混合动力汽车油耗测试试验研究

A Research on Fuel/Energy Consumption Testing for A Hybrid Electric Vehicle on Dynamometer

介绍非外接充电型HEV的能量油耗测试及数据分析结果。油耗与其主电池的充放电情况呈现很强的相关性,若某次试验的充放电净值为充电,且充电量大,则该车试验的油耗相对较高。通过充放电净值来修正油耗,可以得到该HEV的修正后油耗值。对修正步骤加以一定补充,可得出更接近真实值的油耗值。

The fuel/energy consumption of a not off-vehicle-charging hybrid electric vehicle （NOVC HEV） is tested on dynamometer. The results show strong relation between fuel consumption and net charge Q of main battery： the higher the absolutely value of the net charge Q of battery （when it indicates charging state）, the higher the fuel consumption. So the fuel consumption can be corrected by net charge Q and a corrected fuel consumption can be obtained. Furthermore, if the cumulated discharge of battery is taken as another parameter together with net charge to do the correction, the corrected fuel consumption will be closer to the true value.