关于燃料电池电动汽车能耗计算方法的研究

Research on Calculation Method of Fuel Cell Electric Vehicle Power Consumption

由于燃料电池电动汽车结构的特殊性,在计算其百公里电能消耗量(简称电耗)时,不同的计算方案结果差异较大,存在不少争议。基于1台全功率型燃料电池乘用车的续航测试数据,探讨了不同计算方案下的电耗结果。结果表明:影响电耗的主要因素为电池充放电效率、充电机效率、燃料电池堆(简称电堆)升压DCDC效率;方案二中的电耗最大,相比其他方案,增加了43%-62%;不同方案下百公里氢气消耗量(简称氢耗)偏差较小,在4%以内;电堆升压DCDC效率对电耗和氢耗结果的影响大于充电机效率。

Due to the particularity of the structure of fuel cell electric vehicles,when calculating its electricity consumption,the results of different calculation schemes are quite different,and there are many disputes. Based on the endurance test data of a full-power fuel cell passenger car,it discusses the electricity consumption results under different calculation schemes. The results show that: The main factors affecting electricity consumption are: battery charging and discharging efficiency,charger efficiency,and fuel cell stack boost DCDC efficiency;The electricity consumption in the second scheme is the largest,which is 43% to 62% larger than other schemes;Hydrogen consumption under different schemes,the deviation is small,within 4%;The effect of the fuel cell stack boost DCDC efficiency on the electricity consumption and hydrogen consumption results is greater than the efficiency of the charger.