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Impact of Mixed Traffic on the Energy Savings of a Truck Platoon: Preprint
| 题名： | Impact of Mixed Traffic on the Energy Savings of a Truck Platoon: Preprint |
| 作者： | Brian McAuliffe##Arash Raeesi##Michael Lammert##Patrick Smith## Mark Hoffman## David Bevly |
| 摘要： | A two-truck platoon based on a prototype cooperative adap- tive cruise control (CACC) system was tested on a closed test track in a variety of realistic traffic and transient operating sce- narios - conditions that truck platoons are likely to face on real highways. The fuel consumption for both trucks in the pla- toon 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 demon- strate 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 adap- tive cruise control (ACC). These scenarios are intended to ad- dress 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 sce- narios, highlighting differences in the implementation of the CACC control strategies compared to a stock ACC implemen- tation. 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. |
| 总页数： | 9 |
| 报告类型： | 科技报告 |
| 发布日期： | 2020 |
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