Patents, software, and hardware for PID control: an overview and analysis of the current art

  title={Patents, software, and hardware for PID control: an overview and analysis of the current art},
  author={Yun Li and Kiam Heong Ang and Gregory Chong},
  journal={IEEE Control Systems},
The wide application of proportional-integral-derivative (PID) control has stimulated and sustained the development and patenting of various tuning and associated system identification techniques. However, to achieve optimal transient performance, tuning methods vary, and at present there exists no standardization of PID structures. This article provides an overview and analysis of PID patents, commercial software packages, and hardware modules. It also highlights the differences between… 

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