【摘要】 针对节省燃油和提高汽车行驶舒适性的需要,提出了一种基于PIC单片机的汽车巡航 控制系统设计方案,建立了巡航控制系统数学模型,采用了模糊自整定PD控制算法,对转速、节 气门进行双闭环控制.实验与仿真结果表明,所提出设计方案能实现车速的自动控制,减少不必要 的车速变化,减轻驾驶员因长途驾驶而产生的疲劳,从而减少或避免交通事故发生.更多还原

【Abstract】 To make driving comfortable and save fuel, a scheme of Cruise Control System based on PIC MCU is put forward. Math model of Cruise Control System is established and fuzzy PID adjustment with variable parameter is adopted. Double closed -loop control of speed and electronic throttle is realized. The experiment and simulation results prove that the scheme can automatically control, keep, accurately adjust and resume speed. Using this system will release the driver from the tiring work and avoid the traffic accidents to some extent.更多还原