| US 7,510,041 B2 | ||
| Drive axle assembly with torque vectoring drive mechanism | ||
| Thomas C. Bowen, Rochester Hills, Mich. (US) | ||
| Assigned to Magna Powertrain USA, Inc., Troy, Mich. (US) | ||
| Filed on Aug. 13, 2007, as Appl. No. 11/891,843. | ||
| Application 11/891843 is a continuation of application No. 10/846859, filed on May 14, 2004, granted, now 7,258,187. | ||
| Prior Publication US 2007/0289797 A1, Dec. 20, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B60K 17/344 (2006.01); F16H 48/06 (2006.01) | ||
| U.S. Cl. 180—248 [180/245; 180/246; 180/249; 475/248; 475/249] | 31 Claims |
| 1. A motor vehicle, comprising:
a powertrain operable for generating drive torque;
a primary driveline for transmitting drive torque from said powertrain to first and second primary wheels;
a secondary driveline for selectively transmitting drive torque from said powertrain to first and second secondary wheels,
said secondary driveline including an input shaft driven by said powertrain, a first axleshaft driving said first secondary
wheel, a second axleshaft driving said second secondary wheel, and a drive mechanism for selectively coupling said input shaft
to one or both of said first and second axleshafts, said drive mechanism including a drive component driven by said input
shaft and first and second drive units operably disposed between said drive component and said first and second axleshafts,
said first drive unit including a first gearset and first and second mode clutches, said first gearset including a first input
member driven by said drive component, a first output member driving said first axleshaft and a first reaction member, said
first mode clutch is operable to selectively brake rotation of said first reaction member and said second mode clutch is operable
to selectively couple said first reaction member for rotation with one of said first input member and said first output member,
said second drive unit including a second gearset and third and fourth mode clutches, said second gearset including a second
input member driven by said drive component, a second output member driving said second axleshaft and a second reaction member,
said third mode clutch is operable to selectively brake rotation of said second reaction member and said fourth mode clutch
is operable to selectively couple said second reaction member for rotation with one of said second input member and said second
output member; and
a control system for controlling actuation of said mode clutches.
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