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    Vehicle perception system on-line diangostics and prognostics
    4.
    发明授权
    Vehicle perception system on-line diangostics and prognostics 有权

    公开(公告)号：US10974730B2

    公开(公告)日：2021-04-13

    申请号：US16139782

    申请日：2018-09-24

    Applicant: GM Global Technology Operations LLC

    Inventor： Yao Hu ,  Wen-Chiao Lin ,  Wei Tong ,  Paul E. Krajewski

    IPC: B60W50/02 ,  G07C5/08 ,  G01C21/30 ,  G07C5/00

    Abstract: A method of on-line diagnostic and prognostic assessment of an autonomous vehicle perception system includes detecting, via a sensor, a physical parameter of an object external to the vehicle. The method also includes communicating data representing the physical parameter via the sensor to an electronic controller. The method additionally includes comparing the data from the sensor to data representing the physical parameter generated by a geo-source model. The method also includes comparing results generated by a perception software during analysis of the data from the sensor to labels representing the physical parameter from the geo-source model. Furthermore, the method includes generating a prognostic assessment of a ground truth for the physical parameter of the object using the comparisons of the sensor data to the geo-source model data and of the software results to the geo-source model labels. A system for on-line assessment of the vehicle perception system is also disclosed.

    SYSTEM AND METHOD OF PREDICTIVE FAULT MITIGATION FOR ELECTRIC POWER STEERING SYSTEM IN A VEHICLE
    5.
    发明申请
    SYSTEM AND METHOD OF PREDICTIVE FAULT MITIGATION FOR ELECTRIC POWER STEERING SYSTEM IN A VEHICLE 审中-公开

    公开(公告)号：US20200023891A1

    公开(公告)日：2020-01-23

    申请号：US16037669

    申请日：2018-07-17

    Applicant: GM Global Technology Operations LLC

    Inventor： Wen-Chiao Lin ,  Xinyu Du ,  Brian N. Siskoy

    IPC: B62D5/04 ,  G05D1/00 ,  G05D1/02 ,  G07C5/00 ,  G07C5/08

    Abstract: A method of controlling a vehicle having an electric power steering system includes generating a plurality of possible routes. Each of the plurality of possible routes that require a steering torque that is within an available torque range is identified as a system compliant route. Each of the plurality of possible routes that require an angular position of an electric motor of the electric power steering system at all time indices throughout that route that are within an available motor position range are also identified as a system compliant route. One of the identified system compliant routes is selected based on at least one selection criteria, and designated as an active route. The electric power steering system is then controlled to maneuver the vehicle along the active route. The electric power steering system is monitored as the vehicle moves along the active route to identify degradation of its capabilities.

    METHODS AND VEHICLES FOR HEALTH MONITORING VEHICLE SUBSTRATES AND COATINGS
    6.
    发明申请
    METHODS AND VEHICLES FOR HEALTH MONITORING VEHICLE SUBSTRATES AND COATINGS 审中-公开

    公开(公告)号：US20190371090A1

    公开(公告)日：2019-12-05

    申请号：US15995245

    申请日：2018-06-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Wen-Chiao Lin ,  Jingyan Wan ,  Jian Yao ,  Neeraj S. Shidore ,  Qiangfeng Xiao ,  Ming Yang ,  Paul E. Krajewski

    IPC: G07C5/08 ,  G01B7/16 ,  G01L5/00

    Abstract: Vehicles and methods are provided for monitoring the health of a substrate and a protective coating disposed on the substrate. A vehicle includes a substrate, a protective coating, a coating deformation sensor, and a controller. The protective coating is disposed overtop the substrate. The coating deformation sensor is operatively coupled with the protective coating and configured to measure a deformation value of the protective coating. The controller is configured to: determine a deformation recovery rate of the protective coating based on the deformation value; determine whether the deformation recovery rate corresponds with an expected recovery rate of the protective coating; and indicate that the protective coating may be impaired in response to determining that the deformation recovery rate does not correspond with the expected recovery rate.

    VEHICLE ELECTRONICS HIGH-RESISTANCE FAULT DETECTION AND ISOLATION
    8.
    发明申请
    VEHICLE ELECTRONICS HIGH-RESISTANCE FAULT DETECTION AND ISOLATION 审中-公开

    公开(公告)号：US20200158772A1

    公开(公告)日：2020-05-21

    申请号：US16196023

    申请日：2018-11-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Xinyu Du ,  Wen-Chiao Lin ,  Yilu Zhang

    IPC: G01R31/00 ,  G01R31/04 ,  B60L3/00 ,  G01R31/3842

    Abstract: A vehicle electronics high-resistance fault diagnosis system is provided, as well as a method of detecting and isolating a high-resistance fault in vehicle electronics of a vehicle. The method includes the steps of determining electrical data for one or more portions of the vehicle electronics, wherein the electrical data includes voltage data and/or current data concerning the one or more portions of the vehicle electronics; calculating a resistance for a plurality of resistance sets of the vehicle electronics based on the electrical data, wherein each of the plurality of resistance sets includes one or more electrical components; obtaining a resistance set threshold for each of the plurality of resistance sets of the vehicle electronics; for each of the plurality of resistance sets, evaluating whether the resistance of the resistance set exceeds the resistance set threshold; and based on the evaluating step, identifying one or more high-resistance fault candidates.

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