MR阻尼器驅(qū)動的智能車輛懸架半主動控制研究.pdf

1、南京師范大學(xué)碩士學(xué)位論文MR阻尼器驅(qū)動的智能車輛懸架半主動控制研究姓名：應(yīng)亮申請學(xué)位級別：碩士專業(yè)：電工理論與新技術(shù)指導(dǎo)教師：王恩榮20070430南京師范大學(xué)電氣與自動化學(xué)院2004級碩L研究生畢業(yè)論文StudyonSemi—ActiveControlofIntelligentVehicleSuspensionwithMagnetorheologicaldampersABSTRACTSuspensionsystemplaysanimp

2、ortantroleinenhancingvehicleridequalityandhandlingstabilityandreducingtheaccessorydamageduetodynamicloadTheconventionalpassivesuspensionsystemcannotsatisfyalltheaboverequirementsandthuslimitsimprovementofsuspensionperfor

3、mancebecauseconventionalpassivesuspensioncomponentparametersarefixedWhereas，thesemi—activesuspensionsystemCalladapttodifferentoperatingconditionsduetoitsadjustablestructureparameterssuchasspringstiffnessanddampingcoeffic

4、ient，andthushaspotentialinimprovingtheridecomfortandhandlingstabilityThesemiactivesuspensionperformancecouldcloselyfollowthatofafullyactivesuspensionandhasadvantagesofsimplestructureandminimalpowerconsumptionThestudyonse

5、mi—activesuspensioncontrolhasbeenwidelyfocusedbytheinternationalautomobileengineeringindustryThisdissertationdealswiththesemiactivesuspensioncontrolonbasisofproposedMagnetorheological(MR)damperhysteresismodelandthetwo—de

6、greeoffreedom(2DOF)quartervehiclemodelThreesgnli—activecontrolschemesareproposed，suchasmodifiedskyhookscheme，modifiedrelativevelocityscheme，andlimitedrelativedisplacementschemeAseriesofexcitationsignalsandasetofperforman

7、cemeasuresaredefined，andasimulationplatformissetupwithMatlabSimulinktocarryOUttheperformanceevaluationoftheproposeddifferentcontrollers，andsensitivityoftheproposedcontrollerstovariationsinvehicleoperatingloadandroadrough

8、nessandcontrollerparametersarefurtherevaluatedTheresultsillustratethattheproposedmodifiedskyhookbasedsemiactivecontrofierhassuperiorrobustnessandcouldachievedesirablemultibodyvehiclesuspensionperformancesKeywords：Magneto