Ukudluliswa kwe-DSG okwenziwa ngesandla noma okuzenzakalelayo? Yikuphi ukukhetha?
Lapho ekhetha imoto, umthengi unaka ikakhulukazi injini. Kodwa no-gearbox wudaba olubalulekile ngoba yiwona onqumayo ukuthi amandla enjini azosetshenziswa kanjani okuhlanganisa nokusetshenziswa kukaphethiloli.
Ama-gearbox ajwayele ukuba yizinhlobo ezimbili: manual kanye ne-othomathikhi. Owokuqala yiwo ajwayelekile futhi aziwa kakhulu ngabashayeli. Lezi zokugcina ziyizinhlobo eziningana, kuye ngokuthi umklamo osetshenzisiwe. Ngakho-ke, kukhona ama-hydraulic, aguquguqukayo aqhubekayo kanye nama-gearbox amabili asebenze umsebenzi okhethekile iminyaka eminingana manje. I-gearbox enjalo yaqala ukubonakala emakethe ekuqaleni kwekhulu leminyaka ezimotweni zakwaVolkswagen. Lona wu-gearbox we-DSG (Direct Shift Gearbox). Njengamanje, amabhokisi anjalo asevele ekhona kuzo zonke izimoto zemikhiqizo yokukhathazeka, kuhlanganise ne-Skoda.
I-dual clutch transmission iyinhlanganisela yamandla ashintshwayo kanye nezishintshayo. I-transmission ingakwazi ukusebenza nge-othomathikhi egcwele, kanye nomsebenzi wokushintsha igiya okwenziwa ngesandla. Isici sayo esibaluleke kakhulu sokuklama ama-clutch amabili, i.e. ama-clutch discs, angaba omile (izinjini ezibuthakathaka) noma abe manzi, agijima emanzini okugeza amafutha (izinjini ezinamandla kakhulu). I-clutch eyodwa ilawula amagiya angavamile nangemuva, enye i-clutch ilawula ngisho namagiya.
Kukhona amanye ama-clutch shaft amabili kanye nama-main shafts amabili. Ngakho, igiya eliphezulu elilandelayo lihlala lilungele ukusetshenziswa ngokushesha. Isibonelo, imoto isegiyeni lesithathu, kodwa igiya lesine selikhethiwe kodwa alikakasebenzi. Uma kufinyelelwa ku-torque elungile, i-clutch enenombolo engavamile ebhekene negiya lesithathu iyavuleka bese i-clutch enenombolo elinganayo ivale ukuze ifake igiya lesine. Lokhu kuvumela amasondo e-axle yokushayela ukuthi athole njalo i-torque enjinini. Futhi yingakho imoto igijima kahle kakhulu. Ngaphezu kwalokho, injini isebenza ku-optimum torque range. Ngaphezu kwalokho, kukhona enye inzuzo - ukusetshenziswa kukaphethiloli ezimweni eziningi kuphansi kunasesimeni sokudluliswa kwesandla.
Ake sibheke iSkoda Octavia edume ngenjini kaphethroli engu-1.4 enamandla angu-150 hp. Uma le njini inogearbox ozishintshayo onamagiya ayisithupha, isilinganiso sikaphethiloli sisetshenziswa ngu-5,3 wamalitha kaphethroli ngebanga lika-100 km. Idonsa ngamagiya ayisikhombisa iDSG isebenzisa uphethiloli ongu-5 litres. Okubaluleke nakakhulu ukuthi injini enalokhu kudluliswa kwayo idla uphethiloli omncane edolobheni. Endabeni ye-Octavia 1.4 150 hp ngebanga lika-6,1 km ingu-100 litres uma iqhathaniswa no-6,7 litres ezishintshayo.
Umehluko ofanayo utholakala ezinjinini zikadizili. Isibonelo, i-Skoda Karoq 1.6 TDI 115 hp. edonsa ngamagiya ayisithupha ashintshwayo idla isilinganiso samalitha kadizili angu-4,6 ku-100 hp. (edolobheni 5 l), kanye nokudluliselwa kwe-DSG ngamagiya ayisikhombisa, ukusetshenziswa kukaphethiloli okumaphakathi kuphansi ngo-0,2 l (edolobheni ngo-0,4 l).
Okuhle ngokungangabazeki ngama-transmission e-DSG wukunethezeka komshayeli okungadingeki ukuthi ashintshe amagiya ngesandla. Inzuzo yalokhu kudlulisa iphinde ibe nezindlela ezengeziwe zokusebenza, kuhlanganisa. Imodi yezemidlalo, eyenza kube nokwenzeka ukufinyelela ngokushesha i-torque ephezulu kusuka enjini ngesikhathi sokusheshisa.
Ngakho-ke, kubukeka sengathi imoto ene-DSG kufanele ikhethwe umshayeli oshayela amakhilomitha amaningi esiminyaminya sedolobha. Ukudluliswa okunjalo akufaki isandla ekwandeni kokusetshenziswa kukaphethiloli, futhi ngesikhathi esifanayo kulula lapho ushayela esiminyaminyeni sezimoto.
