CPC G05D 1/484 (2024.01) [G05D 1/49 (2024.01); G05D 2109/20 (2024.01); G05D 2111/10 (2024.01)] | 19 Claims |
1. An aircraft autopilot guidance control system for guiding an aircraft having a body, the system comprising:
a processor configured to determine if a yaw angle difference and a pitch angle difference meet corresponding angle thresholds;
a skid-to-turn module configured to generate a skid-to-turn signal if the corresponding angle thresholds are met;
a bank-to-turn module configured to generate a bank-to-turn signal having a lower bandwidth than the generated skid-to-turn signal;
a rudder integrator module configured to add a rudder integrator feedback signal to the bank-to-turn signal, wherein the rudder integrator feedback signal is proportional to a rudder integrator; and
a filter module configured to filter the generated bank-to-turn signal, wherein the filter module comprises a low-pass filter configured by a set of gains to pass the bank-to-turn signal if a side force on the body meets a side force threshold.
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