Automatic Method And System For Aiding In The Piloting Of An Aircraft

An automatic method for aiding in the piloting of an aircraft, making it possible to ensure the availability of at least an automatic pilot and/or a thrust regulation device which can be controlled as a function of an item of aircraft speed information, the automatic pilot corresponding to an automatic piloting system and/or a flight director, the aircraft speed information item being determined from one more sources of information, the automatic pilot and/or the thrust regulation device being configured to operate according to a first current guidance mode and an approach capability selected by a pilot of the aircraft included in a first set of selectable guidance modes and of selectable approach capabilities, the method comprising:

• a surveillance step, implemented by a surveillance module, including being able to detect the loss of one or more of said one or more sources of information making it possible to determine the item of aircraft speed information;
• in case of detection of a loss of at least one information source, the method further comprising:
• a first determination step, implemented by a determination module, including choosing a second predetermined set of selectable guidance modes and of selectable approach capabilities as a function of the information source or sources whose loss was detected in the surveillance step, the second set being a subset of the first set;
• a first step of use, implemented by a using module, including making the automatic pilot and/or the thrust regulation device operate according to a second current guidance mode and an approach capability forming part of the second set.