Adaptive Cruise Control (ACC) System in Automobiles

In today's world of the automotive industry, efforts are still being made towards more autonomous vehicles (AVs). The primary focus of introducing autonomous technology is driver safety. According to a study 90 percent of injuries occur because of driver error. The adaptive cruise control system (ACC) is a system that integrates cruise control with an avoidance system for collisions. The ACC system is based on technologies such as laser and radar. This system is capable of automatically controlling vehicle speed to match the speed of the vehicle, bus or truck in front of the vehicle.In the world of today’s automotive industry is still putting efforts towards the more autonomous vehicles (AVs). Driver safety is the main concern of implementation of the autonomous technology. According to a study, 90% of accidents occur due to driver’s mistake.A system that combines cruise control with a collision avoidance system is the adaptive cruise control system (ACC). The ACC system is based on the technologies of laser and radar. This system is capable of automatically adjusting the velocity of the vehicle to match the velocity of the vehicle (bus, car or truck) in front of the vehicle. If the lead vehicle is slowed down or accelerated, the ACC system will automatically match that velocity. This paper focuses on more precise methods of detecting preceding vehicle through the use of lidar and radar sensors by considering the side slip of the vehicle and monitoring the distance between two vehicles. An improvement in driving stability was achieved by using this approach, i.e. logic for calculating former vehicle distance and controlling the ACC equipped vehicle throttle valve. If the ACC system slows down or accelerates the lead vehicle fits the velocity immediately. The paper proposed concentrates on more precise methods to detect the preceding vehicle using a radar and a lidar sensors by controlling the distance between two vehicles and considering the vehicle side slip. By using this approach i.e. logic for calculating the distance of the former vehicle and controlling the ACC equipped vehicle throttle valve, an increased driving stability has been achieved. The own contribution results with fuel efficient driving and a safer and more reliable driving system, but there are still some improvements to make it safer and more reliable.