Method and device for assisting the lateral control of an aircraft running on a runway
First Claim
1. A method for assisting the lateral control of an aircraft (A) running on the ground on a runway (2), according to which method:
- there is measured a lateral deviation (LOCDEV) of the aircraft (A) relative to a lateral alignment beam, which is transmitted by a radio transmitter (4) installed on the ground downstream of the downstream end (2A) of said runway (2), said lateral deviation (LOCDEV) representing an angular deviation defined in a horizontal plane between, on the one hand, a straight line (5) passing through said radio transmitter (4) and through a detector (3) which is installed on the aircraft and which is able to detect said lateral alignment beam and, on the other hand, the centerline (6) of the runway (2);
there is calculated a first distance (DLOC) which is defined in the horizontal plane, along the runway (2), between the position (Pp) of the pilot in the cockpit (8) of the aircraft (A) and said radio transmitter (4);
there is determined, at least from said lateral deviation (LOCDEV) thus measured and from said first distance (DLOC) thus calculated, a line (12) intended to correspond to the centerline (6) of the runway (2); and
this line (12) is displayed on a display screen (15) of a head up display device (13) of the aircraft (A), superimposed on the environment existing in front of the aircraft (A), this line (12) being displayed as a true representation such that it is shown superimposed on said centerline (6) of the runway (2), wherein, in order to determine said line (12), there is determined a first point (P1) and a second point (P2), said first point (P1) corresponding to the position of said radio transmitter (4), seen by the pilot of the aircraft (A) and being positioned horizontally according to a lateral deviation value (DEVL) and vertically according to an elevation value (Vsite), said second point (P2) illustrating the orientation on the ground of said lateral alignment beam and being placed on a horizon line (17) provided with a heading scale (26) relative to the heading (18) of the aircraft (A), and wherein said line (12) is displayed on said display screen (15) in such a way as to pass through said first and second points (P1, P2).
2 Assignments
0 Petitions
Accused Products
Abstract
Method and device for assisting the lateral control of an aircraft running on a runway.
The system (1) comprises a detector (3) for measuring a lateral deviation of the aircraft relative to a lateral alignment beam transmitted by a radio transmitter installed on the ground, the lateral deviation representing an angular deviation between a straight line passing through the radio transmitter and the detector (3) and the centerline of the runway, a calculating means (7) for calculating a first distance which is defined along the runway, between the position of the pilot in the cockpit and the radio transmitter, a central unit (9) for determining from said lateral deviation and said first distance a line intended to correspond with the centerline of the runway, and a head up display device (13) for displaying that line on a display screen (15), superimposed on the environment existing in front of the aircraft, this line being displayed such that it is shown superimposed on said centerline of the runway.
-
Citations
12 Claims
-
1. A method for assisting the lateral control of an aircraft (A) running on the ground on a runway (2), according to which method:
-
there is measured a lateral deviation (LOCDEV) of the aircraft (A) relative to a lateral alignment beam, which is transmitted by a radio transmitter (4) installed on the ground downstream of the downstream end (2A) of said runway (2), said lateral deviation (LOCDEV) representing an angular deviation defined in a horizontal plane between, on the one hand, a straight line (5) passing through said radio transmitter (4) and through a detector (3) which is installed on the aircraft and which is able to detect said lateral alignment beam and, on the other hand, the centerline (6) of the runway (2);
there is calculated a first distance (DLOC) which is defined in the horizontal plane, along the runway (2), between the position (Pp) of the pilot in the cockpit (8) of the aircraft (A) and said radio transmitter (4);
there is determined, at least from said lateral deviation (LOCDEV) thus measured and from said first distance (DLOC) thus calculated, a line (12) intended to correspond to the centerline (6) of the runway (2); and
this line (12) is displayed on a display screen (15) of a head up display device (13) of the aircraft (A), superimposed on the environment existing in front of the aircraft (A), this line (12) being displayed as a true representation such that it is shown superimposed on said centerline (6) of the runway (2), wherein, in order to determine said line (12), there is determined a first point (P1) and a second point (P2), said first point (P1) corresponding to the position of said radio transmitter (4), seen by the pilot of the aircraft (A) and being positioned horizontally according to a lateral deviation value (DEVL) and vertically according to an elevation value (Vsite), said second point (P2) illustrating the orientation on the ground of said lateral alignment beam and being placed on a horizon line (17) provided with a heading scale (26) relative to the heading (18) of the aircraft (A), and wherein said line (12) is displayed on said display screen (15) in such a way as to pass through said first and second points (P1, P2). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
-
-
10. A system for assisting the lateral control of an aircraft (A) running on a runway (2), said system (1) comprising:
-
a detector (3) for measuring a lateral deviation (LOCDEV) of the aircraft (A) with respect to a lateral alignment beam, which is transmitted by a radio transmitter (4) installed on the ground downstream of the downstream end (2A) of said runway (2), said lateral deviation (LOCDEV) representing an angular deviation defined in a horizontal plane between, on the one hand, a straight line (5) passing through said radio transmitter (4) and said detector (3) and, on the other hand, the centerline (6) of said runway (2);
a calculating means (7) for calculating a first distance (DLOC) which is defined in the horizontal plane, along said runway (2), between the position (Pp) of the pilot in the cockpit (8) of the aircraft (A) and said radio transmitter (4);
a central unit (9) for determining, at least from said measured lateral deviation (LOCDEV) and said first calculated distance (DLOC), a line (12) intended to correspond with the centerline (6) of the runway (2); and
a head up display device (13) for displaying that line (12) on a display screen (15), superimposed on the environment existing in front of the aircraft (A), this line (12) being displayed according to a true representation in such a way as to be shown superimposed on said centerline (6) of the runway (2), wherein;
said central unit (9) is produced in such a way as to determine a first point (P1) and a second point (P2), said first point (P1) corresponding to the position of said radio transmitter (4), seen by the pilot of the aircraft (A) and being positioned horizontally according to a lateral deviation value DEVL and vertically according to an elevation value Vsite, said second point (P2) illustrating the orientation on the ground of said lateral alignment beam and being placed on a horizon line (17) provided with a heading scale (26) relative to the heading (18) of the aircraft (A); and
said display device (13) is produced in such a way that said line (12) is displayed on said display screen (15) in such a way as to pass through said first and second points (P1, P2). - View Dependent Claims (12)
-
Specification