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    Motor vehicle having at least two drive motors and having an automatic gearbox that has one fixed and one power-split transmission ratio
    1.
    发明授权
    Motor vehicle having at least two drive motors and having an automatic gearbox that has one fixed and one power-split transmission ratio 有权

    公开(公告)号：US11932234B2

    公开(公告)日：2024-03-19

    申请号：US18013036

    申请日：2021-08-06

    Applicant: Bayerische Motoren Werke Aktiengesellschaft

    Inventor： Sebastian Liebert

    IPC: B60W20/30 ,  B60W10/08 ,  B60W10/115 ,  B60W30/19

    CPC classification number: B60W20/30 ,  B60W10/08 ,  B60W10/115 ,  B60W30/19 ,  B60W2510/1025 ,  B60W2710/1022

    Abstract: A motor vehicle has at least two drive motors, at least one drive motor being an electric machine; a high-voltage accumulator; and an automatic gearbox, having at least one fixed transmission ratio and at least one power-split transmission ratio for transmission regulation starting from the at least one fixed transmission ratio. The motor vehicle further includes an electronic control unit, which is designed such that, when a gear change command is present, the shifting element to be opened of the fixed transmission ratio to be disengaged is unloaded in a torque-controlled manner by at least two of the drive motors. For the shifting element to be opened, the torque load is calculated and observed. The torque load is observed with the objective of bringing about a load change by way of a zero crossing in order to produce a no-load state at the shifting element. For producing the no-load state of the shifting element to be opened, a first drive motor and a second drive motor are controlled in a power split manner such that they, in terms of rotational speeds, maintain the transmission of the previously engaged fixed transmission ratio, and, in terms of torque, put the shifting element to be opened in an at least nearly no-load state, and a load change is brought about at the shifting element to be opened by a differential rotational speed, opposite the calculated torque load at the shifting element to be opened, being specified at the shifting element.

    Motor Vehicle Having at Least Two Drive Motors and Having an Automatic Gearbox That Has One Fixed and One Power-Split Transmission Ratio
    4.
    发明公开
    Motor Vehicle Having at Least Two Drive Motors and Having an Automatic Gearbox That Has One Fixed and One Power-Split Transmission Ratio 审中-公开

    公开(公告)号：US20230242093A1

    公开(公告)日：2023-08-03

    申请号：US18013036

    申请日：2021-08-06

    Applicant: Bayerische Motoren Werke Aktiengesellschaft

    Inventor： Sebastian LIEBERT

    IPC: B60W20/30 ,  B60W10/115 ,  B60W30/19 ,  B60W10/08

    CPC classification number: B60W20/30 ,  B60W10/115 ,  B60W30/19 ,  B60W10/08 ,  B60W2510/1025 ,  B60W2710/1022

    Abstract: A motor vehicle has at least two drive motors, at least one drive motor being an electric machine; a high-voltage accumulator; and an automatic gearbox, having at least one fixed transmission ratio and at least one power-split transmission ratio for transmission regulation starting from the at least one fixed transmission ratio. The motor vehicle further includes an electronic control unit, which is designed such that, when a gear change command is present, the shifting element to be opened of the fixed transmission ratio to be disengaged is unloaded in a torque-controlled manner by at least two of the drive motors. For the shifting element to be opened, the torque load is calculated and observed. The torque load is observed with the objective of bringing about a load change by way of a zero crossing in order to produce a no-load state at the shifting element. For producing the no-load state of the shifting element to be opened, a first drive motor and a second drive motor are controlled in a power split manner such that they, in terms of rotational speeds, maintain the transmission of the previously engaged fixed transmission ratio, and, in terms of torque, put the shifting element to be opened in an at least nearly no-load state, and a load change is brought about at the shifting element to be opened by a differential rotational speed, opposite the calculated torque load at the shifting element to be opened, being specified at the shifting element.

    Control device and control method for a vehicle, and storage medium
    6.
    发明授权
    Control device and control method for a vehicle, and storage medium 有权

    公开(公告)号：US11613242B2

    公开(公告)日：2023-03-28

    申请号：US17218182

    申请日：2021-03-31

    Applicant: Honda Motor Co., Ltd.

    Inventor： Fumishige Miyaoka

    IPC: B60W10/06 ,  B60W10/115 ,  B60W30/18 ,  B60W10/10 ,  B60W60/00 ,  B60W30/20 ,  B60W40/105

    Abstract: Provided are a control device and a control method for a vehicle, and storage medium which are capable of reducing vibration, noise, and speed change shock caused by a downshift when an increase in a required driving force is predicted during automated drive. In a control device (100) for a vehicle which is equipped with an automatic transmission (TM) and capable of automated driving control, when an increase in a required driving force is predicted during the execution of the automated driving control, a vehicle speed of the vehicle is maintained or decelerated until an increase timing of the required driving force, an engine rotation number is increased within a standby period until the increase timing of the required driving force, a torque of the engine is decreased in response to the increase in the engine rotation number, and a shift gear level of the automatic transmission is shifted downward.

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