当前电(dian)(dian)子液压(ya)(ya)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)统(tong)（EHB）已成为国(guo)内外(wai)车辆(liang)主动(dong)(dong)(dong)(dong)安(an)全和电(dian)(dian)子领域(yu)研究(jiu)热点之一。Petruccelli等在(zai)(zai)普通(tong)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)情(qing)况(kuang)下(xia)(xia)提(ti)出了EHB系(xi)统(tong)前后轴制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)力分配控(kong)(kong)制(zhi)(zhi)(zhi)策(ce)略(lve)和基于该控(kong)(kong)制(zhi)(zhi)(zhi)策(ce)略(lve)的(de)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)踏板感觉模拟方法(fa)，同(tong)时提(ti)出了在(zai)(zai)传感器(qi)失效(xiao)下(xia)(xia)控(kong)(kong)制(zhi)(zhi)(zhi)策(ce)略(lve)和自(zi)诊断控(kong)(kong)制(zhi)(zhi)(zhi)方法(fa)，研究(jiu)利用电(dian)(dian)子液压(ya)(ya)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)统(tong)（EHB）提(ti)高车ABS/VDC的(de)控(kong)(kong)制(zhi)(zhi)(zhi)性(xing)能(neng)。Reuter等也在(zai)(zai)普通(tong)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)情(qing)况(kuang)下(xia)(xia)将电(dian)(dian)子液压(ya)(ya)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)统(tong)（EHB）与(yu)传统(tong)液压(ya)(ya)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)统(tong)进(jin)行比较(jiao)分析，进(jin)行EHB在(zai)(zai)不同(tong)液压(ya)(ya)设计环境的(de)分析研究(jiu)，主要讨论了电(dian)(dian)子液压(ya)(ya)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)统(tong)（EHB）在(zai)(zai)供(gong)能(neng)装(zhuang)置(zhi)失效(xiao)情(qing)况(kuang)使(shi)用备用制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)回路的(de)制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)性(xing)能(neng)分析。EHB制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)性(xing)能(neng)不受海拔(ba)高度(du)、发(fa)动(dong)(dong)(dong)(dong)机转速的(de)影响，制(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)安(an)全性(xing)更好。上(shang)海踏板行程传感器(qi)供(gong)应商

电(dian)(dian)(dian)子液(ye)(ye)压(ya)制(zhi)(zhi)(zhi)动系(xi)(xi)(xi)统(tong)（EHB）主要优势(shi)：(1)结(jie)构紧凑，改善了(le)(le)(le)制(zhi)(zhi)(zhi)动效能(neng)；(2)控制(zhi)(zhi)(zhi)方便(bian)可靠，制(zhi)(zhi)(zhi)动噪声明显减(jian)小；(3)不需要真空装置(zhi)，有效减(jian)轻了(le)(le)(le)制(zhi)(zhi)(zhi)动踏(ta)(ta)板的(de)(de)(de)打脚，提供了(le)(le)(le)更(geng)好的(de)(de)(de)踏(ta)(ta)板感觉；(4)由于(yu)模块化(hua)程度的(de)(de)(de)提高，在(zai)车(che)(che)辆设计(ji)过程中又提高了(le)(le)(le)设计(ji)的(de)(de)(de)灵活性(xing)，减(jian)少(shao)了(le)(le)(le)制(zhi)(zhi)(zhi)动系(xi)(xi)(xi)统(tong)的(de)(de)(de)零部件(jian)数量，节省了(le)(le)(le)车(che)(che)内制(zhi)(zhi)(zhi)动系(xi)(xi)(xi)统(tong)的(de)(de)(de)布置(zhi)空间。EHB的(de)(de)(de)局(ju)限性(xing)是整个(ge)系(xi)(xi)(xi)统(tong)仍然(ran)需要液(ye)(ye)压(ya)部件(jian)，离不开制(zhi)(zhi)(zhi)动液(ye)(ye)。EHB是在(zai)传(chuan)(chuan)统(tong)的(de)(de)(de)液(ye)(ye)压(ya)制(zhi)(zhi)(zhi)动器(qi)基础上发展而来的(de)(de)(de)。与(yu)传(chuan)(chuan)统(tong)的(de)(de)(de)汽车(che)(che)制(zhi)(zhi)(zhi)动系(xi)(xi)(xi)统(tong)有所不同，EHB以电(dian)(dian)(dian)子元件(jian)替(ti)代部分机械元件(jian)，是一个(ge)先进的(de)(de)(de)机电(dian)(dian)(dian)一体化(hua)系(xi)(xi)(xi)统(tong)。集成电(dian)(dian)(dian)子踏(ta)(ta)板传(chuan)(chuan)感器(qi)批发EHB通过传(chuan)(chuan)感器(qi)采集的(de)(de)(de)踏(ta)(ta)板的(de)(de)(de)运动速度和踏(ta)(ta)板的(de)(de)(de)行(xing)程，将信号传(chuan)(chuan)递给(ji)ECU。

