| 基于DSP的柴油机瞬时转速智能监测节点设计 |
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| 引用本文： | 程利军,张英堂,李志宁,任国全,李健伟.基于DSP的柴油机瞬时转速智能监测节点设计[J].车用发动机,2011(3):86-89. |
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| 作者姓名： | 程利军 张英堂 李志宁 任国全 李健伟 |
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| 作者单位： | 军械工程学院;济南72502部队; |
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| 基金项目： | 河北省自然科学基金资助项目(E20007001048) |
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| 摘 要： | 针对柴油机实车在线监测中车内空间有限及变速变载的情况,设计了基于嵌入式系统的柴油机智能监测节点.在对磁电式转速传感器及外卡式油压传感器信号进行同步采样后,利用零相位滤波将瞬时转速的计算精度提高了50倍.利用外卡式油压传感器信号定位到柴油机工作周期后,可监控柴油机工作周期内的转速波动值,进而定位失火故障.
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| 关 键 词： | 柴油机 故障诊断 瞬时转速 滤波 数字信号处理器 |
Design of Transient Speed Monitoring Nodes for Diesel Engine Based on DSP |
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| CHENG Li-jun,ZHANG Ying-tang,LI Zhi-ning,REN Guo-quan,LI Jian-wei.Design of Transient Speed Monitoring Nodes for Diesel Engine Based on DSP[J].Vehicle Engine,2011(3):86-89. |
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| Authors: | CHENG Li-jun ZHANG Ying-tang LI Zhi-ning REN Guo-quan LI Jian-wei |
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| Institution: | CHENG Li-jun1,ZHANG Ying-tang1,LI Zhi-ning1,REN Guo-quan1,LI Jian-wei2(1.Ordnance Engineering College,Shijiazhuang 050003,China,2.People's Liberate Army 72502 Troop,Ji'nan 250003,China) |
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| Abstract: | For the speed and load changing and the space limitation in the online monitoring of diesel vehicle,the intelligent monitoring nodes based on the embedded system were designed.After sampling the signals of magnetoelectricity speed sensor and gripper piezo crystal sensor synchronously,the transient speed was calculated.In the calculation,the application of the zero-phase digital filtering made the precision improved by 50 times.Using the gripper piezo crystal sensor signal to gain the diesel work cycle,the s... |
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| Keywords: | diesel engine fault diagnosis transient speed filtering DSP |
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