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电加热三元催化剂预热的PSHEV冷起动排放仿真 被引量:1

PSHEV Cold Start Emission Simulation Based on Electric Heated Catalyst Pre-heating
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摘要 为进一步降低插电式串联混合动力汽车(Plug-in Series Hybrid Electric Vehicle, PSHEV)冷起动阶段的排放,对PSHEV进行整车建模,基于发动机的起停优化控制策略,建立电加热三元催化剂(Electrically Heated Catalyst System,EHCS)动力学模型,并提出基于EHCS预热的PSHEV能量管理控制策略。仿真分析不同预热功率对EHCS温度的影响,对比该控制策略与原控制策略SOC值,并对比分析三元催化剂预热、后加热以及不加热三种策略下的冷起动排放。结果表明,PSHEV采用2 kW预热150 s的发动机起停优化的控制策略能以微小的燃油消耗代价,减少冷起动时HC/CO排放量。 In order to reduce the emissions of the plug-in series hybrid electric vehicle(PSHEV) during the cold start phase, a vehicle model on PSHEV is established and a dynamic model of electrically heated catalyst system(EHCS) based on optimization and control strategy of engine start-stop is built. The PSHEV energy management control strategy based on EHCS preheating is proposed. The influence of different pre-heating power on EHCS temperature is simulated. By comparing SOC value of the control strategy with the original control strategy;and comparative analysis of cold start emissions of three elements catalyst under three strategies of pre-heating, post-heating and non-heating;it is found that PSHEV with 2 kW preheat 150 s engine start and stop optimization of the control strategy can reduce the cold start HC/CO emissions at price of a small fuel consumption costs.
作者 邓涛 余浩源 李志飞 谭海鑫 Deng Tao;Yu Haoyuan;Li Zhifei;Tan Haixin(School of Mechatronics & Automotive Engineering, Chongqing Jiaotong University, Chongqing 400074, China)
出处 《系统仿真学报》 CAS CSCD 北大核心 2019年第6期1150-1157,共8页 Journal of System Simulation
基金 国家自然科学基金(51305473) 中国博士后科学基金(2014M552317) 重庆市博士后研究人员科研项目特别资助(xm2014032)
关键词 插电式串联混合动力汽车 冷起动 电加热三元催化剂 控制策略 仿真 PSHEV cold start EHCS (electrically heated catalyst system) control strategy simulation
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