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1、外文文献Alongwithautomobileelectronictechnologyswiftandviolentdevelopment,thepeoplealsodaybydayenhancetothemotorturninghandlingqualityrequest.Themotorturningsystemchanged,thehydraulicpressureboostfromthetraditionalmachinerychanges(HydraulicPowerSteering,iscalledHPS),theelectricallycontrolledhydraulicpr
2、essureboostchanges(ElectricHydraulicPowerSteering,iscalledEHPS),developstheelectricallyoperatedbooststeeringsystem(ElectricPowerSteering,iscalledEPS),finallyalsowilltransittothelinecontrolsthesteeringsystem(SteerByWire,willbecalledSBW).Themachinerysteeringsystemisrefersbypilot'sphysicalstrengthachi
3、evementchangestheenergy,inwhichallpowertransmissionallismechanical,theautomobilechangesthemovementisoperatesthesteeringwheelbythepilot,transmitsthroughthediverterandaseriesofmemberschangesthewheeltorealize.Themechanicalsteeringsystembychangesthecontrolmechanism,thediverterandmajorpartchangesthegear
4、ing3tobecomposed.Usuallymaydivideintoaccordingtothemechanicaldiverterform:Thegearracktype,followsroundtheworld-like,thewormbearingadjusterhooptype,thewormbearingadjusterreferssellsthetype.Isthegearracktypeandfollowsusingthebroadesttwokindsroundtheworld-like(usesinneedingtimebigsteeringforce).Infoll
5、owsroundtheworld-likeinthediverter,theinputchangesthecircleandtheoutputsteeringarmpivotangleisproportional;Inthegearracktypediverter,theinputchangestheturnandtheoutputrackdisplacementisproportional.Followsroundtheworld-likethediverterbecauseistherollingfrictionform,thusthetransmissionefficiencyisve
6、ryhigh,theeaseofoperationalsotheservicelifearelong,moreoverbearingcapacity,thereforewidelyappliesonthetruck.Thegearracktypediverterwithfollowsroundtheworld-likecompares,themostmajorcharacteristicistherigidityisbig,thestructurecompactweightislight,alsothecostislow.Becausethiswaypassesoneasilybythewh
7、eelthereactingforcetothesteeringwheel,thereforehastothepavementbehaviorresponsekeenmerit,butsimultaneouslyalsoeasytohavephenomenaandsoongoonandoscillation,alsoitsloadbearingefficiencyrelativeweak,thereforem