雖然早在 1999年《 GB17761-1999電(dian)(dian)動自行(xing)(xing)車(che)(che)通用技術條件》對(dui)電(dian)(dian)動自行(xing)(xing)車(che)(che)有過(guo)(guo)名確的(de)定義，也有著詳盡的(de)規范，然而(er)實際的(de)現狀是絕大(da)多數電(dian)(dian)動自行(xing)(xing)車(che)(che)突破了這個(ge)限制(zhi)，經過(guo)(guo) 10年演(yan)(yan)變成了與這個(ge)國家標準(zhun)幾乎沒有什么關系的(de)另外(wai)一(yi)種產品。在這里，單從技術的(de)角(jiao)度(du)，笨重的(de)鉛酸電(dian)(dian)池，電(dian)(dian)動自行(xing)(xing)車(che)(che)和電(dian)(dian)動摩托車(che)(che)概(gai)念(nian)的(de)混(hun)淆(xiao)是這個(ge)演(yan)(yan)變的(de)最(zui)主(zhu)要的(de)罪(zui)魁禍首。然而(er)在這個(ge)演(yan)(yan)變的(de)另外(wai)一(yi)個(ge)結果是，由于鉛酸電(dian)(dian)池較短的(de)壽(shou)命(ming)，由于電(dian)(dian)動自行(xing)(xing)車(che)(che)的(de)粗制(zhi)濫(lan)造，電(dian)(dian)動自行(xing)(xing)車(che)(che)成為一(yi)個(ge)沒有任何安全(quan)，劣質短命(ming)產品代名詞(ci)。

    就(jiu)在(zai)這個時(shi)(shi)候(hou)(hou)，用于電(dian)(dian)(dian)動(dong)(dong)自(zi)行(xing)車(che)的(de)鋰電(dian)(dian)(dian)池日漸成熟了(le)，似乎遲(chi)到了(le) 10年。這個時(shi)(shi)候(hou)(hou)，普通(tong)的(de)消費(fei)者(zhe)已經(jing)很難分清合格(ge)電(dian)(dian)(dian)動(dong)(dong)自(zi)行(xing)車(che)和(he)電(dian)(dian)(dian)動(dong)(dong)摩(mo)托車(che)(含電(dian)(dian)(dian)動(dong)(dong)摩(mo)托車(che)和(he)輕便電(dian)(dian)(dian)動(dong)(dong)摩(mo)托車(che))的(de)區別了(le)；這個時(shi)(shi)候(hou)(hou)，超標(biao)的(de)電(dian)(dian)(dian)動(dong)(dong)自(zi)行(xing)車(che)已經(jing)在(zai)中(zhong)國(guo)市場飽和(he)了(le)；這個時(shi)(shi)候(hou)(hou)，超標(biao)的(de)電(dian)(dian)(dian)動(dong)(dong)自(zi)行(xing)車(che)消費(fei)者(zhe)和(he)超標(biao)電(dian)(dian)(dian)動(dong)(dong)自(zi)行(xing)車(che)生(sheng)產企業(ye)已經(jing)敢于和(he)制定(ding)電(dian)(dian)(dian)動(dong)(dong)自(zi)行(xing)車(che)標(biao)準的(de)國(guo)家標(biao)準化委員會叫(jiao)板了(le)。

    然(ran)(ran)而，然(ran)(ran)而鋰電(dian)池必(bi)然(ran)(ran)和電(dian)動自(zi)(zi)行(xing)車有一個完(wan)美的(de)結合，這是由(you)于鋰電(dian)池獨有的(de)輕(qing)便和超長壽命的(de)本質屬性(xing)決定的(de)，鋰電(dian)池必(bi)然(ran)(ran)為電(dian)動自(zi)(zi)行(xing)車插上(shang)騰飛的(de)翅膀(bang)。

    在電(dian)(dian)(dian)動自行(xing)(xing)車行(xing)(xing)業(ye)已經(jing)迎來第二(er)次(ci)生命(ming)的今天，為了(le)能讓電(dian)(dian)(dian)動自行(xing)(xing)車行(xing)(xing)業(ye)有一個(ge)(ge)健康的的發展，我(wo)們有責任來思考和回答(da)一些最基礎問題。當然這(zhe)些問題都將圍繞著(zhu)電(dian)(dian)(dian)動自行(xing)(xing)車的設計這(zhe)個(ge)(ge)載體展開。 

