An aircraft braking control unit 1460 and method of operating an aircraft. The control unit includes a cockpit braking input line 1414, another cockpit input line 1412, a measurement input line 1421 (e.g. to input wheel speed or aircraft speed), a braking output line 1464, a brake mode selector 1461, and a brake calculator 1462 for calculating a braking command according to a selected brake mode. The braking mode is selected from multiple brake modes, including a landing gear drive system pushback brake mode, in which a landing gear drive system 1430 drives backwards movement of the aircraft over a ground surface (e.g. during reverse taxiing) and the braking command acts to retard the backwards movement of the aircraft such that a braking torque limit is not exceeded. Selection is made based on the measured variable or a cockpit input. The method includes initiating a landing gear drive system activation control; measuring at least one variable; selecting the landing gear drive system pushback mode based on the cockpit input, the measurement or the activation signal; and driving pushback of the aircraft using the drive system at the same time as commanding braking up to a brake torque limit.
An aircraft braking control unit
2021-04-28
Patent
Electronic Resource
English
Aircraft braking control system, undercarriage, aircraft and aircraft braking method
European Patent Office | 2022
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