阳光照射下汽车内部件温度的数学模型  

Mathematical model for temperature of parts inside automobile under sunlight

作　　者：马进[1] 回振桥 王松[1] 李菲菲[1] MA Jin;HUI Zhenqiao;WANG Song;LI Feifei(School of Control and Computer Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学控制与计算机工程学院,河北保定071003

出　　处：《现代电子技术》2017年第14期5-9,14,共6页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(61174111);中央高校基本科研业务费专项基金资助项目(2015ZD17);华北电力大学专业综合改革试点项目

摘　　要：由于温室效应的存在,阳光照射条件下汽车内部温度往往高于环境温度,降低了乘车的舒适度。为了研究阳光照射下车内温度的变化规律,根据天文学理论,建立了太阳辐射模型;采用机理建模方法,建立了汽车内座椅、表盘、空气、玻璃的数学模型。以STC89C52单片机为核心,采用DS18B20温度传感器,设计无线多点温度采集系统,进行车内实际温度测量。通过温度数据对比验证了机理数学模型的正确性。在此基础上,建立了不同阳光辐射条件下车内部件温度的传递函数模型,为车内温度控制研究提供了依据。Due to the greenhouse effect,the car interior temperature is often higher than the ambient temperature undersunlight.To study the variation of the temperature inside the vehicle under sunlight,a solar radiation model was built based onastronomical theories.The mathematical models of the car seat,dashboard,air and glass were established with mechanism modeling method.A multi point temperature wireless acquisition system was designed based on STC89C52microcontroller andDS18B20temperature sensor to measure the temperature inside cars.The correctness of the mechanism mathematical model wasverified in comparison with temperature data.Based on this,a transfer function model of the car interior temperature under different solar radiation conditions was established.It provides a foundation for study on the car interior temperature control.

关 键 词：汽车内部温度 机理模型 太阳辐射 传递函数模型 

分 类 号：TN37.3-34[电子电信—物理电子学] TK511[动力工程及工程热物理—热能工程]