    談到電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)車(che)(che)的(de)(de)(de)(de)設(she)計(ji)(ji)，我們首先要(yao)搞(gao)清一(yi)(yi)些基本的(de)(de)(de)(de)問(wen)題。什(shen)么(me)是(shi)(shi)(shi)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)？電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的(de)(de)(de)(de)工(gong)業基礎是(shi)(shi)(shi)什(shen)么(me)？什(shen)么(me)是(shi)(shi)(shi)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的(de)(de)(de)(de)靈魂(hun)？電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)有(you)三(san)種騎行(xing)(xing)(xing)(xing)狀(zhuang)態，即純(chun)人力騎行(xing)(xing)(xing)(xing)，純(chun)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)騎行(xing)(xing)(xing)(xing)，電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)力和人力騎行(xing)(xing)(xing)(xing)混合(he)。三(san)者的(de)(de)(de)(de)關(guan)系(xi)(xi)是(shi)(shi)(shi)什(shen)么(me)，電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)力和人力騎行(xing)(xing)(xing)(xing)混合(he)是(shi)(shi)(shi)一(yi)(yi)種什(shen)么(me)樣(yang)的(de)(de)(de)(de)混合(he)？什(shen)么(me)是(shi)(shi)(shi)設(she)計(ji)(ji)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的(de)(de)(de)(de)第一(yi)(yi)要(yao)素(su)？電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的(de)(de)(de)(de)設(she)計(ji)(ji)要(yao)求有(you)：安全(quan)，時尚(shang)美觀，舒適(shi)便(bian)(bian)捷，便(bian)(bian)于(yu)規模化(hua)生產，長期穩定(ding)性，維修(xiu)便(bian)(bian)利等，在(zai)這些因(yin)素(su)中(zhong)誰是(shi)(shi)(shi)最重要(yao)的(de)(de)(de)(de)，誰是(shi)(shi)(shi)次要(yao)的(de)(de)(de)(de)，誰是(shi)(shi)(shi)應當兼顧考慮的(de)(de)(de)(de)；它(ta)們之間又是(shi)(shi)(shi)一(yi)(yi)種什(shen)么(me)樣(yang)的(de)(de)(de)(de)關(guan)系(xi)(xi)？電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)和電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)摩托及自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的(de)(de)(de)(de)本質區別是(shi)(shi)(shi)什(shen)么(me)？電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)車(che)(che)的(de)(de)(de)(de)理想模型是(shi)(shi)(shi)什(shen)么(me)樣(yang)的(de)(de)(de)(de)？

第一，什么事電動自行車？

     國標委員會(hui)《 GB17761-1999電動(dong)自(zi)行(xing)(xing)車(che)通用技術條件(jian)》的(de)定義是：電動(dong)自(zi)行(xing)(xing)車(che)是以(yi)蓄(xu)電池(chi)作為輔助能(neng)源，具(ju)有(you)兩個車(che)輪，能(neng)夠(gou)實現人力騎行(xing)(xing)，電動(dong)或電動(dong)助力騎行(xing)(xing)的(de)特種自(zi)行(xing)(xing)車(che)。