传(chuan)(chuan)(chuan)统液(ye)压(ya)(ya)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统实现(xian)车(che)辆制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)功能(neng)是(shi)(shi)直接通过液(ye)压(ya)(ya)装置来(lai)传(chuan)(chuan)(chuan)递和实施(shi)的(de)，而线(xian)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统则是(shi)(shi)利用物理(li)信(xin)号传(chuan)(chuan)(chuan)递制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)信(xin)息，使用电(dian)子(zi)(zi)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)单(dan)元控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)机(ji)电(dian)一体(ti)化装置来(lai)实施(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)。因此从本质而言(yan)，电(dian)子(zi)(zi)液(ye)压(ya)(ya)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统(electronichydraulicbrake，EHB)并不(bu)是(shi)(shi)真正意(yi)义上(shang)的(de)线(xian)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统。因为(wei)(wei)虽(sui)然EHB能(neng)完全单(dan)独于制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)踏板而进(jin)行制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)，但(dan)是(shi)(shi)其(qi)物理(li)线(xian)路没(mei)有(you)(you)(you)延伸到车(che)轮(lun)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)器，电(dian)子(zi)(zi)液(ye)压(ya)(ya)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统仍需要制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)液(ye)将(jiang)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)能(neng)量从蓄(xu)能(neng)器传(chuan)(chuan)(chuan)递到制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)轮(lun)缸(gang)。但(dan)是(shi)(shi)就目(mu)前(qian)而言(yan)，这种结构相(xiang)比于其(qi)他(ta)线(xian)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统具(ju)有(you)(you)(you)一定的(de)优势(shi)，因为(wei)(wei)原有(you)(you)(you)的(de)液(ye)压(ya)(ya)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)统结构得以(yi)保留，可以(yi)使用人力在供能(neng)装置失(shi)效的(de)情况下作(zuo)为(wei)(wei)备用制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)选项(xiang)。在传(chuan)(chuan)(chuan)统制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)工况时，EHB通过系(xi)统内置的(de)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)踏板行程传(chuan)(chuan)(chuan)感器感知驾(jia)驶员(yuan)的(de)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)意(yi)图，并将(jiang)这个(ge)信(xin)号传(chuan)(chuan)(chuan)送给ECU，ECU根据驾(jia)驶员(yuan)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)意(yi)图以(yi)及(ji)当前(qian)工况等(deng)各项(xiang)因素，计算出制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力需求，然后驱动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)EHB电(dian)机(ji)，带动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)蜗(wo)轮(lun)蜗(wo)杆、齿轮(lun)齿条(tiao)机(ji)构动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)，进(jin)而推动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)主缸(gang)，产(chan)生所需的(de)制(zhi)(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)压(ya)(ya)力。

从2007年左(zuo)右开(kai)(kai)始(shi)(shi)(shi)到(dao)现在(zai)，EHB技术(shu)开(kai)(kai)始(shi)(shi)(shi)进(jin)入网络整合时(shi)代。制(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)系统(tong)不再是一个单独的(de)系统(tong)，电子控制(zhi)(zhi)(zhi)(zhi)单元将(jiang)它和转向系统(tong)、动(dong)(dong)(dong)力系统(tong)及辅助驾(jia)(jia)驶(shi)(shi)系统(tong)通过网络进(jin)行(xing)集(ji)中(zhong)控制(zhi)(zhi)(zhi)(zhi)。该系统(tong)对动(dong)(dong)(dong)力系统(tong)、转向系统(tong)和制(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)系统(tong)等(deng)主要总成进(jin)行(xing)集(ji)中(zhong)控制(zhi)(zhi)(zhi)(zhi)，通过传感(gan)器采(cai)集(ji)驾(jia)(jia)驶(shi)(shi)员(yuan)的(de)驾(jia)(jia)驶(shi)(shi)状(zhuang)况和汽车(che)行(xing)驶(shi)(shi)状(zhuang)态(tai)，在(zai)汽车(che)动(dong)(dong)(dong)态(tai)达到(dao)不稳(wen)定行(xing)驶(shi)(shi)临界状(zhuang)态(tai)前就开(kai)(kai)始(shi)(shi)(shi)控制(zhi)(zhi)(zhi)(zhi)，以便保持汽车(che)的(de)稳(wen)定性，进(jin)一步提高了该车(che)的(de)驾(jia)(jia)驶(shi)(shi)稳(wen)定性能和主动(dong)(dong)(dong)安全性能。系统(tong)的(de)响(xiang)应时(shi)间更快，压力波动(dong)(dong)(dong)跟小，并能明(ming)显改善驾(jia)(jia)驶(shi)(shi)员(yuan)制(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)时(shi)的(de)感(gan)觉。EHB能完(wan)全单独于制(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)踏(ta)板而进(jin)行(xing)制(zhi)(zhi)(zhi)(zhi)动(dong)(dong)(dong)。

