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：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：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.