Empty fuel level detection cross-check
US7631556B2 · kind B2 · utility
4Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Sep 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F25/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fuel level monitoring system for a fuel system having a primary fuel tank and a secondary fuel tank includes a fuel level sensor that is disposed within the secondary fuel tank and that generates a first signal. An empty switch is disposed within the secondary fuel tank and generates a second signal. A control module determines a condition of one of the fuel level sensor and the empty switch based on the first signal, the second signal and a plurality of signal thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.