當前電(dian)(dian)子(zi)(zi)液(ye)(ye)(ye)壓(ya)制(zhi)(zhi)(zhi)動(dong)(dong)系(xi)統(tong)(tong)（EHB）已成為(wei)國內(nei)外(wai)車輛主動(dong)(dong)安全(quan)和(he)電(dian)(dian)子(zi)(zi)領域研究熱點之一。Petruccelli等在(zai)普(pu)(pu)通(tong)制(zhi)(zhi)(zhi)動(dong)(dong)情況下(xia)提(ti)出了EHB系(xi)統(tong)(tong)前后軸制(zhi)(zhi)(zhi)動(dong)(dong)力(li)分(fen)(fen)配控制(zhi)(zhi)(zhi)策略和(he)基于該控制(zhi)(zhi)(zhi)策略的(de)制(zhi)(zhi)(zhi)動(dong)(dong)踏板(ban)感覺(jue)模擬(ni)方法，同時(shi)提(ti)出了在(zai)傳(chuan)(chuan)感器失效下(xia)控制(zhi)(zhi)(zhi)策略和(he)自診斷(duan)控制(zhi)(zhi)(zhi)方法，研究利用(yong)電(dian)(dian)子(zi)(zi)液(ye)(ye)(ye)壓(ya)制(zhi)(zhi)(zhi)動(dong)(dong)系(xi)統(tong)(tong)（EHB）提(ti)高車ABS/VDC的(de)控制(zhi)(zhi)(zhi)性能(neng)。Reuter等也在(zai)普(pu)(pu)通(tong)制(zhi)(zhi)(zhi)動(dong)(dong)情況下(xia)將(jiang)電(dian)(dian)子(zi)(zi)液(ye)(ye)(ye)壓(ya)制(zhi)(zhi)(zhi)動(dong)(dong)系(xi)統(tong)(tong)（EHB）與傳(chuan)(chuan)統(tong)(tong)液(ye)(ye)(ye)壓(ya)制(zhi)(zhi)(zhi)動(dong)(dong)系(xi)統(tong)(tong)進(jin)行(xing)比較分(fen)(fen)析(xi)(xi)，進(jin)行(xing)EHB在(zai)不同液(ye)(ye)(ye)壓(ya)設計環境的(de)分(fen)(fen)析(xi)(xi)研究，主要討論了電(dian)(dian)子(zi)(zi)液(ye)(ye)(ye)壓(ya)制(zhi)(zhi)(zhi)動(dong)(dong)系(xi)統(tong)(tong)（EHB）在(zai)供能(neng)裝置失效情況使用(yong)備用(yong)制(zhi)(zhi)(zhi)動(dong)(dong)回路的(de)制(zhi)(zhi)(zhi)動(dong)(dong)性能(neng)分(fen)(fen)析(xi)(xi)。EHB制(zhi)(zhi)(zhi)動(dong)(dong)性能(neng)不受(shou)海(hai)(hai)拔高度、發動(dong)(dong)機轉速的(de)影(ying)響(xiang)，制(zhi)(zhi)(zhi)動(dong)(dong)安全(quan)性更好。上海(hai)(hai)踏板(ban)行(xing)程傳(chuan)(chuan)感器供應(ying)商

