公开(公告)号：US20190389446A1

公开(公告)日：2019-12-26

申请号：US16013203

申请日：2018-06-20

Applicant: GM Global Technology Operations LLC

Inventor： Xinyu Du ,  Dongyi Zhou ,  Mutasim A. Salman ,  Kevin A. Cansiani ,  Xiaoyu Huang ,  Wen-Chiao Lin

IPC: B60T17/22 ,  B60T13/66

Abstract: A method of identifying a fault in a friction brake actuated by hydraulic brake pressure and configured to decelerate a vehicle road wheel includes detecting, via a first sensor, a vibration at the road wheel and communicating data indicative of the detected vibration to a controller. The method additionally includes detecting, via a second sensor, upon application of the hydraulic brake pressure, a hydraulic brake pressure variation and communicating data indicative of the detected hydraulic brake pressure variation. The method additionally includes comparing, via the controller, the data indicative of the detected vibration with a threshold vibration value and the data indicative of the detected hydraulic brake pressure variation with a threshold hydraulic brake pressure value. Furthermore, the method includes generating a sensory signal indicative of the brake fault when magnitudes of the detected vibration and the detected hydraulic brake pressure variation are greater than their respective threshold values.

公开(公告)号：US20200149993A1

公开(公告)日：2020-05-14

申请号：US16189084

申请日：2018-11-13

Applicant: GM Global Technology Operations LLC

Inventor： Jianshe Feng ,  Xinyu Du ,  Mutasim Salman ,  Kevin A. Cansiani

IPC: G01M13/045

Abstract: A machine bearing disposed on a rotatable member, such as may be present on a vehicle, is described. A method for monitoring a state of health of the machine bearing includes monitoring, via a microphone, an acoustic signal, and coincidently determining a rotational speed of the rotatable member associated with the machine bearing. The sound spectrum is correlated to the rotational speed of the rotating member, and a time-frequency analysis is executed to determine a sound spectrum. The sound spectrum is transformed to a residual spectrum. A first feature associated with a first frequency band and a second feature associated with a second frequency band are extracted from the residual spectrum. The state of health associated with the machine bearing is detected based upon the first and second features, and is communicated to a second controller.

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：US10580232B2

公开(公告)日：2020-03-03

申请号：US16055290

申请日：2018-08-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shengbing Jiang ,  Mutasim Salman ,  Xinyu Du ,  Kevin A. Cansiani

IPC: G07C5/08

Abstract: An apparatus and method that detect a condition of a vehicle component are provided. The method includes diagnosing vehicle health of a vehicle by analyzing one or more from among vehicle performance, vehicle energy usage, and vehicle vibration and acoustics, performing fault isolation on the vehicle to detect a health condition of a vehicle component corresponding to the isolated fault if the vehicle health below a predetermined threshold, monitoring the vehicle component corresponding to the isolated fault and estimating a remaining useful life of the vehicle component corresponding to the isolated fault, and performing one or more from among continuously monitoring, scheduling maintenance, providing a warning, and performing fault mitigation based on the estimated remaining useful life of the vehicle component corresponding to the isolated fault.

公开(公告)号：US11054339B2

公开(公告)日：2021-07-06

申请号：US16189084

申请日：2018-11-13

Applicant: GM Global Technology Operations LLC

Inventor： Jianshe Feng ,  Xinyu Du ,  Mutasim Salman ,  Kevin A. Cansiani

IPC: G01M13/045 ,  G01H1/00

Abstract: A machine bearing disposed on a rotatable member, such as may be present on a vehicle, is described. A method for monitoring a state of health of the machine bearing includes monitoring, via a microphone, an acoustic signal, and coincidently determining a rotational speed of the rotatable member associated with the machine bearing. The sound spectrum is correlated to the rotational speed of the rotating member, and a time-frequency analysis is executed to determine a sound spectrum. The sound spectrum is transformed to a residual spectrum. A first feature associated with a first frequency band and a second feature associated with a second frequency band are extracted from the residual spectrum. The state of health associated with the machine bearing is detected based upon the first and second features, and is communicated to a second controller.

公开(公告)号：US20200043258A1

公开(公告)日：2020-02-06

申请号：US16055290

申请日：2018-08-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shengbing Jiang ,  Mutasim Salman ,  Xinyu Du ,  Kevin A. Cansiani

IPC: G07C5/08

Abstract: An apparatus and method that detect a condition of a vehicle component are provided. The method includes diagnosing vehicle health of a vehicle by analyzing one or more from among vehicle performance, vehicle energy usage, and vehicle vibration and acoustics, performing fault isolation on the vehicle to detect a health condition of a vehicle component corresponding to the isolated fault if the vehicle health below a predetermined threshold, monitoring the vehicle component corresponding to the isolated fault and estimating a remaining useful life of the vehicle component corresponding to the isolated fault, and performing one or more from among continuously monitoring, scheduling maintenance, providing a warning, and performing fault mitigation based on the estimated remaining useful life of the vehicle component corresponding to the isolated 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：US11220251B2

公开(公告)日：2022-01-11

申请号：US16013203

申请日：2018-06-20

Applicant: GM Global Technology Operations LLC

Inventor： Xinyu Du ,  Dongyi Zhou ,  Mutasim A. Salman ,  Kevin A. Cansiani ,  Xiaoyu Huang ,  Wen-Chiao Lin

IPC: B60T17/22 ,  B60T13/66

Abstract: A method of identifying a fault in a friction brake actuated by hydraulic brake pressure and configured to decelerate a vehicle road wheel includes detecting, via a first sensor, a vibration at the road wheel and communicating data indicative of the detected vibration to a controller. The method additionally includes detecting, via a second sensor, upon application of the hydraulic brake pressure, a hydraulic brake pressure variation and communicating data indicative of the detected hydraulic brake pressure variation. The method additionally includes comparing, via the controller, the data indicative of the detected vibration with a threshold vibration value and the data indicative of the detected hydraulic brake pressure variation with a threshold hydraulic brake pressure value. Furthermore, the method includes generating a sensory signal indicative of the brake fault when magnitudes of the detected vibration and the detected hydraulic brake pressure variation are greater than their respective threshold values.

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.