爆胎汽車(chē)動(dòng)力學(xué)及其主動(dòng)安全控制.pdf

1、分類(lèi)號(hào)：U461密級(jí)：公開(kāi)UDC：學(xué)號(hào)：6720150108碩士學(xué)位論文學(xué)位類(lèi)別：工程碩士作者姓名：葉濤學(xué)科、專(zhuān)業(yè)：機(jī)械工程研究方向：汽車(chē)主動(dòng)安全控制指導(dǎo)教師：黃開(kāi)啟教授2018年5月17日爆胎汽車(chē)動(dòng)力學(xué)及其主動(dòng)安全控制爆胎汽車(chē)動(dòng)力學(xué)及其主動(dòng)安全控制DynamicsActiveSafetyControlofTheTireBlowoutVehicleAbstractIIAbstractTheriskoftireblowoutisveryh

2、ighunpredictable.Aftertireblowouttherewillbeobviousyawgooffthecourseeventailtailswingetc.whichseriouslythreatenthelifepropertysafetyofthedriverpassengers.Duetopsychologicalstresslackofdrivingexperienceitisdifficultfthedr

3、ivertomakeaccurateeffectiveresponseintimeoftenexcessiveoperationevenwrongoperation.Atpresenttheactivecontroloftireblowoutvehicleisstillunequippedtothechassisintegratedactivesafetycontrolsystem.Onthebasisoftheexistingacti

4、vesafetycontrolsystemthispaperextendstheactivesafetycontrolofthetireblowoutvehiclethroughthedifferentialbrakingtheactivefrontsteeringsystem.Thefollowingwkhasbeencarriedoutindetail:Accdingtothechangeoftirepressureacterist

5、icparametersduringtireburstthetireblowoutmodelisestablishedbasedonDugofftiremodel.thedynamicmodelofeightdegreeoffreedomtireblowoutvehiclemodelisestablished.Basedontheactivesuspensionsystemthedistributionoftheverticalload

6、ofthecaraftertheblowoutisanalyzedthemathematicalmodeloftheverticalmechanicsofeachwheelisderived.Takingstraightturningasexamplesthedynamicresponsetiremechanicalchangesoftireburstvehicleindifferentpositionsweresimulatedana

7、lyzedrespectively.theacteristicsofvehicledynamicresponseoftireblowoutvehicleindifferentconditionsdifferentpositionsweresummarized.Accdingtotherequirementsofthecontrolsystematwodegreeoffreedomvehiclereferencemodelisestabl

8、ished.theconstraintboundaryofeachtargetvariableisdetermined.Inviewoftheparticularityofbursttirethethresholdofthebursttireisexplainedindetail.Thewheelbrakinglogicofthecontrolsystemthedifferentialbrakingcontrolsystembasedo