摘要:
The invention relates to a method of managing the braking of an aircraft having landing gear with wheels fitted with friction brakes and with auxiliary brakes that enable energy to be dissipated by means other than friction, the method comprising the steps of: when braking is requested, testing the braking parameters to determine whether the aircraft is in a braking situation for which the friction brakes are not essential for providing the requested braking; and performing the requested braking by giving priority to actuating the auxiliary brakes so long as the aircraft remains within said braking situation, and actuating the friction brakes only if the aircraft departs from said braking situation.
摘要:
The invention relates to a management method for managing a turning movement of an aircraft taxiing on the ground, the aircraft having wheels each fitted with an independent drive device, in which method commands are generated for the independent drive devices so that at least some of those devices contribute to the turning movement. According to the invention, the method comprises the steps of: estimating at each instant during the turning movement: an instantaneous total power developed by all of the independent drive devices in response to the commands; and an instantaneous mean angular acceleration for all of the wheels; and adapting the commands to the independent drive devices such that the total instantaneous power developed by all of the independent drive devices is minimized, while conserving the mean angular acceleration.
摘要:
A system and method for the anticipated detection of a bend on a portion of road taken by a motor vehicle comprising the following steps: establishing, by means of a first system, called as the navigation system, a first set of information on the bend in question, the first set of information being associated with a first confidence index; establishing, by means of a second system, called as the image processing system, a second set of information on the bend in question, the second set of information being associated with a second confidence index; and establishing, from the first set of information and the second set of information and by taking into account the first confidence index and the second confidence index, a third set of information on the bend in question.
摘要:
An automatic process is provided for automatically determining a current speed limitation on a road being used by a motor vehicle, in which by means of a first system, making use in particular of a GPS aerial and cartographical details, a first set of information is established, in which at least one likely speed limitation is associated with a confidence index; by means of a second system, involving the use of a camera and image processing applications capable of identifying roadside speed limitation panels, a second set of information is established comprising at least one probable speed limitation, wherein the basis of the first and second sets of information, the current speed limitation is determined along the road in question.
摘要:
The invention relates to a method of managing a steering control for a steerable portion of an aircraft undercarriage, the method comprising implementing servo-control to servo-control an electromechanical steering actuator on an angular position setpoint, wherein, according to the invention, the servo-control implements a control relationship H∞ type, the position and speed information being delivered by means of a fieldbus of deterministic type to a computer that implements the servo-control.
摘要:
A system and method for the anticipated detection of a bend on a portion of road taken by a motor vehicle comprising the following steps: establishing, by means of a first system, called as the navigation system, a first set of information on the bend in question, the first set of information being associated with a first confidence index; establishing, by means of a second system, called as the image processing system, a second set of information on the bend in question, the second set of information being associated with a second confidence index; and establishing, from the first set of information and the second set of information and by taking into account the first confidence index and the second confidence index, a third set of information on the bend in question.
摘要:
A method for determining, in a predictive manner, types of road situations of a vehicle comprising the following steps: points defining at least one possible path situated in front of the vehicle are obtained from a navigation system, for each point, at least one attribute describing the type of road environment associated with this point is extracted from the navigation system, the attribute of this point is compared with that of the preceding point, if the attributes are identical, a driving situation is deduced from this such that said driving situation is a function of the attribute of the preceding point, if the two attributes are different, an end of driving situation is deduced from this, and a transition to a new driving situation is determined depending on the attribute of this point, in such a manner as to define a succession of driving situations for this path.
摘要:
The invention relates to a method of managing a steering control for a steerable portion of an aircraft undercarriage, the method comprising implementing servo-control to servo-control an electromechanical steering actuator on an angular position setpoint, wherein, according to the invention, the servo-control implements a control relationship H∞ type, the position and speed information being delivered by means of a fieldbus of deterministic type to a computer that implements the servo-control.