雖然早在(zai) 1999年(nian)《 GB17761-1999電(dian)(dian)(dian)動自(zi)(zi)行車(che)通用技術條件》對電(dian)(dian)(dian)動自(zi)(zi)行車(che)有(you)過名(ming)確的(de)定(ding)義，也有(you)著詳盡的(de)規范，然而實際的(de)現狀(zhuang)是(shi)絕(jue)大多數電(dian)(dian)(dian)動自(zi)(zi)行車(che)突破了這個(ge)(ge)限制，經過 10年(nian)演(yan)變(bian)成(cheng)(cheng)了與這個(ge)(ge)國家標準幾(ji)乎沒(mei)有(you)什么關(guan)系的(de)另(ling)外一種(zhong)產(chan)品。在(zai)這里，單(dan)從技術的(de)角度，笨(ben)重的(de)鉛酸電(dian)(dian)(dian)池(chi)，電(dian)(dian)(dian)動自(zi)(zi)行車(che)和(he)電(dian)(dian)(dian)動摩(mo)托(tuo)車(che)概念的(de)混(hun)淆是(shi)這個(ge)(ge)演(yan)變(bian)的(de)最主要的(de)罪魁禍首。然而在(zai)這個(ge)(ge)演(yan)變(bian)的(de)另(ling)外一個(ge)(ge)結果是(shi)，由于鉛酸電(dian)(dian)(dian)池(chi)較(jiao)短(duan)的(de)壽命，由于電(dian)(dian)(dian)動自(zi)(zi)行車(che)的(de)粗制濫(lan)造，電(dian)(dian)(dian)動自(zi)(zi)行車(che)成(cheng)(cheng)為一個(ge)(ge)沒(mei)有(you)任何安全，劣質短(duan)命產(chan)品代名(ming)詞。

    就在這(zhe)個時候(hou)(hou)(hou)，用于(yu)電(dian)動(dong)(dong)自(zi)行(xing)車的(de)鋰電(dian)池(chi)日漸成熟了(le)，似乎(hu)遲到(dao)了(le) 10年。這(zhe)個時候(hou)(hou)(hou)，普通的(de)消費者(zhe)已(yi)經很難分清合(he)格電(dian)動(dong)(dong)自(zi)行(xing)車和電(dian)動(dong)(dong)摩托車(含電(dian)動(dong)(dong)摩托車和輕便電(dian)動(dong)(dong)摩托車)的(de)區(qu)別了(le)；這(zhe)個時候(hou)(hou)(hou)，超標(biao)的(de)電(dian)動(dong)(dong)自(zi)行(xing)車已(yi)經在中國市場(chang)飽和了(le)；這(zhe)個時候(hou)(hou)(hou)，超標(biao)的(de)電(dian)動(dong)(dong)自(zi)行(xing)車消費者(zhe)和超標(biao)電(dian)動(dong)(dong)自(zi)行(xing)車生產(chan)企業已(yi)經敢于(yu)和制定(ding)電(dian)動(dong)(dong)自(zi)行(xing)車標(biao)準的(de)國家標(biao)準化委員會叫板(ban)了(le)。

    然(ran)而，然(ran)而鋰(li)電(dian)(dian)池必(bi)然(ran)和電(dian)(dian)動自(zi)行車有(you)(you)一個完美(mei)的(de)(de)結合(he)，這是由(you)于鋰(li)電(dian)(dian)池獨有(you)(you)的(de)(de)輕便(bian)和超(chao)長壽命的(de)(de)本質(zhi)屬性決定的(de)(de)，鋰(li)電(dian)(dian)池必(bi)然(ran)為電(dian)(dian)動自(zi)行車插(cha)上騰飛(fei)的(de)(de)翅膀。

    在電動(dong)自(zi)行(xing)車(che)(che)行(xing)業(ye)已經迎來第二次生命的今天，為了(le)能讓(rang)電動(dong)自(zi)行(xing)車(che)(che)行(xing)業(ye)有一個(ge)健康(kang)的的發展，我們有責任來思考和回答一些最基礎問題(ti)。當然這些問題(ti)都將圍繞著(zhu)電動(dong)自(zi)行(xing)車(che)(che)的設計這個(ge)載體展開。 

