雖然早在 1999年《 GB17761-1999電(dian)(dian)(dian)動(dong)自(zi)行(xing)車(che)(che)(che)通用技術條件》對電(dian)(dian)(dian)動(dong)自(zi)行(xing)車(che)(che)(che)有(you)過(guo)名確的(de)(de)定義，也有(you)著(zhu)詳(xiang)盡的(de)(de)規范，然而(er)實際(ji)的(de)(de)現(xian)狀是(shi)(shi)絕大多數電(dian)(dian)(dian)動(dong)自(zi)行(xing)車(che)(che)(che)突破了這(zhe)(zhe)(zhe)個(ge)限(xian)制，經過(guo) 10年演變(bian)成了與這(zhe)(zhe)(zhe)個(ge)國家標(biao)準(zhun)幾乎沒(mei)有(you)什么關(guan)系(xi)的(de)(de)另外一種產品(pin)。在這(zhe)(zhe)(zhe)里，單從技術的(de)(de)角(jiao)度，笨(ben)重的(de)(de)鉛酸電(dian)(dian)(dian)池，電(dian)(dian)(dian)動(dong)自(zi)行(xing)車(che)(che)(che)和電(dian)(dian)(dian)動(dong)摩托車(che)(che)(che)概念的(de)(de)混淆(xiao)是(shi)(shi)這(zhe)(zhe)(zhe)個(ge)演變(bian)的(de)(de)最主要的(de)(de)罪魁禍首。然而(er)在這(zhe)(zhe)(zhe)個(ge)演變(bian)的(de)(de)另外一個(ge)結果是(shi)(shi)，由于鉛酸電(dian)(dian)(dian)池較短的(de)(de)壽命，由于電(dian)(dian)(dian)動(dong)自(zi)行(xing)車(che)(che)(che)的(de)(de)粗制濫造(zao)，電(dian)(dian)(dian)動(dong)自(zi)行(xing)車(che)(che)(che)成為一個(ge)沒(mei)有(you)任何(he)安全，劣質短命產品(pin)代名詞(ci)。

    就在這個時(shi)候(hou)，用于電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)的(de)鋰電(dian)(dian)(dian)(dian)池日漸成熟了(le)(le)，似乎遲到了(le)(le) 10年。這個時(shi)候(hou)，普通的(de)消費者已經(jing)很難(nan)分清合格電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)和(he)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)摩托車(che)(che)(含電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)摩托車(che)(che)和(he)輕便電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)摩托車(che)(che))的(de)區別(bie)了(le)(le)；這個時(shi)候(hou)，超(chao)標(biao)的(de)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)已經(jing)在中國市場飽和(he)了(le)(le)；這個時(shi)候(hou)，超(chao)標(biao)的(de)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)消費者和(he)超(chao)標(biao)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)生產企業已經(jing)敢于和(he)制(zhi)定電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)標(biao)準的(de)國家(jia)標(biao)準化委(wei)員(yuan)會叫(jiao)板了(le)(le)。

    然而(er)，然而(er)鋰(li)電(dian)池必然和(he)電(dian)動自(zi)行車有一個完美(mei)的(de)(de)(de)結合(he)，這(zhe)是由于鋰(li)電(dian)池獨有的(de)(de)(de)輕(qing)便和(he)超長壽命(ming)的(de)(de)(de)本質屬性(xing)決定(ding)的(de)(de)(de)，鋰(li)電(dian)池必然為電(dian)動自(zi)行車插上(shang)騰飛的(de)(de)(de)翅膀(bang)。

    在電(dian)動(dong)自(zi)(zi)行(xing)車(che)行(xing)業已經迎來(lai)第(di)二次生命的(de)(de)今天，為了能(neng)讓電(dian)動(dong)自(zi)(zi)行(xing)車(che)行(xing)業有一個健康(kang)的(de)(de)的(de)(de)發展(zhan)，我們有責(ze)任來(lai)思(si)考(kao)和(he)回答一些最基礎問題(ti)。當然這(zhe)些問題(ti)都將圍繞(rao)著電(dian)動(dong)自(zi)(zi)行(xing)車(che)的(de)(de)設計(ji)這(zhe)個載體展(zhan)開(kai)。 

