Method and system for correlating a pressure sensor for a fuel system
US8353273B2 · kind B2 · utility
17Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2010 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Jan 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86397
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control module and method for operating the same includes a diurnal control valve module that opens a diurnal control valve (DCV) and an evaporative leak check module (ELCM) diverter valve control module that switches on an ELCM diverter valve. The control module includes a correlation module performs a correlation of a ELCM pressure signal and a fuel tank pressure signal and that generates a fault signal in response to the correlation when the DCV valve is open and the ELCM diverter valve is on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.