车用发动机
車用髮動機
차용발동궤
2014年
6期
79-83,88
,共6页
乔新勇%刘春华%刘君%靳莹
喬新勇%劉春華%劉君%靳瑩
교신용%류춘화%류군%근형
柴油机%气缸压力%瞬时转速%RB F神经网络%信号检测
柴油機%氣缸壓力%瞬時轉速%RB F神經網絡%信號檢測
시유궤%기항압력%순시전속%RB F신경망락%신호검측
diesel engine%cylinder pressure%instantaneous speed%RBF neural network%signal detection
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。
提齣瞭一種利用柴油機倒拖過程瞬時轉速分析來檢測氣缸壓縮性能的方法。通過試驗同步測量瞭車輛倒拖過程的麯軸瞬時轉速和氣缸壓縮壓力信號，利用徑嚮基神經網絡（RBF ）模型，建立瞭瞬時轉速與氣缸壓縮壓力的非線性映射關繫，實現瞭由瞬時轉速波動特徵來間接檢測氣缸壓縮壓力，併由此判斷氣缸的壓縮性能。
제출료일충이용시유궤도타과정순시전속분석래검측기항압축성능적방법。통과시험동보측량료차량도타과정적곡축순시전속화기항압축압력신호，이용경향기신경망락（RBF ）모형，건립료순시전속여기항압축압력적비선성영사관계，실현료유순시전속파동특정래간접검측기항압축압력，병유차판단기항적압축성능。
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 .
