Abathengi beMercedes-Benz kwixesha elizayo baya kuba nenketho yokukhetha phakathi kwee-powertrains ezimbini ezintsha kwi-architecture yezithuthi ezizayo. I-CLA ezayo iya kubonelelwa njengesithuthi sombane esisebenza ngokugqibeleleyo kwaye njengomxube wezoqoqosho.
I-Mercedes-Benz ibeke imigangatho emitsha yokusebenza kakuhle kunye neqonga lobuchwepheshe be-VISION EQXX. Ngoku, inkampani ibandakanya ulwazi oluvela kule projekthi kwiimoto zayo zokuvelisa. Ihamba phambili yindlela entsha yombane we-CLA, imodeli yokuqala esekelwe kwi-Mercedes-Benz Modular Architecture (MMA).
Embindini wolu lwakhiwo lwemoto oluguquguqukayo kunye nokuguquguqukayo yi-skateboard chassis-indibano yomgangatho eyenzelwe iimoto zombane, kubandakanya i-drive ehambelanayo kunye nezixhobo ze-chassis. Nangona i-architecture engundoqo ihlala ihambelana, uyilo lomzimba luya kwahluka. Kwi-US, i-Mercedes-Benz icwangcisa intsapho yeemodeli ezintathu zizonke kwinqanaba lokungena elisanda kuchazwa, kuquka i-CLA njenge-sedan emine kunye neeSUV ezimbini.
I-Mercedes-Benz iya kuqhubeka nokunyusela imodyuli yobukrelekrele ngokuyilwa kwebhodi yokutyibiliza eyoyikisayo kwimodeli yeentsapho ezizayo kwamanye amacandelo. Ngokugxila ekuqhubeni kombane kunye nesoftware yemoto, inkampani iye yandise kakhulu iinzame zayo zophuhliso kwezi ndawo. Oku kuquka ukuvulwa kwamva nje kwe-eCampus eStuttgart-Untertürkheim, iziko lobuchule elinikezelwe kuphuhliso lweeseli kunye neebhetri zezithuthi zombane zexesha elizayo zolu phawu. Injongo kukuphuhlisa indibaniselwano yeekhemikhali ezintsha kunye nokwandisa iinkqubo zokuvelisa iiseli eziphezulu zokusebenza kunye neMercedes-Benz DNA, ukunciphisa iindleko zebhetri ngaphezu kwe-30% kwiminyaka ezayo.
Iinxalenye zophuhliso kunye novavanyo lweemodeli ezintsha ze-MMA zenzeke kwi-Electric Software Hub (ESH). Esi sibonelelo kwiZiko lobuChwephesha beMercedes-Benz (MTC) eSindelfingen sidibanisa iisoftware ezininzi, ihardware, ukuhlanganiswa kwenkqubo kunye nemisebenzi yokuvavanya phantsi kophahla olunye. Yonke inkqubo yokudibanisa yombane/ye-elektroniki yophuhliso lwesithuthi ibonakala ngaphakathi kwe-ESH iqinisekisa ukuba zonke iikhomponenti ze-hardware kunye nezixhobo zesoftware zisebenzisana kakuhle.
Imodeli yokuqala ye-MMA. Ngobuchule bayo obubalaseleyo bamandla, ulwakhiwo lweMMA olubhetyebhetye luphawula inyathelo elilandelayo likaMercedes-Benz elisingise kwikamva lombane ngokupheleleyo. I-Electric Drive Unit (EDU 2.0) ngowokuqala kwisizukulwana esitsha seyunithi yokuqhuba umbane evela kwi-Mercedes-Benz, eyilwe njengenkqubo yemodyuli edibeneyo.
Ngoyena mqhubi uphambili kwi-asi engasemva yokutsaleka kunye nokuphatha okona kulungileyo, iMercedes-Benz ngoku yazisa ulungelelwaniso lokuqhuba ngokwesiko olubonwa ubungakanani obuphakathi kunye nezithuthi zodidi olutofotofo kwicandelo lokungena. Iyunithi yokuqhuba umbane ye-200-kW, ebonisa umatshini wokuvumelanisa osisigxina (PSM) kwi-asi yangemva, yaphuhliswa ngaphakathi kwindlu ngeenjineli zakwaMercedes-Benz.
