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1、外文文献Alongwithautomobileelectronictechnologyswiftandviolentdevelopment,thepeoplealsodaybydayenhancetothemotorturninghandlingqualityrequest.Themotorturningsystemchanged,thehydraulicpressureboostfromthetraditionalmachinerychanges(HydraulicPowerSteering,iscalledHPS),theelectricallycontr
2、olledhydraulicpressureboostchanges(ElectricHydraulicPowerSteering,iscalledEHPS),developstheelectricallyoperatedbooststeeringsystem(ElectricPowerSteering,iscalledEPS),finallyalsowilltransittothelinecontrolsthesteeringsystem(SteerByWire,willbecalledSBW).Themachinerysteeringsystemisref
3、ersbypilot'sphysicalstrengthachievementchangestheenergy,inwhichallpowertransmissionallismechanical,theautomobilechangesthemovementisoperatesthesteeringwheelbythepilot,transmitsthroughthediverterandaseriesofmemberschangesthewheeltorealize.Themechanicalsteeringsystembychangesthecontro
4、lmechanism,thediverterandmajorpartchangesthegearing3tobecomposed.Usuallymaydivideintoaccordingtothemechanicaldiverterform:Thegearracktype,followsroundtheworld-like,thewormbearingadjusterhooptype,thewormbearingadjusterreferssellsthetype.Isthegearracktypeandfollowsusingthebroadesttwok
5、indsroundtheworld-like(usesinneedingtimebigsteeringforce).Infollowsroundtheworld-likeinthediverter,theinputchangesthecircleandtheoutputsteeringarmpivotangleisproportional;Inthegearracktypediverter,theinputchangestheturnandtheoutputrackdisplacementisproportional.Followsroundtheworld-
6、likethediverterbecauseistherollingfrictionform,thusthetransmissionefficiencyisveryhigh,theeaseofoperationalsotheservicelifearelong,moreoverbearingcapacity,thereforewidelyappliesonthetruck.Thegearracktypediverterwithfollowsroundtheworld-likecompares,themostmajorcharacteristicistherig
7、idityisbig,thestructurecompactweightislight,alsothecostislow.Becausethiswaypassesoneasilybythewheelthereactingforcetothesteeringwheel,thereforehastothepavementbehaviorresponsekeenmerit,butsimultaneouslyalsoeasytohavephenomenaandsoongoonandoscillation,alsoitsloadbearingefficiencyrela
8、tiveweak,thereforem
