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    Detection and reconstruction of sensor faults
    2.
    发明授权
    Detection and reconstruction of sensor faults 有权

    公开(公告)号：US10204461B2

    公开(公告)日：2019-02-12

    申请号：US15214162

    申请日：2016-07-19

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shih-Ken Chen ,  Nikolai K. Moshchuk ,  Bakhtiar B. Litkouhi ,  Reza Zarringhalam ,  Amir Khajepour ,  William Melek

    IPC: B60W50/02 ,  G07C5/08 ,  B60W50/00 ,  G05B23/02

    Abstract: Methods and systems are provided for detecting faults in a sensor and reconstructing an output signal without use of the faulty sensor. In one embodiment, a method includes: receiving, by a processor, sensor data indicating a measured value from a first sensor; receiving, by a processor, sensor data indicating measured values from a plurality of other sensors; computing, by a processor, virtual values based on a vehicle model and the sensor data from the plurality of other sensors; computing, by a processor, a residual difference between the measured value from the first sensor and the virtual values; detecting, by a processor, whether a fault exists in the first sensor based on the residual difference; and when a fault in the sensor is detected, generating, by a processor, a control value based on the virtual values instead of the measured value.

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