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    Control device for hybrid vehicle
    1.
    发明授权
    Control device for hybrid vehicle 有权

    公开(公告)号：US11433874B2

    公开(公告)日：2022-09-06

    申请号：US17025699

    申请日：2020-09-18

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Takahiro Kimura

    IPC: B60W20/15 ,  B60W10/08 ,  B60W40/06 ,  B60W10/10 ,  B60W10/06

    Abstract: When a speed difference between a maximum rotation speed and an engine rotation speed, that is, an actual rotation speed difference, is equal to or less than a margin rotation speed difference, an engine operating point is changed such that the actual rotation speed difference becomes greater than the margin rotation speed difference. Accordingly, the speed difference between the maximum rotation speed and the engine rotation speed is prevented from becoming equal to or less than the margin rotation speed difference. As a result, since a relatively sufficient margin is secured in the difference between the maximum rotation speed and the engine rotation speed, it is possible to prevent the engine rotation speed from falling into a high-rotation state in which the engine rotation speed exceeds the maximum rotation speed.

    Vehicle control apparatus
    2.
    发明授权
    Vehicle control apparatus 有权

    公开(公告)号：US11273845B2

    公开(公告)日：2022-03-15

    申请号：US16555474

    申请日：2019-08-29

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shinichi Sasade ,  Kenta Kumazaki ,  Jun Goto ,  Koji Sugiyama ,  Takahiro Kimura

    IPC: B60W50/12 ,  B60W10/11 ,  B60W30/18 ,  F16H59/14 ,  F16H59/36 ,  F16H61/682

    Abstract: A control apparatus for a vehicle having a step-variable transmission. The control apparatus includes: a shift control portion to temporarily increase an input torque of the step-variable transmission beyond a required value, the shift control portion commanding an engaging-side coupling device which is the coupling device placed in a released state, to be brought into an engaged state, when the input speed has been raised to a predetermined value; and a torque increasing amount setting portion to set an amount of increase of the input torque of the step-variable transmission beyond the required value, such that the amount of increase is smaller when a rate of change of a running speed of the vehicle is relatively low than when the rate of change is relatively high, the rate of change of the running speed having a negative value in a decelerating state of the vehicle.

    Control apparatus for hybrid vehicle
    6.
    发明授权
    Control apparatus for hybrid vehicle 有权

    公开(公告)号：US10369983B2

    公开(公告)日：2019-08-06

    申请号：US15846888

    申请日：2017-12-19

    Applicant: Toyota Jidosha Kabushiki Kaisha ,  Aisin AW Co., Ltd.

    Inventor： Munehiro Katsumata ,  Hiromichi Kimura ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Takeshi Kitahata ,  Kenta Kumazaki ,  Nobufusa Kobayashi ,  Masato Yoshikawa ,  Takahiro Kimura ,  Daisuke Suyama ,  Kazuomi Okasaka

    IPC: B60W20/10 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60K6/365 ,  B60K6/445 ,  B60W50/08

    Abstract: A control apparatus for a hybrid vehicle provided with an engine, a differential mechanism having a first rotary element to which the engine is operatively connected, a second rotary element to which a first motor/generator is operatively connected, and a third rotary element to which an intermediate power transmitting member is connected, a second motor/generator operatively connected to the intermediate power transmitting member, and an automatic transmission which constitutes a part of a power transmitting path between the intermediate power transmitting member and drive wheels and in which a shifting action is performed by selective engagement of a plurality of coupling devices, the control apparatus comprising: a hybrid control portion for controlling an output torque of the first motor/generator and an output torque of the second motor/generator during the shifting action of the automatic transmission on the basis of an output torque of the engine and a transmitted torque of the coupling devices, such that an angular acceleration value of the second motor/generator and an angular acceleration value of the engine coincide with respective target values; a limited state determining portion for determining whether the output torque of the first motor/generator is in a limited state of being limited lower than a predetermined load capable of ensuring a shift-progressing torque necessary for progress of a power-on shift-down action of the automatic transmission; and an output limiting portion for limiting the output torque of the engine to a predetermined torque or less if the output torque of the first motor/generator is in the limited state during the power-on shift-down action of the automatic transmission.

    Hybrid vehicle
    8.
    发明授权
    Hybrid vehicle 有权

    公开(公告)号：US11541865B2

    公开(公告)日：2023-01-03

    申请号：US16991170

    申请日：2020-08-12

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Takahiro Kimura ,  Yasuhiro Hiasa ,  Yasutaka Tsuchida

    IPC: B60W20/10 ,  B60W20/30 ,  B60W30/188 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115

    Abstract: In a hybrid vehicle, when a required driving force is equal to or smaller than a first upper limit driving force, a control device sets a target driving force to the required driving force. When the required driving force is larger than the first upper limit driving force, the control device sets a target compensation power of a power storage device, based on a difference between the required driving force and the first upper limit driving force. The control device sets a second upper limit driving force of a driveshaft when an upper limit power is output from an engine and the power storage device is charged or discharged with a power based on the target compensation power. The control device sets a target driving force to the smaller between the required driving force and the second upper limit driving force. This configuration suppresses deterioration of the driver's drive feeling.

    Control device for hybrid vehicle
    9.
    发明授权
    Control device for hybrid vehicle 有权

    公开(公告)号：US11352943B2

    公开(公告)日：2022-06-07

    申请号：US16916673

    申请日：2020-06-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Takahiro Kimura ,  Yasutaka Tsuchida

    IPC: F02D41/14 ,  F02B37/14 ,  F02B37/22 ,  B60W10/06 ,  B60W20/10

    Abstract: A rotation adjusting device is controlled such that an engine speed rising rate at the time of acceleration request is made smaller when a turbocharging pressure is lower than the turbocharging pressure is higher. Therefore, an engine speed can be increased at such a low speed that a rising delay in the turbocharging pressure hardly occurs, in a low turbocharging pressure region. Further, when the rotation adjusting device is controlled such that the engine speed rising rate at the time of the acceleration request is set to a value corresponding to the turbocharging pressure, an MG2 torque is controlled to compensate for an insufficient drive torque of an actual engine torque for a request engine torque. Therefore, even when the engine torque is increased slowly by increasing the engine speed at a slow speed, the insufficient drive torque is compensated for by the MG2 torque.

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