Fault model augmentation systems and methods

US11120646B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Shiming Duan · Ann Arbor, US
• Chaitanya Sankavaram · Rochester Hills, US
• Azeem Sarwar · Rochester Hills, US
• Ibrahim Haskara · Chesterfield Township, US
• Chunhao J. Lee · Troy, US
• Chen-Fang Chang · Troy, US

Key dates

• Filing date: May 23, 2019
• Grant date: Sep 14, 2021
• Expiry date: Jan 21, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06N20/10
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A fault diagnostic system includes: memory including a fault model, the fault model including: a plurality of failure modes of a vehicle; and symptoms respectively associated with each of the failure modes; an updating module configured to: based on a data set, determine a new failure mode that is not already included in the fault model and new symptoms indicative of the occurrence of the new failure mode; modify the fault model by: adding the new failure mode to the fault model; and adding the new symptoms to the fault model in association with the new failure mode; and re-save the fault model in the memory.