I-XWD - idrayivu ephambene

Isistimu ye-Saab XWD ivumela i-torque engu-100% ye-torque yenjini ukuthi idluliselwe ngokuzenzakalelayo kuphela kumasondo angaphambili noma angemuva, kuye ngezidingo zokushayela: ngakolunye uhlangothi, ukudonsa kuyathuthukiswa ngisho nasezimeni zokungabambi kahle, ngakolunye uhlangothi, umkhawulo wokuphendula wohlelo lwe-ESP uyanda.

Lolu hlelo lusebenzisa "izinhliziyo" ezimbili: enye ingaphambili ku-transmission ebizwa ngokuthi "i-PTU" (iyunithi yokukhipha amandla), enye etholakala ngemuva ebizwa ngokuthi "i-RDM" (imoduli yokushayela yangemuva), exhunywe nge-shaft. Womabili la mayunithi asebenzisa i-Haldex multi-plate yesizukulwane sesine njengama-torque splitter, futhi ungaba nomehluko wokushelela okulinganiselwe ngemuva uma uceliwe. Ngokungafani nezinhlelo ze-clutch ezivamile ze-viscous (lapho ukudluliselwa kwe-torque ku-axle yangemuva kwenzeka ngemva kwesigaba sokushelela, esiphakamisa izinga lokushisa likawoyela eliqukethwe ku-clutch, okwandisa i-viscosity yayo), ku-XWD amapuleti e-clutch yecala lokudlulisa abamba i-torque yangaphambili. ngokumelene nomunye ngenxa yengcindezi ye-hydraulic futhi isebenze ngokushesha igiya elibuyela emuva. Ngokusho kochwepheshe bakwa-Saab, lokhu kuholela ekwenyukeni ngokushesha kokudonsa nokusheshisa ukusuka lapho umile. Lapho igiya lisebenza, i-torque yenjini isatshalaliswa ngokuqhubekayo phakathi kwama-axles nge-valve endaweni yokudlulisa, ekhulisa noma yehlisa ingcindezi kuma-clutch disc.

Kuyasiza ukugqamisa ukuthi ukuze kuncishiswe ukusetshenziswa kukaphethiloli ezigabeni zomgwaqo omkhulu ngesivinini esingaguquki, kuphela i-5-10% ye-torque yenjini idluliselwa ku-axle yangemuva.