The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2019
Filed:
Jul. 19, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Shih-Ken Chen, Troy, MI (US);
Nikolai K. Moshchuk, Grosse Pointe, MI (US);
Bakhtiar B. Litkouhi, Washington, MI (US);
Reza Zarringhalam, Oshawa, CA;
Amir Khajepour, Waterloo, CA;
William Melek, Mississauga, CA;
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
UNIVERSITY OF WATERLOO, Waterloo, CA;
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.