混合动力汽车动力性和经济性道路试验

ROAD TEST FOR DYNAMIC AND ECONOMY PERFORMANCE OF HYBRID ELECTRIC VEHICLE

结合混合动力汽车的特点,根据传统汽车试验标准并参考SAE J1711混合动力轿车试验方法对EQ7200HEV 第一轮样车进行了道路试验。试验包括0～100 km／h加速试验、最高车速试验、最大爬坡试验及ECE15工况燃油 经济性试验等。试验结果表明,试验样车可以合理、准确的实现多工况切换与控制功能,燃油经济性与基础样车 比较有所提高,但需在第二轮开发时重点提高动力性、经济性方面的研究。道路试验为样车参数标定、控制策略 优化及系统匹配提供了理论依据,同时对混合动力汽车试验方法进行了有益的探讨。

Road tests of first sample car EQ7200HEV are carried out according to the character of hybrid electric vehicle （HEV）. The experimental method is based on national standards on conventional vehicles and SAE J1711. The experiments include acceleration test of 0-100 km/h, highest-speed test, climbing capacity test, and fuel economy test based on ECE15 driving cycle. The results show that hybrid control unit （HCU） can operate powertraln logically and accurately. The fuel consumption deduces by comparison with the traditional one. The experiments also show that more improvements should be emphasized on the dynamic and economy feature. The road tests serve as references for the parameter-calibration, optimization of control strategy and the system matching. A helpful discussion about HEV＇s test procedure is also undergone.