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    DEHUMIDIFICATION SYSTEM FOR BATTERY PACK WITH DESICCANT RECONDITIONING
    1.
    发明公开
    DEHUMIDIFICATION SYSTEM FOR BATTERY PACK WITH DESICCANT RECONDITIONING 审中-公开

    公开(公告)号：US20240266701A1

    公开(公告)日：2024-08-08

    申请号：US18166088

    申请日：2023-02-08

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Konrad M. Brown ,  Vicente Domenech-Llopis

    IPC: H01M50/673 ,  H01M10/615 ,  H01M50/342

    CPC classification number: H01M50/673 ,  H01M10/615 ,  H01M50/342

    Abstract: A system for managing dehumidification in a battery pack having a plurality of battery modules includes a casing is adapted to house the plurality of battery modules. The casing has at least one cavity with a dehumidification unit being at least partially positioned within the cavity. The dehumidification unit includes a desiccant. A heating element is positioned in proximity to and adapted to selectively heat the desiccant. The system includes a control unit having a processor and tangible, non-transitory memory on which instructions are recorded. The control unit is adapted to control the heating element. The desiccant is adapted to collect moisture during a collection phase of dehumidification and the heating element is adapted to dry the desiccant during a reconditioning phase of the dehumidification.

    DIESEL PISTON WITH SHARP-STEP PROFILE
    3.
    发明申请
    DIESEL PISTON WITH SHARP-STEP PROFILE 审中-公开

    公开(公告)号：US20190178203A1

    公开(公告)日：2019-06-13

    申请号：US15838648

    申请日：2017-12-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Ramachandra Diwakar ,  Vicente Domenech-Llopis ,  Richard C Peterson ,  Alberto Lorenzo Vassallo

    IPC: F02F3/02 ,  F02B23/06

    Abstract: A piston for a diesel engine includes a piston body having a skirt and crown. The piston body has portions defining an outer combustion bowl and an inner combustion bowl within the piston body through the crown. The outer combustion bowl has a curved annular side wall extending from the crown surface and an annular flat shelf extending from the curved annular side wall. The new stepped bowl design integrates a bottom profile with smoothly varying curvature and a sharp step at the top. The annular flat shelf is recessed a distance in the range of 2.5-4.5 millimeters from a line coplanar with the crown surface. The piston body defines an outer convex curved surface connecting the curved annular side wall to the crown surface. The outer convex curved surface has a radius of curvature in the range of 0.25-0.75 millimeter.

    ELECTRIFIED DRIVETRAIN FOR A VEHICLE
    5.
    发明申请
    ELECTRIFIED DRIVETRAIN FOR A VEHICLE 有权

    公开(公告)号：US20210245603A1

    公开(公告)日：2021-08-12

    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

    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.

    Multi-pulse fuel injection system and control logic for internal combustion engine assemblies
    6.
    发明授权
    Multi-pulse fuel injection system and control logic for internal combustion engine assemblies 有权

    公开(公告)号：US10167809B1

    公开(公告)日：2019-01-01

    申请号：US15660584

    申请日：2017-07-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Vicente Domenech-Llopis ,  Richard C. Peterson

    IPC: F02B3/00 ,  F02D41/40 ,  F02D41/38

    Abstract: Disclosed are multi-pulse fuel injection systems, control logic for operating such systems, and direct-injection engines having multi-pulse fuel delivery capabilities. A method is disclosed for operating the fuel injection system of an internal combustion engine (ICE) assembly. The method includes a vehicle controller transmitting command signals to the fuel injectors to inject a first pilot quantity of fuel (QP1) and, subsequently, inject a second pilot quantity of fuel (QP2), distinct from QP1, after a first dwell time between QP1 and QP2 during a single combustion cycle of the ICE assembly. The vehicle controller also transmits command signals to the fuel injectors to inject a third pilot quantity of fuel (QP3), greater than QP1 and QP2, after a second dwell time between QP2 and QP3, and then inject a fourth pilot quantity of fuel (QP4), less than QP3, after a third dwell time between QP3 and QP4 during the combustion cycle.

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