ELECTRIC DRIVE MOTOR AXLE WITH INTEGRATED REDUCTION AND DIFFERENTIAL GEARSET

摘要

A drive axle (32) adapted for use in hybrid vehicles and having an electric motor (58) and a gearbox (68) packaged within a common housing assembly (50). The gearbox (68) includes a differential assembly (72) driven by a planetary-type reduction unit (70). The reduction unit (70) includes a first planetary gearset having a first sun gear (74) driven by the motor (58), a first ring gear (76), and a set of first planet gears (80) meshed with the first sun gear (74) and the first ring gear (76). A first planet carrier (78) is non-rotatably fixed to a stationary number and rotatably supports the first planet gears (80). A second planet gearset includes a second sun gear (90) fixed for rotation with the first ring gear (76), a second ring gear (92) non-rotatably fixed to the stationary member, and a set of second planet gears (96) rotatably supported from a second planet carrier (94) and which mesh with the second sun gear (90) and the second ring gear (92).