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    Motor vehicles, powertrain systems and control logic for the dynamic allocation of fast torque production
    1.
    发明授权
    Motor vehicles, powertrain systems and control logic for the dynamic allocation of fast torque production 有权

    公开(公告)号：US11241967B2

    公开(公告)日：2022-02-08

    申请号：US16420649

    申请日：2019-05-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Matthew Yard ,  Luke D. Shepley ,  Jacob B. Wilson

    IPC: B60W20/10 ,  B60L15/20 ,  B60W50/038 ,  B60W30/18

    Abstract: Presented are vehicle powertrains and control logic for provisioning intelligent fast-torque output, methods for making/using such systems, and electric-drive vehicles with dynamically allocated fast-torque production. A method of controlling torque output of a vehicle powertrain includes a vehicle controller receiving sensor data and determining therefrom maximum and minimum motor torque capacities of a traction motor. The controller calculates the traction motor's maximum and minimum effective motor capacities based on a previous motor torque command and the maximum and minimum torque capacities, respectively. The controller then determines if a negative of the crankshaft torque reserve is: (1) greater than the minimum effective motor capacity; and (2) less than the maximum effective motor capacity. If (1) or (2) is true, an engine spark torque command is set equal to an air torque spark value, and the controller commands an engine assembly to modulate its torque output based on the spark torque command.

    Hybrid propulsion system
    2.
    发明授权
    Hybrid propulsion system 有权

    公开(公告)号：US11247655B2

    公开(公告)日：2022-02-15

    申请号：US16508823

    申请日：2019-07-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Dongxu Li ,  Chunhao J. Lee ,  Neeraj S. Shidore ,  Luke D. Shepley ,  Brenton J. Bergkoetter ,  Norman K. Bucknor

    IPC: B60W10/30 ,  B60W10/02

    Abstract: A hybrid powertrain system includes an electric machine, a torque converter, a transmission, a hydraulic pump, and a controller, and it is arranged to transfer mechanical power to a driveline. The torque converter includes a clutch, a pump, and a turbine, and the electric machine is rotatably coupled to the hydraulic pump and to the torque converter pump. The hydraulic pump is fluidly connected to the transmission, and the controller is operably connected to the electric machine and the torque converter clutch. The controller is executable to determine an operator command, and control the electric machine to spin the hydraulic pump in a speed control mode and control the torque converter clutch in an open state. Upon achieving a desired minimum pump speed, the torque converter clutch is applied in a slip state and the electric machine is controlled in response to the operator command.

    HYBRID PROPULSION SYSTEM
    3.
    发明申请
    HYBRID PROPULSION SYSTEM 有权

    公开(公告)号：US20210009104A1

    公开(公告)日：2021-01-14

    申请号：US16508823

    申请日：2019-07-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Dongxu Li ,  Chunhao J. Lee ,  Neeraj S. Shidore ,  Luke D. Shepley ,  Brenton J. Bergkoetter ,  Norman K. Bucknor

    IPC: B60W10/30 ,  B60W10/02

    Abstract: A hybrid powertrain system includes an electric machine, a torque converter, a transmission, a hydraulic pump, and a controller, and it is arranged to transfer mechanical power to a driveline. The torque converter includes a clutch, a pump, and a turbine, and the electric machine is rotatably coupled to the hydraulic pump and to the torque converter pump. The hydraulic pump is fluidly connected to the transmission, and the controller is operably connected to the electric machine and the torque converter clutch. The controller is executable to determine an operator command, and control the electric machine to spin the hydraulic pump in a speed control mode and control the torque converter clutch in an open state. Upon achieving a desired minimum pump speed, the torque converter clutch is applied in a slip state and the electric machine is controlled in response to the operator command.

    MOTOR VEHICLES, POWERTRAIN SYSTEMS AND CONTROL LOGIC FOR THE DYNAMIC ALLOCATION OF FAST TORQUE PRODUCTION
    5.
    发明申请
    MOTOR VEHICLES, POWERTRAIN SYSTEMS AND CONTROL LOGIC FOR THE DYNAMIC ALLOCATION OF FAST TORQUE PRODUCTION 审中-公开

    公开(公告)号：US20200369162A1

    公开(公告)日：2020-11-26

    申请号：US16420649

    申请日：2019-05-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Matthew Yard ,  Luke D. Shepley ,  Jacob B. Wilson

    IPC: B60L15/20 ,  B60W50/038 ,  B60W20/10

    Abstract: Presented are vehicle powertrains and control logic for provisioning intelligent fast-torque output, methods for making/using such systems, and electric-drive vehicles with dynamically allocated fast-torque production. A method of controlling torque output of a vehicle powertrain includes a vehicle controller receiving sensor data and determining therefrom maximum and minimum motor torque capacities of a traction motor. The controller calculates the traction motor's maximum and minimum effective motor capacities based on a previous motor torque command and the maximum and minimum torque capacities, respectively. The controller then determines if a negative of the crankshaft torque reserve is: (1) greater than the minimum effective motor capacity; and (2) less than the maximum effective motor capacity. If (1) or (2) is true, an engine spark torque command is set equal to an air torque spark value, and the controller commands an engine assembly to modulate its torque output based on the spark torque command.

    Electrified powertrain with centralized power distribution strategy and decentralized inverters
    7.
    发明授权
    Electrified powertrain with centralized power distribution strategy and decentralized inverters 有权

    公开(公告)号：US11708060B2

    公开(公告)日：2023-07-25

    申请号：US17165145

    申请日：2021-02-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Matthew Yard ,  Krunal P. Patel ,  Karthikeyan Palanichamy ,  Luke D. Shepley

    IPC: B60W10/08 ,  B60W10/119

    CPC classification number: B60W10/08 ,  B60W10/119 ,  B60W2510/083 ,  B60W2710/083

    Abstract: A method for distributing electrical power to electric motors in an electric powertrain, in which the electric motors are electrically connected to a shared power supply, includes receiving input signals via a supervisory controller. The input signals include a total torque request of the electric powertrain and electrical limits of the power supply. The method includes determining an open-loop torque command for each respective motor in response to the input signals. In response to the total torque request and the power supply limits, the controller also determines maximum and minimum power limits of motor, with the maximum and minimum power limits including a calibrated power reserve for executing a predetermined torque operation. The method includes transmitting the open-loop torque command and the power limits to a respective motor control processor of each motor to thereby control the torque operation.

    ELECTRIFIED POWERTRAIN WITH CENTRALIZED POWER DISTRIBUTION STRATEGY AND DECENTRALIZED INVERTERS
    8.
    发明申请
    ELECTRIFIED POWERTRAIN WITH CENTRALIZED POWER DISTRIBUTION STRATEGY AND DECENTRALIZED INVERTERS 有权

    公开(公告)号：US20220242387A1

    公开(公告)日：2022-08-04

    申请号：US17165145

    申请日：2021-02-02

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Matthew Yard ,  Krunal P. Patel ,  Karthikeyan Palanichamy ,  Luke D. Shepley

    IPC: B60W10/08 ,  B60W10/119

    Abstract: A method for distributing electrical power to electric motors in an electric powertrain, in which the electric motors are electrically connected to a shared power supply, includes receiving input signals via a supervisory controller. The input signals include a total torque request of the electric powertrain and electrical limits of the power supply. The method includes determining an open-loop torque command for each respective motor in response to the input signals. In response to the total torque request and the power supply limits, the controller also determines maximum and minimum power limits of motor, with the maximum and minimum power limits including a calibrated power reserve for executing a predetermined torque operation. The method includes transmitting the open-loop torque command and the power limits to a respective motor control processor of each motor to thereby control the torque operation.

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