公开(公告)号：US10650620B2

公开(公告)日：2020-05-12

申请号：US15700728

申请日：2017-09-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Joshua R. Auden ,  Robert P. Marble

IPC: G07C5/08 ,  B60G21/00

Abstract: Systems and methods to detect abnormalities within a stabilizer system for a vehicle. A method includes receiving suspension system data from one or more vehicle sensors, calculating a roll gradient from the suspension system data, determining whether the calculated roll gradient is greater than a predetermined roll gradient threshold, and setting a diagnostic notification if the calculated roll gradient is greater than the predetermined roll gradient threshold.

公开(公告)号：US09777792B2

公开(公告)日：2017-10-03

申请号：US14960624

申请日：2015-12-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael E. McGuire ,  Gary Klein ,  Charles C. Weddle ,  Robert P. Marble

IPC: F16F9/50 ,  B60G13/08 ,  F16F9/19 ,  F16F9/348 ,  B60G17/08 ,  F16K31/00

CPC classification number: F16F9/50 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2500/11 ,  F16F9/19 ,  F16F9/348 ,  F16K31/005 ,  F16K31/006

Abstract: A damper assembly includes a housing and rod supported by the housing. A piston assembly is attached to the rod, and is positioned to separate an interior chamber of the housing into a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate that defines at least one orifice. The orifice interconnects the first fluid chamber and the second fluid chamber in fluid communication. The damper assembly includes a piezoelectric device that is moveable between a disengaged position and an engaged position, in response to a control signal. When disposed in the disengaged position, the piezoelectric device does not affect fluid flow through the at least one orifice. When disposed in the engaged position, the piezoelectric device does affect fluid flow through the at least one orifice, to adjust a damping rate of the piston assembly.

公开(公告)号：US10414234B2

公开(公告)日：2019-09-17

申请号：US15415921

申请日：2017-01-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael E. McGuire ,  Robert P. Marble ,  Christopher A. Stirlen

IPC: F16F1/00 ,  B60G13/08 ,  B60G13/16 ,  F16F7/108 ,  F16F9/18 ,  F16F9/32

Abstract: A shock absorber includes a first tube defining a first chamber and a piston head movably disposed within the first chamber. A hollow piston rod extends from the piston head. The hollow piston rod defines a rod chamber, and a tuned vibration absorber is disposed within the rod chamber of the hollow piston rod.

公开(公告)号：US20190025160A1

公开(公告)日：2019-01-24

申请号：US15656408

申请日：2017-07-21

Applicant: GM Global Technology Operations LLC

Inventor： Robert P. Marble ,  Joseph K. Moore ,  Nojan Medinei ,  Martin Juhas

IPC: G01M17/04

Abstract: A system and method to determine the health state of a damper associated with a wheel of a vehicle using indirect measurements obtain information from one or more sensors. The one or more sensors includes a wheel speed sensor, inertial measurement unit, tire pressure sensor, steering wheel sensor, global positioning system (GPS) receiver, or a camera. The information from at least one of the one or more sensors includes at least one measurement of a parameter not directly characterizing the damper. The method also includes comparing the at least one measurement of the parameter with data of the parameter to estimate wear of the damper. The data includes a historical measurement, a measurement for another wheel of the vehicle, a measurement from another vehicle, or an output of a model, and a maintenance or replacement task is triggered by the estimate of the wear of the damper.

公开(公告)号：US09897159B2

公开(公告)日：2018-02-20

申请号：US15196625

申请日：2016-06-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert P. Marble ,  Gary Klein ,  Charles C. Weddle ,  Michael E. Mcguire

IPC: F16F9/52 ,  F16F9/348 ,  F16F9/19

CPC classification number: F16F9/523 ,  F16F9/19 ,  F16F9/348 ,  F16F9/3485 ,  F16F9/52 ,  F16F2222/02 ,  F16F2224/0258 ,  F16F2228/066

Abstract: A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate.

