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    Vehicle control apparatus
    22.
    发明授权
    Vehicle control apparatus 有权

    公开(公告)号：US10407075B2

    公开(公告)日：2019-09-10

    申请号：US15841623

    申请日：2017-12-14

    Applicant: Toyota Jidosha Kabushiki Kaisha

    Inventor： Hiromasa Tatsushiro ,  Hiromichi Kimura ,  Tooru Matsubara ,  Kazuyuki Shiiba ,  Takeshi Kitahata ,  Shinichi Sasade ,  Nobufusa Kobayashi ,  Masato Yoshikawa ,  Takahiro Kimura

    IPC: B60W30/19 ,  B60W20/15 ,  B60W10/11 ,  B60K6/365 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  F16H61/04

    Abstract: A control apparatus (80; 122) for a vehicle provided with a motor/generator (MG2; MG) functioning as a drive power source, and a step-variable transmission (20; 110) which constitutes a part of a power transmitting path between the drive power source and drive wheels (28; 116) and which is placed in a selected one of a plurality of speed positions with engagement of a selected one or ones of a plurality of coupling devices (CB). The control apparatus includes: a torque control portion (86) configured to control an output torque (Ti) of the drive power source (MG2) during a shifting action of the step-variable transmission (40; 110) from one of the speed positions to another of the speed positions, on the basis of a required vehicle drive torque (Tidem) corresponding to an operation amount (θacc) of an accelerator pedal, such that a value representing a state of a rotary motion of an input rotary member (30) of the step-variable transmission coincides with a target value; and a torque limiting portion (92) configured to limit the required vehicle drive torque to a predetermined lower limit value (Tif) in the process of a shift-up action of the step-variable transmission which is performed by placement of the accelerator pedal in an operated position.

    Controller and control method for hybrid vehicle
    26.
    发明授权
    Controller and control method for hybrid vehicle 有权

    公开(公告)号：US11541869B2

    公开(公告)日：2023-01-03

    申请号：US16942992

    申请日：2020-07-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Tooru Matsubara ,  Atsushi Tabata ,  Koichi Okuda ,  Yasutaka Tsuchida ,  Kenta Kumazaki ,  Tatsuya Imamura

    IPC: B60W20/13 ,  B60W20/15 ,  B60W20/40 ,  B60W10/04

    Abstract: There are provided a controller and a control method for a hybrid vehicle including an engine with a supercharger serving as a drive power source for travel, a rotary machine serving as a drive power source for travel, and a power storage device configured to transmit and receive electric power to and from the rotary machine. The controller determines whether an operation of the supercharger is limited, compensates for a torque shortage of the engine due to limitation of the operation of the supercharger by a torque of the rotary machine when it is determined that the operation of the supercharger is limited, and curbs a decrease in an amount of electric power stored in the power storage device more when it is determined that the operation of the supercharger is limited than when it is determined that the operation of the supercharger is not limited.

    Hybrid vehicle
    27.
    发明授权
    Hybrid vehicle 有权

    公开(公告)号：US11383693B2

    公开(公告)日：2022-07-12

    申请号：US16372514

    申请日：2019-04-02

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Takeshi Kitahata ,  Tooru Matsubara ,  Kazuyuki Shiiba ,  Koichi Okuda ,  Atsushi Tabata

    IPC: B60W20/00 ,  B60K6/387 ,  B60K6/547 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60K6/40

    Abstract: A hybrid vehicle with an engine and a rotary machine each coupled to a drive wheel in a power transmittable manner, comprises: an electronic control device that makes the rotary machine output a starting-time compensation torque to compensate a drop in a drive torque caused in a starting process of the engine in addition to a running torque when the engine is started while the vehicle is in a running state in which the drive torque is generated by the rotary machine and the engine is in a stopped state. The electronic control device starts the engine such that a starting-time inertia torque that is generated according to starting of the engine and causes the drop in the drive torque is made smaller when a torque margin of the rotary machine which is applied to the starting-time compensation torque is relatively small than when the torque margin is relatively large.

    Control device for hybrid vehicle
    28.
    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.

    Control device for hybrid vehicle
    29.
    发明授权
    Control device for hybrid vehicle 有权

    公开(公告)号：US11338790B2

    公开(公告)日：2022-05-24

    申请号：US16924132

    申请日：2020-07-08

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Takashi Kohno ,  Yasutaka Tsuchida

    IPC: B60W10/08 ,  B60W20/13 ,  B60W20/20

    Abstract: Since a maximum rotation speed is set to a lower value when a supercharging pressure from a supercharger is high than when the supercharging pressure is low, an engine torque is decreased at a relatively low engine rotation speed and the engine rotation speed is less likely to fall into a high-rotation state. Since the maximum rotation speed is set to a relatively high value when the supercharging pressure is relatively low and the engine rotation speed is less likely to fall into a high-rotation state, the engine torque is not decreased at a relatively high engine rotation speed and power performance can be easily secured. Accordingly, it is possible to curb a decrease in power performance due to a decrease in the engine torque and to prevent the engine rotation speed from falling into a high-rotation state.

    Control device for hybrid vehicle
    30.
    发明授权
    Control device for hybrid vehicle 有权

    公开(公告)号：US11325584B2

    公开(公告)日：2022-05-10

    申请号：US16925929

    申请日：2020-07-10

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Yasuhiro Hiasa ,  Yasutaka Tsuchida

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

    Abstract: A control device for a hybrid vehicle includes: a drive control unit that calculates required drive power which is required for a hybrid vehicle based on an accelerator opening when an accelerator return operation is performed, calculates a target engine output which changes slowly with respect to a required engine output for realizing the required drive power through slow change processing, and controls an engine, a first rotary machine, and a second rotary machine such that an engine output reaches the target engine output; and a smoothing rate setting unit that changes a smoothing rate which is used for the slow change processing based on a supercharging pressure and sets the smoothing rate to a smaller value when the supercharging pressure is high than when the supercharging pressure is low.

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