电动汽车电池智能快速充电器的设计

[摘要]：本文介绍了一种电动汽车智能快速充电器的设计过程。该充电器基于Cygnal 公司的C8051F040单片机为控制核心，将C8051F040 特有的模拟电路模块、高精度A/D 转换、I2C 总线接口以及高速PWM等功能运用到充电控制中。该充电器嵌入μC/OS-II 实时操作系统并采用移相全桥软开关的主电路拓扑，具有较高的效率，而且电流、电压应力小，工作稳定可靠。本文详细讲述了其硬件和软件的设计过程。

[关键词]：电动汽车；智能控制；快速充电。

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

电池是电动汽车的关键动力输出单位，在铅酸蓄电池，镍镉电池，镍氢电池，锂电池和

燃料电池等几种常用电池中，因为具有能量比大、重量轻、温度特性好，污染低，记忆效果不明显等特点，铅酸蓄电池、镍氢电池在电动汽车中使用很普遍。然而由于充电方法的不正确，造成充电电池的使用寿命远远低于规定的寿命。也就是说很多电池不是被用坏的而是被充坏的，可见充电器的好坏对电池寿命有很大的影响。基于此，本文提出一种使用C8051F040单片机智能充电控制方案的智能充电器的设计，能有效的提高充电效率，延长电池的使用寿

命。