    談到電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)車(che)(che)(che)的(de)(de)(de)設(she)計，我們(men)首先要搞清一(yi)些基(ji)(ji)本的(de)(de)(de)問題。什(shen)(shen)么(me)是(shi)(shi)(shi)電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)？電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)工業基(ji)(ji)礎是(shi)(shi)(shi)什(shen)(shen)么(me)？什(shen)(shen)么(me)是(shi)(shi)(shi)電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)靈魂？電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)有三種騎(qi)行(xing)(xing)狀態，即純人力騎(qi)行(xing)(xing)，純電(dian)(dian)(dian)動(dong)(dong)騎(qi)行(xing)(xing)，電(dian)(dian)(dian)動(dong)(dong)力和人力騎(qi)行(xing)(xing)混合(he)。三者的(de)(de)(de)關系是(shi)(shi)(shi)什(shen)(shen)么(me)，電(dian)(dian)(dian)動(dong)(dong)力和人力騎(qi)行(xing)(xing)混合(he)是(shi)(shi)(shi)一(yi)種什(shen)(shen)么(me)樣的(de)(de)(de)混合(he)？什(shen)(shen)么(me)是(shi)(shi)(shi)設(she)計電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)第一(yi)要素(su)？電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)設(she)計要求有：安全，時尚美觀，舒適便捷，便于規模化生產(chan)，長期穩定性，維修(xiu)便利(li)等(deng)，在這些因(yin)素(su)中誰(shui)是(shi)(shi)(shi)最重要的(de)(de)(de)，誰(shui)是(shi)(shi)(shi)次(ci)要的(de)(de)(de)，誰(shui)是(shi)(shi)(shi)應當兼顧考慮的(de)(de)(de)；它們(men)之間又是(shi)(shi)(shi)一(yi)種什(shen)(shen)么(me)樣的(de)(de)(de)關系？電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)和電(dian)(dian)(dian)動(dong)(dong)摩托(tuo)及(ji)自(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)本質(zhi)區別是(shi)(shi)(shi)什(shen)(shen)么(me)？電(dian)(dian)(dian)動(dong)(dong)自(zi)(zi)行(xing)(xing)車(che)(che)(che)的(de)(de)(de)理想模型是(shi)(shi)(shi)什(shen)(shen)么(me)樣的(de)(de)(de)？

第一，什么(me)事電動自行車？

     國標委員會《 GB17761-1999電(dian)動(dong)(dong)自行(xing)(xing)車通用技術條(tiao)件》的定義是：電(dian)動(dong)(dong)自行(xing)(xing)車是以(yi)蓄電(dian)池作(zuo)為輔助能(neng)源，具(ju)有兩個車輪，能(neng)夠(gou)實(shi)現人力(li)騎行(xing)(xing)，電(dian)動(dong)(dong)或電(dian)動(dong)(dong)助力(li)騎行(xing)(xing)的特種自行(xing)(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、能夠實現電動力(li)或(huo)助力(li)騎行。

     這個解(jie)釋(shi)很(hen)好(hao)的(de)回(hui)答了電(dian)(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)車(che)是(shi)(shi)以蓄電(dian)(dian)(dian)池為(wei)輔助(zhu)能源，電(dian)(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)車(che)是(shi)(shi)自行(xing)(xing)車(che)的(de)一(yi)種(zhong)，屬于特(te)種(zhong)自行(xing)(xing)車(che)。但(dan)是(shi)(shi)沒(mei)有說明(ming)人(ren)力騎(qi)行(xing)(xing)，電(dian)(dian)(dian)動(dong)(dong)(dong)或助(zhu)力騎(qi)行(xing)(xing)三者(zhe)的(de)辯證(zheng)關系，沒(mei)有很(hen)好(hao)的(de)回(hui)答電(dian)(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)車(che)與(yu)自行(xing)(xing)車(che)和(he)輕便電(dian)(dian)(dian)動(dong)(dong)(dong)摩(mo)托的(de)區別(bie)的(de)本質(zhi)屬性是(shi)(shi)什么。我覺得這樣解(jie)釋(shi)更(geng)能說明(ming)電(dian)(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)車(che)的(de)本質(zhi)屬性即：電(dian)(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)是(shi)(shi)一(yi)種(zhong)在自行(xing)(xing)車(che)的(de)基礎上融入電(dian)(dian)(dian)動(dong)(dong)(dong)功(gong)能，并且能夠實現人(ren)力和(he)電(dian)(dian)(dian)動(dong)(dong)(dong)力有機協同工作的(de)一(yi)種(zhong)輕便特(te)種(zhong)自行(xing)(xing)車(che)。

