江苏大学学报（自然科学版）2012，Vol.33Issue(6)：626-631,6.DOI:10.3969/j.issn.1671-7775.2012.06.002
加快三元催化器起燃的HEV混合驱动控制策略
Control strategy of increasing three-way catalytic converter light-off for hybrid electric vehicle in combination driving cycle
摘要
Abstract
To lighten the influence of three-way catalyst characteristics on vehicle emission during cold start,a fuzzy logic controller of energy management with decreased engine output power to improve engine exhaust temperature in combination driving cycle was designed to speed up the catalytic converter light off. Based on the minimum principle, the catalyst optimum light-off control strategy was proposed. According to lumped method of neat capacity, vehicle dynamic model was established with consideration of the transient characteristics of catalytic converter in Matalb/simulink. The influence of the two control strategies on the fuel consumption and emission performance was analyzed. The simulation and the bench test results show that both the control strategies can increase transferred heat from exhaust emission to catalytic converter and shorten catalyst light-off time. The engine emission performance of hybrid electric vehicle during cold start can be improved effectively by the proposed strategies.关键词
混合动力汽车/三元催化器/冷起动/能量管理/起燃时间最优控制Key words
hybrid electric vehicle/three-way catalyst/cold start/energy management/light-off optimum control分类
交通工程引用本文复制引用
隗寒冰,秦大同,陈淑江,段志辉..加快三元催化器起燃的HEV混合驱动控制策略[J].江苏大学学报（自然科学版）,2012,33(6):626-631,6.基金项目
国家"863"计划项目(2006AA11A107) （2006AA11A107）
重庆市重大科技攻关项目(CSTC2008AA6025) （CSTC2008AA6025）