電(dian)(dian)子液(ye)壓制(zhi)動(dong)(dong)系(xi)統（EHB）主(zhu)要(yao)優勢(shi)：(1)結(jie)構緊湊，改善了(le)制(zhi)動(dong)(dong)效能；(2)控制(zhi)方便可靠，制(zhi)動(dong)(dong)噪聲明(ming)顯減(jian)小(xiao)；(3)不需(xu)(xu)要(yao)真空裝置(zhi)，有效減(jian)輕(qing)了(le)制(zhi)動(dong)(dong)踏板(ban)(ban)的(de)(de)(de)(de)打腳，提供了(le)更好(hao)的(de)(de)(de)(de)踏板(ban)(ban)感覺；(4)由于模(mo)塊化(hua)程(cheng)度的(de)(de)(de)(de)提高，在(zai)車輛(liang)設計過(guo)程(cheng)中又提高了(le)設計的(de)(de)(de)(de)靈活性，減(jian)少了(le)制(zhi)動(dong)(dong)系(xi)統的(de)(de)(de)(de)零(ling)部(bu)件(jian)數(shu)量(liang)，節省(sheng)了(le)車內制(zhi)動(dong)(dong)系(xi)統的(de)(de)(de)(de)布置(zhi)空間(jian)。EHB的(de)(de)(de)(de)局(ju)限性是(shi)整個(ge)系(xi)統仍然需(xu)(xu)要(yao)液(ye)壓部(bu)件(jian)，離不開制(zhi)動(dong)(dong)液(ye)。EHB是(shi)在(zai)傳(chuan)(chuan)(chuan)統的(de)(de)(de)(de)液(ye)壓制(zhi)動(dong)(dong)器(qi)基礎上(shang)發(fa)展而(er)來的(de)(de)(de)(de)。與(yu)傳(chuan)(chuan)(chuan)統的(de)(de)(de)(de)汽車制(zhi)動(dong)(dong)系(xi)統有所不同，EHB以電(dian)(dian)子元件(jian)替代部(bu)分機械元件(jian)，是(shi)一個(ge)先進的(de)(de)(de)(de)機電(dian)(dian)一體(ti)化(hua)系(xi)統。集成電(dian)(dian)子踏板(ban)(ban)傳(chuan)(chuan)(chuan)感器(qi)批發(fa)EHB通過(guo)傳(chuan)(chuan)(chuan)感器(qi)采集的(de)(de)(de)(de)踏板(ban)(ban)的(de)(de)(de)(de)運動(dong)(dong)速度和(he)踏板(ban)(ban)的(de)(de)(de)(de)行程(cheng)，將信號傳(chuan)(chuan)(chuan)遞(di)給ECU。

傳(chuan)統(tong)(tong)液(ye)壓制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)實(shi)現車輛制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)功能(neng)是直(zhi)接通(tong)過液(ye)壓裝(zhuang)置來傳(chuan)遞(di)和實(shi)施(shi)的(de)(de)，而線(xian)控制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)則(ze)是利(li)用(yong)物(wu)理信(xin)號傳(chuan)遞(di)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)信(xin)息，使用(yong)電(dian)子(zi)控制(zhi)(zhi)單元控制(zhi)(zhi)機(ji)電(dian)一(yi)體化裝(zhuang)置來實(shi)施(shi)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)。因(yin)此從本質而言，電(dian)子(zi)液(ye)壓制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)(electronichydraulicbrake，EHB)并不(bu)是真正意義上的(de)(de)線(xian)控制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)。因(yin)為雖然(ran)(ran)EHB能(neng)完(wan)全單獨于制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)踏板(ban)(ban)而進行制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)，但是其(qi)(qi)物(wu)理線(xian)路(lu)沒有(you)延伸(shen)到車輪(lun)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器，電(dian)子(zi)液(ye)壓制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)仍需要制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)液(ye)將制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)能(neng)量從蓄能(neng)器傳(chuan)遞(di)到制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)輪(lun)缸。但是就目前(qian)而言，這種結構(gou)相比于其(qi)(qi)他(ta)線(xian)控制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)具(ju)有(you)一(yi)定的(de)(de)優勢，因(yin)為原有(you)的(de)(de)液(ye)壓制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)系統(tong)(tong)結構(gou)得以(yi)保留(liu)，可(ke)以(yi)使用(yong)人力(li)在供能(neng)裝(zhuang)置失效的(de)(de)情況下作為備(bei)用(yong)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)選項。在傳(chuan)統(tong)(tong)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)工況時，EHB通(tong)過系統(tong)(tong)內置的(de)(de)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)踏板(ban)(ban)行程傳(chuan)感器感知(zhi)駕(jia)駛員(yuan)的(de)(de)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)意圖(tu)，并將這個信(xin)號傳(chuan)送給(gei)ECU，ECU根(gen)據駕(jia)駛員(yuan)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)意圖(tu)以(yi)及當前(qian)工況等各(ge)項因(yin)素，計算出(chu)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)力(li)需求(qiu)，然(ran)(ran)后驅動(dong)(dong)(dong)(dong)(dong)(dong)EHB電(dian)機(ji)，帶動(dong)(dong)(dong)(dong)(dong)(dong)蝸輪(lun)蝸桿、齒輪(lun)齒條機(ji)構(gou)動(dong)(dong)(dong)(dong)(dong)(dong)作，進而推動(dong)(dong)(dong)(dong)(dong)(dong)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)主缸，產生(sheng)所需的(de)(de)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)壓力(li)。