EHB是一(yi)种线控(kong)制(zhi)(zhi)(zhi)动(dong)(dong)系统(tong)(tong)，它以(yi)电(dian)(dian)子元(yuan)(yuan)(yuan)件(jian)替(ti)(ti)代了部分(fen)机械元(yuan)(yuan)(yuan)件(jian)，制(zhi)(zhi)(zhi)动(dong)(dong)踏(ta)板(ban)不再(zai)与制(zhi)(zhi)(zhi)动(dong)(dong)轮(lun)缸直接相(xiang)连(lian)，驾驶员操(cao)作由传感(gan)器(qi)采(cai)集(ji)作为控(kong)制(zhi)(zhi)(zhi)意图，完(wan)全(quan)由液压(ya)执(zhi)行器(qi)来完(wan)成制(zhi)(zhi)(zhi)动(dong)(dong)操(cao)作，使(shi)制(zhi)(zhi)(zhi)动(dong)(dong)控(kong)制(zhi)(zhi)(zhi)得到自由度，从而(er)充分(fen)利用(yong)路面附(fu)着，提高(gao)(gao)制(zhi)(zhi)(zhi)动(dong)(dong)效(xiao)率(lv)。在制(zhi)(zhi)(zhi)动(dong)(dong)踏(ta)板(ban)生产位移的(de)过(guo)(guo)(guo)程中，数(shu)据(ju)采(cai)集(ji)系统(tong)(tong)将采(cai)集(ji)到的(de)踏(ta)板(ban)行程传感(gan)器(qi)、各制(zhi)(zhi)(zhi)动(dong)(dong)器(qi)压(ya)力(li)传感(gan)器(qi)等反馈(kui)信号(hao)输入(ru)到电(dian)(dian)子控(kong)制(zhi)(zhi)(zhi)单元(yuan)(yuan)(yuan)进(jin)(jin)行分(fen)析(xi)和判断，对(dui)进(jin)(jin)出(chu)液电(dian)(dian)磁阀(fa)分(fen)别进(jin)(jin)行调节，当(dang)(dang)系统(tong)(tong)需(xu)要增压(ya)时(shi)，进(jin)(jin)液阀(fa)打开(kai)出(chu)液阀(fa)关(guan)闭(bi)，当(dang)(dang)系统(tong)(tong)需(xu)要保压(ya)时(shi)进(jin)(jin)出(chu)液阀(fa)均关(guan)闭(bi)，当(dang)(dang)系统(tong)(tong)需(xu)要减(jian)压(ya)时(shi)，进(jin)(jin)液阀(fa)关(guan)闭(bi)出(chu)液阀(fa)打开(kai)。通过(guo)(guo)(guo)输入(ru)PWM控(kong)制(zhi)(zhi)(zhi)信号(hao)给高(gao)(gao)速开(kai)关(guan)阀(fa)从而(er)控(kong)制(zhi)(zhi)(zhi)各车(che)(che)轮(lun)上的(de)制(zhi)(zhi)(zhi)动(dong)(dong)压(ya)力(li)。通过(guo)(guo)(guo)CAN总线技术ECU还可以(yi)接收来自于ABS，ASR，ESP的(de)汽车(che)(che)动(dong)(dong)态数(shu)据(ju)，经过(guo)(guo)(guo)分(fen)析(xi)和处理，将控(kong)制(zhi)(zhi)(zhi)信号(hao)发送到相(xiang)应的(de)控(kong)制(zhi)(zhi)(zhi)单元(yuan)(yuan)(yuan)，对(dui)汽车(che)(che)进(jin)(jin)行优化控(kong)制(zhi)(zhi)(zhi)。EHB以(yi)电(dian)(dian)子元(yuan)(yuan)(yuan)件(jian)加以(yi)替(ti)(ti)代原始制(zhi)(zhi)(zhi)动(dong)(dong)系统(tong)(tong)中的(de)部分(fen)机械元(yuan)(yuan)(yuan)件(jian)，制(zhi)(zhi)(zhi)动(dong)(dong)系统(tong)(tong)中原有的(de)液压(ya)系统(tong)(tong)不作大(da)的(de)改变。武汉电(dian)(dian)子助力(li)传感(gan)器(qi)

