摘要
以油电混合动力汽车整车控制策略为基础,提出一种基于线性规划的智能充电能量分配策略,改善了混合动力汽车燃油经济性。该策略在维持高压电池SOC平衡的前提下,根据整车需求功率,发动机和中混电机转速,结合各动力总成部件能量传递的效率,以系统等效燃油消耗最小为原则进行扭矩分配优化。通过仿真结果表明,该策略比普通瞬时优化策略提高了整车燃油经济性。
Based on the control strategy for HEV, a smart charge energy distribution strategy based on linear programming is put forward to improve the fuel economy of HEV. In order to maintain balance of SOC, this strategy takes vehicle demand power, engine and medium hybrid motor speed into consideration, also the efficiency of respective power component, to distribute torque based on minimal vehicle equivalent fuel economy principle. Simulation results indicate that this strategy is more effective to improve fuel economy than ordinary instantaneous optimal strategy.
出处
《上海汽车》
2011年第2期7-10,共4页
Shanghai Auto
