UNIT 25

UNIT 25

ID:78896130

大小:147.50 KB

页数:28页

时间:2022-02-06

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1、TEXTONEApteraiscertainlynotthesortofnameanold-schoolcarmakerwouldgivetoitsnewestcreation.Biologistswillrecogniseitasthetermforscuttlingwinglessinsects—silverfishandsuchlike.ButSteveFambro,thebossoftheeponymousCaliforniancompanythatplanstomakeandsellelectricvehicle

2、sunderthisname,hopestheywillsoonbeswarmingoverthestate'shighways.UnlikeTesla,anotherboutiqueelectric-vehiclemakerfromtheGoldenState,Apteraisaimingforthebottomendofthemarket.ATeslasportscarwillsetyouback$98,000(oritwouldifyoucouldgetyourhandsonone:Teslahasdelayedsh

3、ipmentofitsfirst50carsuntilnextyear).AnAptera,bycontrast,startsat$26,900,andshouldbeavailablethistimenextyear.AndinsteadofaFerrariknock-off,yougetaspace-agetricycle.ButApteraandTeslahavethingsincommon.Theyarebothsmall.Theywerebothstartedbypeoplewithnoexperienceint

4、hemotorindustry.Andtheyarebothaimingtostartbyropingintheeco-fashionistasofCalifornia,andthenworkoutwardstothemainstream.ThenameApterawaschosenbecausethevehicleresemblesasmall,winglessaircraft.Itsthree-wheeldesignexemptsitfromonerousfederaltestingregulations.Theout

5、ershellismadeofacarbon-fibrecomposite,ratherthanmetal.Thelinesarewind-tunnelaerodynamic.Andprotuberancesarekepttoaminimum.Wingmirrors,forexample,arereplacedbyarear-facingcamerawitha180°fieldofviewandtheexhaustvalvesarerecessedtominimiseturbulence.Inthepureplug-inv

6、ersion,thosevalvesareforwasteheatfromtheelectronics.Thereisalsoapetrol-electrichybrid,withasingle-cylindergeneratorthatextendstherangefrom200kmto1,130km.Topspeedis150kph.OnereasonfortheemergenceoffirmssuchasApteraisthatdesigninganewvehiclehasbecomeasmuchanexercise

7、insoftwaresimulationasinmetal(orevencarbon-fibre)bashing.Thatenablesthefirm'sengineerstodoextensivedevelopmentwork—eventhingslikecrash-testing—onacomputer.Thisismuchcheaperthanbuildingendlessprototypesanddrivinglotsofthemintowalls.Anotherreasonisthewidespreadavail

8、abilityofpreviouslyspecialisedcomponentssuchaslithium-ionbatteries.ThatmeansthatanupstartsuchasApteracanfocusontheelectronicbrainsofthevehicleanditsfina

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