Iimagnethi ze-rotor zicwangciswe kwi-double-V shape. Olunye uphawu kukujika kwe-stator ngeekhoyili ezoluliweyo. Ngokudibeneyo, la manyathelo anegalelo kumava okuqhuba ngokumangalisayo. I-PSM ikwasebenzisa imathiriyeli yomhlaba enqabileyo kakhulu kunezizukulwana zangaphambili zeemoto, inciphisa ubungakanani bemihlaba enzima enqabileyo ukuya phantse ukuya kuthi ga kwipesenti zero. Amandla ombane asebenza ngokuphezulu abonisa inverter ye-silicon carbide ukuze kusetyenziswe amandla ngokufanelekileyo.
Uyilo lukwabandakanya i-gearbox enesantya ezibini kwi-axle yangasemva, ebonelela ngomdibaniso we-dynamics kunye nokusebenza kakuhle. Isixhobo sokuqala, esinomlinganiselo omfutshane we-11: 1, sibonelela ngokukhawulezisa okubalaseleyo kwasekuqaleni kunye nokusebenza kakuhle ekuqhubeni ezidolophini. Isixhobo sesibini (umlinganiselo wegiya: 5:1) ulungiselelwe unikezelo lwamandla ngesantya esiphezulu kunye nempumelelo ephezulu kuhola wendlela ovumela isantya esiphezulu ukuya kuthi ga kwi-210 km/h (130mph).
Amanqaku okutshintsha axhomekeke kwimeko yokuqhuba kunye nenkqubo yokuqhuba ekhethiweyo. Isilungisi se-intanethi sihlala siziqhelanisa neeparamitha zangoku njengebhetri ye-SoC, ukusebenza kunye neemfuno zomqhubi. Ukutsalwa kufezekiswa ngeenzipho (1st izixhobo) okanye iidiski (2nd
izixhobo). Ukuhanjiswa kune-insulation ekhethekileyo ye-thermal.
Iimodeli ze-4MATIC zixhotyiswe nge-80-kW injini yombane kwi-asi yangaphambili. Ukwandisa ukusebenza kakuhle, le moto ibandakanya inverter yesizukulwana esilandelayo kunye ne-silicon carbide (SiC) kwaye iyilwe njengomatshini wokuvumelanisa ngokusisigxina (PSM). Imoto yombane yangaphambili isebenza njenge-boost drive kuphela xa kufuneka amandla ahambelanayo okanye ukutsalwa. Lo msebenzi wenziwa yiyunithi yokuqhawula (DCU), esetyenziswa nguMercedes-Benz ngoku okokuqala kwiklasi ye-compact. Ukuze usebenze ngakumbi, i-DCU inokuqhawula i-motor yombane kwi-axle yangaphambili ngesantya sombane xa imfuno iphantsi, ukuze i-motor yombane kunye neendawo zokuhambisa zime. Oku kunciphisa ilahleko ye-asi yangaphambili nge-90% kwaye kwandisa uluhlu. Kwimeko ye-Concept CLA Class, oku kuya kuhambelana noluhlu olungaphezulu kweekhilomitha ezingama-750 (466 miles) (WLTP), kunye nokusetyenziswa kwamandla angama-12 kWh/100 km (5.2 mi/kWh).
Le nkqubo esebenza kakuhle kakhulu ikwavumela i-trunk yangaphambili (i-frunk), ngelixa iqinisekisa umgangatho ophezulu wokhuseleko lokuphahlazeka ngokusebenzisa indawo yokugoba echazwe kwangaphambili kwisakhelo. I-EDU iqhagamshelwe kumzimba ngokusebenzisa amanqanaba amabini okuthwala i-elastomer kunye nesakhelo senkxaso esongezelelweyo. Olu lwakhiwo lunabileyo lwesakhelo sokuqhawula ingxolo, phakathi kwezinye izinto, luphumela kwi-NVH egqwesileyo (ingxolo, ukungcangcazela kunye nobungqwabalala).
Amandla ombane asebenza ngokuphezulu axhotyiswe ngesilicon carbide (SiC) inverter ukwenzela ukusetyenziswa kwamandla ngokufanelekileyo. Zombini ulawulo lokuhambisa kunye ne-inverter zidityaniswe kwicandelo elinye. Iyunithi yokuqhuba yakhiwe e-Untertürkheim, apho iMercedes-Benz iphuhlise iinkqubo ezininzi zokuqhuba ezitsha kule minyaka idlulileyo.
I-EDU 2.0 ibetha ibhalansi phakathi kwe-torque ephezulu, isantya esiphezulu kunye nokusebenza kakuhle okungumzekelo, ngakumbi kwiimeko zangempela zokuqhuba. I-torque ephezulu iqinisekisa ukusebenza okuguquguqukayo kokuqhuba, nokuba kujongana nokudlula kwentaba okanye ukutsala iitreyila. Enye inzuzo luyilo olungaqhelekanga lwe-EDU 2.0, olunceda imilinganiselo yangaphakathi kunye nomthamo we-trunk ongasemva.
