摘要
建立了基于传动系能量均衡以电池充放电电流为控制变量的系统模型和以等效油耗最小为目标的优化数学模型.在设定参数条件下,以基于电量平衡的瞬时优化策略对2种常见行驶工况进行了整车仿真.将仿真结果与功率跟随策略的仿真结果进行比较,表明瞬时优化策略能更好地维持车辆行驶过程中电池电量平衡.
In this study, a system model, which is controlled by battery-chargeable current, is established for series hybrid electrical vehicles via transmission energy balance. Meanwhile, an equivalent mathematical model is developed using minimal energy-consuming as an objective function. By setting relevant parameters and demonstrating two frequent driving conditions, a vehicle simulation is conducted based on an optimization strategy on instantaneous charge balance. In comparison with simulation results from the aforementioned strategy and power tracking strategy, it is indicated that the instantaneous optimization strategy can more effectively enable vehicles＇battery charge balance in the driving process.
出处
《中国工程机械学报》
2008年第1期13-18,共6页
Chinese Journal of Construction Machinery
关键词
混合动力系统
控制策略
瞬时优化
电量平衡
hybrid electrical vehicles
control strategy
instantaneous optimization
charge balance
