公开(公告)号：US11305602B2

公开(公告)日：2022-04-19

申请号：US16673343

申请日：2019-11-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xinyu Du ,  Lichao Mai ,  Brian K. Saylor ,  Arvind Sharma ,  Kevin A. Cansiani

IPC: B60G17/0185 ,  B60G17/017

Abstract: A system for testing a suspension system of a vehicle includes an inertial measurement module and a suspension fault detection module. The inertial measurement module is configured to, while the vehicle is not moving, collect sensor data from one or more inertial measurement sensors for different states of the suspension system. The sensor data is indicative of inertial states of the vehicle while the suspension system is in each of the different states. The suspension fault detection module is configured to, based on the sensor data and a set of thresholds, determine whether a fault exists with the suspension system, isolate and identify the fault, and perform a countermeasure based on the detection of the fault.

公开(公告)号：US20200180383A1

公开(公告)日：2020-06-11

申请号：US16214482

申请日：2018-12-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David T. De Carteret ,  Brian K. Saylor

IPC: B60G17/052 ,  B60G11/27 ,  F16F9/02 ,  F16F9/46

Abstract: An exemplary self-balancing air spring includes a first chamber, the first chamber defining a primary volume, the first chamber including a movable piston, a second chamber fluidicly coupled to the first chamber via a first orifice and a second orifice, the second chamber defining a secondary volume, and an actuator coupled to the movable piston. In some aspects, the first orifice is an electromechanical valve and the second orifice is a bleed valve that equalizes the pressure between the first and second chambers.

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：US11161383B1

公开(公告)日：2021-11-02

申请号：US16863828

申请日：2020-04-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Larry G. Gepfrey ,  Adam D. Stanton ,  Robert G. Izak ,  Bo Yu

IPC: B60G17/015 ,  B60G17/052 ,  B60G21/055 ,  B60G17/016

Abstract: A process for correcting longitudinal roll from an offset load using active roll control within a vehicle is provided. The process includes, within a computerized controller using axle-based control to control a suspension system, operating programming to control pneumatic pressure supplied to each of a plurality of air spring devices within the suspension system to execute a vehicle leveling event including one of adjusting a height of the vehicle or maintaining the height of the vehicle. The process further includes operating programming to, simultaneously with the controlling the pneumatic pressure, utilize a plurality of active sway bars to provide an offset torque to the vehicle body. Each of the plurality of active sway bars is associated with one of a plurality of axles. Providing the offset torque is based upon a number of moles of air in each of the plurality of air spring devices and reducing the longitudinal roll.

公开(公告)号：US20190102959A1

公开(公告)日：2019-04-04

申请号：US15719978

申请日：2017-09-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Branton E. Dennis, IV ,  Robert P. Marble ,  Nojan Medinei

IPC: G07C5/08 ,  B60G17/019 ,  G07C5/00

Abstract: An exemplary method to detect a wear condition of a suspension system component of a vehicle includes the steps of receiving suspension system component data from a vehicle sensor, calculating an amplitude of the suspension system component data as a function of frequency, monitoring the amplitude of the suspension system component data within a predetermined frequency range, determining whether the amplitude of the suspension system component data is greater than a predetermined threshold, and, if the amplitude is greater than the predetermined threshold, transmitting a diagnostic notification.

公开(公告)号：US20190080531A1

公开(公告)日：2019-03-14

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：US20210379991A1

公开(公告)日：2021-12-09

申请号：US16896495

申请日：2020-06-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Christopher J. Mettrick

IPC: B60K28/08 ,  B60G17/019 ,  B60G17/017

Abstract: A vehicle includes a frame, a body supported by the frame, a prime mover mounted to the frame, at least one axle connected to the frame, a suspension system connecting the at least one axle to the frame, and a load sensing and control system including at least one load sensor connected to the suspension system and a controller operatively connected to the at least one load sensor and the prime mover. The controller being operable to calculate a vehicle loading factor before the vehicle moves and to prevent operation of the prime mover if the vehicle loading factor that exceeds a selected load threshold.

公开(公告)号：US10967698B2

公开(公告)日：2021-04-06

申请号：US16214482

申请日：2018-12-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David T. De Carteret ,  Brian K. Saylor

IPC: B60G17/08 ,  B60G17/052 ,  B60G11/27 ,  F16F9/02 ,  F16F9/46

Abstract: An exemplary self-balancing air spring includes a first chamber, the first chamber defining a primary volume, the first chamber including a movable piston, a second chamber fluidicly coupled to the first chamber via a first orifice and a second orifice, the second chamber defining a secondary volume, and an actuator coupled to the movable piston. In some aspects, the first orifice is an electromechanical valve and the second orifice is a bleed valve that equalizes the pressure between the first and second chambers.

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：US20190331218A1

公开(公告)日：2019-10-31

申请号：US15964533

申请日：2018-04-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Matthew G. Kowal

IPC: F16H61/425 ,  B60K6/12 ,  B60G99/00 ,  B60G17/015

Abstract: An exemplary energy delivery system includes a housing. The housing includes a linear motor including a translational member and an electromagnetic field generating member. Energization of the electromagnetic field generating member induces translation of the translational member along a longitudinal axis of the linear motor. The housing further includes a first cylinder including a first chamber and a movable first piston and a second cylinder including a second chamber and a movable second piston. The first and second cylinders are coupled in-line with the linear motor within the housing and translation of the translational member along the longitudinal axis translates the first piston within the first chamber in a first direction and translates the second piston within the second chamber in a second direction opposite the first direction.