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基于车辆比功率评价了自动巡航控制系统对改善油耗效率的影响.首先改进了智能驾驶员模型来模拟自动巡航控制系统,并用实测交通数据进行了标定;然后基于车辆比功率提出了一个五步过程用于计算油耗效率.通过仿真实验测试了不同比例自动巡航控制系统下的5种方案,同时对影响自动巡航控制系统感知反应时间和车头时距的2个关键因素进行了敏感性分析.仿真结果表明,所有采用自动巡航控制车辆的方案对减少油耗有积极影响,此外,从油耗效率的角度来看,并不需要采用很小的感知反应时间值,因为该值取0.5~0.1 s几乎带来相同的油耗减少效果.最后,虽然较小的车头时距可以提高通行能力,但就油耗效率而言该值需要设计得足够大.研究结果可为连接车和自动车辆设计行业改善道路油耗效率提供有效信息.
Based on the specific power of vehicle, the effect of automatic cruise control system on fuel consumption efficiency was evaluated.At first intelligent pilot model was modified to simulate automatic cruise control system and calibrated with measured traffic data. Then a five-step process was proposed based on vehicle specific power Which is used to calculate the fuel consumption efficiency.The five schemes under different proportions of automatic cruise control system were tested by simulation experiments and the sensitivity analysis was carried out on two key factors that affect the response time and headway of automatic cruise control system.The simulation results Shows that all schemes with automatic cruise control of vehicles have a positive effect on fuel economy reduction and that from the point of view of fuel consumption efficiency there is no need to use a very small perceptual reaction time value since this value takes almost 0.5 to 0.1 s The same fuel consumption reduction effect Finally, although smaller headway can improve traffic capacity, this value needs to be sufficiently large in terms of fuel economy efficiency.The results provide the fuel efficiency improvement for connecting vehicles and the automotive vehicle design industry Valid information