Inverse model control for inner loop of control loading system on flight simulator

To improve force feel simulation fidelity of the control loading system on the flight simulator based on force loop, the effect of inner loop tracking performance on the fidelity of force feel simulation is analyzed. A controlling strategy combining proportion with feedforward inverse model compensation is put forward following the structure invariance principle for restraining surplus force. On the premise of loop stability, this strategy can expand inner loop bandwidth. Simulation and hardware-in-the-loop experiment on the RT-LAB based rapid prototype control platform show that the proposed control strategy improves the inner loop tracking performance, thus significantly enhances the force feel simulation fidelity of control loading system.