A Study of Adaptive Cruise Control for Smooth Traffic

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K21397
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Dynamics/Control; Control engineering/System engineering
• Research Institution: Gunma University
• Principal Investigator: Ogitsu Takeki 群馬大学, 大学院理工学府, 准教授 (00621202)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: Gap Control Strategy / Adaptive Cruise Control / Cooperative ACC / Platooning / V-to-V Communication / ITS

Outline of Final Research Achievements

This study offers a new solution for smoothing the flow of vehicle traffic. The combination of adaptive cruise control (ACC), a kind of ADAS, and V2X enables the freer design of a gap control strategy than before while maintaining control stability. If ACC is to be installed on more vehicles in the future, its influence on traffic flow must be reduced. Therefore, this study designs a gap control strategy focusing on smoothing the traffic flow. In particular, this study proposes an ACC that relies on the exponentiated distance gap (EDG), which makes vehicle-to-vehicle distance proportional to a power of vehicle velocity. EDG uses a constant distance gap (CDG) in the lower velocity range and a constant time gap (CTG) in the higher velocity range. In this paper, details of EDG are described in comparison with CDG and CTG. In addition, this study reports the evaluation of the EDG’s influence on traffic flow, in comparison with CDG and CTG.

Free Research Field

カーロボティクス

Academic Significance and Societal Importance of the Research Achievements

提案する手法を用いる車間距離制御を利用することで、利用する車両のドライバの省力性や無駄な加減速と、後続車両に対するショックウェーブを、従来の車間距離制御手法に比べて軽減する事を両立できる。これにより、自動車交通における利便性の向上と省エネルギー化に貢献する。