Detecting anomalies in fault code settings and enhancing service documents using analytical symptoms
First Claim
1. A method for identifying a root cause of a fault in a serviced vehicle based on anomalies identified in parameter identification data and performing corrective actions, the method comprising the steps of:
- executing a diagnostic software routine for retrieving diagnostic trouble codes used to identify faults in an operation of the serviced vehicle;
retrieving parameter identification data associated with the diagnostic trouble codes identified with a detected fault;
collecting on a computer parameter identification data from a plurality of vehicles experiencing the diagnostic trouble codes;
generating a first set of diagnostic rules, the first set of diagnostic rules identifying vehicle operating parameters for executing a diagnostic trouble code algorithm or for triggering a diagnostic trouble code;
generating a second set of diagnostic rules, the second set of diagnostic rules identifying vehicle operating parameters used for selecting field failure data obtained when the diagnostic trouble code is triggered;
extracting statistically significant rules from the second set of diagnostic rules;
applying each of the first set of rules and the statistically significant rules cooperatively to the parameter identification data for identifying a subset of the parameter identification data that represents anomalies;
a subject matter expert analyzing the anomalies for identifying a root cause of the fault; and
performing corrective actions based on the identified root cause analysis.
3 Assignments
0 Petitions
Accused Products
Abstract
A method is provided for identifying a root cause of a fault in a serviced vehicle based on analytical symptoms. Parameter identification data associated with identified DTCs is retrieved. Parameter identification data from a plurality of vehicles experiencing the DTCs is collected. A first set of diagnostic rules is generated that identify vehicle operating parameters for executing a DTC algorithm or for triggering a DTC. A second set of diagnostic rules is generated that identify vehicle operating parameters used for selecting field failure data obtained when the DTC is triggered. Statistically significant rules are extracted from the second set of diagnostic rules. The first set of rules and the statistically significant rules are cooperatively applied to the parameter identification data for identifying a subset of the parameter identification data that represents anomalies. A subject matter expert analyzes the anomalies for identifying a root cause of the fault.
11 Citations
13 Claims
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1. A method for identifying a root cause of a fault in a serviced vehicle based on anomalies identified in parameter identification data and performing corrective actions, the method comprising the steps of:
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executing a diagnostic software routine for retrieving diagnostic trouble codes used to identify faults in an operation of the serviced vehicle; retrieving parameter identification data associated with the diagnostic trouble codes identified with a detected fault; collecting on a computer parameter identification data from a plurality of vehicles experiencing the diagnostic trouble codes; generating a first set of diagnostic rules, the first set of diagnostic rules identifying vehicle operating parameters for executing a diagnostic trouble code algorithm or for triggering a diagnostic trouble code; generating a second set of diagnostic rules, the second set of diagnostic rules identifying vehicle operating parameters used for selecting field failure data obtained when the diagnostic trouble code is triggered; extracting statistically significant rules from the second set of diagnostic rules; applying each of the first set of rules and the statistically significant rules cooperatively to the parameter identification data for identifying a subset of the parameter identification data that represents anomalies; a subject matter expert analyzing the anomalies for identifying a root cause of the fault; and performing corrective actions based on the identified root cause analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification