在生产过程中为了提高产品质量，增加产量，节约原材料，要求生产管理及生产过程始终处于最优工作状态。因此产生了一种最优控制的方法，这就叫自适应控制。在这种控制中要求系统能够根据被测参数，环境及原材料的成本的变化而自动对系统进行调节，使系统随时处于最佳状态。自适应控制包括性能估计（辨别）、决策和修改三个环节。它是微机控制系统的发展方向。但由于控制规律难以掌握，所以推广起来尚有一些难以解决的问题。

加入自适应的pid控制就带有了一些智能特点，像生物一样能适应外界条件的变化。自适应PID不但可以较好的实现误差的快速收敛，还省去了整定参数的时间。-In the production process in order to improve product quality, increase production, saving raw materials, production management and production process requirements is always in optimal working condition. Thus creating an optimal control method, which is called adaptive control. In this control system according to the measured parameters requires, the environment and changes in the costs of raw materials, the system automatically adjusts the system at all times in the best condition. Adaptive control includes performance estimates (distinguish), decision-making and modify three aspects. It is the computer control system development. However, due to the control law is difficult to grasp, so there is some promote them difficult to solve the problem. Join with adaptive pid control on a number of smart features like creatures can adapt to changing conditions. Adaptive PID error can not only achieve a better fast convergence, but also eliminates the time of tuning parameters.