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.

公开(公告)号：US20240190412A1

公开(公告)日：2024-06-13

申请号：US18079468

申请日：2022-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. SAYLOR ,  Christopher J. METTRICK

IPC: B60W10/22 ,  B60W40/06 ,  B60W40/105 ,  B60W50/00 ,  G06V10/75 ,  G06V20/56

CPC classification number: B60W10/22 ,  B60W40/06 ,  B60W40/105 ,  B60W50/00 ,  G06V10/751 ,  G06V20/588 ,  B60W2050/0083 ,  B60W2420/42 ,  B60W2552/53 ,  B60W2710/226

Abstract: A damper control system includes: a lane module configured to identify boundaries of a present lane of a vehicle in an image of a road in front of the vehicle captured using a forward facing camera; an oil module configured to, from the image, determine whether an area of oil is present on the road between the boundaries of the present lane of the vehicle; and a damping module configured to, when the area of oil is present on the road between the boundaries of the present lane of the vehicle, selectively adjust damping coefficients of adjustable dampers of the vehicle before the vehicle reaches the area of oil on the road.

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.