摘要：航空发动机油门杆模拟装置由步进电机、驱动器和旋变组成，应用于航空发动机半物理仿真测试实验系统，配合控制计算机可以模拟航空发动机的推力特性等参数。为简化模拟过程，对航空发动机的推力测试数据表采用了基于Matlab程序的最小二乘曲线拟合计算，并通过Simulink仿真验证了运行效果，提出了进一步提高模拟精度的方法。

关键词：油门杆；步进电机；拟合；仿真

Abstract: Aircraft engine throttle simulator consists of stepper motors, driver and resolver, applied to aeroengine test semi-physical simulation experiment system, cooperate with the control computer can simulate aircraft engine thrust characteristics parameters. To simplify the simulation process of aeroengine thrust test data table using the least squares curve fitting based on the Matlab to calculate, and the running effect was verified by the Simulink simulation, further improving the simulation precision of the method was proposed.

Key words: throttle lever；stepper motor；fitting；simulation