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    SYSTEMS AND METHODS FOR CONTROLLING ACTIVE ROLL CONTROL SYSTEMS IN VEHICLES
    2.
    发明申请
    SYSTEMS AND METHODS FOR CONTROLLING ACTIVE ROLL CONTROL SYSTEMS IN VEHICLES 有权

    公开(公告)号：US20240391289A1

    公开(公告)日：2024-11-28

    申请号：US18322240

    申请日：2023-05-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Christopher J. METTRICK ,  Brian K. SAYLOR

    IPC: B60G21/10

    Abstract: A system for controlling an active stabilizer bar in a vehicle includes a stabilizer bar associated with one or more wheels of the vehicle and a control module in communication with the stabilizer bar. The stabilizer bar is configured to be controlled according to a plurality of stiffness modes. Each stiffness mode is associated with a different amount of torque for the stabilizer bar. The control module is configured to control the stabilizer bar to operate according to a first stiffness mode of the plurality of stiffness modes, detect an anomaly in a path of the vehicle, and in response to detecting the anomaly, control the stabilizer bar to operate according to a second stiffness mode of the plurality of stiffness modes, the second stiffness mode being different than the first stiffness mode. Other examples systems and methods for controlling active stabilizer bars in vehicles are also disclosed.

    VARIABLE SUSPENSION SPRING RATES USING MAGNETORHEOLOGICAL FLUID
    4.
    发明申请
    VARIABLE SUSPENSION SPRING RATES USING MAGNETORHEOLOGICAL FLUID 有权

    公开(公告)号：US20240367473A1

    公开(公告)日：2024-11-07

    申请号：US18312823

    申请日：2023-05-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian K. SAYLOR ,  Robert Patrick MARBLE ,  Christopher J. METTRICK

    IPC: B60G17/02 ,  B60G11/58 ,  B60G17/0165

    Abstract: A vehicle suspension control system includes a central suspension spring core, a first suspension spring surrounding an upper portion of the central suspension spring core, a second suspension spring surrounding a lower portion of the central suspension spring core, the first suspension spring and the second suspension spring coupled between a wheel and a fixed structure of a vehicle to inhibit movement of the wheel, a spring seat surrounding the central suspension spring core and coupled between the first and second suspension springs, the spring seat including an outer sleeve and multiple seals for retaining magnetorheological fluid between the outer sleeve and the central suspension spring core, one or more electromagnets adjacent the spring seat, and a suspension control module configured to energize the one or more electromagnets to selectively modify a viscosity of the magnetorheological fluid to inhibit movement of the first suspension spring or the second suspension spring.

    VEHICLE ANTI-PITCH OPERATIONS DURING NEAR STOPPED STATE CONDITIONS
    5.
    发明公开
    VEHICLE ANTI-PITCH OPERATIONS DURING NEAR STOPPED STATE CONDITIONS 审中-公开

    公开(公告)号：US20240059291A1

    公开(公告)日：2024-02-22

    申请号：US17890599

    申请日：2022-08-18

    Applicant: GM Global Technology Operations LLC

    Inventor： Brian K. SAYLOR ,  Edward T. HEIL

    IPC: B60W30/18 ,  B60W40/11

    CPC classification number: B60W30/18109 ,  B60W40/11 ,  B60W2510/182

    Abstract: A brake torque control system of a host vehicle includes a memory and a brake torque control module. The memory stores, for a braking event, multiple values indicative of whether an object has been detected forward of the host vehicle, a speed of the host vehicle, and an expected stopping distance or an expected stopping location of the host vehicle. The brake control module, based on the values, operates in an anti-pitch mode and reduces at least one of an amount of brake torque requested and a brake pressure applied for a last remaining portion of the braking event to reduce pitch of the host vehicle prior to coming to a complete stop and to not reduce the at least one of the amount of brake torque requested and the brake pressure applied for a portion of the braking event prior to the last remaining portion of the braking event.

    SUSPENSION CONTROL SYSTEMS AND METHODS BASED ON ROAD PREVIEW
    6.
    发明申请
    SUSPENSION CONTROL SYSTEMS AND METHODS BASED ON ROAD PREVIEW 有权

    公开(公告)号：US20240399811A1

    公开(公告)日：2024-12-05

    申请号：US18326084

    申请日：2023-05-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian K. SAYLOR ,  Adam Douglas STANTON ,  Matthew WATTS ,  Matthew BRUCE

    IPC: B60G17/016

    Abstract: A suspension control system includes: an acceleration module configured to determine a predicted lateral acceleration of a vehicle in the future based on a radius of curvature of a road a predetermined distance in front of the vehicle; and at least one of: a damping module configured to, before the vehicle reaches the curvature, selectively adjust damping coefficients of adjustable dampers of the vehicle based on the predicted lateral acceleration; and an active roll control (ARC) control module configured to, before the vehicle reaches the curvature, selectively adjust stiffness of ARC devices of the vehicle based on the predicted lateral acceleration.

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