Design And Simulation Experiment On Two-Way Energy Harvesting System For Parking Lot Speed Bump

In view of the current problems of sustainable development and energy security in the world,vigorously developing new energy technologies has become an important way for energy transformation in various countries.As an important infrastructure of urban traffic,the parking lot carries a huge traffic flow.The kinetic energy generated by the collision of motor vehicles passing through the speed bumps is dissipated in the form of heat,and this waste kinetic energy can be recovered by using vibration energy capture technology.Therefore,this paper proposes a new parking lot speed bump bi-directional energy harvest system,which can recover the energy generated when the vehicle passes through the speed bump and supply power to the electronic components of the road gate system as an emergency and backup power supply,which is of great significance to energy saving and emission reduction and environmental protection.The main research work of this paper is as follows.Firstly,design the parking lot speed bump bi-directional energy harvest system.A twoway energy harvesting system for speed bumps is proposed,and a modular idea is used for the structure design,including the design of speed bump module,transmission module,power generation module and energy storage module.The speed bump bi-directional energy capturer can effectively convert the kinetic energy generated by the up and down reciprocation of speed bumps into electrical energy and realize energy harvesting.Secondly,the modeling and simulation analysis of the two-way energy capturing system of the parking lot speed bump is carried out.The kinematic and kinetic models of the two-way energy harvesting system of the parking lot are established,and the three characteristics of the system,namely,frictional characteristics,force-displacement characteristics and power characteristics,are simulated and analyzed by Matlab/Simulink software.Finally,the prototype development and bench test of the two-way energy harvesting system for parking lot speed bumps were completed.The friction characteristics,forcedisplacement characteristics and super capacitor charging experiments were conducted on the MTS bench.The experimental results show that: the simulation theory can predict the system performance well,the proposed system has good system stability and power generation capacity,the highest average mechanical efficiency can reach 68.41%,and the average output power can reach 15.67 W in one cycle,which can meet the demand of power supply for the small electrical equipment of the parking lot gate system and is of great significance to environmental protection and energy conservation and emission reduction.