I-Mercedes-Benz yazisa i-800-volt ye-architecture yombane okokuqala, ukwandisa kokubili ukusebenza kakuhle kunye nokusebenza. Ngokudibana nesizukulwana esitsha sebhetri, le nkqubo inokunciphisa kakhulu ixesha lokutshaja. Ngemizuzu nje eli-10, i-Concept CLA Class inokufumana uluhlu oluya kuthi ga kwiikhilomitha ezingama-300 (iikhilomitha eziyi-186) ngokusebenzisa i-DC yokutshaja ngokukhawuleza. Ngokugxininisa ekusebenzeni kakuhle kwexesha, i-CLA sele igqithise ezinye iimoto zombane ezisondeleyo kwimveliso kwilinge lokurekhoda: Kuvavanyo lweeyure ezingama-24 e-Nardò kumazantsi e-Italiya, imodeli yangaphambi kochungechunge igubungela ngqo iikhilomitha ze-3,717 (iikhilomitha ezingama-2,309) kwiiyure ezingama-24. Ukuhanjiswa kwesantya ezibini kwi-drive ephambili kwi-axle yangasemva akubangeli nje igalelo ekusebenzeni kakuhle, kodwa kukwanika amandla okuqhuba kakhulu.
Iiseli zeprimiyamu yebhetri enomxholo osebenzisekayo wamandla afikelela kwi-85 kWh zinee-anode apho isilicon oxide yongezwa kwigraphite. Xa kuthelekiswa nebhetri yangaphambili kunye ne-graphite anode eqhelekileyo, ubuninzi bamandla egravimetric bufikelela kwi-20% ephezulu. Kwinqanaba leseli, ubuninzi bomthamo wamandla we-cell chemistry yi-680 Wh / l (i-watt-yure / ilitha). Ukusetyenziswa kwemathiriyeli ekrwada kuye kwaphuculwa ngakumbi kwaye kwancitshiswa ukuze kuphuculwe uzinzo, ngakumbi ngokuncipha okubonakalayo kwinxalenye yecobalt.
Inguqulelo yeHybrid. Usapho olutsha oluyimodeli luza kufumaneka kwakhona njenge-hybrid enobuchwephesha be-48-volt kunye nenjini yombane enamandla angama-20 kW okuqhuba adityaniswe kuthungelwano. I-drivetrain esebenza kakhulu yaphuhliswa ziinjineli zeMercedes-Benz eJamani.
Ukudityaniswa okunomtsalane koyilo lwemoto kunye nebhokisi yegiya kunokubalelwa kukusondela kweesilinda kunye nolungiselelo olusecaleni kwemoto yombane edibeneyo. Injini, inverter, kunye nothumelo kunye zenza iyunithi edityanisiweyo kakhulu. Ibhetri esanda kuphuhliswa i-48-volt eneteknoloji ye-lithium-ion inika umxholo wamandla ukuya kwi-1.3 kWh. Uyilo ludityaniswe ngokukodwa ludibanisa iiseli zebhetri kunye ne-DC/DC converter kwinto eyaziwa ngokuba yi-flat pack.
Injini yombane ibonelela ngenkxaso ekrelekrele kuluhlu lwesantya esisezantsi. Iiprofayili zesantya eziqhubekayo zigutyungelwe ngombane, oku kuthetha ukuba le ndlela yokusebenza iya kuphelisa ukusebenza ngokufanelekileyo. Ukuchacha kunye nokukwazi ukuqhuba kuphela ngombane kwizantya zasezidolophini kuphucula ukusebenza kakuhle kwe-drivetrain. Ukongeza, unxweme lombane lunokwenzeka ngesantya ukuya kuthi ga kwi-100 km/h (62 mph). Isici esikhethekileyo: i-injini inokuphinda ihlaziye kuzo zonke iigiya ezisibhozo, ibuyisela ukuya kuma-25 kW amandla.
Ngenxa yeempawu ezongezelelweyo ze-torque ye-injini yokutsha kunye ne-motor yombane, i-torque ephezulu ifezekisiwe kwi-wide speed range. Ukongeza, i-injini yokutsha inokuqalwa ngokupheleleyo ngemoto yombane kunye nokwahlula i-clutch ukuphelisa imfuno ye-pinion starter eqhelekileyo. Umsebenzi wokuqalisa wokumisa wenza ukuba injini iqale phantse ingabonakali kumqhubi.
