雖然早在(zai)(zai) 1999年《 GB17761-1999電(dian)(dian)(dian)(dian)動(dong)自(zi)行車(che)(che)(che)通用技術(shu)條件(jian)》對電(dian)(dian)(dian)(dian)動(dong)自(zi)行車(che)(che)(che)有過(guo)名(ming)確的(de)(de)(de)定義，也有著詳(xiang)盡的(de)(de)(de)規范(fan)，然而實際的(de)(de)(de)現狀是(shi)(shi)絕大(da)多數電(dian)(dian)(dian)(dian)動(dong)自(zi)行車(che)(che)(che)突破(po)了(le)這個(ge)(ge)限制，經過(guo) 10年演(yan)變成(cheng)了(le)與這個(ge)(ge)國家標準(zhun)幾(ji)乎沒(mei)(mei)有什么關系(xi)的(de)(de)(de)另(ling)外(wai)一種(zhong)產品。在(zai)(zai)這里，單從技術(shu)的(de)(de)(de)角度，笨重的(de)(de)(de)鉛酸電(dian)(dian)(dian)(dian)池，電(dian)(dian)(dian)(dian)動(dong)自(zi)行車(che)(che)(che)和電(dian)(dian)(dian)(dian)動(dong)摩托車(che)(che)(che)概念的(de)(de)(de)混(hun)淆(xiao)是(shi)(shi)這個(ge)(ge)演(yan)變的(de)(de)(de)最主要的(de)(de)(de)罪魁禍首。然而在(zai)(zai)這個(ge)(ge)演(yan)變的(de)(de)(de)另(ling)外(wai)一個(ge)(ge)結果是(shi)(shi)，由于鉛酸電(dian)(dian)(dian)(dian)池較短的(de)(de)(de)壽命(ming)，由于電(dian)(dian)(dian)(dian)動(dong)自(zi)行車(che)(che)(che)的(de)(de)(de)粗制濫造，電(dian)(dian)(dian)(dian)動(dong)自(zi)行車(che)(che)(che)成(cheng)為(wei)一個(ge)(ge)沒(mei)(mei)有任何安全(quan)，劣質短命(ming)產品代(dai)名(ming)詞(ci)。

    就在這(zhe)個(ge)時(shi)候(hou)(hou)，用于電動自(zi)行車(che)(che)(che)的鋰電池(chi)日漸成熟了(le)(le)(le)，似乎遲(chi)到了(le)(le)(le) 10年。這(zhe)個(ge)時(shi)候(hou)(hou)，普通的消費者已(yi)(yi)經很難分清合格電動自(zi)行車(che)(che)(che)和(he)電動摩托(tuo)車(che)(che)(che)(含電動摩托(tuo)車(che)(che)(che)和(he)輕(qing)便電動摩托(tuo)車(che)(che)(che))的區別了(le)(le)(le)；這(zhe)個(ge)時(shi)候(hou)(hou)，超標(biao)(biao)的電動自(zi)行車(che)(che)(che)已(yi)(yi)經在中(zhong)國(guo)市場飽和(he)了(le)(le)(le)；這(zhe)個(ge)時(shi)候(hou)(hou)，超標(biao)(biao)的電動自(zi)行車(che)(che)(che)消費者和(he)超標(biao)(biao)電動自(zi)行車(che)(che)(che)生產企業已(yi)(yi)經敢(gan)于和(he)制定電動自(zi)行車(che)(che)(che)標(biao)(biao)準的國(guo)家標(biao)(biao)準化委(wei)員會叫板了(le)(le)(le)。

    然而，然而鋰(li)電(dian)池必然和(he)電(dian)動自(zi)行車(che)有一個(ge)完美的結合，這是由于(yu)鋰(li)電(dian)池獨(du)有的輕便(bian)和(he)超長壽命(ming)的本質屬性決定的，鋰(li)電(dian)池必然為(wei)電(dian)動自(zi)行車(che)插(cha)上騰(teng)飛的翅膀。

