Abstract




 
   

IJE TRANSACTIONS C: Aspects Vol. 31, No. 6 (June 2018) 967-972   

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  THIRD-ORDER DECENTRALIZED SAFE CONSENSUS PROTOCOL FOR INTER-CONNECTED HETEROGENEOUS VEHICULAR PLATOONS
 
H. Chehardoli and M. Homaienezhad
 
( Received: August 25, 2017 – Accepted in Revised Form: March 09, 2018 )
 
 

Abstract    In this paper, the stability analysis and control design of heterogeneous traffic flow is considered. It is assumed that the traffic flow consists of infinite number of cooperative non-identical vehicular platoons. Two different networks are investigated in stability analysis of heterogeneous traffic flow: 1) inter-platoon network which deals with the communication topology of lead vehicles and 2) intra-platoon network which deals with communication topology of individual platoons. The unidirectional communication topology is employed to describe the inter-platoon and intra-platoon networks topologies. By introducing a new decoupling approach, the 3N-order closed-loop dynamics of both networks is transformed to N third-order dynamical equations. Both inter-platoon and intra-platoon string stability are performed by presenting new approaches. Several simulation results are provided to show the effectiveness of the proposed approaches.

 

Keywords    Traffic Flow; Inter-platoon Stability; Intra-platoon Stability; Time Delay; String Stability

 

چکیده    در این مقاله به تحلیل پایداری و کنترل جریان ترافیکی ناهمگن با لحاظ ایمنی و پایداری رشتهای پرداخته میشود. تمرکز تحقیقات گذشته بر تحلیل پایداری فقط یک گروه خودرو استوار بوده است. از آنجایی که جریان ترافیکی شامل برهمکنش گروههای ناهمگن خودرو است، ضرورت مطالعه رفتار بین گروهی و درونگروهی خودروها وجود دارد. با توجه به حجم زیاد جریان ترفیکی روشهای موجود در تحلیل سیستمهای چندعاملی، پاسخگوی تحلیل جریان ترافیکی نمیباشد. لذا در این مقاله روشی نوین با استفاده از اطلاعات شتاب خودرو جلو برای دیکاپل کردن معادله حلقه بسته جریان ترافیکی ارائه میگردد. ساختار ارتباطی به صورت یکسویه درنظر گرفته میشود و تاخیر زمانی ارتباطی و عملگری در مدلسازی و کنترل حرکت بین گروهی و درون گروهی لحاظ میگردد. مدل دیفرانسیل مرتبه سه برای توصیف دینامیک سطح بالای خودرو درنظر گرفته میشود و شرایط لازم روی پارامترهای کنترلی که متضمن پایداری داخلی و رشتهایجریان ترافیکی باشند ارائه میگردد. شبیهسازیهای متعدد برای نشان داده کیفیت روشهای بیان شده ارائه میگردند.

References   

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