Back to results
US 2019/0054818 A1Published application
Axle Assembly Having an Electric Motor Module and a Shift Mechanism
AssigneeArvinMeritor Technology, LLC
InventorsPedro Garcia, Dhanapal Vittala Raya, Christopher Keeney, Wagner Yukio Hirao, David G. Gonska
Life of this patent
Estimating the term…
Abstract
An axle assembly having an electric motor module, a gear reduction module, and a shift mechanism. The shift mechanism may have a shift collar that may transmit torque from the gear reduction module to a drive pinion. The shift collar may be movable between a first position in which a low range gear ratio is engaged, a second position in which a neutral gear ratio is selected, and a third position in which a high range gear ratio is engaged.
Claims20
An axle assembly comprising:
- an axle housing;
- a differential carrier that is mounted to the axle housing and rotatably supports a differential;
- a differential carrier cover that is mounted to an end of the differential carrier that is disposed opposite the axle housing;
- an electric motor module disposed in the differential carrier between the axle housing and the differential carrier cover;
- a gear reduction module that is disposed adjacent to the differential carrier cover, wherein the gear reduction module transmits torque from the electric motor module to the differential via a drive pinion;
- and
- a shift mechanism that is moveable to selectively engage a low range gear ratio and a high range gear ratio of the gear reduction module.
4 more elements
An axle assembly comprising:
- an axle housing;
- a differential carrier that is mounted to the axle housing and rotatably supports a differential;
- a differential carrier cover that is mounted to an end of the differential carrier that is disposed opposite the axle housing;
- an electric motor module disposed in the differential carrier between the axle housing and the differential carrier cover;
- a gear reduction module that transmits torque from the electric motor module to the differential via a drive pinion that is rotatable about an axis, wherein the gear reduction module is disposed adjacent to the differential carrier cover and includes:
- a sun gear that is operatively connected to the electric motor module and rotatable about the axis;
- a planetary ring gear that is disposed on the differential carrier cover;
- a planet gear that meshes with the sun gear and the planetary ring gear;
- and
- a planet gear carrier that rotatably supports the planet gear;
- and
- a shift mechanism that has a shift collar that transmits torque from the gear reduction module to the drive pinion, wherein the shift collar is moveable between a first position in which a low range gear ratio is engaged, a second position in which a neutral gear ratio is selected, and a third position in which a high range gear ratio is engaged.
9 more elements
Dependencies are inferred from the claim text.