This paper introduces a new fuzzy PID controller which can be used in the automotive engine test bench, the advantage of this PID cont roller lies in the online self-tuning function of PID parameter.

本文提出了一种应用于汽车发动机测试台架的模糊pid控制器，这种PID控制器优点在于PID参数可在线自整定。

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The results show that the control quality of the engine system is greatly improved by the self tuning controller.

为了改善控制品质，本文为此研究了最小方差自校正控制问题。

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