Development and Control of a Magnetorheological Damper‑Based Brake Pedal Simulator for Vehicle Brake‑by‑Wire Systems  

作　　者：Daoming Wang Biao Wang Bin Zi Xianxu Bai Wuwei Chen 

机构地区：[1]School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,China [2]School of Automobile and Transportation Engineering,Hefei University of Technology,Hefei 230009,China

出　　处：《Chinese Journal of Mechanical Engineering》2022年第6期390-402,共13页中国机械工程学报（英文版）

基　　金：National Natural Science Foundation of China(Grant Nos.52175047 and 51505114);Anhui Provincial Natural Science Foundation of China(Grant No.2008085ME140).

摘　　要：Recent developments have demonstrated that the brake pedal simulator(BPS)is becoming an indispensable apparatus for the break-by-wire systems in future electric vehicles.Its main function is to provide the driver with a comfortable pedal feel to improve braking safety and comfort.This paper presents the development and control of an adjustable BPS,using a disk-type magnetorheological(MR)damper as the passive braking reaction generator to simulate the traditional pedal feel.A detailed description of the mechanical design of the MR damper-based BSP(MRDBBPS)is presented in this paper.Several basic performance experiments on the MRDBBPS prototype are conducted.A returnto-zero(RTZ)algorithm is proposed to avoid hysteresis and improve the repeatability of the pedal force.In addition,an RTZ algorithm-based real-time current-tracking controller(RTZRC)is designed in consideration of the response lag of the coil circuit.Finally,an experimental system is established by integrating the MRDBBPS prototype into a selfdeveloped automotive MR braking test bench(AMRBTB),and several control and braking experiments are performed.This research proposes a RTZRC control algorithm which can significantly increase the tracking accuracy of the brake pedal characteristic curve,particularly at a high pedal velocity.Additionally,the designed MRDBBPS prototype can achieve an effective and favorable control of the AMRBTB with a good repeatability.

关 键 词：Brake pedal simulator Magnetorheological damper Return-to-zero algorithm Real-time current-tracking control Experimental evaluation 

分 类 号：U463.5[机械工程—车辆工程]