IP Library Granted Patent US 8,672,793
Granted Patent B2
US 8,672,793 · App. 12/247,578 · Granted Mar 18, 2014

Drive device for motor vehicles

Inventor: Ulrich Freudling (Ingolstadt, DE)
Assignee: Audi AG
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Quick Facts
Patent No.
US 8,672,793
App. No.
12/247,578
Granted
Mar 18, 2014
Kind
B2
Abstract

The invention relates to a drive device for motor vehicles with at least one longitudinal output or transverse output differential gear, with an input shaft, and with a means for controlled torque distribution to the two output shafts. A quick-response, structurally advantageous drive device is thus achieved in that the differential gear is a self-locking differential gear and in that a speed-regulation drive, which changes the differential-side speed of 1:1 in the plus or minus direction based on dynamic performance parameters, is integrated into one of the output shafts, or in that speed-regulation drives, which alternately change the differential-side speed of 1:1 in the plus direction or in the negative direction based on dynamic performance parameters, are integrated into two output shafts.

Claims (8)

1. A driveline for an all-wheel drive of a motor vehicle, comprising:

an intermediate axle differential having a longitudinally disposed hollow input shaft drivingly connectable to the motor of said vehicle, a first output shaft extending through said hollow input shaft and a second output shaft; and

a variable speed regulator integrated into one of said output shafts.

2. The driveline according to claim 1 wherein the speed change range of said regulator is 0.8 to 1.2.

3. The driveline according to claim 1 wherein the speed change range of said regulator is 1.0 to 1.2.

4. The driveline according to claim 1 wherein said regulator is functional to vary the speed of the associated output shaft.

5. The driveline according to claim 1 wherein said regulator comprises a variable continuous-belt drive.

6. The driveline according to claim 1 wherein said differential is a torque sensing differential.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2008
From: FREUDLING, ULRICH
To: AUDI AG
Reel/Frame 021992/0302 →
Priority Claims (1)
DE 10 2007 048 649 · Oct 10, 2007 · national
Continuity (1)
Related Publication 20090098973A1 · Apr 16, 2009