Patent ID: 8843249

Claim:
A passivation method for validating guidance orders by passivation in an aircraft having at least one calculation stage communicating with a flight control system the method comprising: providing the calculation stage with an architecture comprising at least N pieces of equipment, each of which is able to generate guidance orders, N being an integer higher than or equal to 3, wherein at least two of the pieces of equipment are primary equipment generating first type guidance orders that are selectively used by the flight control system, and at least one other of the pieces of equipment is auxiliary equipment generating second type guidance orders used only to compare and validate the first type guidance orders from the primary equipment; and comparing, automatically and repeatedly by a passivation device, the first type guidance orders being generated by and the second type guidance order being generated by the auxiliary equipment; and selecting, by the passivation device, as a function of results of the comparisons, one of the first type guidance orders, and transmitting the selected first type guidance order to the flight control system as a passivated guidance order that is validated for use by the flight control system.