    在電動自行(xing)(xing)車行(xing)(xing)業已經迎來(lai)第(di)二次(ci)生命的(de)今天，為了能讓電動自行(xing)(xing)車行(xing)(xing)業有一(yi)個(ge)健康的(de)的(de)發(fa)展，我們有責(ze)任來(lai)思考和(he)回(hui)答一(yi)些(xie)最基(ji)礎問(wen)(wen)題。當然這些(xie)問(wen)(wen)題都將(jiang)圍繞著電動自行(xing)(xing)車的(de)設(she)計(ji)這個(ge)載體(ti)展開。 

    談到(dao)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)車(che)(che)(che)的(de)(de)(de)設(she)計(ji)，我們首先(xian)要(yao)搞清一些基(ji)本的(de)(de)(de)問題。什(shen)(shen)么是(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)工(gong)業基(ji)礎是(shi)什(shen)(shen)么？什(shen)(shen)么是(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)靈魂？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)有三種(zhong)騎(qi)(qi)行(xing)(xing)狀態，即純人(ren)力(li)騎(qi)(qi)行(xing)(xing)，純電(dian)(dian)動(dong)(dong)騎(qi)(qi)行(xing)(xing)，電(dian)(dian)動(dong)(dong)力(li)和人(ren)力(li)騎(qi)(qi)行(xing)(xing)混(hun)合(he)。三者的(de)(de)(de)關系(xi)是(shi)什(shen)(shen)么，電(dian)(dian)動(dong)(dong)力(li)和人(ren)力(li)騎(qi)(qi)行(xing)(xing)混(hun)合(he)是(shi)一種(zhong)什(shen)(shen)么樣(yang)(yang)的(de)(de)(de)混(hun)合(he)？什(shen)(shen)么是(shi)設(she)計(ji)電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)第一要(yao)素？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)設(she)計(ji)要(yao)求有：安全，時尚美觀，舒適便(bian)捷，便(bian)于規模化生產，長期穩定(ding)性，維修便(bian)利等，在這些因素中誰是(shi)最重(zhong)要(yao)的(de)(de)(de)，誰是(shi)次(ci)要(yao)的(de)(de)(de)，誰是(shi)應當兼顧考(kao)慮的(de)(de)(de)；它們之間又是(shi)一種(zhong)什(shen)(shen)么樣(yang)(yang)的(de)(de)(de)關系(xi)？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)和電(dian)(dian)動(dong)(dong)摩托及自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)本質區(qu)別是(shi)什(shen)(shen)么？電(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)理想模型是(shi)什(shen)(shen)么樣(yang)(yang)的(de)(de)(de)？

第一，什么事(shi)電動(dong)自行車？

     國標委員會(hui)《 GB17761-1999電(dian)動(dong)自(zi)行(xing)車通用技術條件》的定義是：電(dian)動(dong)自(zi)行(xing)車是以蓄電(dian)池作為輔助能源，具(ju)有(you)兩個車輪(lun)，能夠(gou)實現人力騎行(xing)，電(dian)動(dong)或電(dian)動(dong)助力騎行(xing)的特種自(zi)行(xing)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(dian)動力或助力騎(qi)行(xing)。

     這個(ge)解釋很好(hao)的(de)(de)回答(da)了電(dian)(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)是以蓄電(dian)(dian)(dian)(dian)池為輔助能(neng)(neng)源，電(dian)(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)是自(zi)(zi)(zi)行(xing)(xing)車(che)的(de)(de)一(yi)種(zhong)，屬(shu)于特種(zhong)自(zi)(zi)(zi)行(xing)(xing)車(che)。但是沒有(you)說明人力(li)(li)騎行(xing)(xing)，電(dian)(dian)(dian)(dian)動(dong)(dong)或助力(li)(li)騎行(xing)(xing)三(san)者的(de)(de)辯證關(guan)系，沒有(you)很好(hao)的(de)(de)回答(da)電(dian)(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)與自(zi)(zi)(zi)行(xing)(xing)車(che)和輕便(bian)電(dian)(dian)(dian)(dian)動(dong)(dong)摩托的(de)(de)區別的(de)(de)本(ben)質屬(shu)性(xing)是什么。我覺得這樣解釋更能(neng)(neng)說明電(dian)(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)車(che)的(de)(de)本(ben)質屬(shu)性(xing)即：電(dian)(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)(zi)行(xing)(xing)是一(yi)種(zhong)在(zai)自(zi)(zi)(zi)行(xing)(xing)車(che)的(de)(de)基礎上(shang)融入(ru)電(dian)(dian)(dian)(dian)動(dong)(dong)功能(neng)(neng)，并且能(neng)(neng)夠(gou)實現人力(li)(li)和電(dian)(dian)(dian)(dian)動(dong)(dong)力(li)(li)有(you)機協(xie)同工作(zuo)的(de)(de)一(yi)種(zhong)輕便(bian)特種(zhong)自(zi)(zi)(zi)行(xing)(xing)車(che)。

