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暖通空調>期刊目次>2022年>第8期

電動汽車駕乘人員供暖局部熱感覺權重分析

Weight analysis for local thermal sensation of occupants in electric vehicles

趙敬德 樊 杰 范華玉 鄒 鉞
東華大學

摘要:

個性化供暖系統可以有效降低純電動汽車冬季供暖能耗,為了合理設計個性化供暖系統,需要對駕乘人員的局部熱感覺進行準確評價。通過純電動汽車內個性化供暖(腳部加熱、腿部加熱、座椅加熱及組合加熱)試驗,對駕乘人員的體表溫度和熱舒適情況進行了實測分析。結果表明:不同部位的加熱,對人體整體熱感覺的影響權重不同;局部熱感覺的權重系數直接影響個性化供暖的設計和節能效果。通過現場實測和主觀問卷調查,并采用主成分分析的方法,得到了個性化供暖方式下各局部熱感覺對整體熱感覺的影響權重系數。

關鍵詞:個性化供暖;電動汽車;局部熱感覺;整體熱感覺;影響權重;局部加熱;體表溫度;主成分分析

Abstract:

The personalized heating system can effectively reduce the heating energy consumption of pure electric vehicles in winter. In order to reasonably design the personalized heating system, it is necessary to accurately evaluate the local thermal sensation of occupants in electric vehicles. In this paper, through the experiment of personalized heating (foot heating, leg heating, seat heating and combined heating) in a pure electric vehicle, the body surface temperature and thermal comfort of the occupant are measured and analysed. The results show that the heating of different parts has different weight of influence on the overall thermal sensation of human body. The weight coefficient of local thermal sensation directly affects the design and energy saving effect of personalized heating. Through the field measurement and subjective questionnaire survey, and using the method of principal component analysis, the influence weight coefficient of each local thermal sensation on overall thermal sensation is obtained under personalized heating mode.

Keywords:personalizedheating;electricvehicle;localthermalsensation;overallthermalsensation;influenceweight;localheating;bodysurfacetemperature;principalcomponentanalysis

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