基于液压储能器的制动能量回收试验台研制  

Development of an experiment test bed based on a hydraulic accumulator for regenerative braking

作　　者：徐平 马宗正 王赛飞 张双飞 XU Ping;MA Zongzheng;WANG Saifei;ZHANG Shuangfei(School of Civil Engineering,Henan University of Engineering,Zhengzhou 451191,China;School of Mechanical Engineering,Henan University of Engineering,Zhengzhou 451191,China;School of Mechanical and Electronic Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China)

机构地区：[1]河南工程学院土木工程学院,河南郑州451191 [2]河南工程学院机械工程学院,河南郑州451191 [3]中原工学院机电学院,河南郑州450007

出　　处：《实验技术与管理》2024年第8期150-155,共6页Experimental Technology and Management

基　　金：河南省科技攻关项目(242102220033);河南省高等学校重点科研项目(22B470002)。

摘　　要：该文研制了基于液压储能器的制动能量回收试验台,试验台用飞轮模拟车辆的转动惯量,利用液压泵回收能量,将能量存储于蓄能器。该文基于上述工作原理完成了试验台零部件选型和支撑结构的设计,同时基于STM32单片机设计了控制系统硬件,并开发了控制程序,可实时测量转速和蓄能器压力信号。该试验台能够模拟制动能量回收过程,分析不同条件下的能量回收和释放过程。[Objective]The regenerative braking system is a crucial component of electric and hybrid electric vehicles.Demonstrating the working process of this system to students is essential to helping them understand the underlying principles.Given the limitations of real vehicle regenerative braking systems,which do not exhibit the energy recovery process,and the absence of experimental test beds to display the working process,a regenerative braking system simulation test bed is developed.This test bed,designed with specific machinery and control systems,is used to illustrate the working principles of a hydraulic regenerative braking system.[Methods]The experimental test bed simulates the vehicle’s moment of inertia using a flywheel group.A hydraulic pump is used for energy recovery,and the recovered energy is stored in an accumulator.Key components are selected according to the working process.The size of the flywheel group is calculated based on the vehicle mass,tire radius,and maximum speed.The pump specifications are determined based on the initial braking speed and maximum braking distance.The accumulator capacity is calculated according to the total energy of the vehicle,which ensures that energy can be stored in the accumulator.The mechanical support of the test bed is designed based on numerical simulations.This design is determined through a comparison of the static stress analysis with the yield strength of the materials.The control system,built around an STM32 microcomputer,includes both hardware and software components.The system receives speed and accumulator pressure data from the corresponding sensors and controls the clutch and electromagnet by toggling the power of the electromagnetic directional valve.To enhance the intuitive experience during the experiment,the MCGS configuration screen is used as the display module.The screen can communicate with the STM32 microcontroller through the Modbus protocol,enabling real-time data display with data curves using a graphical interface design.The system’s fe

关 键 词：制动能量回收 模拟 试验台 设计开发 

分 类 号：TH13[机械工程—机械制造及自动化]