抗冲击车路能量收集减速带设计与自供能交通管控

Design of Anti-impact Vehicle-road Energy Harvesting Bump and Self-powered Traffic Control

车辆滚压道路会产生大量机械能,将这些能量收集为交通环境中小型机电系统供电,实现自供能交通状况监测和交通管控等,使交通系统更加安全、有序、高效地运行;并且绿色环保,有益于我国“双碳”目标的实现。提出一种用于单向车道的抗冲击车路能量收集减速带(Anti-impact vehicle-road energy harvesting bump,AVEHB)。通过“顺势运动”吸纳车辆滚压能量,可以减少对器件和路基的冲击损伤,使更多滚压激励用于做功。抗冲击对比试验验证了该设计的优点。基于AVEHB工作原理,建立机电耦合动力学模型并进行试验验证。试验结果还显示,在车速50km/h时,AVEHB最大输出电压和功率分别为146.7 V和143.47 W。探索了自供能车速监测及行人主动安全警示等应用,验证了AVEHB具有为交通环境中机电系统供电的潜力。根据供电需求合理设置AVEHB阵列,可以为智慧交通系统提供便捷、可持续、绿色环保的零碳电力。

A large amount of mechanical energy can be generated when vehicles are rolling on the road,and the energy can be harvested to power small electromechanical systems in the traffic environment,to realize self-powered traffic monitoring and traffic control,etc.,so that the traffic system can operate more safely,orderly,and efficiently.Vehicle-road energy harvesting is green and environmentally friendly,and is beneficial to the realization of China’s"dual carbon"goal.This paper proposes an anti-impact vehicle-road energy harvesting bump(AVEHB)for one-way lanes.By"homeopathic movement"to absorb vehicle rolling energy,the impact to the energy harvester and roadbed can be reduced,and more rolling force can be used for energy harvesting.The comparison experiments verify the advantages of the design.Based on the working principle of AVEHB,the electromechanical coupling dynamic model is established and verified by experiments.The experimental results show that when the vehicle speed is 50 km/h,the maximum output voltage and power of AVEHB are 146.7 V and 143.47 W,respectively.The self-powered vehicle speed monitoring system and pedestrian active safety applications have been explored,which proves that AVEHB has the potential to power small electromechanical systems in traffic environments.By reasonably setting up the AVEHB network,it is possible to provide convenient,sustainable,environmentally friendly zero-carbon electricity for the smart transportation system.