In the present paper,the goal applies in the development in the mixed style battery cocurrent of motor driver design in the electrically operated bicycle,the use lead-acid battery and the LiFePO4 battery takes the main actuation power to originate,the iron phosphate lithium battery has the life to be long,the electric discharge power is big and the transformation power suits the high electric current product good the characteristic;The lead-acid battery is in a market condition the quite mature battery product has the high security in the thermostable characteristic,and designs a driving circuit to actuate the cocurrent to have brushes the motor to lead the bicycle advance,comes in the enfilade non-ascent road section use LiFePO4 battery as the actuation electric power to originate,in had the ascent road section use lead-acid battery to come as the actuation electric power to originate, has promoted bicycle's endurance and reduces accumulator cell's energy loss.

本論文中www一级www刺激黄片，目的在研制應(yīng)用於混合式電池於電動(dòng)自行車之直流馬達(dá)驅(qū)動(dòng)器設(shè)計(jì)，使用鉛酸電池與磷酸鐵鋰電池來作為主要驅(qū)動(dòng)動(dòng)力來源女教师日韩精品视频，磷酸鐵鋰電池具有壽命長黄网站色视频、放電功率大及轉(zhuǎn)換功率佳適合高電流產(chǎn)品的特點(diǎn)91久久婷婷人人澡人人澡；鉛酸電池為一市面上相當(dāng)成熟的電池產(chǎn)品具有高度的安全性於耐高溫的特性黑人欧美视频巨粗巨大巨硬，并設(shè)計(jì)一驅(qū)動(dòng)電路來驅(qū)動(dòng)直流有刷馬達(dá)來帶動(dòng)自行車前進(jìn)国产城中村自拍，於直路無斜度路段使用磷酸鐵鋰電池來作為驅(qū)動(dòng)電力來源，於有斜度路段使用鉛酸電池來作為驅(qū)動(dòng)電力來源黄色网站免费提供免费服务，提升了自行車的續(xù)航力和降低蓄電池的能量損耗中国国产精品无码理论片。

"The moped, a light, low-speed motor bicycle that can also be pedal ed, was developed mainly in Europe, and the sturdier Italian-made motor scooter also became popular for its economy."

后來主要在歐洲出現(xiàn)了一種腳踏、輕型人人操人人摸人人干人人看、低速的電動(dòng)自行車无码视频性交，另有一種更牢固的意大利制摩托車由于經(jīng)濟(jì)實(shí)惠而受到歡迎。

"The moped, a light, low-speed motor Bicycle that can also be pedaled, was developed mainly in Europe, and the sturdier Italian-made motor scooter also became popular for its economy."

后來主要在歐洲出現(xiàn)了一種腳踏一级一区黄色、輕型人人操人人人看、低速的電動(dòng)自行車，另有一種更牢固的意大利制摩托車由于經(jīng)濟(jì)實(shí)惠而受到歡迎十八岁不能看的黄色网站。

Bluebird：藍(lán)鳥

Benz)和"大眾"(Volkswagen),日本的"皇冠"(Crown)和"藍(lán)鳥"(Bluebird). 不過在交通擁擠的今天,越來越多的人更喜歡騎摩托車(motor bicycle或motor bike)和自行車(bicycle或bike). 近年英美國家工業(yè)發(fā)展迅速,加之人們上班路途遙遠(yuǎn),

Rear-end collision danger：追尾危險(xiǎn)

自行車 Bicycle | 追尾危險(xiǎn) Rear-end collision danger | 非機(jī)動(dòng)車 Non-motor vehicle