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    Method and control unit for operating a hybrid vehicle
    1.
    发明授权
    Method and control unit for operating a hybrid vehicle 有权

    公开(公告)号：US12179740B2

    公开(公告)日：2024-12-31

    申请号：US17527696

    申请日：2021-11-16

    Applicant: ZF Friedrichshafen AG

    Inventor： Johannes Kemler ,  Frank Deprez

    IPC: B60W10/11 ,  B60W10/02 ,  B60W20/30 ,  B60W30/19

    Abstract: A method for operating a hybrid vehicle includes, depending on a presence of a control-side demand to engage a separating clutch (4), implementing an engagement process of the separating clutch (4) during driving under purely electric motor power and, depending on the presence of a control-side demand to implement an upshift in a transmission (5), implementing a gear ratio change from a current gear of the upshift into a target gear of the upshift. In response to the control-side demand to engage the separating clutch (4) and the control-side demand to implement the upshift, the method includes checking whether the upshift is necessary in order to prevent a vehicle-side rotational speed from reaching or exceeding a rotational speed limit value. When the upshift is necessary in order to prevent the vehicle-side rotational speed from reaching or exceeding the rotational speed limit value, the implementation of the upshift in the transmission is prioritized over the implementation of the engagement process of the separating clutch.

    Vehicle that executes a downshift delay process
    2.
    发明授权
    Vehicle that executes a downshift delay process 有权

    公开(公告)号：US12172648B1

    公开(公告)日：2024-12-24

    申请号：US18650908

    申请日：2024-04-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Yuji Natsuga

    IPC: B60W30/19 ,  B60W10/06 ,  B60W10/10 ,  B60W30/18

    Abstract: The vehicle includes a drive source, a transmission that shifts power from the drive source and transmits the power to the drive wheels, and a control device that controls the drive source and the transmission. The control device executes a downshift delay process of changing the timing of the downshift of the transmission to the low vehicle speed side as compared with the case where the predetermined condition is not satisfied when the predetermined condition is not satisfied, when the subject vehicle is in the following mode that follows the forward vehicle, the overtaking with respect to the forward vehicle is restricted, and the predetermined condition of the accelerator off and the brake off is satisfied.

    Continuously variable transmission for electric vehicles
    3.
    发明授权
    Continuously variable transmission for electric vehicles 有权

    公开(公告)号：US12140210B2

    公开(公告)日：2024-11-12

    申请号：US18566235

    申请日：2022-06-03

    Applicant: THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY

    Inventor： Benoit Boulet ,  Abdeslam Medouar

    IPC: F16H3/72 ,  B60W10/08 ,  B60W10/101 ,  B60W30/19 ,  F16H3/64

    Abstract: A continuously-variable transmission (CVT) has: a gearbox having a first planetary gear train, a second planetary gear train, a first rotating spool defined by one of two sun gears, two ring gears, and two carriers of the first and second planetary gear train, a second rotating spool defined by another one of the two sun gears, the two ring gears, and the two carriers, an input defined by a remaining one of the first sun gear, the first carrier, and the first ring gear, and an output defined by a remaining one of the second sun gear, the second carrier, and the second ring gear; a first brake operatively connected to the first rotating spool; a second brake operatively connected to the second rotating spool; and a transmission motor drivingly engaged to the first rotating spool or to the second rotating spool.

    Control method for vehicle and vehicle
    5.
    发明授权
    Control method for vehicle and vehicle 有权

    公开(公告)号：US12084059B2

    公开(公告)日：2024-09-10

    申请号：US18347885

    申请日：2023-07-06

    Applicant: NISSAN MOTOR CO., LTD.

    Inventor： Kenichi Tsubaki ,  Qingyang Wu ,  Ken Yamada

    IPC: B60W30/19 ,  B60W10/06 ,  B60W10/18 ,  B60W10/184 ,  B60W30/192

    CPC classification number: B60W30/192 ,  B60W10/06 ,  B60W10/184 ,  B60W2510/0638 ,  B60W2552/15 ,  B60W2710/0644 ,  B60W2710/18

    Abstract: Provided is a control method for a vehicle including an internal combustion engine as a driving source, the control method for the vehicle including: executing automatic stop control of automatically stopping the internal combustion engine when a predetermined stop condition is satisfied, and executing automatic restart control of automatically restarting the internal combustion engine when a predetermined restart condition is satisfied during execution of the automatic stop control; performing brake holding control of applying a braking force to wheels to maintain a vehicle stop state during the execution of the automatic stop control; and automatically restarting the internal combustion engine when the restart condition is satisfied, and releasing the brake holding control when a predetermined period elapses since the restart condition is satisfied. Particularly, in this control method, the predetermined period is varied according to an engine revolution speed at a time when the restart condition is satisfied.

    Motor vehicle having at least two drive motors and having an automatic gearbox that has one fixed and one power-split transmission ratio
    8.
    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.

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