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US 2020/0047615 A1Published application
Drive axle system having a planetary interaxle differential unit
AssigneeArvinMeritor Technology, LLC
InventorsDale Eschenburg, Brian D. Hayes, Robert J. Martin, Phillip Leicht, Pedro Garcia, Christopher Keeney
Life of this patent
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Abstract
A drive axle system having a planetary interaxle differential unit. A shift collar may be movable along an axis between a first position and a second position. The shift collar may operatively connect a sun gear to a drive pinion when in the first position. The shift collar may operatively connect the sun gear to a planet carrier when in a second position.
Claims20
A drive axle system having a drive axle assembly comprising:
- an input shaft that is rotatable about an axis;
- a drive pinion is spaced apart from the input shaft;
- an output shaft that extends through the drive pinion;
- an interaxle differential unit configured to operatively connect the input shaft to the drive pinion and the output shaft, wherein the interaxle differential unit includes:
- a planet carrier that is rotatable about the axis with the input shaft;
- a planetary ring gear that is rotatable about the axis with the output shaft;
- a sun gear that is rotatably disposed on the drive pinion;
- and
- a planet gear that is rotatably disposed on the planet carrier and meshes with the planetary ring gear and the sun gear;
- and
- a shift collar that is moveable along the axis between a first position in which the shift collar operatively connects the sun gear to the drive pinion and a second position in which the shift collar operatively connects the sun gear to the planet carrier.
8 more elements
A drive axle system comprising:
- a first drive axle assembly that includes:
- a first differential that is coupled to an axle shaft;
- a drive pinion that is rotatable about an axis and engages the first differential;
- an input shaft that is rotatable about the axis;
- an output shaft that is spaced apart from the input shaft and the drive pinion;
- an interaxle differential unit that is spaced apart from the drive pinion, wherein the interaxle differential unit includes:
- a planet carrier that is rotatable about the axis with the input shaft;
- a planetary ring gear that is coupled to the output shaft such that the output shaft is rotatable about the axis with the planetary ring gear;
- a sun gear that is rotatably disposed on the drive pinion;
- and
- a planet gear that is rotatably disposed on the planet carrier and meshes with the planetary ring gear and the sun gear;
- and
- a shift collar that is moveable along the axis between a first position in which torque is transmitted between the interaxle differential unit and the first differential and between the interaxle differential unit the output shaft and a second position in which torque is not transmitted between the interaxle differential unit and the first differential.
10 more elements
Dependencies are inferred from the claim text.