第二，電動自行車的工業基礎是什么？
    既然(ran)電動自(zi)行(xing)(xing)車是(shi)自(zi)行(xing)(xing)車的一種(zhong)，是(shi)一種(zhong)特(te)殊(shu)的自(zi)行(xing)(xing)車，那么電動自(zi)行(xing)(xing)車的工(gong)業基(ji)(ji)礎就(jiu)(jiu)是(shi)自(zi)行(xing)(xing)車。電動自(zi)行(xing)(xing)車其他(ta)部件的和系統的設計都應該圍繞這個(ge)(ge)工(gong)業基(ji)(ji)礎展開。偏離了這個(ge)(ge)基(ji)(ji)礎，就(jiu)(jiu)會搞(gao)出(chu)一些(xie)四不象(xiang)的怪胎。像摩托一樣超標(biao)電動車就(jiu)(jiu)是(shi)一個(ge)(ge)典型的例子(zi)。

第三，什么是電動自行車的靈魂？
     電動(dong)自行(xing)車有三種騎行(xing)狀態(tai)，即純人力騎行(xing)，純電動(dong)騎行(xing)，電動(dong)助力。

     三者的關系是(shi)什么(me)，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)力(li)和人(ren)力(li)騎行(xing)(xing)(xing)(xing)(xing)(xing)混合是(shi)一種什么(me)樣(yang)的混合？純人(ren)力(li)踩踏騎行(xing)(xing)(xing)(xing)(xing)(xing)是(shi)基礎，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車不可(ke)避免的會出(chu)現(xian)路(lu)上電(dian)(dian)(dian)(dian)量(liang)用盡的時候，如果沒(mei)有(you)人(ren)力(li)騎行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)拋錨在(zai)路(lu)上是(shi)一件非常討(tao)厭的事情，同時沒(mei)有(you)騎行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)兩輪車也不能(neng)成為電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車。但是(shi)現(xian)在(zai)的問(wen)題(ti)是(shi)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車自(zi)(zi)(zi)(zi)(zi)從有(you)了電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)功(gong)能(neng)之后，騎行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)被忽(hu)視，不少電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車純人(ren)力(li)騎行(xing)(xing)(xing)(xing)(xing)(xing)費(fei)力(li)。實際上，如果電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車的腳(jiao)踏功(gong)能(neng)越費(fei)力(li)，則說明(ming)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車的阻(zu)力(li)越大，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車的阻(zu)力(li)越大，則同樣(yang)的電(dian)(dian)(dian)(dian)池容量(liang)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)(zi)(zi)(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車的續(xu)行(xing)(xing)(xing)(xing)(xing)(xing)距離越近(jin)。

     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(che)結構，降低空氣的動態阻力； 4降低整車(che)重(zhong)量。

    只有(you)降低(di)了電(dian)動(dong)(dong)自(zi)行(xing)車(che)的(de)阻(zu)力(li)，電(dian)動(dong)(dong)自(zi)行(xing)車(che)才有(you)可能(neng)(neng)有(you)良好的(de)騎(qi)行(xing)能(neng)(neng)力(li)，才能(neng)(neng)為(wei)電(dian)動(dong)(dong)自(zi)行(xing)車(che)的(de)純電(dian)動(dong)(dong)及電(dian)動(dong)(dong)助力(li)騎(qi)行(xing)打下良好的(de)基礎。