EHB有以下亮点：高精度、快速响应、高建压(ya)能力、高可靠性的主动制(zhi)动力控制(zhi)。上海(hai)踏板行程传(chuan)感器供(gong)应商(shang)

电(dian)子液(ye)(ye)压(ya)制(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)(xi)统（EHB），通(tong)过将(jiang)制(zhi)(zhi)动(dong)(dong)(dong)(dong)踏(ta)(ta)板臂与壳(qiao)(qiao)体(ti)(ti)(ti)通(tong)过活(huo)(huo)动(dong)(dong)(dong)(dong)组(zu)件(jian)活(huo)(huo)动(dong)(dong)(dong)(dong)连接，制(zhi)(zhi)动(dong)(dong)(dong)(dong)踏(ta)(ta)板臂上(shang)设置的(de)(de)(de)推杆(gan)伸(shen)入壳(qiao)(qiao)体(ti)(ti)(ti)内(nei)，且与第(di)2回位(wei)件(jian)相接触，使(shi)用(yong)(yong)时踩动(dong)(dong)(dong)(dong)制(zhi)(zhi)动(dong)(dong)(dong)(dong)踏(ta)(ta)板臂通(tong)过活(huo)(huo)动(dong)(dong)(dong)(dong)组(zu)件(jian)带动(dong)(dong)(dong)(dong)推杆(gan)在中空(kong)(kong)通(tong)道首部前后移动(dong)(dong)(dong)(dong)，制(zhi)(zhi)动(dong)(dong)(dong)(dong)踏(ta)(ta)板臂上(shang)的(de)(de)(de)推杆(gan)直接推动(dong)(dong)(dong)(dong)壳(qiao)(qiao)体(ti)(ti)(ti)内(nei)的(de)(de)(de)活(huo)(huo)塞，同(tong)时活(huo)(huo)塞内(nei)的(de)(de)(de)第(di)1回位(wei)件(jian)、第(di)2活(huo)(huo)动(dong)(dong)(dong)(dong)件(jian)与壳(qiao)(qiao)体(ti)(ti)(ti)内(nei)的(de)(de)(de)刹车(che)液(ye)(ye)受推力反作用(yong)(yong)于动(dong)(dong)(dong)(dong)踏(ta)(ta)板臂，为驾驶员提供(gong)动(dong)(dong)(dong)(dong)踏(ta)(ta)板臂，同(tong)时这样的(de)(de)(de)结构(gou)的(de)(de)(de)设计，使(shi)得电(dian)子液(ye)(ye)压(ya)制(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)(xi)统（EHB）整体(ti)(ti)(ti)结构(gou)更(geng)加紧凑，便(bian)于生产以及节约空(kong)(kong)间，而且能够以较少的(de)(de)(de)部件(jian)数量，简(jian)单的(de)(de)(de)零件(jian)结构(gou)，实现机(ji)动(dong)(dong)(dong)(dong)车(che)的(de)(de)(de)一般制(zhi)(zhi)动(dong)(dong)(dong)(dong)、紧急制(zhi)(zhi)动(dong)(dong)(dong)(dong)、主动(dong)(dong)(dong)(dong)制(zhi)(zhi)动(dong)(dong)(dong)(dong)以及失效备份(fen)制(zhi)(zhi)动(dong)(dong)(dong)(dong)，提高系(xi)(xi)统响应时间、精确控制(zhi)(zhi)液(ye)(ye)压(ya)制(zhi)(zhi)动(dong)(dong)(dong)(dong)力；且该(gai)电(dian)子液(ye)(ye)压(ya)制(zhi)(zhi)动(dong)(dong)(dong)(dong)系(xi)(xi)统（EHB）不仅结构(gou)简(jian)单、易(yi)制(zhi)(zhi)造，且使(shi)用(yong)(yong)安全可靠，便(bian)于实施推广应用(yong)(yong)。上(shang)海踏(ta)(ta)板行程传感(gan)器供(gong)应商

本文来自海润(run)达(da)物(wu)联(lian)科(ke)技有限(xian)责任公司(si)：//qfd1mz.cn/Article/30d10699863.html