摘要
提出了一种利用柴油机倒拖过程瞬时转速分析来检测气缸压缩性能的方法。通过试验同步测量了车辆倒拖过程的曲轴瞬时转速和气缸压缩压力信号,利用径向基神经网络(RBF)模型,建立了瞬时转速与气缸压缩压力的非线性映射关系,实现了由瞬时转速波动特征来间接检测气缸压缩压力,并由此判断气缸的压缩性能。
The method of detecting the cylinder compression performance by analyzing the instantaneous speed of dragging diesel engine was put forward .The instantaneous speed of crankshaft and in‐cylinder compression pressure were both measured simultaneously during the dragging process ,the nonlinear mapping relationship between instantaneous speed and cylinder com‐pression pressure was built by using RBF neural network ,the detection of cylinder compression pressure was realized according to the fluctuation of instantaneous speed and thus the cylinder compression performance could be estimated .
出处
《车用发动机》
北大核心
2014年第6期79-83,88,共6页
Vehicle Engine
关键词
柴油机
气缸压力
瞬时转速
RB
F神经网络
信号检测
diesel engine
cylinder pressure
instantaneous speed
RBF neural network
signal detection
