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    Hybrid propulsion system
    3.
    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.

    Motor vehicle hybrid powertrain
    4.
    发明授权
    Motor vehicle hybrid powertrain 有权

    公开(公告)号：US11220172B2

    公开(公告)日：2022-01-11

    申请号：US16597007

    申请日：2019-10-09

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Neeraj S. Shidore ,  Derek F. Lahr ,  Lei Hao ,  Madhusudan Raghavan ,  Suresh Gopalakrishnan

    IPC: B60K6/54 ,  B60K6/383 ,  B60K6/387 ,  F16H1/28 ,  F16H9/02 ,  H02K7/00 ,  H02K7/108 ,  H02K7/116 ,  H02K11/00 ,  H02K11/04 ,  H02K13/00 ,  B60K6/26

    Abstract: A vehicle powertrain includes a first power-source configured to generate a first power-source torque and a multiple speed-ratio transmission configured to transmit the first power-source torque to power the vehicle. The powertrain also includes a fluid coupling having a fluid pump shaft operatively connected to the first power-source and a turbine shaft operatively connected to the multi-speed transmission. The fluid coupling is configured to multiply the first power-source torque, and transfer the multiplied first power-source torque to the multiple speed-ratio transmission. The powertrain additionally includes a second power-source configured to generate a second power-source torque and a first torque transfer system configured to connect the second power-source to the first power-source. The powertrain further includes a second torque transfer system configured to connect the second power-source to the multi-speed transmission. A motor vehicle having such a powertrain is also envisioned.

    Starter for an internal combustion engine
    5.
    发明授权
    Starter for an internal combustion engine 有权

    公开(公告)号：US10815954B2

    公开(公告)日：2020-10-27

    申请号：US15967904

    申请日：2018-05-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Suresh Gopalakrishnan ,  Lei Hao ,  Chandra S. Namuduri ,  Paul S. Lombardo ,  Jeffrey R. Aldrich ,  Chunhao J. Lee ,  Neeraj S. Shidore

    IPC: F02N11/00 ,  F02N11/08 ,  H02P6/17 ,  H02P6/08

    Abstract: An engine starter system includes a starter including a multi-phase brushless electric motor and an electronic commutator assembly. A controller includes an instruction set that is executable in response to a command to execute an engine starting event. Operation includes determining a desired starting profile, controlling the starter to engage a rotatable member of the engine, and monitoring the rotational speed of the electric motor via a rotor position sensing circuit. The starter inverter is dynamically controlled to control the electric motor to spin the rotatable member of the internal combustion engine responsive to the desired starting profile, including dynamically controlling the starter inverter to control the electric motor to control the spin of the engine responsive to the desired starting profile to prevent occurrence of an engine speed flare event during the engine starting event.

    AUGMENTED COOLING OF ELECTRIC VEHICLE
    9.
    发明公开
    AUGMENTED COOLING OF ELECTRIC VEHICLE 审中-公开

    公开(公告)号：US20240351427A1

    公开(公告)日：2024-10-24

    申请号：US18304832

    申请日：2023-04-21

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Peter Paul Andruskiewicz, IV ,  Neeraj S. Shidore ,  Chih-hung Yen ,  Satish P. Ketkar ,  Justin Skorski

    IPC: B60K11/02 ,  B60K1/04

    CPC classification number: B60K11/02 ,  B60K1/04 ,  B60K2001/005 ,  B60K2001/006

    Abstract: A cooling system for a rechargeable energy storage system (RESS) of a vehicle includes a coolant circuit configured to direct a coolant flow through the RESS to remove thermal energy from the RESS, and a refrigerant circuit through which a flow of refrigerant is circulated. A chiller is fluidly connected to the coolant circuit and the refrigerant circuit and is configured to transfer thermal energy between the coolant circuit and the refrigerant circuit. An auxiliary circuit is fluidly connected to the coolant circuit. The auxiliary circuit is configured to selectably direct at least a portion of the coolant flow across a first side of a cold plate for thermal energy exchange with a phase change material located at a second side of the cold plate. One or more valves are configured to selectably direct the at least a portion of the coolant flow through the auxiliary circuit.

    Electrified drivetrain for a vehicle
    10.
    发明授权
    Electrified drivetrain for a vehicle 有权

    公开(公告)号：US11639110B2

    公开(公告)日：2023-05-02

    申请号：US16787686

    申请日：2020-02-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Neeraj S. Shidore ,  Madhusudan Raghavan ,  Norman K. Bucknor ,  Vicente Domenech-Llopis

    IPC: B60L1/00 ,  B60K1/02 ,  B60K17/02 ,  B60K23/06 ,  B60L15/38 ,  B60H1/00 ,  B60H1/32 ,  H02K7/116 ,  B60L50/60 ,  B60L50/51

    Abstract: An electrified drivetrain for a vehicle includes a first electric machine, a second electric machine, a clutch, an HVAC compressor, and a controller. The second electric machine is rotatably coupled to a geartrain, the first electric machine is rotatably coupled to the HVAC compressor, and is rotatably couplable to the geartrain via the clutch, and the clutch is operative in a first state and a second state. The first electric machine is rotatably coupled to the geartrain when the clutch is controlled to the first state, and is decoupled from the geartrain when the clutch is controlled to the second state. The controller is operatively connected to the first and second electric machines, the clutch, and the HVAC compressor to control operation of the electrified drivetrain. The first electric machine can be used as a heater element and to provide mechanical power to the drivetrain.

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