基于排气温度优化的混合动力发动机起停控制算法  

Control Algorithm of Hybrid Engine Starting and Stopping System Based on Exhaust Gas Temperature Optimization

作　　者：尚明利[1] 邹玉凤[2] 柳建新[1] 宋瑞芳[1] 

机构地区：[1]郑州宇通客车股份有限公司,郑州450061 [2]郑州交通技师学院,郑州450016

出　　处：《客车技术与研究》2015年第6期6-8,共3页Bus & Coach Technology and Research

摘　　要：针对混合动力客车发动机停机所导致的排气温度偏低引起NO_x排放升高的问题,通过引入排气温度及NO_x含量等信号进行发动机起停优化控制,提升整车排气温度,降低NO_x等污染物排放量。利用实车台架对比测试,结果充分验证了控制算法的有效性。For the hybrid bus＇ problem that the low exhaust gas temperature because of the engine stop results in the NOx pollutant increasing, the authors add exhaust gas temperature signal and NOx content signal to the input signals to optimally control the engine starting and stopping in order to raise the exhaust gas temperature and reduce the NOx pollutant emissions. By using the real vehicle bench test, the comparison results fully show the effectiveness of this control strategy.

关 键 词：混合动力发动机 排气温度 发动机起停控制 算法 

分 类 号：U469.7[机械工程—车辆工程] U464[交通运输工程—载运工具运用工程]