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：US11292307B2

公开(公告)日：2022-04-05

申请号：US16578911

申请日：2019-09-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xinyu Du ,  Mutasim A. Salman ,  Lichao Mai ,  Brian K. Saylor ,  Kevin A. Cansiani

IPC: B60G17/015 ,  G07C5/08

Abstract: In various embodiments, methods, systems, and vehicles are provided for determining a fault in a suspension system of a vehicle. In an exemplary embodiment, sensor data is obtained via one or more vehicle sensors during operation of the vehicle; a one or more first coefficients for the vehicle are calculated via a processor using a pitch model with the sensor data; one or more second coefficients for the vehicle are calculated via the processor using a roll model with the sensor data; and a fault in the suspension system is determined via the processor using the first coefficients and the second coefficients.

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：US20210086576A1

公开(公告)日：2021-03-25

申请号：US16578911

申请日：2019-09-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xinyu Du ,  Mutasim Salman ,  Lichao Mai ,  Brian K. Saylor ,  Kevin A. Cansiani

IPC: B60G17/015 ,  G07C5/08

Abstract: In various embodiments, methods, systems, and vehicles are provided for determining a fault in a suspension system of a vehicle. In an exemplary embodiment, sensor data is obtained via one or more vehicle sensors during operation of the vehicle; a one or more first coefficients for the vehicle are calculated via a processor using a pitch model with the sensor data; one or more second coefficients for the vehicle are calculated via the processor using a roll model with the sensor data; and a fault in the suspension system is determined via the processor using the first coefficients and the second coefficients.

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：US20180056745A1

公开(公告)日：2018-03-01

申请号：US15247993

申请日：2016-08-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian K. Saylor ,  Robert G. Izak

IPC: B60G17/0165 ,  G01C21/36 ,  B60K31/00

CPC classification number: B60G17/0165 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/821 ,  B60G2400/90 ,  B60G2401/16 ,  B60G2600/182 ,  B60G2800/162 ,  B60K2031/0016 ,  G01C21/32 ,  G01C21/3664

Abstract: A method to determine and store a location of a ground feature along a route of travel of a vehicle is disclosed. The method includes receiving a user input commanding a change to a vehicle suspension system setting; receiving first location data corresponding to a vehicle location at a time of receipt of the user input; receiving sensor data corresponding to at least one vehicle characteristic from at least one vehicle sensor; calculating a feature location based on the at least one vehicle characteristic; and storing the feature location. In response to a predicted path of the vehicle passing within a threshold distance of the feature location during a subsequent drive cycle, the actuator may be automatically controlled to change the vehicle suspension setting from a first setting to a second setting.