Method and system for detecting faults in an electronic engine control module
US7472337B2 · kind B2 · utility
1Cited by
20References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Jan 28, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An algorithm for detecting a fault in an ECM output signal by determining a status of the output signal, incrementing an error timer and a retry timer when the status is abnormal, incrementing a retry counter when the retry timer reaches a maximum retry time, and reporting an intermittent fault if the retry counter reaches a retry limit before the error timer reaches an error timer maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.