XWD - mai juyawa
Tsarin Saab XWD yana ba da damar 100% na ƙarfin injin ɗin za a iya canja shi gaba ɗaya ta atomatik zuwa ƙafafun gaba ko na baya kawai, gwargwadon buƙatun tuƙi: a gefe guda, ana inganta ƙwanƙwasawa ko da a cikin yanayin rashin ƙarfi, a gefe guda, Ana ƙara ƙofar amsa ESP.
Tsarin yana amfani da "zukata" guda biyu: ɗaya a gaban watsawa da ake kira PTU (Unit Power-Off Unit), ɗayan yana a bayan da ake kira "RDM" (Module Rear Drive), wanda aka haɗa ta hanyar rami. Duk waɗannan samfuran suna amfani da faifan faranti na Haldex na ƙarni na huɗu azaman masu raba ƙarfi, kuma akan buƙata, zaku iya shigar da bambance-bambancen zamewa a baya. Sabanin tsarin kama -karya na al'ada (wanda ake watsa juzu'i zuwa axle na baya bayan lokacin zamewa, wanda ke haɓaka zafin mai da ke ƙunshe a cikin kama, wanda ke ƙaruwa da ɗimbin ɗimbin ɗimbin ɗimbin ɗimbin ɗimbin ɗimbin yawa), faya -fayan akwatunan ƙulla ƙulli na XWD suna riƙe da fitilun gaban gaba da kowane sauran ta matsi na hydraulic kuma nan da nan kunna kayan juyawa. A cewar masu fasahar Saab, wannan yana haifar da hauhawar hanzari da hanzari daga tsayawa. Lokacin da aka haɗa kayan aiki, ana ci gaba da rarraba injin injin tsakanin axles ta bawul a cikin yanayin canja wuri, wanda ke ƙaruwa ko rage matsin lamba akan faifan kama.
Yana da amfani don jaddada cewa don rage yawan amfani da mai a kan sassan babbar hanya tare da saurin gudu, kawai 5-10% na juzu'in injin ana jujjuya shi zuwa gatari na baya.
