Fractional-order-based ACC/CACC algorithm for improving string stability

Abstract Traffic flow optimization and driver comfort enhancement are the main contributions of an Adaptive Cruise Control (ACC) system. If communication links are added, more safety and shorter gaps can be reached performing a Cooperative-ACC (CACC). Although shortening the inter-vehicular distances directly improves traffic flow, it can cause string unstable behavior. This paper presents fractional-order-based control algorithms to enhance the car-following and string stability performance for both ACC and CACC vehicle strings, including communication temporal delay effects. The proposed controller is compared with state-of-the-art implementations, exhibiting better performance. Simulation and real experiments have been conducted for validating the approach.

[1]  D. SWAROOP,et al.  Intelligent Cruise Control System Design Based on a Traffic Flow Specification , 1998 .

[2]  Antonio Saverio Valente,et al.  Design, analysis and performance evaluation of a third order distributed protocol for platooning in the presence of time-varying delays and switching topologies , 2017 .

[3]  Vicente Milanés Montero,et al.  Experimental Application of Hybrid Fractional-Order Adaptive Cruise Control at Low Speed , 2014, IEEE Transactions on Control Systems Technology.

[4]  Igor Podlubny,et al.  Fractional-order systems and PI/sup /spl lambda//D/sup /spl mu//-controllers , 1999 .

[5]  Vicente Milanés Montero,et al.  Cooperative Adaptive Cruise Control in Real Traffic Situations , 2014, IEEE Transactions on Intelligent Transportation Systems.

[6]  Petros A. Ioannou,et al.  Autonomous intelligent cruise control , 1993 .

[7]  Martin Lauer,et al.  Team AnnieWAY's Entry to the 2011 Grand Cooperative Driving Challenge , 2012, IEEE Transactions on Intelligent Transportation Systems.

[8]  Y. Chen,et al.  Continued Fraction Expansion Approaches to Discretizing Fractional Order Derivatives—an Expository Review , 2004 .

[9]  Yangquan Chen,et al.  A Fractional Order Proportional and Derivative (FOPD) Motion Controller: Tuning Rule and Experiments , 2010, IEEE Transactions on Control Systems Technology.

[10]  Steven E Shladover,et al.  Impacts of Cooperative Adaptive Cruise Control on Freeway Traffic Flow , 2012 .

[11]  Xiao-Yun Lu,et al.  COOPERATIVE ADAPTIVE CRUISE CONTROL (CACC) DEFINITIONS AND OPERATING CONCEPTS , 2015 .

[12]  J. Hedrick,et al.  String stability of interconnected systems , 1996, IEEE Trans. Autom. Control..

[13]  M. Caputo.  Linear models of dissipation whose Q is almost frequency independent , 1966 .

[14]  Carlos Canudas-de-Wit,et al.  A Safe Longitudinal Control for Adaptive Cruise Control and Stop-and-Go Scenarios , 2007, IEEE Transactions on Control Systems Technology.

[15]  Maarten Steinbuch,et al.  String-Stable CACC Design and Experimental Validation: A Frequency-Domain Approach , 2010, IEEE Transactions on Vehicular Technology.

[16]  Steven E Shladover,et al.  Modeling cooperative and autonomous adaptive cruise control dynamic responses using experimental data , 2014 .

[17]  Rajesh Rajamani,et al.  An Experimental Comparative Study of Autonomous and Co-operative Vehicle-follower Control Systems , 2001 .

[18]  Umit Ozguner,et al.  Distributed MPC for cooperative highway driving and energy-economy validation via microscopic simulations☆ , 2017 .

[19]  Y. Chen,et al.  Using Continued Fraction Expansion to Discretize Fractional Order Derivatives , 2003 .

[20]  Gábor Orosz,et al.  Motif-Based Design for Connected Vehicle Systems in Presence of Heterogeneous Connectivity Structures and Time Delays , 2016, IEEE Transactions on Intelligent Transportation Systems.

[21]  YangQuan Chen,et al.  UBIQUITOUS FRACTIONAL ORDER CONTROLS , 2006 .

[22]  Yang Zheng,et al.  Robust control of heterogeneous vehicular platoon with uncertain dynamics and communication delay , 2016 .

[23]  Yangquan Chen,et al.  Fractional order [proportional derivative] controller for a class of fractional order systems , 2009, Autom..

[24]  Nathan van de Wouw,et al.  Controller Synthesis for String Stability of Vehicle Platoons , 2014, IEEE Transactions on Intelligent Transportation Systems.

[25]  Concepción A. Monje,et al.  Introducción al Control Fraccionario , 2006 .