    純(chun)(chun)電(dian)動騎(qi)行(xing)(xing)，毫(hao)無疑問(wen)純(chun)(chun)電(dian)動騎(qi)行(xing)(xing)是不用消耗騎(qi)行(xing)(xing)者(zhe)的體(ti)力(li)的，當(dang)然在三中騎(qi)行(xing)(xing)狀態中也是最(zui)省力(li)的，同時也是最(zui)耗電(dian)的一種騎(qi)行(xing)(xing)方式。但是長期純(chun)(chun)電(dian)動騎(qi)行(xing)(xing)會導致類似“摩(mo)托車綜合癥”影響健康。

    助力(li)騎(qi)行(xing)，目前的電(dian)動(dong)自行(xing)車助力(li)方式有真(zhen)假兩種，使用(yong)力(li)矩傳(chuan)(chuan)感器智(zhi)能助力(li)騎(qi)行(xing)，使用(yong)速(su)度傳(chuan)(chuan)感器助力(li)騎(qi)行(xing)。下面(mian)就力(li)矩傳(chuan)(chuan)感器和(he)速(su)度傳(chuan)(chuan)感做(zuo)一下對(dui)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，杜(du)絕推行輪(lun)盤和飛(fei)輪(lun)聯動導(dao)致的飛(fei)車。

優點： 
成本較低。
缺點：  
1.成本較高； 
2.技術成熟度較低。

缺點：1.完全不能實現人力和(he)電動力的(de)協(xie)同(tong)工作；2.騎行時掌控困難(nan)，有(you)危險性； 3.推行時輪盤和(he)飛(fei)輪聯動會導致(zhi)飛(fei)車危險。

    
   鑒于速度傳感器(qi)的騎行時和推行時的嚴重安全(quan)隱患(huan)，完(wan)全(quan)不(bu)(bu)能實現人力(li)和電動(dong)力(li)的協同工作，根本就不(bu)(bu)是(shi)什(shen)么(me)助(zhu)力(li)傳感器(qi)。力(li)矩助(zhu)力(li)傳感器(qi)則(ze)在安全(quan)等 5個方面有著明顯的優勢則(ze)是(shi)真正(zheng)的助(zhu)力(li)傳感器(qi)。

      從電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)的(de)(de)三(san)種騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)狀(zhuang)態(tai)不(bu)難看出，助(zhu)(zhu)力(li)(li)(li)(li)騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)兼顧了純人(ren)力(li)(li)(li)(li)踩踏騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)和(he)純電(dian)動(dong)騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)優點。能(neng)(neng)(neng)夠實現(xian)人(ren)力(li)(li)(li)(li)和(he)電(dian)動(dong)力(li)(li)(li)(li)力(li)(li)(li)(li)的(de)(de)協(xie)同工(gong)作(zuo)(zuo)；.騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)輕松，有益(yi)健康，變騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)為樂趣；有利于挖掘(jue)人(ren)力(li)(li)(li)(li)節約電(dian)力(li)(li)(li)(li)，增(zeng)加(jia)續行(xing)(xing)(xing)(xing)(xing)(xing)里程。就(jiu)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)來說純人(ren)力(li)(li)(li)(li)踩踏騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)(gong)(gong)能(neng)(neng)(neng)是(shi)其(qi)本(ben)質屬性(xing)；就(jiu)輕便電(dian)動(dong)摩托車(che)(che)(che)(che)來說，純電(dian)動(dong)功(gong)(gong)(gong)能(neng)(neng)(neng)是(shi)其(qi)本(ben)質屬性(xing)；那么(me)(me)什么(me)(me)才是(shi)電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)的(de)(de)本(ben)質屬性(xing)呢，能(neng)(neng)(neng)夠實現(xian)人(ren)力(li)(li)(li)(li)和(he)電(dian)動(dong)力(li)(li)(li)(li)協(xie)同工(gong)作(zuo)(zuo)的(de)(de)助(zhu)(zhu)力(li)(li)(li)(li)騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)(gong)(gong)能(neng)(neng)(neng)就(jiu)是(shi)電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)的(de)(de)本(ben)質屬性(xing)。助(zhu)(zhu)力(li)(li)(li)(li)騎(qi)行(xing)(xing)(xing)(xing)(xing)(xing)是(shi)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)向(xiang)電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)這一更(geng)高層次產品演化的(de)(de)區別和(he)標志，是(shi)電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)的(de)(de)靈(ling)魂。那種在電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)上把人(ren)力(li)(li)(li)(li)腳踏功(gong)(gong)(gong)能(neng)(neng)(neng)和(he)純電(dian)動(dong)功(gong)(gong)(gong)能(neng)(neng)(neng)相互孤立的(de)(de)設計(ji)方(fang)案只能(neng)(neng)(neng)制(zhi)造(zao)出沒有靈(ling)魂的(de)(de)電(dian)動(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)(che)(che)(che)軀殼。

