Smart fuel tank module
US5613398A · kind A · utility
9Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1994 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for collecting liquid level data for any composition of fuel contained in a vehicle fuel tank and for transmitting this data via a multiplex bus to a central vehicle computer. A first capacitor stores a charge proportional to the level of a full fuel tank. A second capacitor stores a charge proportional to the instant level of the fuel in the tank. A micro-controller in communication with the first and second capacitors and with the multiplex bus for controlling the discharge of the capacitors, The micro-controller determines the absolute level of the fuel and transmits the data to the multiplex bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.