第二，電動自行車的工業基礎是什么？
    既然電(dian)(dian)動自(zi)行(xing)(xing)車(che)(che)是自(zi)行(xing)(xing)車(che)(che)的(de)(de)一(yi)(yi)種，是一(yi)(yi)種特(te)殊的(de)(de)自(zi)行(xing)(xing)車(che)(che)，那么(me)電(dian)(dian)動自(zi)行(xing)(xing)車(che)(che)的(de)(de)工(gong)業(ye)基礎就是自(zi)行(xing)(xing)車(che)(che)。電(dian)(dian)動自(zi)行(xing)(xing)車(che)(che)其他部件的(de)(de)和(he)系統的(de)(de)設計都(dou)應(ying)該圍(wei)繞(rao)這(zhe)個工(gong)業(ye)基礎展開。偏離了這(zhe)個基礎，就會搞出一(yi)(yi)些四(si)不象的(de)(de)怪胎。像(xiang)摩托(tuo)一(yi)(yi)樣超(chao)標電(dian)(dian)動車(che)(che)就是一(yi)(yi)個典(dian)型(xing)的(de)(de)例子。

第三，什么是電動自行車的靈魂？
     電動(dong)自行車有三(san)種騎(qi)行狀態，即(ji)純人(ren)力騎(qi)行，純電動(dong)騎(qi)行，電動(dong)助力。

     三者的關系是(shi)(shi)什(shen)么，電(dian)(dian)動(dong)(dong)(dong)力(li)(li)和人力(li)(li)騎(qi)(qi)行(xing)(xing)混合是(shi)(shi)一(yi)種什(shen)么樣(yang)的混合？純人力(li)(li)踩踏騎(qi)(qi)行(xing)(xing)是(shi)(shi)基礎，電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)不可避免(mian)的會出現路上(shang)電(dian)(dian)量用(yong)盡(jin)的時(shi)候，如(ru)果(guo)沒有(you)(you)人力(li)(li)騎(qi)(qi)行(xing)(xing)功能(neng)(neng)(neng)拋錨在路上(shang)是(shi)(shi)一(yi)件非常討厭的事情(qing)，同時(shi)沒有(you)(you)騎(qi)(qi)行(xing)(xing)功能(neng)(neng)(neng)電(dian)(dian)動(dong)(dong)(dong)兩輪車(che)(che)(che)(che)(che)也不能(neng)(neng)(neng)成為電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)。但是(shi)(shi)現在的問題是(shi)(shi)電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)自(zi)從有(you)(you)了電(dian)(dian)動(dong)(dong)(dong)功能(neng)(neng)(neng)之后，騎(qi)(qi)行(xing)(xing)功能(neng)(neng)(neng)被忽視(shi)，不少電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)純人力(li)(li)騎(qi)(qi)行(xing)(xing)費力(li)(li)。實(shi)際(ji)上(shang)，如(ru)果(guo)電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)的腳踏功能(neng)(neng)(neng)越費力(li)(li)，則(ze)說明電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)的阻力(li)(li)越大，電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)的阻力(li)(li)越大，則(ze)同樣(yang)的電(dian)(dian)池容量電(dian)(dian)動(dong)(dong)(dong)自(zi)行(xing)(xing)車(che)(che)(che)(che)(che)的續行(xing)(xing)距(ju)離(li)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(zheng)車(che)結構，降低空(kong)氣的動態阻(zu)力； 4降低整(zheng)車(che)重量。

    只有降(jiang)低了電動自(zi)行(xing)車的(de)阻力，電動自(zi)行(xing)車才有可能(neng)(neng)有良好(hao)的(de)騎行(xing)能(neng)(neng)力，才能(neng)(neng)為電動自(zi)行(xing)車的(de)純(chun)電動及電動助(zhu)力騎行(xing)打下(xia)良好(hao)的(de)基礎。

