摘要
针对采用柴油发动机和蓄电池作为动力源的并联式混合动力汽车,建立了基于Matlab/Simulink的车辆纵向动力学和驾驶员模型,并设计了功率跟随式控制策略。该控制策略将车速、负载和蓄电池SOC作为控制变量,以降低颗粒物与氮氧化物排放、提高燃油经济性为目标,采用Stateflow实现。基于新欧洲行驶循环的仿真结果表明,采用该混合动力驱动系统能较好的满足整车动力性要求,在降低燃油消耗的同时显著提高排放性能。
Aiming at the PHEV （parallel hybrid electric vehicle） powered by diesel engine and battery, a model for longitudinal dynamics of vehicle and driver is established based on Matlab/ Simulink. Also a power-follower control strategy is designed. This strategy takes vehicle speed, load and battery SOC as decision-making variables. It uses Stateflow trying to reduce PM （particulate mat- ter） and NOX （nitrogen oxide） emissions and to improve fuel economy. The result based on NEDC shows that this system can properly meet the requirement of vehicle dynamic performance, and can pro- mote emission performance and meanwhile reduce fuel consumption.
出处
《上海汽车》
2012年第9期3-7,共5页
Shanghai Auto
