基于模糊控制的车辆自适应巡航系统设计

Design of Vehicle Adaptive Cruise Control System Based on Fuzzy Control

在定速巡航的基础上,结合跟车巡航功能,设计了一种自适应巡航分层控制系统,可根据行驶工况自动切换其工作模式,实现巡航系统的智能化。该系统综合考虑了跟车系统中前车车速、加速度、车距等各种因素,利用模糊控制技术的优点,提高控制系统的性能。利用Matlab仿真及硬件在环技术进行实验研究,结果表明该控制系统能够实现巡航模式的自适应切换,并且具有较高的控制精度和理想的巡航性能。

Based on the constant speed cruise and combining with following mode cruise function, an adaptive cruise control system with hierarchically configured structure is designed. It can switch the cruise operating mode automatically according to the driving conditions to implement the intelligence of cruise system. Taking into account various factors in following mode cruise system, such as the speed and the acceleration of the vehicle in front and vehicles distance, the fuzzy con- trol technology is adopted to improve the performance and quality of the control system. Matlab simulation and hardware in loop experiment results show that the adaptive cruise control system can switch automatically and has high control precision and ideal cruise performance.