

IPC: F16H55/17 ,  F16H55/08

Abstract: A drive device includes: a motor; and a power transmission device that transmits power of the motor to a wheel. Further, in the power transmission device has a meshing portion in which a meshing tooth that is formed on an input-side rotation member and a meshing tooth that is formed on an output-side rotation member mesh with each other on a power transmission path between the motor and the wheel, the meshing tooth has a driving-side teeth surface that makes contact for transmission of power from the motor to the wheel and a non-driving-side teeth surface that makes contact for transmission of power from the wheel to the motor, and in the meshing tooth, a tooth root of the driving-side teeth surface has a higher breaking strength than a tooth root of the non-driving-side teeth surface.

公开(公告)号：US10483897B2

公开(公告)日：2019-11-19

申请号：US15957273

申请日：2018-04-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Tokyo University of Science Foundation

Inventor： Junichi Deguchi ,  Takahiro Shiina ,  Kensuke Yoshizue ,  Nobukazu Hoshi ,  Yusuke Kobayashi ,  Yosuke Murakami ,  Tomoya Abe

IPC: H02P25/08 ,  H02P25/098 ,  H02P25/086

Abstract: A switched reluctance motor system includes a switched reluctance motor, a rotor including a plurality of salient poles, a stator including a plurality of salient poles, coils of three phases wound around the salient poles of the stator, and an electronic control unit. The electronic control unit is configured to drive the switched reluctance motor in a pole configuration pattern of NSNSNS in which the salient poles of the stator that have different polarities are alternately arranged. The electronic control unit is configured to perform current waveform control when an excitation sound frequency of a given order coincides with a resonance frequency of the switched reluctance motor.

公开(公告)号：US10056859B2

公开(公告)日：2018-08-21

申请号：US15800785

申请日：2017-11-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi Deguchi ,  Takahiro Shiina ,  Kensuke Yoshizue

IPC: H02P6/00 ,  H02P25/098 ,  H02P25/08 ,  H02P6/10 ,  H02P6/18 ,  H02P27/06 ,  H02P6/28 ,  H02P25/092 ,  H02P6/16

CPC classification number: H02P25/098 ,  H02P6/10 ,  H02P6/16 ,  H02P6/181 ,  H02P6/28 ,  H02P25/0805 ,  H02P25/092 ,  H02P25/0925 ,  H02P27/06

Abstract: A control device for a switched reluctance motor includes an inverter having a switching circuit that switches a magnetic pole to provide a first winding pattern or a second winding pattern. With respect to a boundary dividing a driving range of the switched reluctance motor into two ranges, the control device performs switching to the first winding pattern when the torque and the rotational speed are located in the first range on the low load side, performs switching to the second winding pattern when the torque and the rotational speed are located in the second range, allows switching of the magnetic pole in a case where a current of the phase whose magnetic pole is to be switched among the three-phase coils is 0, and prohibits switching of the magnetic pole in a case where the current of the phase whose magnetic pole is to be switched is not 0.