Injini ye-Lexus HS250h
Okuqukethwe
I-Lexus HS250h iyimoto yohlobo oluxubile eyenziwe e-Japan. Ngokolwazi olusemthethweni, isifinyezo esithi HS simelela i-Harmonious Sedan, okusho ukuthi i-sedan evumelanayo. Imoto yadalwa ngokunakekelwa kwemvelo, kodwa ngesikhathi esifanayo ikwazi ukunikeza amandla amukelekayo okushayela kwezemidlalo. Ukwenza lokhu, i-Lexus HS250h isebenzisa injini evuthayo yangaphakathi enamasilinda amane ehlangene nenjini kagesi.
Incazelo emfushane yemoto
I-hybrid ye-Lexus HS250h yethulwa okokuqala e-North American International Auto Show ngoJanuwari 2009. Imoto yaqala ukudayiswa ngoJulayi 2009 eJapan. Ngemva kwenyanga, ukuthengisa kwaqala e-United States. Imoto ibe ngeyokuqala esigabeni sama-compact sedans kanokusho anesitshalo samandla esixubile.
ILexus HS250h isuselwe kwiToyota Avensis. Imoto inokubukeka okugqamile kanye ne-aerodynamics enhle. Imoto ihlanganisa induduzo enhle kakhulu nokusebenza. Ukushayela ngokuzethemba nokuphatha kahle kunikezwa ukumiswa okuzimele okuguquguqukayo.
Ingaphakathi le-Lexus HS250h lenziwa kusetshenziswa i-bioplastics esekelwe ezitshalweni. Kuhlanganisa imbewu ye-castor kanye nemicu ye- kenaf. Lokhu kwenze kwaba nokwenzeka ukunakekela imvelo nokwenza imoto ibe “luhlaza”. Ingaphakathi livulekile impela, kanti nezihlalo zomshayeli nezabagibeli zikhululekile.
Imoto inama-electronics amaningi asebenza kakhulu. Isilawuli se-multimedia esinolawulo lokuthinta sibonakale silungele ukusetshenziswa. I-centre console inesikrini esihoxiswayo. I-graphical interface yomsebenzisi icatshangelwe ngokugcwele futhi inikeza ukufinyelela ezinhlobonhlobo zezici eziwusizo. Iphedi yokuthinta inempendulo ethintekayo yokusebenziseka okuthuthukisiwe.
I-Comfort ayikho ngaphansi kokuphepha kwe-Lexus HS250h. Isistimu ye-IHB ehlakaniphile ithola ubukhona bezimoto futhi ilungise i-optics ukuvimbela ukuxhopha. I-Adaptive cruise control ene-LKA igcina imoto emzileni wayo. I-Lexus iqapha ukozela komshayeli, ithola izingozi zokushayisana futhi ixwayise ngezithiyo endleleni.
Injini ngaphansi kwe-hood Lexus HS250h
Ngaphansi kwe-hood ye-Lexus HS250h kukhona i-2.4-litre 2AZ-FXE inline-four hybrid powertrain. Injini yakhethwa kucatshangelwa ukuhlinzekwa kwezici ezanele eziguqukayo ngaphandle kokwenyusa izindleko zikaphethiloli. I-ICE kanye ne-torque kagesi yokudlulisa i-CVT ukuze uthole ulwazi lokushayela olubushelelezi. Iyunithi yamandla isebenza kumjikelezo we-Atkinson futhi inikeza ukusheshisa okwamukelekayo ku-sedan.
Injini ye-2AZ-FXE inomsindo omkhulu. Ukuze ushayele ngesivinini esivamile, udinga ukugcina isivinini esiphezulu. Ngesikhathi esifanayo, ukubhonga okuyingqayizivele kuphuma ku-motor, okuyinto ukuhlukaniswa komsindo ayikwazi ukubhekana nayo. Abanikazi bezimoto abakuthandi lokhu kakhulu, ikakhulukazi uma kucatshangelwa ukuthi i-dynamics ayihambisani nevolumu yeyunithi yamandla nhlobo. Ngakho-ke, i-Lexus HS250h ene-2AZ-FXE ifaneleka kakhulu ekulinganisweni kokushayela kwedolobha, lapho iziphatha ngokuthula nangokumnene.
Injini ye-2AZ-FXE ine-aluminium cylinder block. Imikhono yensimbi yokusansimbi ihlanganiswe ezintweni. Zinendawo yangaphandle engalingani, eqinisekisa ukulungiswa kwazo okuqinile futhi ithuthukise ukuchithwa kokushisa. Iphampu kawoyela ye-trochoid ifakwe ku-crankcase. Iqhutshwa iketanga elengeziwe, elibangela ukwehla kokuthembeka kweyunithi yamandla futhi kwandise inani lezingxenye ezihambayo.
Elinye iphuzu elibuthakathaka ekwakhiweni kwemoto amagiya omshini wokulinganisa. Zenziwe nge-polymer material. Lokhu kwanda ukunethezeka nomsindo wenjini, kodwa kwaholela ekungasebenzini kahle njalo. Amagiya e-polymer aguga ngokushesha futhi injini ilahlekelwa ukusebenza kahle kwayo.