從(cong)2007年(nian)左(zuo)右開始(shi)(shi)到現在(zai)，EHB技術開始(shi)(shi)進(jin)(jin)(jin)入(ru)網(wang)絡整合時(shi)代。制(zhi)(zhi)(zhi)動(dong)(dong)(dong)系(xi)(xi)統(tong)(tong)不再(zai)是一個單(dan)獨(du)的(de)系(xi)(xi)統(tong)(tong)，電子控(kong)(kong)(kong)制(zhi)(zhi)(zhi)單(dan)元(yuan)將它(ta)和(he)轉(zhuan)向系(xi)(xi)統(tong)(tong)、動(dong)(dong)(dong)力(li)系(xi)(xi)統(tong)(tong)及輔助駕駛(shi)(shi)(shi)(shi)(shi)系(xi)(xi)統(tong)(tong)通過網(wang)絡進(jin)(jin)(jin)行集中(zhong)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)。該(gai)(gai)系(xi)(xi)統(tong)(tong)對動(dong)(dong)(dong)力(li)系(xi)(xi)統(tong)(tong)、轉(zhuan)向系(xi)(xi)統(tong)(tong)和(he)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)系(xi)(xi)統(tong)(tong)等(deng)主要總成進(jin)(jin)(jin)行集中(zhong)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)，通過傳感器采集駕駛(shi)(shi)(shi)(shi)(shi)員(yuan)的(de)駕駛(shi)(shi)(shi)(shi)(shi)狀況和(he)汽車行駛(shi)(shi)(shi)(shi)(shi)狀態，在(zai)汽車動(dong)(dong)(dong)態達到不穩(wen)定(ding)行駛(shi)(shi)(shi)(shi)(shi)臨界狀態前就開始(shi)(shi)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)，以便保持(chi)汽車的(de)穩(wen)定(ding)性，進(jin)(jin)(jin)一步提高了(le)該(gai)(gai)車的(de)駕駛(shi)(shi)(shi)(shi)(shi)穩(wen)定(ding)性能(neng)和(he)主動(dong)(dong)(dong)安全性能(neng)。系(xi)(xi)統(tong)(tong)的(de)響應時(shi)間更快，壓(ya)力(li)波動(dong)(dong)(dong)跟小，并能(neng)明顯改善駕駛(shi)(shi)(shi)(shi)(shi)員(yuan)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)時(shi)的(de)感覺(jue)。EHB能(neng)完全單(dan)獨(du)于制(zhi)(zhi)(zhi)動(dong)(dong)(dong)踏板而(er)進(jin)(jin)(jin)行制(zhi)(zhi)(zhi)動(dong)(dong)(dong)。

EHB是一種線控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)系(xi)(xi)統(tong)，它以(yi)電子元件替(ti)代了部分(fen)機械元件，制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)踏板不再與制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)輪(lun)缸(gang)直接(jie)相(xiang)連，駕駛員操(cao)作(zuo)由傳(chuan)感(gan)器采(cai)集作(zuo)為控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)意圖，完全(quan)由液(ye)壓(ya)(ya)執行器來(lai)完成制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)操(cao)作(zuo)，使制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)得到自由度，從而充分(fen)利用路面(mian)附(fu)著，提高(gao)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)效率。在制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)踏板生產位移的(de)(de)過(guo)程中(zhong)，數(shu)據采(cai)集系(xi)(xi)統(tong)將采(cai)集到的(de)(de)踏板行程傳(chuan)感(gan)器、各制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)器壓(ya)(ya)力(li)傳(chuan)感(gan)器等反(fan)饋(kui)信(xin)(xin)號(hao)(hao)輸(shu)入到電子控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)單元進(jin)行分(fen)析(xi)和判斷，對(dui)進(jin)出液(ye)電磁閥分(fen)別進(jin)行調節，當(dang)系(xi)(xi)統(tong)需(xu)要(yao)增壓(ya)(ya)時(shi)，進(jin)液(ye)閥打開(kai)出液(ye)閥關(guan)閉(bi)，當(dang)系(xi)(xi)統(tong)需(xu)要(yao)保壓(ya)(ya)時(shi)進(jin)出液(ye)閥均關(guan)閉(bi)，當(dang)系(xi)(xi)統(tong)需(xu)要(yao)減壓(ya)(ya)時(shi)，進(jin)液(ye)閥關(guan)閉(bi)出液(ye)閥打開(kai)。通過(guo)輸(shu)入PWM控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號(hao)(hao)給高(gao)速(su)開(kai)關(guan)閥從而控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)各車輪(lun)上的(de)(de)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)壓(ya)(ya)力(li)。通過(guo)CAN總線技術ECU還可(ke)以(yi)接(jie)收來(lai)自于(yu)ABS，ASR，ESP的(de)(de)汽車動(dong)(dong)(dong)態數(shu)據，經過(guo)分(fen)析(xi)和處理(li)，將控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)信(xin)(xin)號(hao)(hao)發送到相(xiang)應(ying)的(de)(de)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)單元，對(dui)汽車進(jin)行優化控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)。EHB以(yi)電子元件加(jia)以(yi)替(ti)代原(yuan)始制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)系(xi)(xi)統(tong)中(zhong)的(de)(de)部分(fen)機械元件，制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)系(xi)(xi)統(tong)中(zhong)原(yuan)有(you)的(de)(de)液(ye)壓(ya)(ya)系(xi)(xi)統(tong)不作(zuo)大的(de)(de)改變(bian)。武漢電子助(zhu)力(li)傳(chuan)感(gan)器

