盘鼓混合式磁流变踏板力调控装置结构设计与优化  

Structure design and optimization of a disc-drum hybrid magnetorheological device for pedal force control

作　　者：屈贤 张金龙 渠立红 QU Xian;ZHANG Jinlong;QU Lihong(Nanjing Vocational University of Industry Technology,College of Traffic Engineering,Nanjing 210023,China)

机构地区：[1]南京工业职业技术大学交通工程学院,南京210023

出　　处：《汽车安全与节能学报》2023年第6期698-706,共9页Journal of Automotive Safety and Energy

基　　金：江苏省高等学校自然科学研究项目(23KJB580009);南京工业职业技术大学引进人才科研启动基金项目(201050623RS011)。

摘　　要：为了解决踏板感觉对电动汽车再生制动应用的不良影响问题,设计了可嵌入安装于制动踏板根部的磁流变踏板力调控装置。基于嵌入安装需求,设计了盘鼓混合式的磁流变装置,运用有限元方法优化设计装置磁路结构,并进行样机性能测试分析。结果显示:所设计的磁流变踏板力调控装置结构紧凑,能有效实现嵌入式安装;磁流变踏板力调控装置的输出力矩可调范围广,可达0.2~32.0 Nm,能满足踏板力调控需求;同时,磁流变踏板力调控装置输出力矩受转速影响较小,可通过控制电流调节输出力矩,易于实现踏板力的精准调控。In order to solve the adverse effects of pedal feeling on regenerative braking of electric vehicles,a magnetorheological device(MRD)for pedal force control was designed with characteristics of root-embedding of the brake pedal.Based on the embedded installation requirements,a disk-drum hybrid structure was designed for the MRD.The magnetic circuit of the MRD was optimized by the finite element method.Finally,the performances of the MRD prototype were tested and analyzed.Results show that the designed MRD has a compact structure,which can implement embedded installation effectively.The output torque of the MRD is over 0.2-32 Nm,indicating its wide adjustable torque range.This wide range meets the needs of pedal force regulation.At the same time,the output torque is less affected by the speed.Thus,it can be accurately adjusted by the current control,which makes the MRD easy to control the pedal force adjustment.

关 键 词：再生制动 踏板力 磁流变装置 结构设计 磁路优化 

分 类 号：U463.5[机械工程—车辆工程]