摘要
为提高城市循环工况下客车的燃油经济性,开展了一种新型混联式混合动力客车匹配控制策略研究。根据该混联系统的结构特点,制定了串联与并联模式间的切换条件及控制规则,通过确定电池等效燃油模型,以各时刻下客车燃油消耗率最小为优化目标,对电池和发动机功率进行实时优化控制。研究结果表明:电池荷电状态在预定的区域内保持平衡,发动机运行工作点处于高效区域内,且整车燃油经济性相对原型客车提高了32.41%,与采用规则控制策略相比提高了13.2%。
To improve fuel economy of a novel series-parallel hybrid electric bus （SPHEB）, a real-time optimization control strategy was proposed. According to the characteristics of the novel series-parallel structure, the switching boundary condition between series and parallel mode as well as the control rules were set up. The equivalent fuel model of battery was established. To minimize the fuel consumption at each sampled time, real-time optimization control of the engine and battery was conducted. The results indicate that the proposed strategy can not only sustain the charged battery in balance within its operational range and keep the engine operation points within the peak efficiency region, but also increase the fuel economy of novel SPHEB dramatically by 32. 41%, compared with the prototype bus, and reduce the fuel consumption by 13. 2%, compared with rule-based strategy.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2012年第5期152-158,共7页
China Journal of Highway and Transport
基金
国家自然科学基金项目(51075410)
关键词
汽车工程
城市客车
在环试验
混合动力传动
时实优化
控制策略
automotive engineering
city bus
test-in-the-loop
hybrid powertrain
real-time optimization
control strategy
作者简介
林歆悠（1981-），男，福建泉州人，讲师，工学博士，Email：linxinyoou@gmail．com。