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、能夠實現電動力或助力騎(qi)行。

     這個(ge)解(jie)釋很好的(de)回答(da)(da)了電(dian)(dian)動(dong)自(zi)(zi)行(xing)(xing)車(che)(che)是以蓄(xu)電(dian)(dian)池為輔助能源，電(dian)(dian)動(dong)自(zi)(zi)行(xing)(xing)車(che)(che)是自(zi)(zi)行(xing)(xing)車(che)(che)的(de)一(yi)種(zhong)，屬于特(te)種(zhong)自(zi)(zi)行(xing)(xing)車(che)(che)。但是沒(mei)有(you)說(shuo)明人力騎(qi)(qi)行(xing)(xing)，電(dian)(dian)動(dong)或助力騎(qi)(qi)行(xing)(xing)三者的(de)辯證關(guan)系(xi)，沒(mei)有(you)很好的(de)回答(da)(da)電(dian)(dian)動(dong)自(zi)(zi)行(xing)(xing)車(che)(che)與自(zi)(zi)行(xing)(xing)車(che)(che)和輕便(bian)電(dian)(dian)動(dong)摩托的(de)區別的(de)本質(zhi)屬性(xing)是什么。我覺得這樣解(jie)釋更能說(shuo)明電(dian)(dian)動(dong)自(zi)(zi)行(xing)(xing)車(che)(che)的(de)本質(zhi)屬性(xing)即：電(dian)(dian)動(dong)自(zi)(zi)行(xing)(xing)是一(yi)種(zhong)在自(zi)(zi)行(xing)(xing)車(che)(che)的(de)基礎上融入電(dian)(dian)動(dong)功(gong)能，并且能夠實現人力和電(dian)(dian)動(dong)力有(you)機協同工(gong)作的(de)一(yi)種(zhong)輕便(bian)特(te)種(zhong)自(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(dian)(dian)動(dong)自行(xing)車(che)(che)是(shi)自行(xing)車(che)(che)的(de)一種(zhong)(zhong)，是(shi)一種(zhong)(zhong)特殊的(de)自行(xing)車(che)(che)，那(nei)么電(dian)(dian)動(dong)自行(xing)車(che)(che)的(de)工(gong)業(ye)基礎(chu)就是(shi)自行(xing)車(che)(che)。電(dian)(dian)動(dong)自行(xing)車(che)(che)其他(ta)部件的(de)和系統的(de)設計(ji)都(dou)應(ying)該圍繞(rao)這(zhe)個(ge)工(gong)業(ye)基礎(chu)展(zhan)開。偏離了這(zhe)個(ge)基礎(chu)，就會搞出一些四不象的(de)怪胎。像摩托一樣超標電(dian)(dian)動(dong)車(che)(che)就是(shi)一個(ge)典(dian)型(xing)的(de)例子。

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

     三者的(de)(de)關系是(shi)(shi)(shi)什么(me)，電(dian)(dian)(dian)(dian)動力(li)和人力(li)騎(qi)行(xing)(xing)(xing)(xing)混(hun)合是(shi)(shi)(shi)一(yi)種什么(me)樣(yang)的(de)(de)混(hun)合？純人力(li)踩踏(ta)騎(qi)行(xing)(xing)(xing)(xing)是(shi)(shi)(shi)基礎，電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)不可避(bi)免的(de)(de)會出現(xian)路上(shang)電(dian)(dian)(dian)(dian)量(liang)用盡的(de)(de)時候，如果(guo)沒(mei)有(you)人力(li)騎(qi)行(xing)(xing)(xing)(xing)功(gong)(gong)能(neng)(neng)拋(pao)錨在(zai)路上(shang)是(shi)(shi)(shi)一(yi)件非常討厭(yan)的(de)(de)事情，同時沒(mei)有(you)騎(qi)行(xing)(xing)(xing)(xing)功(gong)(gong)能(neng)(neng)電(dian)(dian)(dian)(dian)動兩輪車(che)也(ye)不能(neng)(neng)成為電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)。但是(shi)(shi)(shi)現(xian)在(zai)的(de)(de)問題是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)自(zi)從有(you)了(le)電(dian)(dian)(dian)(dian)動功(gong)(gong)能(neng)(neng)之后(hou)，騎(qi)行(xing)(xing)(xing)(xing)功(gong)(gong)能(neng)(neng)被忽(hu)視，不少電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)純人力(li)騎(qi)行(xing)(xing)(xing)(xing)費(fei)力(li)。實際上(shang)，如果(guo)電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)的(de)(de)腳(jiao)踏(ta)功(gong)(gong)能(neng)(neng)越(yue)費(fei)力(li)，則(ze)說明電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)的(de)(de)阻(zu)力(li)越(yue)大，電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)的(de)(de)阻(zu)力(li)越(yue)大，則(ze)同樣(yang)的(de)(de)電(dian)(dian)(dian)(dian)池容量(liang)電(dian)(dian)(dian)(dian)動自(zi)行(xing)(xing)(xing)(xing)車(che)的(de)(de)續行(xing)(xing)(xing)(xing)距(ju)離越(yue)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(zheng)車結構，降低空氣的動態(tai)阻力； 4降低整(zheng)車重量。

