The invention belongs to the field of flight control, and relates to an automatic accelerator
nonlinear control method and device for full-
automatic landing of an aircraft, and the method comprises the steps: S1, obtaining an accelerator control input quantity; s2, feed-forward lead-
lag correction is carried out; s3,
negative feedback is superimposed on the correction value, and the accelerator control quantity is formed; s4, automatic accelerator
control system transmission calculation is carried out, and the accelerator output quantity is obtained; s5, automatic accelerator execution
system transmission calculation is conducted on the accelerator output quantity, and the
actuator output quantity is obtained; s6, accelerator
system model operation is carried out on the accelerator output quantity to form a first control quantity, and second time
delay compensation operation is carried out on the first control quantity to form a second control quantity; and S7, subtracting the second control quantity from the controller output quantity, inputting the controller output quantity into the PD controller, and superposing the first control quantity on the output result to form
negative feedback. According to the method, the aircraft approach
power compensation effect is improved, and the flight path control precision is improved.