    談(tan)到電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)車(che)(che)(che)(che)(che)的設(she)計(ji)，我們(men)首先(xian)要搞(gao)清一(yi)(yi)些(xie)基本的問題。什(shen)么(me)(me)是(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)的工業(ye)基礎是(shi)什(shen)么(me)(me)？什(shen)么(me)(me)是(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)的靈魂？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)有(you)三種(zhong)騎行(xing)(xing)(xing)狀態(tai)，即純(chun)人力騎行(xing)(xing)(xing)，純(chun)電(dian)(dian)動(dong)(dong)騎行(xing)(xing)(xing)，電(dian)(dian)動(dong)(dong)力和人力騎行(xing)(xing)(xing)混(hun)合(he)(he)。三者的關系是(shi)什(shen)么(me)(me)，電(dian)(dian)動(dong)(dong)力和人力騎行(xing)(xing)(xing)混(hun)合(he)(he)是(shi)一(yi)(yi)種(zhong)什(shen)么(me)(me)樣的混(hun)合(he)(he)？什(shen)么(me)(me)是(shi)設(she)計(ji)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)的第一(yi)(yi)要素？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)的設(she)計(ji)要求有(you)：安(an)全，時尚美(mei)觀，舒(shu)適便捷，便于(yu)規模化生(sheng)產，長期穩(wen)定性，維修便利等，在這些(xie)因素中誰是(shi)最重(zhong)要的，誰是(shi)次要的，誰是(shi)應當兼顧考(kao)慮的；它們(men)之間(jian)又(you)是(shi)一(yi)(yi)種(zhong)什(shen)么(me)(me)樣的關系？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)和電(dian)(dian)動(dong)(dong)摩托及自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)的本質區別是(shi)什(shen)么(me)(me)？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)(zi)行(xing)(xing)(xing)車(che)(che)(che)(che)(che)的理(li)想模型是(shi)什(shen)么(me)(me)樣的？

第(di)一，什么事(shi)電(dian)動自行車？

     國標委(wei)員會(hui)《 GB17761-1999電動自(zi)行車通用(yong)技術條件(jian)》的定義是：電動自(zi)行車是以蓄電池作為輔助(zhu)能源，具有兩個車輪，能夠實現(xian)人力(li)騎(qi)行，電動或電動助(zhu)力(li)騎(qi)行的特(te)種(zhong)自(zi)行車。

從這個定義可已看出以下幾點： 
1、電動自行車是特種自行車，屬于自行車的一種； 
2、蓄電池為輔助能源； 
3、能夠實現人力騎行； 
4、能夠實現電動(dong)力或(huo)助力騎行。

     這(zhe)個解(jie)釋很(hen)好(hao)的(de)(de)回(hui)(hui)答了(le)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)是以蓄電(dian)(dian)(dian)(dian)池為輔(fu)助能源，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)是自(zi)(zi)(zi)行(xing)(xing)車(che)(che)的(de)(de)一(yi)種(zhong)(zhong)，屬于特(te)種(zhong)(zhong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)。但是沒有說(shuo)明(ming)(ming)人力(li)騎行(xing)(xing)，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)或助力(li)騎行(xing)(xing)三者的(de)(de)辯證關系，沒有很(hen)好(hao)的(de)(de)回(hui)(hui)答電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)與(yu)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)和(he)輕(qing)便電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)摩(mo)托的(de)(de)區別的(de)(de)本質(zhi)屬性是什么。我覺(jue)得這(zhe)樣(yang)解(jie)釋更能說(shuo)明(ming)(ming)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)的(de)(de)本質(zhi)屬性即：電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)是一(yi)種(zhong)(zhong)在自(zi)(zi)(zi)行(xing)(xing)車(che)(che)的(de)(de)基(ji)礎(chu)上融(rong)入電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)功能，并且能夠實(shi)現人力(li)和(he)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)力(li)有機協同工作的(de)(de)一(yi)種(zhong)(zhong)輕(qing)便特(te)種(zhong)(zhong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)。

