【作者】 孙宏图； 王天灵； 宋希庚；

【Author】 Sun Hongtu;Wang Tianling;Song Xigeng;Dalian University of Technology;FAW;

【机构】 大连理工大学汽车工程学院； 一汽解放大连柴油机厂；

【摘要】 通过试验测量大连城市公交客车的整车和发动机的运行工况,统计分析出大连城市公交客车的循环工况和发动机的工作点。利用CRUISE软件,对城市公交客车循环工况进行了整车仿真计算,表明试验与仿真计算的结果很相近。计算了使用国家标准四工况循环的城市公交客车发动机的工况,并与城市公交循环工况对比,表明该公交客车燃油经济性较差。仿真计算根据发动机的工作点,可通过改变动力传动系统参数,提高了整车燃油经济性。更多还原

【Abstract】 Based on the driving conditions data which had been measured on the real-world city bus,the vehicle driving cycles and the engine working conditions was analyzed and summarized.It is shown that the computer simulation with CRUISE is so close to results of experiment.It is also concluded that the fuel economy was weak with the computer simulation under the national standard 4 driving cycles on the city bus and Dalian driving cycles.The performance of fuel economy could be improved with the change of powertrain parameter refer to the working conditions points on the engine map.更多还原