| 电动汽车电源变换器的柔性安全设计 |
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| 引用本文： | 黄勇,仇斌,卢青春,陈全世,欧阳明高.电动汽车电源变换器的柔性安全设计[J].汽车工程,2005,27(6):656-659. |
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| 作者姓名： | 黄勇 仇斌 卢青春 陈全世 欧阳明高 |
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| 作者单位： | 清华大学,汽车安全与节能国家重点实验室,北京,100084;清华大学,汽车安全与节能国家重点实验室,北京,100084;清华大学,汽车安全与节能国家重点实验室,北京,100084;清华大学,汽车安全与节能国家重点实验室,北京,100084;清华大学,汽车安全与节能国家重点实验室,北京,100084 |
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| 基金项目： | 国家863计划电动汽车重大专项（2003AA501100）资助. |
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| 摘 要： | 根据电动汽车电源变换器功率开关管的温度-电流特性,提出了基于温度变化的动态电流限制方法,用来避免功率开关管过热及由过热保护而引起的切断电源变换器输出功率的现象,保证电动汽车的安全运行。在此基础上开发了单片机测控单元,实现功率开关管电流、温度的监测以及电源变换器输出电流的实时调节,保证电源变换器的持续、安全工作。通过车载CAN网络,实现电源变换器与整车监测系统的通信。
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| 关 键 词： | 电动汽车 电源变换器 温度 限流 |
| 收稿时间： | 2004-07-26 |
| 修稿时间： | 2004-07-262004-12-14 |
Flexible Safety Design of Power Converter in Electric Vehicle |
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| Huang Yong,Qiu Bin,Lu Qingchun,Chen Quanshi,Ouyang Minggao.Flexible Safety Design of Power Converter in Electric Vehicle[J].Automotive Engineering,2005,27(6):656-659. |
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| Authors: | Huang Yong Qiu Bin Lu Qingchun Chen Quanshi Ouyang Minggao |
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| Institution: | Tsinghua University , State Key Laboratory of Automobile Safety and Energy, Beijing 100084 |
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| Abstract: | Shutting down of power converter in the case of overheating breaks off the energy transfer of electric system of complete vehicle and cannot ensure the safe operation of the vehicle.In view of this,a method of limiting dynamic current is proposed,based on the "temperature-current" characteristic of power switching device.A microprocessor-based control unit is developed and the monitoring of the current and temperature of power switching device and the real-time adjustment of output current of power converter are realized,ensuring the safe and sustained operation of power converter.The communications between power converter and monitoring system of complete vehicle is fulfilled by on-board CAN network. |
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| Keywords: | Electric vehicle Power converter Temperature Current limitation |
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