Diagnostic system and method for processing continuous and intermittent faults
US8868282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0235
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for diagnosing a device of a vehicle, includes: generating samples of a parameter of the device; indicating whether each of the samples passed or failed based on comparisons of the samples with one of a predetermined value and a predetermined range; tracking a first number of consecutive samples compared, a second number of the first number of samples that failed, a third number of the first number of samples that failed consecutively, and a fourth number of a last predetermined number of samples compared that failed; selecting one of a normal control mode, a temporary default action mode and a permanent default action mode based on the first, second, third, and fourth numbers; and selectively setting a diagnostic trouble code (DTC) in memory when in the permanent default action mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.