数学分析在汽车点火系统故障诊断中的应用

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中图分类号：U463.64 文献标识码：A 文章编号：1003-8639（2025）07-0144-03

TheApplicationofMathematical Analysisin FaultDiagnosis of Automotive Ignition System

Liu Jianshun，Yin Cuijiao

（School of Mathematicsand Information Science，Zhengzhou Shengda University，Zhengzhou ，China）

【Abstract】The development of automotive electronic technology has promoted the evolution of ignition systems towardshighenergyand integration.Itsnonlineartime-varyingcharacteristicshaveexacerbatedthecouplingbetween fault featuresand interference noise.Forthe progresiveevolutionof hidden faultssuchasabnormal spark plugclearance andagingof ignitioncoils，thetraditionaldiagnosticstrategybasedonphysicalsignalamplitudedetectionisdificultto capturetheearly decaycharacteristics.Basedonmathematical analysis，thisarticleconstructsa faultdiagnosis framework，integrates methodssuchas jointtime-frequencyanalysis，extractionof nonlinear characteristicparameters， andmanifoldlearningdimensionreduction，proposesahybriddiagnosismodelandanti-interferenceoptimization strategy，andpresentsanedge computing implementationscheme.Studies show that this method，through the collborativeoptimizationofmulti-dimensionalfeature fusionanddynamicanti-interference，canefectivelyenhance the diagnostic capabilities for sporadic and complex faults，andcan achieve real-time diagnostic performance with an endto-end processing delay of less than 3ms on the Cortex-M4 processor.

【Key words】automobile ignition system；time-frequency analysis；nonlinear characteristics；manifold learning; edge computing

0 引言

汽车电子技术的进步推动点火系统朝着高能化、集成化方向发展，其非线性时变特性加剧了故障特征与干扰噪声的耦合效应。（剩余3556字）