    只有降低了電(dian)動(dong)自行(xing)車的阻力，電(dian)動(dong)自行(xing)車才(cai)有可能(neng)有良好的騎行(xing)能(neng)力，才(cai)能(neng)為電(dian)動(dong)自行(xing)車的純電(dian)動(dong)及電(dian)動(dong)助力騎行(xing)打下良好的基礎。

    純(chun)電(dian)動騎(qi)(qi)行(xing)，毫無疑問純(chun)電(dian)動騎(qi)(qi)行(xing)是不用消耗騎(qi)(qi)行(xing)者(zhe)的體力的，當然在三中(zhong)騎(qi)(qi)行(xing)狀(zhuang)態中(zhong)也(ye)是最省力的，同時也(ye)是最耗電(dian)的一種騎(qi)(qi)行(xing)方式(shi)。但是長期純(chun)電(dian)動騎(qi)(qi)行(xing)會導致類似“摩托車(che)綜合癥”影響(xiang)健康。

    助(zhu)力(li)騎行(xing)，目(mu)前的電動自行(xing)車(che)助(zhu)力(li)方式有真假兩種(zhong)，使用(yong)力(li)矩傳感(gan)器(qi)智能助(zhu)力(li)騎行(xing)，使用(yong)速度(du)傳感(gan)器(qi)助(zhu)力(li)騎行(xing)。下面就力(li)矩傳感(gan)器(qi)和速度(du)傳感(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(an)全(quan)，杜絕推行輪(lun)盤(pan)和飛輪(lun)聯(lian)動(dong)導(dao)致的飛車(che)。

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

缺(que)點：1.完全不能實現人(ren)力(li)(li)和電(dian)動力(li)(li)的(de)協同工作；2.騎行時掌控(kong)困(kun)難，有危(wei)險性(xing)； 3.推行時輪(lun)盤和飛輪(lun)聯動會導(dao)致飛車危(wei)險。

    
   鑒于速度傳(chuan)(chuan)感(gan)器(qi)的騎行時和推行時的嚴(yan)重安全隱患，完全不能實現人力(li)和電動力(li)的協同(tong)工(gong)作，根本就不是(shi)什么助(zhu)力(li)傳(chuan)(chuan)感(gan)器(qi)。力(li)矩助(zhu)力(li)傳(chuan)(chuan)感(gan)器(qi)則在安全等(deng) 5個方面有著(zhu)明顯的優勢則是(shi)真正的助(zhu)力(li)傳(chuan)(chuan)感(gan)器(qi)。

      從電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)的(de)(de)三種騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)狀(zhuang)態不難看出，助(zhu)力(li)(li)騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)兼(jian)顧了純人力(li)(li)踩(cai)踏騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)和純電(dian)(dian)動(dong)(dong)騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)的(de)(de)優點。能(neng)(neng)夠實現人力(li)(li)和電(dian)(dian)動(dong)(dong)力(li)(li)力(li)(li)的(de)(de)協同工作；.騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)輕松，有益健康，變騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)為樂趣；有利于挖掘(jue)人力(li)(li)節(jie)約(yue)電(dian)(dian)力(li)(li)，增加續行(xing)(xing)(xing)(xing)(xing)里程。就自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)來說(shuo)純人力(li)(li)踩(cai)踏騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)功(gong)(gong)(gong)能(neng)(neng)是(shi)(shi)(shi)其(qi)本(ben)質屬(shu)性(xing)(xing)；就輕便(bian)電(dian)(dian)動(dong)(dong)摩托車(che)來說(shuo)，純電(dian)(dian)動(dong)(dong)功(gong)(gong)(gong)能(neng)(neng)是(shi)(shi)(shi)其(qi)本(ben)質屬(shu)性(xing)(xing)；那么什(shen)么才是(shi)(shi)(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)的(de)(de)本(ben)質屬(shu)性(xing)(xing)呢，能(neng)(neng)夠實現人力(li)(li)和電(dian)(dian)動(dong)(dong)力(li)(li)協同工作的(de)(de)助(zhu)力(li)(li)騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)功(gong)(gong)(gong)能(neng)(neng)就是(shi)(shi)(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)的(de)(de)本(ben)質屬(shu)性(xing)(xing)。助(zhu)力(li)(li)騎(qi)(qi)行(xing)(xing)(xing)(xing)(xing)是(shi)(shi)(shi)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)向電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)這一(yi)更高層次產品演化(hua)的(de)(de)區別和標志，是(shi)(shi)(shi)電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)的(de)(de)靈魂。那種在電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)上(shang)把人力(li)(li)腳踏功(gong)(gong)(gong)能(neng)(neng)和純電(dian)(dian)動(dong)(dong)功(gong)(gong)(gong)能(neng)(neng)相互孤立的(de)(de)設計方案只能(neng)(neng)制造出沒有靈魂的(de)(de)電(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)(xing)(xing)(xing)車(che)軀殼。