    純(chun)(chun)電(dian)動(dong)騎(qi)(qi)行(xing)(xing)，毫無疑問純(chun)(chun)電(dian)動(dong)騎(qi)(qi)行(xing)(xing)是(shi)不用消耗(hao)(hao)騎(qi)(qi)行(xing)(xing)者的(de)(de)體力(li)(li)的(de)(de)，當然在三中騎(qi)(qi)行(xing)(xing)狀態(tai)中也是(shi)最省(sheng)力(li)(li)的(de)(de)，同(tong)時也是(shi)最耗(hao)(hao)電(dian)的(de)(de)一種騎(qi)(qi)行(xing)(xing)方式。但是(shi)長期純(chun)(chun)電(dian)動(dong)騎(qi)(qi)行(xing)(xing)會導致類(lei)似“摩托車綜合癥”影響健康。

    助(zhu)力(li)騎(qi)行，目前的(de)電動(dong)自行車助(zhu)力(li)方式有真(zhen)假兩種，使(shi)用力(li)矩傳(chuan)(chuan)感器(qi)智能助(zhu)力(li)騎(qi)行，使(shi)用速(su)度傳(chuan)(chuan)感器(qi)助(zhu)力(li)騎(qi)行。下面就力(li)矩傳(chuan)(chuan)感器(qi)和速(su)度傳(chuan)(chuan)感做一下對(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，杜絕(jue)推行輪(lun)盤和飛輪(lun)聯動導致的飛車。

優點： 
成本較低。
缺點：  
1.成本較高； 
2.技術成(cheng)熟(shu)度較低。

缺(que)點：1.完全不能實現人力和(he)電動力的協同工作；2.騎行時(shi)掌控困難，有(you)危險性； 3.推行時(shi)輪盤和(he)飛輪聯動會導致飛車危險。

    
   鑒(jian)于(yu)速度傳(chuan)(chuan)感(gan)器(qi)的騎行(xing)時和(he)推(tui)行(xing)時的嚴重安全隱患(huan)，完全不能實現人力(li)(li)和(he)電動力(li)(li)的協同(tong)工作，根(gen)本(ben)就不是什么助力(li)(li)傳(chuan)(chuan)感(gan)器(qi)。力(li)(li)矩(ju)助力(li)(li)傳(chuan)(chuan)感(gan)器(qi)則在(zai)安全等 5個方面(mian)有著明(ming)顯的優勢(shi)則是真正的助力(li)(li)傳(chuan)(chuan)感(gan)器(qi)。

      從(cong)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)的(de)三種(zhong)騎行(xing)(xing)(xing)(xing)(xing)(xing)狀態不難看出，助(zhu)力(li)(li)(li)騎行(xing)(xing)(xing)(xing)(xing)(xing)兼顧了(le)純人(ren)力(li)(li)(li)踩(cai)踏騎行(xing)(xing)(xing)(xing)(xing)(xing)和(he)(he)純電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)騎行(xing)(xing)(xing)(xing)(xing)(xing)的(de)優點。能(neng)(neng)夠實現(xian)人(ren)力(li)(li)(li)和(he)(he)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)力(li)(li)(li)力(li)(li)(li)的(de)協(xie)同(tong)工作；.騎行(xing)(xing)(xing)(xing)(xing)(xing)輕(qing)(qing)松，有益(yi)健康，變騎行(xing)(xing)(xing)(xing)(xing)(xing)為樂趣；有利(li)于挖掘人(ren)力(li)(li)(li)節約電(dian)(dian)(dian)力(li)(li)(li)，增(zeng)加續行(xing)(xing)(xing)(xing)(xing)(xing)里程。就(jiu)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)來說(shuo)純人(ren)力(li)(li)(li)踩(cai)踏騎行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)是(shi)其(qi)本(ben)質(zhi)(zhi)屬(shu)(shu)性；就(jiu)輕(qing)(qing)便電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)摩托車(che)來說(shuo)，純電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)功(gong)能(neng)(neng)是(shi)其(qi)本(ben)質(zhi)(zhi)屬(shu)(shu)性；那么(me)什么(me)才是(shi)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)的(de)本(ben)質(zhi)(zhi)屬(shu)(shu)性呢，能(neng)(neng)夠實現(xian)人(ren)力(li)(li)(li)和(he)(he)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)力(li)(li)(li)協(xie)同(tong)工作的(de)助(zhu)力(li)(li)(li)騎行(xing)(xing)(xing)(xing)(xing)(xing)功(gong)能(neng)(neng)就(jiu)是(shi)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)的(de)本(ben)質(zhi)(zhi)屬(shu)(shu)性。助(zhu)力(li)(li)(li)騎行(xing)(xing)(xing)(xing)(xing)(xing)是(shi)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)向電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)這一更高(gao)層次產品演化的(de)區(qu)別和(he)(he)標志，是(shi)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)的(de)靈魂。那種(zhong)在電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)上把人(ren)力(li)(li)(li)腳踏功(gong)能(neng)(neng)和(he)(he)純電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)功(gong)能(neng)(neng)相互(hu)孤立的(de)設計方案只(zhi)能(neng)(neng)制造出沒有靈魂的(de)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)自(zi)行(xing)(xing)(xing)(xing)(xing)(xing)車(che)軀殼。

