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US 2022/0389975 A1Published application
Vehicle transmission with disconnect devices
AssigneeDana Belgium N.V.
InventorsFilip D. SCHACHT, Kurt CATTOOR
Life of this patent
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Abstract
Methods and systems for a vehicle transmission are provided herein. The vehicle transmission includes an input interface configured to mechanically couple to a motive power source. The vehicle transmission further includes a first disconnect device releasably mechanically coupling a first output to a first drive axle and a second disconnect device releasably mechanically coupling a second output to a second drive axle.
Claims20
A vehicle transmission, comprising:
- an input interface configured to mechanically couple to a motive power source;
- a first disconnect device releasably mechanically coupling a first output to a first drive axle;
- and
- a second disconnect device releasably mechanically coupling a second output to a second drive axle.
1 more element
A vehicle transmission, comprising:
- a first disconnect device including:
- a splined sleeve mated with a first output shaft that is configured to rotationally couple to a first drive axle;
- and
- a hydraulic actuation system including a hydraulic actuator coupled to the splined sleeve, wherein the hydraulic actuator is configured to axially translate the splined sleeve in opposing directions to place the hydraulic actuator in an engaged configuration and a disengaged configuration;
- wherein, in the engaged configuration, the splined sleeve mates with a splined transmission shaft;
- and
- wherein the hydraulic actuation system is configured to automatically transition the hydraulic actuator into the engaged configuration responsive to a hydraulic pressure in the hydraulic actuation system decreasing below a threshold value.
4 more elements
A method for operation of a vehicle transmission, comprising:
- automatically operate a disconnect device to mechanically decouple a drive axle from the vehicle transmission when a pressure in a hydraulic actuation system coupled to the disconnect device decreases below a threshold value;
- wherein the disconnect device includes a splined sleeve mated with an output shaft that is configured to rotationally couple to a drive axle;
- wherein the hydraulic actuation system comprises a hydraulic actuator coupled to the splined sleeve;
- and
- wherein the hydraulic actuator is configured to axially translate the splined sleeve in opposing directions to place the hydraulic actuator in an engaged configuration and a disengaged configuration.
2 more elements
Dependencies are inferred from the claim text.