可靠性是一切系统生命的保证，人们对规化输入命令消除系统的余振已经做了许多工作，但是所提出的方法对系统模型的精确程度依赖性太强，影响了其推广使用。本文提出了一种新的输入函数，从理论和数值仿真方面进行了研究，证明了这种输入函数具有很高的鲁棒性，这对于将这项技术用于实际生产中具有非常重要的作用。 Reliability is the guarantee of all system life. People have done a lot of work on the regulation of inputting order to eliminate the aftershock of the system. However, the proposed method depends too much on the accuracy of the system model and affects its popularization and use. In this paper, a new input function is proposed, which is studied in theory and numerical simulation. It is proved that the input function has high robustness, which is very important for the application of this technology in practical production .