基于幾何關(guān)系的空氣懸架執(zhí)行器故障診斷與隔離

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DOI：10.16652/j.issn.1004-373x.2025.17.021 引用格式：，，.基于幾何關(guān)系的空氣懸架執(zhí)行器故障診斷與隔離[J].現(xiàn)代電子技術(shù)，2025，48（17）：137-144.

關(guān)鍵詞：電控空氣懸架；執(zhí)行器故障；幾何關(guān)系；故障診斷；故障隔離；AMESim-Simulink聯(lián)合仿真中圖分類號：TN830.1-34；TP273 文獻標識碼：A 文章編號：1004-373X（2025）17-0137-08

Air suspension actuator fault diagnosis and isolation based on geometric relationships

ZHANG Liping，SUN Tao， ZHU Yongbo （SchoolofAutomobileand TraficEngineering，Liaoning UniversityofTechnology，Jinzhoul21ool，China）

Abstract：Afaultdiagnosisandisolationmethodbasedongeometricrelationships isproposed.Itaimstofindoutthefault locationofthevehicle'selectronicallycontrolledairsuspensionactuatormorequicklywhenitfailsandtodiagnoseandisolate thefaults.Theactuatorstuckfaultandconstantgainfaultaredesigned.Twosetsoffaultdiagnosisindexesaredesignedbased ongeometricrelationship.Thefaultdiagnosisandisolationofthefaultyactuatorarecarryoutaccording totherelatioship betweenthefaultdiagnosisindexesandthethresholdvalue.TheAMESimisusedtobuildthephysicalmodelofelectronially controlldairsuspensionsystem with vehicle speedandroad excitationasinputs，and Simulinkisused tobuildthePID/PWM bodyheightcontrolermodel，thefaultmodel，andthefaultdiagnosticmodelwiththechangeofbodyheightoutputfromthe sensorsasinputs.Finally，theyareverifidbytheAMESim-Simulinkjointsimulation.Fromthesimulationresults，itcabe concludedthatthefaultdiagnosisandisolationmethodbasedongeometricalrelationshipcandiagnosethefaultyactuator efectivelyandisolatethefaultyactuatoracurately.TheAMESimisutilizedtobuildelectronicallycontrolledairsuspension， whichavoidscomplicatedmathematical formula derivationanddescribesthewholesystemmoreacurately.Theproposed fault diagnosisandisolationmethodbasedongeometricrelationshiphavesimpledesignandcandiagnoseandisolatethelocationof faulty actuators quickly.

Keywords：electronicallcontroledairsuspension;actuatorfailure;geometricrelationship;faultdiagnosis;faultisolation; AMESim-Simulink joint simulation

0 引言

近年來，隨著電子技術(shù)在汽車懸架領(lǐng)域的發(fā)展，傳統(tǒng)懸架難以滿足復(fù)雜工況下性能優(yōu)化的需求，影響車輛的平順性和駕駛員的乘坐舒適性。（剩余6344字）