第二，電動自行車的工業基礎是什么？
    既然電動(dong)自(zi)(zi)行(xing)車(che)(che)(che)(che)是自(zi)(zi)行(xing)車(che)(che)(che)(che)的(de)一(yi)種(zhong)，是一(yi)種(zhong)特殊的(de)自(zi)(zi)行(xing)車(che)(che)(che)(che)，那(nei)么電動(dong)自(zi)(zi)行(xing)車(che)(che)(che)(che)的(de)工業基礎(chu)就(jiu)是自(zi)(zi)行(xing)車(che)(che)(che)(che)。電動(dong)自(zi)(zi)行(xing)車(che)(che)(che)(che)其他(ta)部件的(de)和系統的(de)設(she)計(ji)都應該圍繞這個工業基礎(chu)展開。偏離了這個基礎(chu)，就(jiu)會搞(gao)出一(yi)些(xie)四不(bu)象的(de)怪(guai)胎。像摩(mo)托一(yi)樣超(chao)標(biao)電動(dong)車(che)(che)(che)(che)就(jiu)是一(yi)個典(dian)型的(de)例子。

第三，什么是電動自行車的靈魂？
     電動自(zi)行車有三種騎行狀態，即純(chun)人力騎行，純(chun)電動騎行，電動助力。

     三者的關系是(shi)(shi)什么(me)，電(dian)(dian)(dian)(dian)動力(li)(li)(li)和人(ren)(ren)力(li)(li)(li)騎(qi)行(xing)(xing)(xing)(xing)混合(he)是(shi)(shi)一種什么(me)樣的混合(he)？純(chun)人(ren)(ren)力(li)(li)(li)踩踏騎(qi)行(xing)(xing)(xing)(xing)是(shi)(shi)基礎，電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)不(bu)可(ke)避免的會出(chu)現路上電(dian)(dian)(dian)(dian)量用盡的時(shi)候(hou)，如果(guo)沒(mei)有人(ren)(ren)力(li)(li)(li)騎(qi)行(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)拋錨(mao)在路上是(shi)(shi)一件非常討厭的事(shi)情，同(tong)時(shi)沒(mei)有騎(qi)行(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)電(dian)(dian)(dian)(dian)動兩輪車(che)(che)也不(bu)能(neng)(neng)成(cheng)為(wei)電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)。但(dan)是(shi)(shi)現在的問題是(shi)(shi)電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)自(zi)(zi)從有了電(dian)(dian)(dian)(dian)動功(gong)能(neng)(neng)之后，騎(qi)行(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)被忽視(shi)，不(bu)少(shao)電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)純(chun)人(ren)(ren)力(li)(li)(li)騎(qi)行(xing)(xing)(xing)(xing)費力(li)(li)(li)。實際上，如果(guo)電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的腳(jiao)踏功(gong)能(neng)(neng)越費力(li)(li)(li)，則說明電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的阻力(li)(li)(li)越大，電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的阻力(li)(li)(li)越大，則同(tong)樣的電(dian)(dian)(dian)(dian)池(chi)容量電(dian)(dian)(dian)(dian)動自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的續(xu)行(xing)(xing)(xing)(xing)距離越近。

     在 2003年，一輛 36V12AH的鉛酸電池 24寸輻條輪電動自行車一次充電可以跑到 55公里，可惜現在這種產品已經買不到了，而市場上現在流行款式，一輛 48V12AH的鉛酸電池 16寸一體輪電動自行車的續行距離為 58公里。不知道這是否是一種電動自行車產品技術的進步？電動自行車的阻力是有前軸、后軸、中軸以及輪胎和地面的阻力等等構成的，降低電動自行車的阻力應當：
1減少前軸，中軸，后軸的阻力；
2選用阻力較小的輪胎， 增大車輪的直徑；
3改善整車結構，降低空氣的動態阻力； 4降低整車重量。

    只有降(jiang)低了電動(dong)自行(xing)(xing)車(che)的阻力(li)(li)，電動(dong)自行(xing)(xing)車(che)才有可能(neng)有良(liang)好(hao)的騎行(xing)(xing)能(neng)力(li)(li)，才能(neng)為電動(dong)自行(xing)(xing)車(che)的純電動(dong)及電動(dong)助力(li)(li)騎行(xing)(xing)打下良(liang)好(hao)的基礎。

    純電(dian)動(dong)(dong)騎(qi)行，毫無疑問純電(dian)動(dong)(dong)騎(qi)行是不用消耗騎(qi)行者(zhe)的(de)體力的(de)，當(dang)然在三中騎(qi)行狀態中也是最省力的(de)，同時也是最耗電(dian)的(de)一種騎(qi)行方(fang)式。但是長(chang)期純電(dian)動(dong)(dong)騎(qi)行會(hui)導致類(lei)似“摩托(tuo)車綜合(he)癥”影響健康。

