Two-way architecture with redundant CCDL's
AssigneesSafran Electronics & Defense, Safran Helicopter Engines
InventorsCeline Liu, Nicolas Marti, Stephen Langford
Life of this patent
Estimating the term…
Abstract
A flight control system of an aircraft including a first processing unit, a second processing unit, communication means configured to establish a first two-way digital link and as second two-way digital link between the first processing unit and the second processing unit. The second link is redundant with the first link, and the first link and second link are likely to be active concomitantly. The system further includes backup communication means enabling data exchanges between the first processing unit and the second processing unit in the case of a failure in the first link and second link. The backup communication means includes an array of sensors or actuators and/or a secure onboard network for the avionics.
Claims6
A flight control system of an aircraft comprising:
- a first processing unit,
- a second processing unit,
- communication means configured for establishing a first bidirectional digital link and a second bidirectional digital link between the first processing unit and the second processing unit,
- said second bidirectional digital link being redundant with the first bidirectional digital link,
- wherein said first and second bidirectional digital links may be active concomitantly,
- said flight control system further comprising backup communication means giving the possibility of ensuring exchanges of data between the first and second processing units whenever failures of the first and second bidirectional digital links occur,
- said backup communication means comprising at least one device part including at least one of:
- a network of sensors, a network of actuators and an on-board secure network for avionics.
Dependencies are inferred from the claim text.