汽车巡航智能控制策略及仿真

Research on the Intelligent Control Strategy and Simulation of Automobile Cruise System

为提高汽车行驶的主动安全性及减轻驾驶员的疲劳强度,提出了汽车巡航智能控制策略。基于模糊控制理论,给出了两种模式下的智能巡航控制理念并设计了汽车巡航模糊控制器,实现了巡航车节气门开度或制动踏板行程的自动触发与调节。以1.6L带有液力变矩器的自动档轿车实车试验数据为基础,结合多种城市道路运行工况,采用MATLAB/Simulink进行了巡航系统闭环反馈控制的仿真验证。结果表明:该策略能够有效地实现汽车主动跟随及走-停集成控制功能,说明该策略具有较好控制效果,为建立巡航系统d SPACE原型及产品的研发提供了理论参考。

In order to improve the active safety driving vehicle and alleviate the intension of driving fatigue,an intelligent control method of automobile cruise is put forward. On the basis of the fuzzy control theory,a control concept of automobile intelligent cruise is presented for two patterns and a fuzzy logical controller,which can trigger the motion of the throttle position or the braking pedal travel,and is designed at the same time. Taking the test data of 1.6L car with Auto-transmission for example,the control method is validated based on the varying of traffic running cases adopting MATLAB/Simulink. The simulation results show that the control strategy on automobile intelligent cruise can be equipped with the integrated capability of the adaptive following control,and stop go control,and the control methods sure the cruise vehicle has a better performance to follow the preceding car. The research results can offer the theory reference for setting d SPACE type and developing the product of automobile cruise system.