公开(公告)号：US20210260952A1

公开(公告)日：2021-08-26

申请号：US16800639

申请日：2020-02-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Michael W. Neal ,  Larry G. Gepfrey ,  Robert G. Izak ,  Robert P. Marble ,  Hojjat Izadi

IPC: B60G21/055 ,  B60G21/00

Abstract: A method of controlling relative roll torque in vehicles having a front active sway bar and a rear active sway bar is provided. The front active sway bar varies roll torque of a front axle and the rear active sway bar varies roll torque of a rear axle. The method includes monitoring dynamic driving conditions during operation of the vehicle and biasing tire lateral load transfer distribution (TLLTD) relative to the front axle based on the monitored dynamic driving conditions. Positive bias of the TLLTD increases the portion of a total roll torque carried by the front active sway bar. Biasing TLLTD occurs during one or more dynamic bias events triggered as monitored dynamic driving conditions exceed one or more calibrated thresholds.

公开(公告)号：US20200089250A1

公开(公告)日：2020-03-19

申请号：US16131235

申请日：2018-09-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert P. Marble ,  Brian K. Saylor ,  Xinyu Du ,  Mutasim A. Salman

IPC: G05D1/02 ,  B60Q9/00 ,  G07C5/08 ,  G06K9/00 ,  G06T7/73

Abstract: A system and method for determining and detecting a suspension system fault using visual sensor data. The system and method are operative to detect a horizon in response to an image using image processing techniques, compare the detected horizon to an expected or calculated horizon and to determine a faulty suspension component in response to a deviation of the detected horizon from the expected horizon.

公开(公告)号：US20190152284A1

公开(公告)日：2019-05-23

申请号：US15818945

申请日：2017-11-21

Applicant: GM Global Technology Operations LLC

Inventor： Robert P. Marble ,  Christopher A. Stirlen ,  Michael E. McGuire

IPC: B60G13/16 ,  B60G13/00

Abstract: A vehicle suspension structure includes a hollow structural component and a Tuned Vibration Absorber disposed inside the hollow structural component.

公开(公告)号：US20180003260A1

公开(公告)日：2018-01-04

申请号：US15196625

申请日：2016-06-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert P. Marble ,  Gary Klein ,  Charles C. Weddle ,  Michael E. Mcguire

IPC: F16F9/52 ,  F16F9/19 ,  F16F9/348

CPC classification number: F16F9/523 ,  F16F9/19 ,  F16F9/348 ,  F16F9/3485 ,  F16F9/52 ,  F16F2222/02 ,  F16F2224/0258 ,  F16F2228/066

Abstract: A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate.

公开(公告)号：US20150054234A1

公开(公告)日：2015-02-26

申请号：US13973299

申请日：2013-08-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert P. Marble ,  Robert G. Izak

IPC: B60G17/04 ,  B60G15/12

CPC classification number: B60G17/0416 ,  B60G15/12 ,  B60G17/08 ,  B60G2400/10 ,  B60G2400/20 ,  B60G2400/50 ,  B60G2400/5122 ,  B60G2400/5182 ,  B60G2500/10 ,  B60G2500/206 ,  B60G2500/30

Abstract: A vehicle suspension system enables active control of pre-load, spring rate, and ride height by using a fluid damper housing defining an interior chamber containing an incompressible fluid and a hollow rod supporting a piston extending into the interior chamber. The housing is movable relative to the hollow rod such that fluid volume in the interior chamber varies. A multi-chambered manifold is operatively connected to the hollow rod and has a first gas chamber in fluid communication with a second gas chamber. A first plunger, a second plunger, and a third plunger are supported by the manifold. A first actuator is operable to move the third plunger to vary a volume of the first gas chamber between the first and third plungers. A second actuator is operable to move the second plunger to vary a volume of the second gas chamber in communication with the first gas chamber.

Abstract translation: 通过使用限定包含不可压缩流体的内部室的流体阻尼器壳体和支撑延伸到内部室中的活塞的中空杆，车辆悬架系统能够主动地控制预加载，弹簧刚度和行驶高度。 壳体可相对于中空杆移动，使得内部腔室中的流体体积变化。 多腔歧管可操作地连接到中空杆并且具有与第二气室流体连通的第一气室。 第一柱塞，第二柱塞和第三柱塞由歧管支撑。 第一致动器可操作以移动第三柱塞以改变第一和第三柱塞之间的第一气室的体积。 第二致动器可操作以移动第二柱塞以改变与第一气室连通的第二气室的体积。