汽车自适应巡航控制的间距策略

Distance Strategy of Adaptive Cruise Control of Vehicle

汽车自适应巡航控制中,为确定不同车距下的控制策略,通过建立汽车行驶模型和制动模型,推导得到车速判据、第一车距判据、第二车距判据。将前后两车之间距离按此三条判据,由前至后划分为避撞区域、制动区域、降速区域、加速区域。自适应巡航系统能够判断和识别汽车当前所处区域,能够决定当前所应采取的驱动控制和制动控制策略。

In adaptive cruise control of vehicle in order to determine control strategy in different distance of vehicle the driving model and braking model are established. With the formula derivation of speed criterion and distance criterion of vehicle the distance between vehicle is divided into collision avoidance region,braking region, speed reduction region and acceleration region. Adaptive cruise control system can determine the current acceleration or braking control strategy of vehicle with the identification of the current region of vehicle.