降低发动机催化器起燃工况下碳氢排放的方法  

The Method to Decrease Hydrocarbon Emission of Gasoline Engine in Catalytic Converter Ignition Condition

作　　者：林思聪 吴坚 李钰怀 秦博 吴翔 

机构地区：[1]广州汽车集团股份有限公司汽车工程研究院

出　　处：《汽车工程师》2017年第10期47-49,共3页Automotive Engineer

摘　　要：为了满足国VI排放法规的要求,针对整车排放循环中的碳氢排放问题,在发动机试验台架上,通过调整ECU控制策略,进行发动机台架试验,试验结果表明,采用推迟点火提前角、提高发动机负荷、提高发动机转速、控制偏稀空燃比及提高发动机水温等方法可以有效地降低碳氢排放,达到了国VI排放法规的要求,对减少汽车的碳氢排放设计有借鉴作用。In order to satisfy China 6 stage emission legislation, focused on the hydrocarbon emission in the vehicle test cycle,engine is tested on the engine test bench through adjusting ECU control strategy, the test result illustrates that retarding ignition angle, increasing engine load, increasing engine speed, leaning air fuel ratio control and increasing engine coolant temperature can decrease the hydrocarbon emission, meeting the requirement of China 6 stage emission legislation, it can help to decrease hydrocarbon emission of the vehicle.

关 键 词：汽车发动机 碳氢排放 起燃工况 排气温度 

分 类 号：U464[机械工程—车辆工程]