电动汽车驾乘人员供暖局部热感觉权重分析
Weight analysis for local thermal sensation of occupants in electric vehicles
摘要：
个性化供暖系统可以有效降低纯电动汽车冬季供暖能耗，为了合理设计个性化供暖系统，需要对驾乘人员的局部热感觉进行准确评价。通过纯电动汽车内个性化供暖（脚部加热、腿部加热、座椅加热及组合加热）试验，对驾乘人员的体表温度和热舒适情况进行了实测分析。结果表明：不同部位的加热，对人体整体热感觉的影响权重不同；局部热感觉的权重系数直接影响个性化供暖的设计和节能效果。通过现场实测和主观问卷调查，并采用主成分分析的方法，得到了个性化供暖方式下各局部热感觉对整体热感觉的影响权重系数。
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:personalized heating; electric vehicle; local thermal sensation; overall thermal sensation; influence weight; local heating; body surface temperature; principal component analysis