System and method for detecting an on ground condition of an aircraft

摘要

Systems and methods for detecting an on ground condition of an aircraft are disclosed. A weight on wheel system may determine that an aircraft is on the ground. Wheel speed sensors may measure the speed of the aircraft wheels. Axle reference speeds may be calculated for each landing gear based on the speed of the aircraft wheels. A brake control unit may determine that the axle reference speed for each axle of the landing gears is above an on ground threshold speed, and the brake control unit may allow braking to be applied.

主权项

1. A method for determining an on ground condition of an aircraft comprising:
calculating a first axle reference speed for a first landing gear of an aircraft; calculating a second axle reference speed for a second landing gear of the aircraft; and in response to both the first axle reference speed and the second axle reference speed being greater than an on ground threshold, permitting, by a brake control unit, a braking force to be applied to at least one of the first landing gear and the second landing gear.