关于缸压传感器替代发动机凸轮轴和曲轴位置传感器的研究  

A Research on Cylinder Pressure Sensor as an Alternative for the Camshaft and Crankshaft Position Sensors of Engine

作　　者：王金力[1] 杨福源[1] 欧阳明高[1] 黄颖[1] 方成[1,2] 杨学青[1] 

机构地区：[1]清华大学汽车工程系,北京100084 [2]北京易控凌博汽车电子技术有限公司,北京100084

出　　处：《汽车工程》2014年第12期1455-1460,共6页Automotive Engineering

基　　金：国家863计划项目(2012AA111714-02)资助

摘　　要：为开发基于缸压的发动机燃烧控制系统,在一台高压共轨柴油机上,利用一组兼有电热塞功能的压阻型缸压传感器,通过构建缸压预测模型,分析了发动机的气缸识别、相位估计和转速估计方法,探讨了用缸压信号替代凸轮轴和曲轴信号的可行性。结果表明,缸压传感器可以替代凸轮轴和曲轴位置传感器进行判缸,所建的发动机相位和转速估计模型具有较高的精度。For developing cylinder pressure-based engine combustion state control system,by using a set of piezo-resistance type of cylinder pressure sensors with glow-plug function and building a cylinder pressure prediction model,the techniques of cylinder identification and phase and speed estimations of engine are analyzed on a highpressure common-rail diesel engine to investigate the feasibility of substituting the camshaft and crankshaft signals with cylinder pressure signal. The results show that cylinder pressure sensor can be used to identify cylinder instead of camshaft and crankshaft position sensors,and the models built for the phase and rotational speed estimations of engine have relatively high accuracy.

关 键 词：发动机 缸压传感器 气缸识别 相位估计 转速估计 

分 类 号：U464.13[机械工程—车辆工程]