A noise reduction system in a vertical takeoff and landing (VTOL) vehicle is provided. The noise reduction system is configured to: identify a noise level at which the VTOL vehicle can operate; dynamically determine a motor-specific fan RPM and a motor-specific fan pitch that will allow the vehicle to not exceed the noise level based on vehicle noise characteristics and an ambient noise level; determine whether the determined motor-specific fan RPM and motor-specific fan pitch will allow the vehicle to operate within its safety envelope; and cause a motor-specific fan RPM command and a motor-specific fan pitch command to be sent to the lifter motor controller to cause the vehicle lifter motors to operate at the determined motor-specific fan RPM and motor-specific fan pitch when it is determined that the determined motor-specific fan RPM and motor-specific fan pitch will allow the VTOL vehicle to operate within its safety envelope.
NOISE SIGNATURE PROXIMITY WARNING SYSTEM AND FEEDBACK MECHANISM FOR AIRCRAFT
SYSTEM ZUR WARNUNG BEI GERÄUSCHSIGNATURNÄHE UND RÜCKMELDUNGSMECHANISMUS FÜR FLUGZEUG
SYSTÈME D'AVERTISSEMENT DE PROXIMITÉ DE SIGNATURE DE BRUIT ET MÉCANISME DE RÉTOUR POUR AÉRONEF
2025-01-08
Patent
Electronic Resource
English
NOISE SIGNATURE PROXIMITY WARNING SYSTEM AND FEEDBACK MECHANISM FOR AIRCRAFT
European Patent Office | 2022
|Aircraft Proximity Warning Devices
SAE Technical Papers | 1969
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