The Adaptive Cruise Control (ACC) is a software based electronic control system that increases the convenience and
safety features. Though it provides an accountable safety, the driver should get adopted to the cruise control and should respond
appropriately to the feedback. In this research, We have focused on the proportional gain [Kp] by considering Rise time (r) less
than 5 seconds, overshoot (P) less than 30% and steady state error (e) less than 3% with a damping ratio of 0.5.
The program was entered in the MATLAB and corresponding Root Locus and Step response were plotted. In the first iteration, it
was observed that the rise time and overshoot met the required criteria and in the second iteration steady-state-error also met the
required criteria. Here in-order to compensate the lag in steady-state-error, a log controller is used and corresponding root locus
and step response were plotted.