    助(zhu)(zhu)力騎行，目(mu)前的(de)電動自行車(che)助(zhu)(zhu)力方式有真假兩種，使(shi)用力矩傳(chuan)感(gan)(gan)器(qi)(qi)智能助(zhu)(zhu)力騎行，使(shi)用速(su)度(du)傳(chuan)感(gan)(gan)器(qi)(qi)助(zhu)(zhu)力騎行。下面(mian)就力矩傳(chuan)感(gan)(gan)器(qi)(qi)和速(su)度(du)傳(chuan)感(gan)(gan)做一下對比。

力矩助力傳感器
速度助力傳感器

優點：
1.能夠實現人機對話，便于對整車的控制； 
2.能夠精準實現人力和電動力力的協同工作； 
3.騎行輕松，有益健康，變騎行為樂趣； 
4.有利于挖掘人力節約電力，增加續行里程； 
5.安全(quan)，杜絕推行輪盤和飛(fei)輪聯(lian)動導致的飛(fei)車。

優點： 
成本較低。
缺點：  
1.成本較高； 
2.技(ji)術成熟度較(jiao)低。

缺點(dian)：1.完全(quan)不能實現人力和(he)電動力的協同(tong)工作(zuo)；2.騎行時(shi)掌控困難(nan)，有危險(xian)性； 3.推行時(shi)輪(lun)(lun)盤和(he)飛(fei)輪(lun)(lun)聯(lian)動會導致(zhi)飛(fei)車(che)危險(xian)。

    
   鑒(jian)于速度傳(chuan)感(gan)器(qi)的(de)騎行時和(he)推行時的(de)嚴重(zhong)安全(quan)隱患，完(wan)全(quan)不(bu)能實(shi)現人力(li)和(he)電動力(li)的(de)協(xie)同(tong)工(gong)作(zuo)，根本就不(bu)是什么助(zhu)力(li)傳(chuan)感(gan)器(qi)。力(li)矩助(zhu)力(li)傳(chuan)感(gan)器(qi)則在安全(quan)等 5個方面(mian)有著明(ming)顯的(de)優勢則是真正的(de)助(zhu)力(li)傳(chuan)感(gan)器(qi)。

      從電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)的三種騎(qi)行(xing)(xing)(xing)(xing)(xing)狀態(tai)不難看出，助力(li)騎(qi)行(xing)(xing)(xing)(xing)(xing)兼顧(gu)了(le)純(chun)人力(li)踩(cai)踏騎(qi)行(xing)(xing)(xing)(xing)(xing)和(he)(he)純(chun)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)騎(qi)行(xing)(xing)(xing)(xing)(xing)的優點。能(neng)(neng)夠實現(xian)人力(li)和(he)(he)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)力(li)力(li)的協同(tong)工作；.騎(qi)行(xing)(xing)(xing)(xing)(xing)輕(qing)松，有益健(jian)康，變騎(qi)行(xing)(xing)(xing)(xing)(xing)為樂趣(qu)；有利于挖掘人力(li)節約電(dian)(dian)力(li)，增加續行(xing)(xing)(xing)(xing)(xing)里(li)程。就自行(xing)(xing)(xing)(xing)(xing)車(che)來說(shuo)純(chun)人力(li)踩(cai)踏騎(qi)行(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)是(shi)(shi)其(qi)本質屬(shu)性(xing)(xing)；就輕(qing)便電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)摩托車(che)來說(shuo)，純(chun)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)功(gong)能(neng)(neng)是(shi)(shi)其(qi)本質屬(shu)性(xing)(xing)；那么(me)什么(me)才是(shi)(shi)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)的本質屬(shu)性(xing)(xing)呢，能(neng)(neng)夠實現(xian)人力(li)和(he)(he)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)力(li)協同(tong)工作的助力(li)騎(qi)行(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)就是(shi)(shi)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)的本質屬(shu)性(xing)(xing)。助力(li)騎(qi)行(xing)(xing)(xing)(xing)(xing)是(shi)(shi)自行(xing)(xing)(xing)(xing)(xing)車(che)向電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)這一(yi)更高層次產品演化的區別和(he)(he)標(biao)志，是(shi)(shi)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)的靈魂。那種在電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)上把人力(li)腳踏功(gong)能(neng)(neng)和(he)(he)純(chun)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)功(gong)能(neng)(neng)相互孤立的設計(ji)方案只(zhi)能(neng)(neng)制(zhi)造出沒有靈魂的電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)(xing)車(che)軀(qu)殼。

