碳平衡法测量汽车油耗的误差影响因素分析  

Error Component Analysis on Fuel Consumption Measurement Using Carbon Balance Method

作　　者：高有山[1] 王斌[2] 王爱红[1] 

机构地区：[1]太原科技大学机电工程学院,太原030024 [2]江苏扬州工业职业技术学院电子信息工程系,扬州225127

出　　处：《车辆与动力技术》2009年第1期40-42,60,共4页Vehicle & Power Technology

摘　　要：推导碳平衡法测量油耗值和燃油碳氢组分之间的关系及有关参数误差对碳平衡法测量油耗值的影响,并将碳平衡法测量的汽车油耗与试验值进行对比.分析表明:气体分析仪的测量精度、燃油特性、燃油密度、以及温度、气压测量的准确度都影响碳平衡法测量值的准确度;温度测量误差对碳平衡法测量准确度的影响可达4.6%,碳质量比误差对碳平衡法测量准确度的影响为1.3%;CO2、CO、HC的测量误差对碳平衡法测量准确度的影响小于1%.The relationship between the hydrogen-carbon ratio of fuel and the measured value of carbon balance method, and the measured value influenced by the relative parameters error were deduced. Analysis shows that accuracy of gas analyzer measurement, speciality of fuel, fuel density, temperature, air pressure all influenced the accuracy of carbon balance method. The accuracy of carbon balance method influenced by temperature measurement error can reach 4.6%, The accuracy influenced by hydrogencarbon ratio of fuel can reach 1.3% , The accuracy influenced by CO2 , CO, HC measurement error can reach less than 1%.

关 键 词：汽车油耗 碳平衡法 误差分析 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]