Abstract: A method of managing a steering command for a steerable portion 3 of nose landing gear 2 of an aircraft 1. The method implements servo-control to servo-control of a steering actuator 6 to an angle position setpoint ?set for the steerable portion 3. The servo-control includes calculating an error ? by subtracting a reference angle ?est from the angle position setpoint ?set. The reference angle ?est is an angle determined by calculation as a function of a longitudinal speed Vlong and a yaw rate ? of the aircraft 1.

Abstract: The invention relates to a method of controlling the steering of a steerable portion of an aircraft undercarriage that is fitted both with a steering member for steering the steerable portion and also with at least two angular position sensors for sensing the angular position of the steerable portion in order to deliver respective signals representative of the angular position of the steerable portion, wherein the steering member is controlled by means of servo-control using information that is representative of the angular position of the steerable portion. According to the invention, the information representative of the angular position that is used is a mean of the angular positions sensed by the at least two angular position sensors.

Abstract: The invention provides a steering resetting method for an aircraft undercarriage that includes a leg in which a steerable bottom portion is mounted to slide against a suspension force generated by a shock absorber, the undercarriage being provided with a controllable steering member for causing the steerable bottom portion to swivel in response to an angular position setpoint, the undercarriage also including at least one angular position sensor adapted to generate an electrical signal representative of the angular position of the steerable bottom portion and suitable for use in controlling the steering member; the method comprises the step, performed when the steerable bottom portion is in an indexed angular position while the aircraft is in flight and the undercarriage is fully extended, of setting the electrical signal from the sensor to a determined reset value.

Abstract: A method of managing the braking of an aircraft 1 having at least one controllable brake 9 for braking the aircraft 1 when the aircraft 1 is on the ground and as a function of a braking setpoint C. The method includes correcting the braking setpoint as a function of the pitch angle ? of the aircraft 1 during braking.

Abstract: A method of managing the steering of aircraft undercarriage wheels carried by a steerable bottom portion of the undercarriage, the bottom portion being associated with steering control including a steering member suitable for steering the bottom portion of the undercarriage in response to a steering order. The method comprises the steps of (1) monitoring the pressures of the tires carried by the wheels, and in response to detecting at least one of the following events: (1A) the pressure of one of the tires is less than a first predetermined threshold, and ( 1B) the difference between the pressures of two of the tires is greater than a second determined threshold; (2) activating the steering control, if the steering control is not activated; and (3) implementing a steering control relationship that is modified compared with a nominal control relationship used when the tires are properly inflated.

Abstract: The invention relates to a method of managing a steering command for a steerable portion 3 of nose landing gear 2 of an aircraft 1, the method implementing servo-control to servo-control a steering actuator 6 to an angle position setpoint ?set for the steerable portion 3, the servo-control including calculating an error ? by subtracting a reference angle ?est from the angle position setpoint ?set. According to the invention, the reference angle ?est is an angle determined by calculation as a function of a longitudinal speed Vlong and a yaw rate ? of the aircraft 1.

Abstract: The invention provides a steering resetting method for an aircraft undercarriage that includes a leg in which a steerable bottom portion is mounted to slide against a suspension force generated by a shock absorber, the undercarriage being provided with a controllable steering member for causing the steerable bottom portion to swivel in response to an angular position setpoint, the undercarriage also including at least one angular position sensor adapted to generate an electrical signal representative of the angular position of the steerable bottom portion and suitable for use in controlling the steering member; the method comprises the step, performed when the steerable bottom portion is in an indexed angular position while the aircraft is in flight and the undercarriage is fully extended, of setting the electrical signal from the sensor to a determined reset value.

Abstract: The invention relates to a method of managing the steering of aircraft undercarriage wheels carried by a steerable bottom portion of the undercarriage, the bottom portion being associated with steering control including a steering member suitable for steering the bottom portion of the undercarriage in response to a steering order. According to the invention, the method comprises the steps of: monitoring the pressures of the tires carried by the wheels, and in response to detecting at least one of the following events: the pressure of one of the tires is less than a first predetermined threshold; and the difference between the pressures of two of the tires is greater than a second determined threshold; activating the steering control, if the steering control is not activated; and implementing a steering control relationship that is modified compared with a nominal control relationship used when the tires are properly inflated.

Abstract: The invention relates to a method of controlling the steering of a steerable portion of an aircraft undercarriage that is fitted both with a steering member for steering the steerable portion and also with at least two angular position sensors for sensing the angular position of the steerable portion in order to deliver respective signals representative of the angular position of the steerable portion, wherein the steering member is controlled by means of servo-control using information that is representative of the angular position of the steerable portion. According to the invention, the information representative of the angular position that is used is a mean of the angular positions sensed by the at least two angular position sensors.