汽车专业英语读译教程 第3版 课件 27-U15TB Layout Design of Battery Electric Commercial Vehicles

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TEXTBLayoutDesignofBatteryElectricCommercialVehicles

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TEXTBLayoutDesignofBatteryElectricCommercialVehicles

本次课学习内容本次课学习目标掌握LayoutDesignofBatteryElectricCommercialVehicles的英文专业词汇训练快速阅读能力，提高阅读速度NEWWORDSgenerous[ˈdʒenərəs]adj.慷慨的;丰富的;充足的functional[ˈfʌŋkʃənl]adj.实用的;功能的;机能的longitudinal[ˌlɒŋɡɪˈtjuːdɪnl]adj.纵的;纵向的;纵观的;经度的transverse[ˈtrænzvɜːs]adj.横(向)的decker[ˈdekə(r)]n.层PHRASESANDEXPRESSIONShigh-voltagepart高压部件electricaccessories电器附件powerbatterypack动力电池组anti-collisionrequirement防撞要求theheightofthecarriage车厢高度axleload轴重Comparedwithbatteryelectricpassengervehicles,thelayoutspaceofbatteryelectriccommercialvehiclesismoregenerous.Thissectionwillbrieflydiscusstheprinciplesandmaincontentsofthevehiclelayoutofbatteryelectriccommercialvehicles.Thevehiclelayoutofbatteryelectriccommercialvehiclesshouldmeettherequirementsofsafety,environmentalprotectionandrelatedregulationsandinternationalpractices,aswellasthecorrespondingfunctionalandperformancerequirements.Theoverallbalanceofthevehicleisthebasisofthevehiclelayout,thedesignshouldputtheuseperformanceinthefirstplace,andthenconsidertheproblemintheorderofmanufacturing,maintenanceandappearance,sothatthevehicleiseasytouse,easytorepair,easytobuildandgoodtolookat.LayoutDesignofBatteryElectricCommercialVehiclesThevehiclelayoutshouldbecoordinatedandfitwiththeshapeidea.Batteryelectriccommercialvehiclesshouldfocusontheperformanceofhigh-voltagepartssuchaswaterproof,dustproofandfireproof,inlinewiththestyleandrequirementsoftheshape,andfullyconsidertheassemblyrequirementsofthebodyandchassisandhigh-voltageparts.Thehigh-voltagepartsofbatteryelectriccommercialvehiclesmainlyconsistofelectricdrivesystem,energystoragedevice,electricaccessories,electriccontrolunit,receivingdeviceandotherrelatedhigh-voltageparts,andthesafeoperationofthevehicleisensuredbytheelectriccontrolunitbetweeneachsystem.LayoutDesignofBatteryElectricCommercialVehicles

Powerbatterypackandotherenergystoragedevicesaccordingtomarketdemandmainlyhavebottommiddlesectionplusrearsectionandtopplusbottomrearsectionlayoutform:bottomshouldbefullyconsideredenergystoragedeviceheatdissipation,insulationneedsandanti-collisionrequirements,topenergystoragedeviceshouldincreasethecorrespondingprotectivecover.Electricaccessories,electriccontrolunitismainlyconcentratedinthevehicleunderthelastrowofseatsandtherearhigh-voltagepartscompartment,theelectriccontrolunitandtherearsurroundshouldensureacertainsafetydistance.Ifthereisareceivingdevice,thereceivingdeviceisgenerallyarrangedontheroofofthevehicle.LayoutDesignofBatteryElectricCommercialVehicles

Thedesignoflow-floororlow-entrybatteryelectricbusshouldcomplywiththenationalstandard,thelayoutofthevehiclehigh-voltagepartsshouldensurethewidthandslopeofthechannelbetweenthewheelcovers,theheightoftheonestepfromthegroundandtheheightofthecarriageandotheroverallspacedesignrequirements.Amongthem,therequirementsforthewidthbetweenthefrontwheelcoversareasfollows.LayoutDesignofBatteryElectricCommercialVehicles

Thedesignoflow-floororlow-entrybatteryelectricbusshouldcomplywiththenationalstandard,thelayoutofthevehiclehigh-voltagepartsshouldensurethewidthandslopeofthechannelbetweenthewheelcovers,theheightoftheonestepfromthegroundandtheheightofthecarriageandotheroverallspacedesignrequirements.Amongthem,therequirementsforthewidthbetweenthefrontwheelcoversareasfollows.Forthelengthoflessthanorequalto9mlow-floor,low-entrybus,thewidthofthechannelbetweenthefrontwheelcoverisgreaterthanorequalto550mm.Forthelengthofmorethan9mlow-floorbus,thewidthofthechannelbetweenthefrontwheelcoverisgreaterthanorequalto800mm.LayoutDesignofBatteryElectricCommercialVehicles

Forthelengthofmorethan9mlow-entrybus,thewidthofthechannelbetweenthefrontwheelcoverisgreaterthanorequalto600mm.Thewidthofthechannelbetweentherearwheelcoversisgreaterthanorequalto500mm;thewidthofthechannelbetweenthewheelcoversshouldbemeasuredintherangefromthefloorsurfaceto1800mmabove.Whenthevehicleisinnormaldrivingqualityandthebodyliftingsystemisnotworking,thechannel'slongitudinalslopeshouldnotexceed8%andthetransverseslopeshouldnotexceed5%.Level-onetreadheightfromthegroundshouldbemeasuredwhenthebodyisinnormaldrivingqualityandplacedonaflathorizontalsurface,thespecificrequirementsareasfollows.Thelevel-onetreadheightfromthegroundofthebuswithlowfloorshouldbelessthanorequalto360mm.LayoutDesignofBatteryElectricCommercialVehicles

Thelevel-onetreadheightfromthegroundofthelow-entrybuswithairsuspensionshouldbelessthanorequalto360mm,andthelevel-onetreadheightfromthegroundwithmechanicalsuspensionshouldbelessthanorequalto380mm.Low-floor,low-entrybuscabinheightrequirementsareshowninTable15-1.Lowfloorareareferstoasinglefloorchannelareawithouttreads.LayoutDesignofBatteryElectricCommercialVehiclesClassificationCabinheightrequirement/mmSingle-deckerbusVehiclelength≤9m≥2000Vehiclelength＞9m≥2200Double-deckerbusLowerlow-floorarea≥1800Upperlow-floorarea≥1680Table15-1Low-floor,low-entrybuscabinheightrequirementsThepowerbatterypackfortypicallayoutofhigh-voltagepartsoflow-floorbatteryelectricvehiclesisgenerallyarrangedatthebottomoftherearsectionandthebottomspaceundertheseatorontheroof,theelectricdrivesystemisarrangedatthebottomoftherearsection,andtheelectriccontrolpartsofthevehiclearearrangedintherearhigh-voltageelectricalpartscompartment.Theelectricdriveaxleschemeisadoptedforbatteryelectriccargovehicles,andthepowerbatterypackcanbearrangedinthemiddleofthetwolongitudinalbeamsoronbothsidesofthechassisandtherearofthecab,andthelayoutofthepowerbatterypackshouldmeettherequirementsofthetoploadingspace,avoidthemovingpartsonthevehiclechassisandconsiderthed