This is also known as active or intelligent cruise control.This mainly uses radar and laser sensor usually located behind the grille.And it is used to determine the speed and the distance of the veichle in front .It usually maintains the veichle preset speed and adjust it according to maintain the proper distance between the veichles in the same lane.For instance the veichle in the front slows down,the ACC control sends a signal to the engine or breaking system to deaccelerate.The system accelerates to the last speeds setting when it detects that the distance is safe again.
One of the potential advantages of ACC is the foundation that it provides for next generation advancements in collision avoidance systems that are expected to include radar and cameras. Adaptive Cruise Control is also anticipated to be beneficial in cities and towns with heavy urban stop-and-go traffic by functioning at low stop/start speeds in city traffic. It is expected to have the ability to stop the car completely when sitting in traffic, re-starting and following the car in front when the traffic begins to move again. Potential Key Benefits of ACC:
* Reduction in accident rate for vehicles fitted with collision avoidance type systems.
* Reduction in driver fatigue.
* Increase in fuel efficiency due to very gradual speed increase / decrease in traffic.
* Interconnection to more advanced future systems.
