Smooth motion control of the adaptive cruise control system by a virtual lead vehicle

被引：22
作者：
Kim, S. G. [1 ]
Tomizuka, M. [1 ]
Cheng, K. H. [2 ]
机构：
[1] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA
[2] Ind Technol Res Inst, Hsinchu 31040, Taiwan
来源：
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY | 2012年 / 13卷 / 01期
关键词：
Automotive control; Cruise control; Vehicle dynamics; Switching algorithms; Control algorithm;
D O I：
10.1007/s12239-012-0007-6
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The adaptive cruise control system maintains the appropriate distance to the lead vehicle when the lead vehicle exists and maintains the desired speed when no lead vehicle is detected. A virtual lead vehicle scheme is introduced to make the switching between the speed control algorithm and the distance control algorithm unnecessary and simplify the structure of the control system. The speed and the position of the virtual vehicle can be decided by the control system according to the current situation. Smoother responses are achieved by the virtual lead vehicle scheme compared to the conventional mode switching scheme. This method is also shown to provide a good reaction for when a lead vehicle cuts in or out. A linear quadratic controller with variable weights is suggested to control the virtual lead vehicle. This scheme shows improved performance in terms of passenger comfort and fuel efficiency of the host vehicle.
引用
收藏
页码：77 / 85
页数：9
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