发明名称 |
FAULT DIAGNOSIS AND PROGNOSIS USING DIAGNOSTIC TROUBLE CODE MARKOV CHAINS |
摘要 |
A system and method for fault diagnosis includes receiving information defining a relationship between failure modes and diagnostic trouble codes and extracting diagnostic trouble code data, including set times, frequency data and diagnostic trouble code sequence information for a plurality of diagnostic trouble codes relating to a plurality of failure modes. The system and method further include constructing a Markov chain using the diagnostic trouble code data for each of the plurality of failure modes, training the Markov chain to learn a set of state parameters using the diagnostic trouble code data, and computing a likelihood of a diagnostic trouble code sequence for each of the plurality of failure modes using the trained Markov chains.
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申请公布号 |
US2011118932(A1) |
申请公布日期 |
2011.05.19 |
申请号 |
US20090620466 |
申请日期 |
2009.11.17 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
SINGH SATNAM;KHARE VINEET R.;CHOUGULE RAHUL |
分类号 |
G06F7/00;G06F11/07;G06F15/18;G06N5/02 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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地址 |
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