Thermistor-based fuel sensor
US7698939B2 · kind B2 · utility
1Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2007 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Feb 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for sensing a fuel level includes sensors that sense the fuel level and a voltage source that applies a constant voltage to the sensors for a predetermined time. The system includes a control module that measures outputs of the sensors at a beginning and at an end of the predetermined time. The control module determines a number of the sensors that are submersed in fuel or air based on the outputs and calculates the fuel level based on the number of the sensors that are submersed in fuel or air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.