    什么是(shi)設計(ji)電動自行車的(de)(de)第一要(yao)素(su)？電動自行車的(de)(de)設計(ji)要(yao)求有：安全，便于規(gui)模化(hua)生產(chan)，時尚(shang)美觀(guan)，舒適便捷(jie)，穩(wen)定(ding)性，維修便利等(deng)，在這些因素(su)中誰(shui)是(shi)最(zui)重要(yao)的(de)(de)，誰(shui)是(shi)次(ci)要(yao)的(de)(de)，誰(shui)是(shi)應當(dang)兼顧考慮(lv)的(de)(de)；它們之間又是(shi)一種什么樣(yang)的(de)(de)關系？

    電動(dong)自(zi)(zi)行車(che)作為(wei)一種交(jiao)通工具來說(shuo)，保(bao)護消(xiao)費者在(zai)(zai)使(shi)(shi)用過(guo)程中的(de)(de)人身和財產安(an)全(quan)(quan)無疑(yi)是最(zui)重(zhong)(zhong)要的(de)(de)。然而目(mu)前的(de)(de)市場上的(de)(de)超過(guo) 70%電動(dong)自(zi)(zi)行車(che)由于使(shi)(shi)用了速度傳感器和自(zi)(zi)動(dong)定速功(gong)能（美其名曰(yue)自(zi)(zi)動(dong)巡(xun)航）有嚴重(zhong)(zhong)安(an)全(quan)(quan)隱患的(de)(de)飛車(che)，這實在(zai)(zai)電動(dong)自(zi)(zi)行車(che)行業的(de)(de)最(zui)大悲哀(ai)！在(zai)(zai)電動(dong)自(zi)(zi)行車(che)設(she)計(ji)要素的(de)(de)排列(lie)關系應當是：安(an)全(quan)(quan)第(di)一；穩定性其次；舒適便(bian)捷再次；便(bian)于規(gui)模(mo)化生產和維修便(bian)利是一對對稱的(de)(de)問題；在(zai)(zai)以上的(de)(de)基(ji)礎上才(cai)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(he)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)(xing)(xing)車(che)(che)來(lai)說純(chun)人(ren)(ren)力(li)踩踏騎行(xing)(xing)(xing)(xing)功(gong)(gong)(gong)能是(shi)其本(ben)質(zhi)屬(shu)性(xing)；就輕(qing)便電(dian)(dian)動(dong)(dong)(dong)摩托車(che)(che)來(lai)說，純(chun)電(dian)(dian)動(dong)(dong)(dong)功(gong)(gong)(gong)能是(shi)其本(ben)質(zhi)屬(shu)性(xing)；那么(me)(me)什么(me)(me)才(cai)是(shi)電(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)車(che)(che)的本(ben)質(zhi)屬(shu)性(xing)呢，融合純(chun)人(ren)(ren)力(li)踩踏功(gong)(gong)(gong)能和純(chun)電(dian)(dian)動(dong)(dong)(dong)功(gong)(gong)(gong)能的助力(li)功(gong)(gong)(gong)能是(shi)電(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)車(che)(che)的本(ben)質(zhi)屬(shu)性(xing)，是(shi)電(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)車(che)(che)區別(bie)于自行(xing)(xing)(xing)(xing)車(che)(che)和輕(qing)便摩托車(che)(che)的唯(wei)一標(biao)志。搞(gao)清了(le)這個問題，才(cai)不(bu)致于生產(chan)出(chu)與自行(xing)(xing)(xing)(xing)車(che)(che)沒有什么(me)(me)關系，讓交警分不(bu)出(chu)來(lai)是(shi)電(dian)(dian)動(dong)(dong)(dong)自行(xing)(xing)(xing)(xing)車(che)(che)還是(shi)摩托車(che)(che)的畸形產(chan)品來(lai)。