System and method for determining aircraft hard landing events from inertial and aircraft reference frame data
US7589645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2006 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Nov 27, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2045/008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention allows for the precise determination of an aircraft's landing conditions and whether an aircraft has experienced a hard landing that exceeds the allowable design loads of the aircraft's landing gear. The system comprises a computer that measures signals from an inertial measurement unit (IMU) at high data rates (e.g. 100 Hz) and also records signals from the aircraft avionics data bus. The computer compares the output from the inertial measurement unit's accelerometers against at least one predetermined threshold parameter to determine whether the aircraft's three dimensional landing deceleration is safely within the design allowances or other regulatory limitations, or whether the landing event needs further investigation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.