公开(公告)号：US20240181826A1

公开(公告)日：2024-06-06

申请号：US18075072

申请日：2022-12-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Patrick MARBLE ,  Gheorghe NICA ,  Eric B. HOYER

IPC: B60G11/27

CPC classification number: B60G11/27 ,  B60G2202/152 ,  B60G2204/201

Abstract: An air suspension system for a vehicle including an air compressor, a bladder, and an air line. The bladder defines a reservoir configured to store air compressed by the air compressor. The bladder is configured to be seated within a structural member of a frame of the vehicle. The bladder includes a flexible layer covered by an abrasion resistant layer configured to protect the flexible layer from contact with the structural member of the vehicle. An air line fitting is connected to the bladder and in fluid communication with the reservoir. The air line fitting is configured to cooperate with an air line configured to carry air to and from the reservoir.

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.