FULL-TIME ALL-WHEEL DRIVE POWER TAKE-OFF UNIT FOR MOTOR VEHICLE

摘要

A full-time all-wheel drive system for a motor vehicle equipped with a transversely mounted engine (12) and transaxle includes a power take-off unit (16). The power take-off unit includes an interaxle differential (46) which drives a first power path (18) connected to the front wheels and a second power path (20) connected to the rear wheels. The first power path includes a planetary final drive unit (74) which drives a double planetary front differential unit (76) that is interconnected to a pair of front axleshafts. The second power path includes a helical gearset (122, 124, 126) and a bevel gearset (136, 142) which deliver power to a rear propshaft (28).