车辆发动机实车进气流量计算模型研究  

Calculation model studyon intake flow for vehicle engines

作　　者：何星[1] 王宪成[1] 和穆[1] 孙志新[1] 

机构地区：[1]装甲兵工程学院机械工程系,北京100072

出　　处：《中国工程机械学报》2013年第5期380-384,共5页Chinese Journal of Construction Machinery

基　　金：军内科研资助项目(2012ZB02)

摘　　要：针对某型车辆发动机实车进气流量难以测量的问题,通过分析发动机进气系统结构,对气体流动过程进行简化处理.基于气体总流伯努利方程,建立发动机进气流量计算模型,采用空气滤清器台架阻力试验数据对模型进行完善与验证,误差小于2%,并对车辆原位空转及驾驶训练过程进行了测试,进气流量计算结果与实际状况相符.To resolve the measurement difficulties of a specific vehicle engine, the gas flow process is simplified with analysis on engine intake system structure. Based on the Bernoulli gas total flow equation, a calculation model of engine intake flow is established. By applying the resistance testing data on air cleaner bench for model improvement and validation, the error is 2 % below. Through the testing on origi- nal-position idling and driving training process, the intake flow calculation results are coincided with the actual situations.

关 键 词：发动机 进气流量 伯努利方程 计算 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]