Cruise Control Devices

The concept of assisting driver in the task of longitudinal vehicle control is known as cruise control. Starting from the cruise control devices of the seventies and eighties, now the technology has reached cooperative adaptive cruise control. This paper will address the basic concept of adaptive cruise control and the requirement to realize its improved versions including stop and go adaptive cruise control and cooperative adaptive cruise control. The conventional cruise control was capable only to maintain a set speed by accelerating or decelerating the vehicle. Adaptive cruise control devices are capable of assisting the driver to keep a safe distance from the preceding vehicle by controlling the engine throttle and brake according to the sensor data about the vehicle. Most of the systems use RADAR as the sensor .a few use LIDAR also. This paper includes a brief theory of pulse Doppler radar and FM-CW LIDAR used as sensors and the basic concept of the controller.
CONTENTS
•  PRINCIPLE OF ACC
•  SENSOR OPTIONS
•  SPACE OF MANEUVERABILITY AND STOPPING DISTANCE:
•  CONTROLLER
•  CO OPERATIVE ADAPTIVE CRUISE CONTROL [CACC]
•  ADVANTAGES AND DISADVANTAGES
•  CONCLUSION & REFERENCES 


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