[摘要]：本文介紹了一種電動汽車智能快速充電器的設(shè)計(jì)過程。該充電器基于Cygnal 公司的C8051F040單片機(jī)為控制核心，將C8051F040 特有的模擬電路模塊、高精度A/D 轉(zhuǎn)換、I2C 總線接口以及高速PWM等功能運(yùn)用到充電控制中。該充電器嵌入μC/OS-II 實(shí)時(shí)操作系統(tǒng)并采用移相全橋軟開關(guān)的主電路拓?fù)?，具有較高的效率，而且電流、電壓應(yīng)力小，工作穩(wěn)定可靠。本文詳細(xì)講述了其硬件和軟件的設(shè)計(jì)過程。
[關(guān)鍵詞]：電動汽車；智能控制；快速充電。

Electric Automobile Battery Intelligence Fleetness Charger
Design
HUAG Hui-xiong YUAN Li-hui LUO Ji-hong SU shen-bao
（Hunan Vocational College of Commerce, Changsha 410205, China)
[Abstract]: One kind of electric automobile intelligence fleetness charger design process the main body of a book has been introduced. Be a charger's turn to control middle owing to that the C8051F040 of Cygnal company monolithic machine being to control core , the proper dummy load module , high-accuracy A/D change C8051F040 , functions such as I2C highway interface and high speed PWM applies to battery charging. And be a charger's turn to implant μC/OS-II real
time OS and adopt to move the each other complete bridge soft the switch host circuit topology,have higher efficiency, electric current , voltage strain are small , job stability is reliable. Whose hardware and the software design process the main body of a book has been given an account of detailedly.
[Keywords]: Electric automobile; Intelligent control; Quick charge.
1、引言
電池是電動汽車的關(guān)鍵動力輸出單位，在鉛酸蓄電池，鎳鎘電池，鎳氫電池，鋰電池和
燃料電池等幾種常用電池中，因?yàn)榫哂心芰勘却蟆⒅亓枯p、溫度特性好，污染低，記憶效果不明顯等特點(diǎn)，鉛酸蓄電池、鎳氫電池在電動汽車中使用很普遍。然而由于充電方法的不正確，造成充電電池的使用壽命遠(yuǎn)遠(yuǎn)低于規(guī)定的壽命。也就是說很多電池不是被用壞的而是被充壞的，可見充電器的好壞對電池壽命有很大的影響。基于此，本文提出一種使用C8051F040單片機(jī)智能充電控制方案的智能充電器的設(shè)計(jì)，能有效的提高充電效率，延長電池的使用壽
命。