Torque vectoring axle assembly

Details Torque vectoring axle assembly Torque vectoring axle assembly

2007-09-11

2007-09-11

Ho, Ha D. (Department: 3681)

Planetary gear transmission systems or components

Differential planetary gearing

Differential or nondifferential planetary combined with...

C475S225000, C475S249000

Reexamination Certificate

active

11226993

ABSTRACT:
A drive axle assembly includes first and second axleshafts connected to a pair of wheels and a drive mechanism operable to selectively couple a driven input shaft to one or both of the axleshafts. The drive mechanism includes a differential, a speed changing unit operably disposed between the differential assembly and the first and second axleshafts, first and second mode clutches and a brake unit. The first mode clutch is operable to increase the rotary speed of the first axleshaft which, in turn, causes a corresponding decrease in the rotary speed of the second axleshaft. The second mode clutch is operable to increase the rotary speed of the second axleshaft so as to cause a decrease in the rotary speed of the first axleshaft. The brake unit is operable to engage the speed changing unit. A control system controls actuation of both mode clutches.

REFERENCES:
patent: 672620 (1901-06-01), Buffum
patent: 856703 (1907-06-01), Iversen
patent: 1382289 (1921-06-01), Janicki
patent: 1954686 (1934-04-01), Stickney
patent: 1964956 (1934-07-01), Lincoln
patent: 2466683 (1949-04-01), Buckendale
patent: 3690426 (1972-09-01), Weisgerber
patent: 6607061 (2003-08-01), Hori et al.
patent: 7175557 (2007-02-01), Kirkwood et al.
patent: 7175558 (2007-02-01), Puiu et al.
patent: 11-105573 (1999-04-01), None

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