    什么(me)(me)是(shi)設計電動(dong)自行車(che)的(de)第一要(yao)素？電動(dong)自行車(che)的(de)設計要(yao)求有：安全(quan)，便(bian)于規模化生產，時尚美(mei)觀，舒(shu)適便(bian)捷，穩定(ding)性(xing)，維修便(bian)利等，在這些因(yin)素中誰是(shi)最重要(yao)的(de)，誰是(shi)次要(yao)的(de)，誰是(shi)應當兼顧考慮的(de)；它們之間又是(shi)一種(zhong)什么(me)(me)樣的(de)關系？

    電(dian)(dian)動(dong)(dong)(dong)自行車作為(wei)一種交通工具(ju)來說(shuo)，保(bao)護(hu)消費者在使(shi)用過程(cheng)中的(de)(de)人身和財產(chan)安全無疑是(shi)最(zui)重(zhong)要的(de)(de)。然而(er)目前的(de)(de)市場上(shang)的(de)(de)超過 70%電(dian)(dian)動(dong)(dong)(dong)自行車由于使(shi)用了速(su)度傳感器和自動(dong)(dong)(dong)定速(su)功(gong)能（美其名(ming)曰自動(dong)(dong)(dong)巡(xun)航）有嚴重(zhong)安全隱患的(de)(de)飛車，這實在電(dian)(dian)動(dong)(dong)(dong)自行車行業的(de)(de)最(zui)大悲哀！在電(dian)(dian)動(dong)(dong)(dong)自行車設計要素的(de)(de)排列關系(xi)應(ying)當是(shi)：安全第一；穩定性其次；舒適便(bian)捷(jie)再次；便(bian)于規模化生(sheng)產(chan)和維修便(bian)利是(shi)一對對稱的(de)(de)問(wen)題(ti)；在以上(shang)的(de)(de)基礎(chu)上(shang)才有資格談時尚美觀。

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(jiu)自(zi)(zi)行(xing)車(che)(che)來(lai)說(shuo)純(chun)人力(li)踩踏騎行(xing)功(gong)(gong)(gong)能(neng)是其本(ben)質(zhi)屬(shu)(shu)性(xing)；就(jiu)輕便電(dian)動摩(mo)托(tuo)(tuo)(tuo)車(che)(che)來(lai)說(shuo)，純(chun)電(dian)動功(gong)(gong)(gong)能(neng)是其本(ben)質(zhi)屬(shu)(shu)性(xing)；那么(me)什么(me)才(cai)是電(dian)動自(zi)(zi)行(xing)車(che)(che)的本(ben)質(zhi)屬(shu)(shu)性(xing)呢(ni)，融(rong)合純(chun)人力(li)踩踏功(gong)(gong)(gong)能(neng)和(he)純(chun)電(dian)動功(gong)(gong)(gong)能(neng)的助(zhu)力(li)功(gong)(gong)(gong)能(neng)是電(dian)動自(zi)(zi)行(xing)車(che)(che)的本(ben)質(zhi)屬(shu)(shu)性(xing)，是電(dian)動自(zi)(zi)行(xing)車(che)(che)區(qu)別于自(zi)(zi)行(xing)車(che)(che)和(he)輕便摩(mo)托(tuo)(tuo)(tuo)車(che)(che)的唯(wei)一標志。搞清了這個問題，才(cai)不致(zhi)于生產出(chu)與自(zi)(zi)行(xing)車(che)(che)沒有(you)什么(me)關(guan)系，讓交警分不出(chu)來(lai)是電(dian)動自(zi)(zi)行(xing)車(che)(che)還是摩(mo)托(tuo)(tuo)(tuo)車(che)(che)的畸形產品(pin)來(lai)。