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介绍了自行研制的汽车巡航控制系统，其主要由控制及调整开关、传感器、控制单元和执行机构组成；采用变参数ＰＩ控制算法，根据系统判别的汽车行驶状况（节气门开度和车速）和目标车速与实际车速之间的偏差大小来调整控制参数。该系统可以在汽车行驶过程中实现车速的自动控制，具有车速保持、微调以及恢复功能，有助于减轻驾驶员的疲劳程度，提高驾驶舒适性。
This paper introduces a self-developed car cruise control system, which mainly consists of control and adjustment switches, sensors, control units and actuators. The variable-parameter PI control algorithm is adopted to determine the driving conditions of the car based on the system’s driving conditions (throttle opening and vehicle speed) The target vehicle speed and the actual speed of the deviation between the size to adjust the control parameters. The system can automatically control the speed of the vehicle during driving, with speed keeping, fine tuning and recovery functions, which can help to reduce the driver’s fatigue and improve the driving comfort.