Method and device for displaying a symbology for assisting the piloting of an aircraft during a landing phase

A device for displaying a symbology for assisting piloting of an aircraft in a phase of landing on a runway in association with a piloting assistance unit for assisting piloting in a landing phase, the piloting assistance unit operating in at least a first operating mode and a second operating mode, the piloting assistance unit being configured to emit a signal representative of its operating mode,

• the device comprising:
• a display unit configured to display the symbology;
• a first determination module comprising one or more processors configured for determining characteristics of the runway, determining coordinates of an end of runway margin corresponding to a predetermined margin before a downstream end of the runway in a direction of landing of the aircraft, and determining a distance between a beginning of the runway and a runway vacate point and coordinates of the runway vacate point on a reference line marking the runway, based at least partially on signals coming from an airport database;
• a second determination module comprising one or more processors configured for repetitively determining a run distance corresponding to a distance necessary for the aircraft to attain a run speed, when the piloting assistance unit is configured to transmit to the second determination module a signal representative of the first operating mode;
• a first transmission module comprising a transmitter configured for repetitively transmitting a set of signals causing the display unit to display a symbol representative of the run distance, to display at least one symbol representative of the characteristics of the runway, to display a symbol representative of the vacate point, and to display a symbol representative of the predetermined margin on the basis of the coordinates of the end of runway margin;
• and
• a second transmission module comprising a transmitter configured to transmit coordinates of the vacate point to a braking unit of the aircraft configured to control brakes and thrust reversals of the aircraft based at least partially on the aircraft's proximity to the vacate point;
• wherein the piloting assistance unit is configured to automatically operate in the first operating mode when the aircraft is below a predetermined altitude but has not landed yet.

An aircraft comprising a display device, the display device comprising:

• a device for displaying a symbology for assisting piloting of an aircraft in a phase of landing on a runway in association with a piloting assistance unit for assisting piloting in a landing phase, the piloting assistance unit operating in at least a first operating mode and a second operating mode, the piloting assistance unit being configured to emit a signal representative of its operating mode, wherein the display device comprises:
• a display unit configured to display the symbology;
• a first determination module comprising one or more processors configured for determining characteristics of the runway, determining coordinates of an end of runway margin corresponding to a predetermined margin before a downstream end of the runway in a direction of landing of the aircraft, and determining a distance between a beginning of the runway and a runway vacate point and coordinates of the runway vacate point on a reference line marking the runway, based at least partially on signals coming from an airport database;
• a second determination module comprising one or more processors configured for repetitively determining a run distance corresponding to a distance necessary for the aircraft to attain a run speed, when the piloting assistance unit transmits to the second determination module a signal representative of the first operating mode;
• a first transmission module comprising a transmitter configured for repetitively transmitting a set of signals causing the display unit to display a symbol representative of the run distance, to display at least one symbol representative of the characteristics of the runway and to display a symbol representative of the predetermined margin based at least partially on the coordinates of the end of runway margin;
• and
• a second transmission module comprising a transmitter configured to transmit coordinates of the vacate point to a braking unit of the aircraft configured to control brakes and thrust reversals of the aircraft based at least partially on the aircraft's proximity to the vacate point;
• wherein the piloting assistance unit is configured to automatically operate in the first operating mode when the aircraft is below a predetermined altitude but has not landed yet.