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：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：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：US11133771B2

公开(公告)日：2021-09-28

申请号：US16702877

申请日：2019-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jiyu Zhang ,  Siddharth Ballal ,  Lei Hao ,  Wesley G. Zanardelli ,  Bojian Cao ,  Mutasim Salman

IPC: H02P29/028 ,  B60W10/08 ,  H02P29/024

Abstract: An electric drive system of a vehicle comprises a motor, a position sensor, an inverter, sensors to sense current and voltage supplied to the motor, and a controller to control the motor by controlling the inverter based on data from the position sensor and the sensors and a torque command. The controller estimates a motor torque using a motor model, calculates the motor torque, and generates a first state of health for the electric drive system based on a difference between the estimated and calculated motor torques. The controller generates, in response to the first state of health being less than or equal to a first threshold, a second state of health for at least one of the position sensor, the sensors, and the motor, and determines whether one of the position sensor, the sensors, and the motor is faulty based on the first and second states of health.

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.