    什么是設(she)計電動(dong)自(zi)行車的(de)第一要素？電動(dong)自(zi)行車的(de)設(she)計要求(qiu)有：安全，便于規模(mo)化生產，時尚美觀(guan)，舒適便捷，穩定性，維(wei)修(xiu)便利(li)等(deng)，在(zai)這些(xie)因素中誰是最重要的(de)，誰是次(ci)要的(de)，誰是應(ying)當(dang)兼(jian)顧考慮的(de)；它們(men)之間又是一種什么樣的(de)關系？

    電(dian)(dian)(dian)動(dong)自(zi)行(xing)(xing)車作為一種交通工具來(lai)說(shuo)，保護消費者(zhe)在(zai)使用過程中的(de)人身和財產安(an)全(quan)無疑是最重要(yao)的(de)。然而目前的(de)市(shi)場上的(de)超過 70%電(dian)(dian)(dian)動(dong)自(zi)行(xing)(xing)車由于(yu)使用了速度傳感器和自(zi)動(dong)定速功(gong)能（美(mei)其(qi)名曰自(zi)動(dong)巡航）有嚴重安(an)全(quan)隱患的(de)飛車，這實在(zai)電(dian)(dian)(dian)動(dong)自(zi)行(xing)(xing)車行(xing)(xing)業(ye)的(de)最大(da)悲哀！在(zai)電(dian)(dian)(dian)動(dong)自(zi)行(xing)(xing)車設計要(yao)素的(de)排列(lie)關(guan)系應(ying)當是：安(an)全(quan)第一；穩定性其(qi)次；舒適便捷再次；便于(yu)規(gui)模化(hua)生產和維修便利是一對對稱(cheng)的(de)問題；在(zai)以上的(de)基礎上才有資格談時(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)(lai)說純人(ren)力(li)踩踏(ta)騎行(xing)(xing)功能(neng)(neng)是(shi)其本質屬(shu)(shu)性；就輕便電(dian)動(dong)摩(mo)托(tuo)(tuo)車(che)來(lai)(lai)(lai)說，純電(dian)動(dong)功能(neng)(neng)是(shi)其本質屬(shu)(shu)性；那么什么才是(shi)電(dian)動(dong)自行(xing)(xing)車(che)的本質屬(shu)(shu)性呢(ni)，融合(he)純人(ren)力(li)踩踏(ta)功能(neng)(neng)和(he)純電(dian)動(dong)功能(neng)(neng)的助力(li)功能(neng)(neng)是(shi)電(dian)動(dong)自行(xing)(xing)車(che)的本質屬(shu)(shu)性，是(shi)電(dian)動(dong)自行(xing)(xing)車(che)區別(bie)于自行(xing)(xing)車(che)和(he)輕便摩(mo)托(tuo)(tuo)車(che)的唯一標志。搞(gao)清(qing)了這個問(wen)題，才不(bu)致于生(sheng)產出與自行(xing)(xing)車(che)沒有什么關(guan)系，讓(rang)交警分不(bu)出來(lai)(lai)(lai)是(shi)電(dian)動(dong)自行(xing)(xing)車(che)還是(shi)摩(mo)托(tuo)(tuo)車(che)的畸(ji)形產品來(lai)(lai)(lai)。