Impact of Mixed Traffic on the Energy Savings of a Truck Platoon

拖车 汽车工程 卡车 燃料效率 巡航控制 工程类 模拟 计算机科学 控制(管理) 人工智能
作者
Brian McAuliffe,Arash Raeesi,Michael Lammert,Patrick Smith,Mark Hoffman,David M. Bevly
出处
期刊:SAE International Journal of Advances and Current Practices in Mobility 卷期号:2 (3): 1472-1496 被引量:21
标识
DOI:10.4271/2020-01-0679
摘要

<div class="section abstract"><div class="htmlview paragraph">A two-truck platoon based on a prototype cooperative adaptive cruise control (CACC) system was tested on a closed test track in a variety of realistic traffic and transient operating scenarios - conditions that truck platoons are likely to face on real highways. The fuel consumption for both trucks in the platoon was measured using the SAE J1321 gravimetric procedure as well as calibrated J1939 instantaneous fuel rate, serving as proxies to evaluate the impact of aerodynamic drag reduction under constant-speed conditions. These measurements demonstrate the effects of: the presence of a multiple-passenger-vehicle pattern ahead of and adjacent to the platoon, cut-in and cut-out manoeuvres by other vehicles, transient traffic, the use of mismatched platooned vehicles (van trailer mixed with flatbed trailer), and the platoon following another truck with adaptive cruise control (ACC). These scenarios are intended to address the possibility of “background aerodynamic platooning” impacting realized savings on public roads. Using calibrated J1939 fuel rate analysis, fuel savings for curved track sections versus straight track sections were also evaluated for these scenarios, highlighting differences in the implementation of the CACC control strategies compared to a stock ACC implementation. The use of different trailer types and the presence of passenger-vehicle traffic patterns showed a measurable impact on platoon performance in some conditions, but the basic fuel savings trends were retained.</div></div>
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