摘要:
An aircraft terrain avoidance system include a device having a first unit knowing a profile of the terrain that is located at the front of the aircraft, a second unit for determining an avoidance trajectory, a third unit which is connected to the first and second units and used to verify if there is a terrain collision risk for the aircraft, a fourth unit for emitting an alarm signal in the event of detection of a collision risk by the third unit, at least one aircraft performance database relating to an avoidance maneuvering gradient which can be flown by the aircraft according to particular flight parameters, and a fifth unit for determining the effective values of the particular parameters during the flight of the aircraft. The third unit is formed such that it is possible to determine the avoidance trajectory according to information received from the database and the fifth unit.
摘要:
The device (1) comprises a first means (2) knowing the profile of the terrain at least that which is located at the front of the aircraft, a second means (3) for determining an avoidance trajectory, a third means (4) which is connected to the first and second means (2, 3) and used to verify if there is a terrain collision risk for the aircraft, a fourth means (7) for emitting an alarm signal in the event of detection of a collision risk by the third means (4), at least one aircraft performance data base (Bi) relating to an avoidance maneuvering gradient which can be flown by the aircraft according to particular flight parameters, and a fifth means (9) for determining the effective values of the particular parameters during the flight of the aircraft, wherein the third means (3) is formed in such a way that it is possible to determine the avoidance trajectory according to the information received from the data base (Bi) and the fifth means (9).
摘要:
A method and device for calculating a target speed of an aircraft may include a flight point time determining section that determines when the aircraft actually gets to a particular flight point, taking account of the aircraft's current target speed. A time interval calculating section calculates a time interval between the predetermined time at which the aircraft must get to the particular flight point and the determined actual time. A speed updating section updates the target speed and applies the updated target speed to the aircraft if the calculated time interval is greater than a duration of comparison, which is variable and depends on the actual distance so as to decrease when the actual distance decreases.
摘要:
The device includes means for determining a plurality of successive standard flight sections (S1A, S2A, S3A, S4A) comprising a level and a transition phase for reaching this level, and means for joining together these successive flight sections (S1A, S2A, S3A, S4A) in order to form the vertical profile (PV1) of the flight plan.
摘要:
Disclosed is a method and device for guiding an aircraft flying along a flight trajectory. The flight trajectory has at least one constrained section, and the aircraft flies at a required speed within the constrained section to comply with a required arrival time at a predetermined waypoint in the constrained section. Auxiliary speed setpoints are determined to guide the aircraft to arrive at an auxiliary arrival tune at an auxiliary waypoint, with the auxiliary speed setpoints being applied by a guidance system to guide the aircraft.
摘要:
A device for constructing and securing a low altitude flight path intended to be followed by an aircraft. The device includes a first processing unit which has a Design Assurance Level (DAL) C requirement level and which determines a low altitude flight path, using data coming from a first database qualified according to a Data Process Assurance Level (DPAL) 2 standard, and a second processing unit which has a DAL A requirement level and which checks the flight path determined by said first processing unit, using data corning from a second database qualified according to a DPAL1 standard.
摘要:
The vertical profile management device includes a flight management system unit that selects a plurality of successive standard cruise sections, each comprising a level phase and a transition phase. The cruise sections are defined by a plurality of features, including waypoints corresponding to a section starting point and a section ending point, a transition type, a transition mode, a transition speed, a level altitude, and a level speed. The flight management system unit also joins together the successive cruise sections in order to form a vertical profile of a flight plan. The cruise sections are configured to be added, removed, or re-sequenced in the flight plan because each section ending point is configured to be the section starting point of a next cruise section in the series.
摘要:
The device (1) comprises means (2) for determining the actual time at which the aircraft gets to a particular flight point, taking account of a current target speed, means (3) for calculating a time interval defined between the predetermined time at which the aircraft must get to the particular flight point and said actual time, means (5) for comparing this time interval with a duration of comparison, means (7) for updating the target speed, which is applied to the aircraft, if this time interval is greater than the duration of comparison, means (10) for determining the actual distance between the current position of the aircraft and the particular flight point, and means (11) for determining said duration of comparison which is variable and which depends on the actual distance in such a way as to decrease when the actual distance decreases.