EHB有以下亮(liang)點：高精度、快速響應、高建壓能(neng)力、高可靠性的主動制動力控(kong)制。上海踏板行程傳感器供應商

電(dian)子(zi)液(ye)(ye)壓(ya)(ya)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)系統（EHB），通(tong)過將制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)踏(ta)板(ban)臂與(yu)(yu)殼(ke)體(ti)(ti)通(tong)過活動(dong)(dong)(dong)(dong)(dong)組(zu)件(jian)活動(dong)(dong)(dong)(dong)(dong)連(lian)接(jie)(jie)，制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)踏(ta)板(ban)臂上設置的(de)(de)(de)推(tui)桿伸入殼(ke)體(ti)(ti)內(nei)，且(qie)與(yu)(yu)第2回位(wei)件(jian)相接(jie)(jie)觸，使用(yong)(yong)時踩(cai)動(dong)(dong)(dong)(dong)(dong)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)踏(ta)板(ban)臂通(tong)過活動(dong)(dong)(dong)(dong)(dong)組(zu)件(jian)帶動(dong)(dong)(dong)(dong)(dong)推(tui)桿在中空(kong)通(tong)道(dao)首部(bu)前后(hou)移動(dong)(dong)(dong)(dong)(dong)，制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)踏(ta)板(ban)臂上的(de)(de)(de)推(tui)桿直接(jie)(jie)推(tui)動(dong)(dong)(dong)(dong)(dong)殼(ke)體(ti)(ti)內(nei)的(de)(de)(de)活塞，同時活塞內(nei)的(de)(de)(de)第1回位(wei)件(jian)、第2活動(dong)(dong)(dong)(dong)(dong)件(jian)與(yu)(yu)殼(ke)體(ti)(ti)內(nei)的(de)(de)(de)剎車(che)液(ye)(ye)受(shou)推(tui)力反作用(yong)(yong)于動(dong)(dong)(dong)(dong)(dong)踏(ta)板(ban)臂，為駕駛員提供動(dong)(dong)(dong)(dong)(dong)踏(ta)板(ban)臂，同時這樣的(de)(de)(de)結構的(de)(de)(de)設計，使得電(dian)子(zi)液(ye)(ye)壓(ya)(ya)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)系統（EHB）整體(ti)(ti)結構更(geng)加緊湊，便于生產以(yi)及節(jie)約空(kong)間(jian)(jian)，而且(qie)能(neng)夠以(yi)較少的(de)(de)(de)部(bu)件(jian)數量，簡(jian)單的(de)(de)(de)零件(jian)結構，實(shi)現機動(dong)(dong)(dong)(dong)(dong)車(che)的(de)(de)(de)一般制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)、緊急制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)、主動(dong)(dong)(dong)(dong)(dong)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)以(yi)及失效備(bei)份制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)，提高系統響應時間(jian)(jian)、精確控制(zhi)(zhi)液(ye)(ye)壓(ya)(ya)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)力；且(qie)該(gai)電(dian)子(zi)液(ye)(ye)壓(ya)(ya)制(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)系統（EHB）不僅(jin)結構簡(jian)單、易(yi)制(zhi)(zhi)造，且(qie)使用(yong)(yong)安全可靠，便于實(shi)施推(tui)廣應用(yong)(yong)。上海踏(ta)板(ban)行程傳感器(qi)供應商

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