Enroute weight computer for aircraft
US4494210A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1981 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Dec 21, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/07
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measure of the enroute weight of an aircraft is continuously provided by determining the zero fuel weight during takeoff, adding the weight of total fuel as measured by fuel quantity sensors, interrupting the latter measure and holding its then current value whenever the fuel quantity sensors may be in error, such as when the aircraft is not level or during aircraft accelerations, and during this time computing the rate of change of aircraft weight as a function of aerodynamic and engine parameters and subtracting the time integral of this computed value from the held fuel quantity sensor value. Upon the aircraft resuming level, unaccelerated flight, the integrator is reset and the sensed fuel quantity measure restored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.