    什(shen)么(me)是(shi)(shi)設計(ji)電動自(zi)行車的第(di)一要(yao)素？電動自(zi)行車的設計(ji)要(yao)求有：安全，便于規模化生產，時尚美觀(guan)，舒(shu)適便捷，穩定性，維修(xiu)便利等，在這些因素中誰是(shi)(shi)最重(zhong)要(yao)的，誰是(shi)(shi)次(ci)要(yao)的，誰是(shi)(shi)應(ying)當兼(jian)顧考(kao)慮的；它們之間又是(shi)(shi)一種什(shen)么(me)樣的關系？

    電(dian)動(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)作為一種(zhong)交通工具來說，保護消費者在使用過程中(zhong)的(de)(de)(de)人(ren)身和(he)(he)財產(chan)安(an)全無疑是最重要(yao)的(de)(de)(de)。然(ran)而目(mu)前(qian)的(de)(de)(de)市場上的(de)(de)(de)超過 70%電(dian)動(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)由于使用了速(su)度(du)傳感器和(he)(he)自(zi)(zi)(zi)動(dong)定速(su)功能（美(mei)其名曰自(zi)(zi)(zi)動(dong)巡航）有(you)嚴重安(an)全隱患(huan)的(de)(de)(de)飛車(che)，這(zhe)實在電(dian)動(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)行(xing)(xing)業的(de)(de)(de)最大悲(bei)哀！在電(dian)動(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)設計要(yao)素的(de)(de)(de)排列關系應當是：安(an)全第(di)一；穩定性(xing)其次(ci)；舒適(shi)便捷(jie)再次(ci)；便于規模化生產(chan)和(he)(he)維修(xiu)便利是一對對稱的(de)(de)(de)問題；在以上的(de)(de)(de)基礎上才有(you)資格談時(shi)尚美(mei)觀。

電動自行車的理想模型是什么樣的？
項目
參照指標
安全性
不飛車
穩定性
較長時間保持出廠時的狀態
續行里程
純電動>45KM, 純助力>90KM
電池及整車使用壽命
大于 3年
舒適便捷性
長距離駕駛不疲勞，操作便捷
速度及加速度
符合國標，加速平穩
便于規模化生產程度
部件一致化程度高，便于流水線生產
維修便利性
整車便于拆卸維修；部件一直化程度高，通用性強便于更換
時尚美觀性
以自行車的審美觀評判
剎車距離
距離較短，減速均勻
重量的分布均勻程度
重量分布均勻
電量顯示的偏差程度
能夠即使反映電池實際容量
線束布局合理及隱蔽性
簡練，能夠隱蔽盡量隱蔽
騎行阻力系數
 以自行車為參照標準
整車重量
鋁合金<25KG，碳鋼<26KG 

電動自行車和電動摩托及自行車的本質區別是什么？
    就自行(xing)(xing)車(che)來(lai)(lai)說純(chun)人力(li)踩踏騎行(xing)(xing)功能(neng)(neng)是(shi)(shi)其本(ben)質屬(shu)性(xing)(xing)；就輕(qing)便電動(dong)摩托車(che)來(lai)(lai)說，純(chun)電動(dong)功能(neng)(neng)是(shi)(shi)其本(ben)質屬(shu)性(xing)(xing)；那么什(shen)么才(cai)是(shi)(shi)電動(dong)自行(xing)(xing)車(che)的本(ben)質屬(shu)性(xing)(xing)呢，融合純(chun)人力(li)踩踏功能(neng)(neng)和純(chun)電動(dong)功能(neng)(neng)的助力(li)功能(neng)(neng)是(shi)(shi)電動(dong)自行(xing)(xing)車(che)的本(ben)質屬(shu)性(xing)(xing)，是(shi)(shi)電動(dong)自行(xing)(xing)車(che)區(qu)別于自行(xing)(xing)車(che)和輕(qing)便摩托車(che)的唯一標志。搞清了這(zhe)個問題，才(cai)不(bu)致于生(sheng)產(chan)出與自行(xing)(xing)車(che)沒有什(shen)么關(guan)系(xi)，讓交警(jing)分不(bu)出來(lai)(lai)是(shi)(shi)電動(dong)自行(xing)(xing)車(che)還是(shi)(shi)摩托車(che)的畸形產(chan)品來(lai)(lai)。