A novel approach to the design of controllers in an automotive cruise-control system

A complete stabilizing PID set is developed without the need for an identified analytical model, for an automotive cruise-control system from its frequency response. The resulting set serves as a framework and is used to determine the PID gains satisfying certain performance indices. These performance measures are derived from the need for efficient tracking and disturbance rejection. This ensures that the controller is tuned with the most appropriate PID gains, yielding the desired closed-loop response. Also, this serves as a viable alternative to the iterative method of estimating stabilizing PID gains.