Imininingwane yeyunithi yamandla
Injini ye-2AZ-FXE inamapiston ayisiketi esiketi angasindi, izikhonkwane ezintantayo kanye ne-anti-friction polymer coating. I-crankshaft eyenziwe ngomgunyathi ine-offset ehlobene nomugqa wezimbazo zamasilinda. Idrayivu yesikhathi yenziwa ngeketango lomugqa owodwa. Okunye ukucaciswa kungatholakala kuthebula elingezansi.
Izici eziyinhloko zobuchwepheshe zenjini ye-2AZ-FXE
| Ipharamitha | Okushoyo |
|---|---|
| Inani lamasilinda | 4 |
| Inani lama-valve | 16 |
| Ivolumu eqondile | I-2362 cm³ |
| Ububanzi besilinda | 88.5 mm |
| Ukushaya kwesibhamu | 96 mm |
| Amandla | I-130 - 150 HP |
| I-Torque | 142-190 N*m |
| Isilinganiso sokucindezela | 12.5 |
| Uhlobo lwamafutha | Uphethiloli AI-95 |
| Isisetshenziswa esimenyezelwe | 150 km |
| insiza ekusebenzeni | 250-300 ayizinkulungwane km |
Inombolo yenjini ye-2AZ-FXE itholakala ngqo endaweni yesikhulumi ku-cylinder block. Indawo yayo iboniswa ngohlelo esithombeni esingezansi. Ukulandela uthuli, ukungcola nokugqwala kungenza kube nzima ukufunda inombolo. Ukuze uzihlanze, kunconywa ukusebenzisa ibhulashi lensimbi, ama-rags.
Ukwethembeka kanye nobuthakathaka
Injini ye-2AZ-FXE ngeke kuthiwe ithembekile. Inamaphutha amaningi okuklama abangele izinkinga zamazinga ahlukene obunzima. Cishe bonke abanikazi bezimoto babhekene nalokhu:
- isishisi samafutha esiqhubekayo;
- ukuvuza kwepompo;
- ukujuluka kwezimpawu zamafutha kanye nama-gaskets;
- isivinini se-crankshaft esingazinzile;
- ukushisa kwenjini.
Noma kunjalo, inkinga enkulu yezinjini ukubhujiswa okuzenzakalelayo kwemicu ku-cylinder block. Ngenxa yalokhu, amabhawodi ekhanda le-cylinder ayaphuma, ukuqina kuphukile futhi kuvuza okupholisayo kuvela. Esikhathini esizayo, lokhu kungaholela ekwephuleni kwejometri ye-block ngokwayo kanye nekhanda le-cylinder. I-Toyota ivume iphutha lomklamo futhi yathuthukisa izimbobo ezinentambo. Ngo-2011, ikhithi yokulungisa i-threaded bushings yakhululwa ukuze ilungiswe.
Ukugcinwa kwezimoto
Ngokusemthethweni, umenzi akahlinzeki ngokulungiswa okukhulu kweyunithi yamandla ye-2AZ-FXE. Ukugcinwa okuphansi kwezinjini kuvamile ezimotweni eziningi zakwaLexus. 2AZ-FXE kwaba okufanayo, ngakho-ke, uma kwenzeka ukungasebenzi okuphawulekayo, indlela engcono kakhulu yokuxazulula inkinga ukuthenga injini yenkontileka. Ngesikhathi esifanayo, ukugcinwa okuphansi kwe-2AZ-FXE kunxeshezelwa ngokuthembeka okuphezulu kwesitshalo samandla.
Kunobunzima bokuqedwa kwezinkinga ezincane. Izingxenye ezisele zangempela ngokuvamile azitholakali ukuthi zithengiswe. Ngakho-ke, kunconywa ukuphatha injini ngokucophelela. Kubalulekile ukwenza ukunakekelwa ngesikhathi futhi ugcwalise uphethiloli wekhwalithi ephezulu kakhulu.
Tuning izinjini Lexus HS250h
Injini ye-2AZ-FXE ayijwayele ukushuna. Abanikazi abaningi bezimoto batusa ukuqala ukuthuthukiswa ngokufaka enye efanelekayo, isibonelo, i-2JZ-GTE. Lapho unquma ukushuna i-2AZ-FXE, kunezindawo ezimbalwa eziyinhloko:
- ukulungiswa kwe-chip;
- ukwenziwa kwesimanje kwezinhlelo ezihlobene;
- ukulungiswa kwe-surface motor;
- ukufakwa kwe-turbocharger;
- ukungenelela okujulile.
Ukushuna kwe-chip kungakhuphula amandla kancane. Isusa "ukumiswa" kwenjini ngezindinganiso zemvelo embonini. Ukuze uthole umphumela obaluleke kakhulu, ikhithi ye-turbo ifanelekile. Kodwa-ke, ukwanda okuphawulekayo kwamandla kuvinjelwa umkhawulo onganele wokuphepha we-cylinder block.
