Gm Global Technolgoy Operations, Inc.

Joseph A Schudt

John E Howard

Ravindra P Patil

Robert L Geisler

Daryl R Poirier

Mark A Stebbins

Qijun Zhang

Andrew J Baines

Michael McGuire

Christopher A Stirlen

Michael A Ray

Maolin Tsai

Robert T Jane

Fan Li

James C Holtgreven

A vehicle having a structure is provided. The system includes a cradle mounted to the structure at a first position and a second position, the second position being spaced apart from the first position. A rear drive module is provided having a housing, the housing coupled to the cradle between the first position and the second position, the housing coupled to the cradle in at least two locations. At least one linkage is operably coupled to the housing on a first end and to the structure on a second end.

Rear drive module assembly and system for mounting to a vehicle

A panel assembly includes a first panel defining a surface, and a boom attenuation panel. The boom attenuation panel includes a circumferential edge, and a central portion. The boom attenuation panel is attached to the surface of the first panel, along the circumferential edge of the boom attenuation panel. The central portion of the boom attenuation panel is spaced from the surface of the first panel a gap distance to form a gas chamber between the surface of the first panel and the central portion of the boom attenuation panel. The gas chamber contains a gas that is moveable within the gas chamber in response to wave-like motion of the first panel. Movement of the gas increases the effective acoustic mass of the boom attenuation panel, and damped the wave-like motion of the first panel, which operates to reduce noise generated from the wave-like motion of the first panel.

Panel assembly with noise attenuation system

A panel assembly includes a first panel and noise attenuation panel that is attached to the first panel. The noise attenuation panel includes a central portion having a length and a width. The central portion of the noise attenuation panel is spaced from the surface of the first panel by a gap distance to form a gas chamber between the surface of the first panel and the central portion of the noise attenuation panel. The panel assembly includes at least one wall structure that is disposed within the gas chamber. The wall structure extends between the central portion of the noise attenuation panel and the surface of the first panel, and includes a pattern that defines a fluid flow path through the gas chamber, which includes an effective length that is greater than both the length and the width of the central portion of the noise attenuation panel.

Panel assembly with noise attenuation system having a geometric pattern for air gap acoustic impedance

An acoustic sensing system for a motor vehicle includes a strain gauge mounted at a motor vehicle surface, and a sensing circuit operatively coupled to the strain gauge. The sensing circuit is configured and disposed to detect acoustic responses in a passenger compartment of the motor vehicle through the strain gauge.

Acoustic sensing system for a motor vehicle

Apparatus are provided for a jounce bumper system for use with a damper. The jounce bumper system includes a first mount and a jounce bumper having a first end coupled to the first mount and a second end. The jounce bumper system includes a flexible striker cap spaced apart from the second end of the jounce bumper in a first position. The flexible striker cap includes a first surface in contact with the second end in a second position and defines a cavity opposite the first surface. The jounce bumper system further includes an insert received within the cavity.

Systems and methods for damper having an insert

A mount assembly for a suspension damper is provided which includes a piston rod extending about an axis and a mount housing. A jounce bumper is axially positioned about the piston rod and has an end surface and a radially outer surface. The jounce bumper is formed of a first deformable material selectable for absorbing energy from an axial force applicable through the piston rod. A jounce bumper cup formed of a second deformable material selectable for absorbing additional energy fits onto the end surface of the jounce bumper. The jounce bumper cup has a wall portion extending sufficiently around the radially outer surface of the jounce bumper to retain it in position and a load mount portion extending to the mount housing and being configured to absorb the additional energy.

Mount assembly for suspension damper

A vehicle suspension system including a shock upper mount assembly mounted to vehicle structure, a jounce bumper being made of an elastomeric material and including a vertically extending rod bore around a rod of a shock absorber, and a jounce rate cup. The jounce rate cup is made of an elastomeric material and includes a horizontally extending support flange having a lower surface mounted on the jounce bumper, a horizontally extending dust boot attachment flange spaced from the support flange and having an upper surface located below and adjacent to the shock upper mount assembly, and a vertical flange extending between the support flange and the dust boot attachment flange to define a gap between the support flange and the dust boot attachment flange, with the jounce rate cup including a vertically extending rod bore mounted around the rod.

Load mount jounce rate cup

A jounce bumper assembly for a vehicular suspension system, the suspension system having a first member and a second member, is provided. The assembly comprises a mount coupled to the first member, wherein the mount has a cylindrical portion comprising a first cylindrical outer surface. The assembly also comprises a jounce bumper coupled to the second member, and a striker cap having a first end comprising a first cylindrical inner surface circumferentially coupled over the first cylindrical outer surface, and having a second end configured for resilient engagement with the jounce bumper.

Vehicular jounce bumper assembly

An upper strut assembly comprising a strut rod, a jounce bumper, a jounce bumper cup, and an upper strut mount attached to the strut rod by a fastener is disclosed. The strut rod extends about a vertical axis. The jounce bumper axially encompasses the strut rod. The jounce bumper cup includes an upper surface that is fixed about a top portion of the jounce bumper. The upper strut mount limits an anticipated peak force applied to the upper strut assembly.

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Macomb, MI, United States of America

Joseph A Schudt