Abstract: The invention relates to a braking system architecture for an aircraft fitted with electromechanical brakes including at least one electromechanical actuator. In accordance with the invention, the architecture comprises at least one proximity unit disposed in the proximity of the brakes at the bottom of the undercarriage and including input/output means for collecting and calibrating at least signals coming from sensors associated with the brakes, and for transmitting the signals as processed in this way to control members for controlling the actuators by means of a communications bus running along the undercarriage, the proximity unit further including control means for controlling the blocking members of the actuators.

Abstract: The invention provides airplane landing gear comprising at least one axle for carrying at least one brake-and-wheel assembly comprising a rim mounted to rotate on the axle and a stack of disks and a support carrying modular electromechanical actuators that are individually removable, the landing gear and the brake-and-wheel assembly being organized in such a manner that each actuator is in at least one of the following configurations: an empty space of dimensions sufficient for receiving the actuator extends on a disassembly path directly facing the actuator when it is in an operating position; the actuator is associated with displacement means enabling it to be moved from an operating position to a disassembly position, an empty space of dimensions sufficient to receive the actuator extending along a disassembly path directly facing the actuator when it is in the disassembly position.

Abstract: The invention relates to a braking system architecture for an aircraft fitted with electromechanical brakes including at least one electromechanical actuator. In accordance with the invention, the architecture comprises at least one proximity unit disposed in the proximity of the brakes at the bottom of the undercarriage and including input/output means for collecting and calibrating at least signals coming from sensors associated with the brakes, and for transmitting the signals as processed in this way to control members for controlling the actuators by means of a communications bus running along the undercarriage, the proximity unit further including control means for controlling the blocking members of the actuators.

Abstract: The invention relates to an actuator for an electromechanical brake, the actuator comprising a pusher and a first drive member arranged to move the pusher in register with a stack of disks and to apply a braking pressure to the stack of disks, the actuator including a second drive member comprising a piezoelectric assembly suitable for modulating the braking pressure applied to the stack of disks. According to the invention, the piezoelectric assembly is disposed inside the actuator so as to present an end that is stationary.

Abstract: The invention relates to an actuator for an electromechanical brake, the actuator comprising a pusher and a first drive member arranged to move the pusher in register with a stack of disks and to apply a braking pressure to the stack of disks, the actuator including a second drive member comprising a piezoelectric assembly suitable for modulating the braking pressure applied to the stack of disks. According to the invention, the piezoelectric assembly is disposed inside the actuator so as to present an end that is stationary.

Abstract: A method for detecting a passage associated with an access door, for example a boarding door or a building entrance, which is secured in order to ensure passage of a single person includes producing the profile of an entering person by a first level detection device formed by the vertical bars of active infrared cells (D1), and opening or holding closed the access door according to the profile.

Abstract: The invention relates to a protection method for protecting from overheating in a vehicle brake system comprising at least one brake provided with at least one electromechanical actuator which comprises a pusher actuated by an electric motor to apply a force selectively onto friction elements of the brake, it being possible for the brake system to operate, at the request of the pilot of the vehicle, either in a controlled mode in which the pusher of the actuator is actuated by the electric motor so as to apply a braking force selectively to the friction elements in response to a braking instruction, or in a parking mode in which the pusher of the actuator is locked in a position in which it exerts a parking force on the friction elements.

Abstract: The invention relates to a method of managing a parking force in a brake system for a vehicle equipped with at least one electric brake having at least one electromechanical actuator which comprises a pusher actuated by an electric motor to apply a force selectively onto friction elements of the brake, the method including the step of causing the pusher to exert a parking force that is initially equal to a nominal parking force on the friction elements so that the parking force is maintained in the absence of drive from the electric motor. According to the invention, the method includes the step of adjusting said parking force at least once.

Abstract: The invention relates to a method of managing a braking system architecture for an airplane fitted with brakes having electromechanical actuators, in which some of the actuators are connected to a battery assembly of the airplane and other actuators are not connected to the battery assembly of the airplane, which method comprises a step of controlling at least one of the actuators that is not connected to the battery assembly to cause it to exert a force equal to a unit holding force, which force is determined independently of any braking demand from the pilot. The invention also provides an architecture specially adapted to implement the method.

Abstract: The invention relates to a method of managing a braking system architecture for an airplane fitted with brakes having electromechanical actuators, in which some of the actuators are connected to a battery assembly of the airplane and other actuators are not connected to the battery assembly of the airplane, which method comprises a step of controlling at least one of the actuators that is not connected to the battery assembly to cause it to exert a force equal to a unit holding force, which force is determined independently of any braking demand from the pilot. The invention also provides an architecture specially adapted to implement the method.

Abstract: The invention provides airplane landing gear comprising at least one axle for carrying at least one brake-and-wheel assembly comprising a rim mounted to rotate on the axle and a stack of disks and a support carrying modular electromechanical actuators that are individually removable, the landing gear and the brake-and-wheel assembly being organized in such a manner that each actuator is in at least one of the following configurations: an empty space of dimensions sufficient for receiving the actuator extends on a disassembly path directly facing the actuator when it is in an operating position; the actuator is associated with displacement means enabling it to be moved from an operating position to a disassembly position, an empty space of dimensions sufficient to receive the actuator extending along a disassembly path directly facing the actuator when it is in the disassembly position.

Abstract: The invention provides a method of actuating an airplane brake fitted with at least one electromechanical actuator including a pusher that can be displaced in controlled manner in register with a stack of disks to apply a force on the stack of disks in response to a braking reference signal, the method comprising the steps of: when the braking reference signal crosses a contact threshold, controlling the actuator so that the pusher approaches the stack of disks, until the pusher reaches a contact position with the stack of disks; storing said contact position; and then immediately afterwards, controlling the actuator so that the pusher applies a force on the stack of disks in response to the braking reference signal.

Abstract: The invention relates to an actuator for an electromechanical brake, the actuator comprising a pusher and a first drive member arranged to move the pusher in register with a stack of disks and to apply a braking pressure to the stack of disks, the actuator including a second drive member comprising a piezoelectric assembly suitable for modulating the braking pressure applied to the stack of disks. According to the invention, the piezoelectric assembly is disposed inside the actuator so as to present an end that is stationary.

Abstract: The invention provides a method of controlling an electromechanical aircraft brake comprising a stack of disks and a ring carrying a plurality of electromechanical actuators each fitted with a pusher that is movable in register with the stack of disks under drive from an associated electric motor so that rotation of the motor in a first direction causes the pusher to be pressed against the stack of disks. According to the invention, the method comprises the step of causing at least one motor to rotate in a second direction opposite to the first direction so as to cause the corresponding pusher to reverse beyond a distance corresponding to normal operating clearance between the pusher and the stack of disks.