公开(公告)号：US12269310B2

公开(公告)日：2025-04-08

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.

公开(公告)号：US20230278383A1

公开(公告)日：2023-09-07

申请号：US17688238

申请日：2022-03-07

Applicant: GM Global Technology Operations LLC

Inventor： Robert Patrick Marble

IPC: B60G17/016 ,  B60G17/08 ,  B60G17/027 ,  B60G17/052

CPC classification number: B60G17/0162 ,  B60G17/08 ,  B60G17/027 ,  B60G17/0523 ,  B60G2202/30 ,  B60G2204/62 ,  B60G2500/104 ,  B60G2800/24 ,  B60G2800/91

Abstract: A vehicle, variable spring system and method of operating a corner actuator coupled to wheel of the vehicle. The vehicle includes the corner actuator and the variable spring system. The variable spring system includes a control chamber coupled to the corner actuator, a first spring, a second spring, and a valve. An applied resistance for the corner actuator is selected by selecting an amount of fluid coupling between the control chamber and each of the first spring and the second spring. A force is absorbed at the wheel using the applied resistance.

公开(公告)号：US11872862B2

公开(公告)日：2024-01-16

申请号：US17592875

申请日：2022-02-04

Applicant: GM Global Technology Operations LLC

Inventor： Brian K. Saylor ,  Matthew Gregory Kowal ,  Robert Patrick Marble

IPC: B60G17/017 ,  B60G17/018 ,  B60G17/02

CPC classification number: B60G17/017 ,  B60G17/018 ,  B60G17/02 ,  B60G2600/172

Abstract: A weight balancing system for a vehicle performs a method of adjusting a weight on a wheel of a vehicle. The system includes a processor of the vehicle and a scale. A wheel of the vehicle is placed on the scale, the wheel having an associated spring seat and associated spring. The scale measures a weight placed on the wheel by the vehicle and communicates the weight to the processor. The processor activates the spring seat to adjust a length of the spring, thereby adjusting the weight placed on the wheel by the vehicle.

公开(公告)号：US20230249511A1

公开(公告)日：2023-08-10

申请号：US17592875

申请日：2022-02-04

Applicant: GM Global Technology Operations LLC

Inventor： Brian K. Saylor ,  Matthew Gregory Kowal ,  Robert Patrick Marble

IPC: B60G17/017 ,  B60G17/02 ,  B60G17/018

CPC classification number: B60G17/017 ,  B60G17/02 ,  B60G17/018 ,  B60G2600/172

Abstract: A weight balancing system for a vehicle performs a method of adjusting a weight on a wheel of a vehicle. The system includes a processor of the vehicle and a scale. A wheel of the vehicle is placed on the scale, the wheel having an associated spring seat and associated spring. The scale measures a weight placed on the wheel by the vehicle and communicates the weight to the processor. The processor activates the spring seat to adjust a length of the spring, thereby adjusting the weight placed on the wheel by the vehicle.

公开(公告)号：US11981178B1

公开(公告)日：2024-05-14

申请号：US18319780

申请日：2023-05-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Robert Patrick Marble

IPC: B60G21/055

CPC classification number: B60G21/0558 ,  B60G2202/132 ,  B60G2202/24 ,  B60G2204/62 ,  B60G2206/41 ,  B60G2206/427 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2500/104 ,  B60G2500/20 ,  B60G2600/182 ,  B60G2800/012 ,  B60G2800/9122

Abstract: A stabilizer bar assembly for a suspension system of a vehicle. The stabilizer bar assembly includes a first bar configured to be coupled to the vehicle suspension system proximate to a first wheel. A second bar is adjacent to the first bar. A coupling assembly is at an interface between the first bar and the second bar. The coupling assembly includes a magnetorheological material in contact with both the first bar and the second bar. The magnetorheological material is configured to transform from a fluid state to a viscoelastic solid state when subject to a magnetic field. A magnet is configured to apply the magnetic field to the magnetorheological material. In the viscoelastic solid state, the magnetorheological material resists relative movement between the first bar and the second bar.

公开(公告)号：US11807061B2

公开(公告)日：2023-11-07

申请号：US17688238

申请日：2022-03-07

Applicant: GM Global Technology Operations LLC

Inventor： Robert Patrick Marble

IPC: B60G17/016 ,  B60G17/08 ,  B60G17/027 ,  B60G17/052

CPC classification number: B60G17/0162 ,  B60G17/027 ,  B60G17/0523 ,  B60G17/08 ,  B60G2202/30 ,  B60G2204/62 ,  B60G2500/104 ,  B60G2800/24 ,  B60G2800/91

Abstract: A vehicle, variable spring system and method of operating a corner actuator coupled to wheel of the vehicle. The vehicle includes the corner actuator and the variable spring system. The variable spring system includes a control chamber coupled to the corner actuator, a first spring, a second spring, and a valve. An applied resistance for the corner actuator is selected by selecting an amount of fluid coupling between the control chamber and each of the first spring and the second spring. A force is absorbed at the wheel using the applied resistance.