駕駛員—四輪轉(zhuǎn)向汽車閉環(huán)系統(tǒng)運動穩(wěn)定性研究.pdf

1、南京航空航天大學(xué)碩士學(xué)位論文駕駛員—四輪轉(zhuǎn)向汽車閉環(huán)系統(tǒng)運動穩(wěn)定性研究姓名：林棻申請學(xué)位級別：碩士專業(yè)：車輛工程指導(dǎo)教師：趙又群20050401駕駛員一四輪轉(zhuǎn)向汽車閉環(huán)系統(tǒng)運動穩(wěn)定性研究AbstractThevehiclewithfourwheelsteeringsystem(4WS)isstudiedinthispaperThemotionstabilitiesofvehiclewith4WSopenloopsystemanddriv

2、ervehiclewith4WSclosedloopsystemareanalyzedThemainpurposesofthispaperare：1First，atwodegreeoffreedomlinearvehiclemodelwithsteeringangleinputisintroducedThen，theeffectsofdriverareconsideredinthemanipulatecontrolbyGuoKonghu

3、i’sDriverModelAtlast，themodelandthestateequationsofdrivervehiclewith4WSareformulated2Thetraditionalvehicleopen—loopsystemanddrivervehicleclosedloopsystemarecomparativelyanalyzedbasedonmotionstabilitytheoryofdynamicsThen，

4、themotionstabilityofthevehiclewith4WSisstudiedwhenthesteefingratiosarcdifferentbetweenfrontwheelandrearwheel3Byusingunsymmetricalmatrixperturbationmethodanddynamicsystemparametersensitivitymethod，someinherentrelationsare

5、revealedquantitativelyonthemotionstabilityofdrivervehiclewith4WSclosed—loopsystem，whileoneormultiplevehicleparametersvaried4AoptimizationmethodispresentedforsolvingeigenvalueproblemwithunsymmetricalintervalmatricesAndthi

6、smethodisapplledinthestudyofdriverqualificationeffectsonvehiclemotionstabilityInconclusion，someinherentrulesandrelationsofmotionstabilityofvehiclewith4WSopen—loopsystemanddrivervehiclewith4WSclosedloopsystemarerevealedin

7、thispaperItcalldirectthedesignofmotionstabilityoftraditionalvehicleandthevehiclewith4WSThus，vehiclemaneuveringcharacteristicscanalsobeimprovedTheresultsofthispaperalsocanbeappliedintheoptimaldesignofvehicledynamiccontrol