A method for selecting a setpoint for a turbofan engine having a fan speed and a core idle speed scheduling includes determining a weighting factor based upon a throttle lever position, the weighting factor being zero in an idle region and ranging from zero to one in a dead band region and applying the...http://www.google.fr/patents/US6931835?utm_source=gb-gplus-shareBrevet US6931835 - Multivariant set point using N1 and N2 for engine control
Multivariant set point using N1 and N2 for engine control
