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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.:

US 9952049 B1

PDFFull Text
Date of Patent:
Apr. 24, 2018

Filed:

Sep. 10, 2015

Methods and apparatus for performance assessment of a vehicle onboard navigation system using adaptive stochastic filtering

Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Xian Zhang, Wixom, MI (US);

Xiaofeng Frank Song, Novi, MI (US);

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);

Attorney:

Lorenz & Kopf, LLP

Primary Examiner:

Mahmoud S Ismail

Int. Cl.
CPC ...
G01C 21/30 (2006.01); G01C 21/20 (2006.01); G01C 21/16 (2006.01); G01C 21/34 (2006.01); G01C 21/26 (2006.01); G01S 19/40 (2010.01);
U.S. Cl.
CPC ...
G01C 21/20 (2013.01); G01C 21/16 (2013.01); G01C 21/165 (2013.01); G01C 21/26 (2013.01); G01C 21/34 (2013.01); G01S 19/40 (2013.01);
Abstract

A method for monitoring performance of a navigation system onboard a vehicle is provided. The method obtains, at a vehicle electronic control unit (ECU), a triangulated vehicle location and vehicle motion data, the triangulated vehicle location obtained from the navigation system; computes an estimated vehicle location, using the triangulated vehicle location and the vehicle motion data; calculates a probability that the estimated vehicle location exists within an error bound of the triangulated vehicle location; and when the probability indicates that the estimated vehicle location does not exist within the error bound, performs a task onboard the vehicle.

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Zhang, Xian. (2018). Methods and apparatus for performance assessment of a vehicle onboard navigation system using adaptive stochastic filtering (U.S. Patent No. 9952049). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9952049

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