公开(公告)号：US09902229B2

公开(公告)日：2018-02-27

申请号：US15048502

申请日：2016-02-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher J. Mettrick ,  Shiv G. Patel ,  Fahim Javid ,  Dhruv Oberoi ,  Ankur Agrawal

IPC: B60G17/0165 ,  B60G17/018 ,  G05D1/08

CPC classification number: B60G17/0165 ,  B60G17/0182 ,  B60G2204/62 ,  B60G2400/82 ,  B60G2400/821 ,  B60G2401/21 ,  B60G2600/187 ,  B60G2800/01 ,  B60G2800/162 ,  B60G2800/87 ,  G05D1/0891

Abstract: Methods and systems are provided for controlling a suspension system of a vehicle. In one embodiment, the method includes: receiving, by a processor, sensor data indicative of conditions of a roadway in a path of the vehicle; determining, by a processor, a continuous road profile based on the sensor data; and selectively controlling, by a processor, at least one suspension element of the vehicle based on the continuous road profile.

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：US20220324266A1

公开(公告)日：2022-10-13

申请号：US17226343

申请日：2021-04-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  University of Waterloo

Inventor： Mansoor Alghooneh ,  Joseph K. Moore ,  Christopher J. Mettrick ,  Gregory P. Kakert ,  Amir Khajepour ,  Amin Habibnejad Korayem ,  Yechen Qin ,  Ehsan Hashemi

IPC: B60C11/24

Abstract: A method for determining a tire tread wear estimation of a tire includes receiving, by a controller, a direct tire tread wear measurement, when available, performing an indirect tire tread wear estimation, performing a data fusion of the indirect tire tread wear estimation with the direct tire tread wear measurement when available, estimating a percentage tire life remaining and a mileage to end of tire life, and estimating a refined tire tread wear calibration coefficient for performing future indirect tire tread wear estimations.

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：US11338676B2

公开(公告)日：2022-05-24

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：US20190011004A1

公开(公告)日：2019-01-10

申请号：US15643004

申请日：2017-07-06

Applicant: GM Global Technology Operations LLC

Inventor： Christopher J. Mettrick ,  Mark T. Riefe ,  Michael L. Holly ,  James A. Webster ,  Michael J. Walker ,  Anil K. Sachdev

IPC: F16D65/12 ,  B60R13/00

CPC classification number: F16D65/127 ,  B60R13/005 ,  F16D65/122 ,  F16D65/125 ,  F16D2065/1328 ,  F16D2200/0004 ,  F16D2200/0039 ,  F16D2250/0015 ,  F16D2250/0038

Abstract: A brake rotor comprising a brake pad wear surface; a hat surface; and a decorative insert comprising an insert material, the decorative insert disposed on the brake pad wear surface, the hat surface, or both; wherein at least one of a friction coefficient between the decorative insert and a brake pad is substantially the same as a friction coefficient between the brake pad wear surface and the brake pad, a wear rate of the decorative insert is substantially the same as or greater than a wear rate of the brake pad wear surface, or a wear rate of the decorative insert is substantially the same as or greater than a wear rate of the hat surface; and at least a portion of the decorative insert is visible on the brake pad wear surface, the hat surface, or both.

公开(公告)号：US11945265B2

公开(公告)日：2024-04-02

申请号：US17226343

申请日：2021-04-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  University of Waterloo

Inventor： Mansoor Alghooneh ,  Joseph K. Moore ,  Christopher J. Mettrick ,  Gregory P. Kakert ,  Amir Khajepour ,  Amin Habibnejad Korayem ,  Yechen Qin ,  Ehsan Hashemi

IPC: B60C11/24

CPC classification number: B60C11/246

Abstract: A method for determining a tire tread wear estimation of a tire includes receiving, by a controller, a direct tire tread wear measurement, when available, performing an indirect tire tread wear estimation, performing a data fusion of the indirect tire tread wear estimation with the direct tire tread wear measurement when available, estimating a percentage tire life remaining and a mileage to end of tire life, and estimating a refined tire tread wear calibration coefficient for performing future indirect tire tread wear estimations.

公开(公告)号：US10378599B2

公开(公告)日：2019-08-13

申请号：US15643004

申请日：2017-07-06

Applicant: GM Global Technology Operations LLC

Inventor： Christopher J. Mettrick ,  Mark T. Riefe ,  Michael L. Holly ,  James A. Webster ,  Michael J. Walker ,  Anil K. Sachdev

IPC: F16D65/12 ,  B60R13/00 ,  F16D65/02

Abstract: A brake rotor comprising a brake pad wear surface; a hat surface; and a decorative insert comprising an insert material, the decorative insert disposed on the brake pad wear surface, the hat surface, or both; wherein at least one of a friction coefficient between the decorative insert and a brake pad is substantially the same as a friction coefficient between the brake pad wear surface and the brake pad, a wear rate of the decorative insert is substantially the same as or greater than a wear rate of the brake pad wear surface, or a wear rate of the decorative insert is substantially the same as or greater than a wear rate of the hat surface; and at least a portion of the decorative insert is visible on the brake pad wear surface, the hat surface, or both.

公开(公告)号：US10266028B2

公开(公告)日：2019-04-23

申请号：US15495247

申请日：2017-04-24

Applicant: GM Global Technology Operations LLC

Inventor： Christopher J. Mettrick ,  Chris Morgan ,  Christopher Archambo ,  Aditya Muktidoot

IPC: B60G17/033 ,  B60G11/27 ,  B60G17/016

Abstract: A suspension system for a vehicle includes a plurality of air spring assemblies, each having an air spring, and a suspension position sensor; and a controller. The controller is programmed to determine corner forces associated with each air spring of the plurality of air spring assemblies based on a pressure provided by a pressure sensor and an effective area of each air spring of the plurality of air spring assemblies based on a total length provided by the suspension position sensor, according to a target total length of each air spring.

公开(公告)号：US20180304717A1

公开(公告)日：2018-10-25

申请号：US15495247

申请日：2017-04-24

Applicant: GM Global Technology Operations LLC

Inventor： Christopher J. Mettrick ,  Chris Morgan ,  Christopher Archambo ,  Aditya Muktidoot

IPC: B60G17/033 ,  B60G11/27

CPC classification number: B60G17/033 ,  B60G11/27 ,  B60G17/0162 ,  B60G17/0163 ,  B60G2400/10 ,  B60G2400/25 ,  B60G2400/41 ,  B60G2400/51222 ,  B60G2500/20 ,  B60G2500/201 ,  B60G2500/30 ,  B60G2800/18 ,  B60G2800/24

Abstract: A suspension system for a vehicle includes a plurality of air spring assemblies, each having an air spring, and a suspension position sensor; and a controller. The controller is programmed to determine corner forces associated with each air spring of the plurality of air spring assemblies based on a pressure provided by a pressure sensor and an effective area of each air spring of the plurality of air spring assemblies based on a total length provided by the suspension position sensor, according to a target total length of each air spring.