XWD - transverse drive

Iyo Saab XWD system inobvumira 100% yeinjini torque kuendeswa zvizere otomatiki kumberi kana kumashure mavhiri chete, zvichienderana nezvinodiwa pakutyaira: kune rumwe rutivi, traction inovandudzwa kunyangwe mune yakashata traction mamiriro, kune rimwe divi, iyo ESP mhinduro mbiru inowedzerwa.

Iyo sisitimu inoshandisa maviri "moyo": imwe iri kumberi kwekutapurirana kunonzi PTU (simba rekutora-off unit), imwe iri kumashure inonzi "RDM" (rear drive module), yakabatana kuburikidza neshaft. Ose ari maviri mamodules anoshandisa chizvarwa chechina Haldex akawanda-ndiro maclutches se torque dividers, uye pakukumbira, unogona kuisa yakasarudzika-inotsvedza musiyano kumashure. Kusiyana neyakajairika viscous clutch masystem (mune torque inopfuudzwa kune yekumashure ekisero mushure mekutsvedza chikamu, icho chinokwidza tembiricha yemafuta ari mune iyo batira, iyo inowedzera yayo viscosity), iyo XWD yekuchinjisa kesi clutch discs inobata kumberi torque kurwisa imwe neimwe imwe ne hydraulic kumanikidza uye nekukasira ita reverse gear. Sekureva kwevanyanzvi veSaab, izvi zvinoguma nekuwedzera nekukasira kwekukweva uye kumhanyisa kubva pakamira. Kana giya rikabatanidzwa, injini torque inoenderera ichigovaniswa pakati peasi nemavhavha mune yekufambisa kesi, iyo inowedzera kana kudzikisira kumanikidza pane clutch discs.

Izvo zvinobatsira kusimbisa kuti kuitira kudzikisa kushandiswa kwemafuta pazvikamu zvemumugwagwa nekumhanyisa nguva, chete 5-10% yeinjini torque inoendeswa kumberi ekisero.