I-motor yombane kunye ne-inverter idityaniswe kwi-transmission entsha, i-compact kakhulu ye-8-speed dual-clutch transmission (XNUMXF-eDCT). Olu phuhliso lwaziwa njenge-eDCT kuba i-motor yombane idityaniswe kuthumelo kwaye inkqubo yomatshini ilawulwa nge-electrohydraulically. Injini yombane isebenza yomibini imigca yeclutch emibini. Amandla axhunyiwe kwaye anqanyuliwe ngoncedo lwee-clutches ezimbini zokuqhuba kunye ne-clutch yokwahlula. Imilinganiselo yezigaba ezisibhozo ze-gearshift isasazwa ngokubanzi, evumela ukuba iindawo zokusebenza ze-injini ziphuculwe ukusebenza kakuhle.
I-injini yokutsha yi-injini yepetroli esanda kuphuhliswa iMercedes-Benz ezine-cylinder ezine kunye nokufuduswa kweelitha eziyi-1.5. Iyunithi enegama lohlobo lwe-M 252 ye-FAME (Family of Modular Engines) intsapho eyenzelwe uluhlu olubanzi lwezicelo zezithuthi. Iimpawu eziqhelekileyo zosapho lwe-injini ye-FAME ziquka i-aluminiyam yonke i-crankcase enobuchwepheshe be-NANOSLIDE, intloko yesilinda ene-manifold edityanisiweyo ngokuyinxenye kunye ne-turbocharger ene-segment turbine ene-switchable scroll connection. Ezinye iimbalasane zibandakanya umbhobho womoya odibeneyo kunye nenkqubo yokukhupha ebekwe kufutshane ne-injini kuyilo lwebhokisi enye, elungiselelwe imigangatho yokukhupha ixa elizayo.
Ingqikelelo yecompressor yombane yefriji ene-48-volt teknoloji eyamkelwe kwi-M 256 inciphisa amandla ombane kwaye yenza ukuba isithuthi sibe ne-air-conditioning naxa simile kwaye sisebenza kuwo wonke umbane.
I-hybrid drivetrain iya kufumaneka nge-140 kW ephumayo ekusungulweni kwayo e-US idityaniswe nama-20 kW amandla okuqhuba umbane. Inikwe ukufuduka kwe-injini ye-1,496 cm3 (91.1 kwi3), oku kubonisa isiphumo esibonakalayo ilitha nganye. Abathengi baya kuba nokukhetha phakathi kwe-wheel-wheel drive yangaphambili kunye ne-4MATIC yokuqhuba onke amavili.
Ngenxa yezizathu zokusebenza kakuhle, injini yepetroli isebenzisa inkqubo yokutsha esekelwe kumjikelezo weMiller ogcina ukusetyenziswa kwepetroli ephantsi, ngokukodwa kuluhlu lomthwalo oyingxenye-imeko yokuqhubela phambili eqhelekileyo ekusebenziseni imihla ngemihla. Ukuvalwa kwangaphambili okuthelekisayo kweevalvu zokungena kunciphisa ilahleko ye-throttle kwaye kwenza ukuba umlinganiselo ophezulu wokunyanzeliswa kwe-12: 1.
Iyunithi entsha yokuhanjiswa kwe-injini inemilinganiselo edibeneyo kwaye ifakwe ngokunqamlezayo kwisithuthi phakathi kwee-knuckles zokuqhuba. Inzuzo ephambili yinto ekhethekileyo ye-NVH (Ingxolo, iVibration, Harshness). Injini ye-M 252 ngokwemvelo inenzuzo, kuba iMercedes-Benz isebenzisa iisilinda ezine endaweni yesithathu. Ukongeza, i-injini ixhotyiswe ngephakheji ye-NVH ebanzi ebandakanya amagwebu kunye nezigqubuthelo zokunciphisa ukukhutshwa kwengxolo.
Ingqikelelo yokugquma i-bulkhead bulkhead, eqhelekileyo kwiiklasi eziphezulu zezithuthi, iye yandiswa ukuya kwindawo esecaleni ye-A-intsika kunye nomgangatho womgangatho ukuze usebenze nangakumbi.
Umthombo ovela INkongolo yemoto eGreen
Ukuziphendulela: Ulwazi olubekwe ngasentla lunikezelwa yi-greencarcongress.com ngaphandle kwe-Cooig.com. I-Cooig.com ayenzi lumelo kunye neziqinisekiso malunga nomgangatho kunye nokuthembeka komthengisi kunye neemveliso. I-Cooig.com ikhupha ngokucacileyo naliphi na ityala lokwaphulwa kwelungelo lokushicilela umxholo.
