Method for actuating a decoupling unit
AssigneeSchaeffler Technologies AG & Co. KG
InventorMarco Grethel
Life of this patent
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Abstract
The disclosure relates to a method for actuating a decoupling unit in a powertrain which comprises at least one driven axle. The aim of the disclosure is to simplify the actuation of the decoupling unit. This is achieved in that the decoupling unit is passively actuated in an actuation direction using an actuation force, which is provided in a hydraulic system, via a first hydraulic functional surface, and the decoupling unit is passively actuated in a restoring direction using a restoring force via a second hydraulic functional surface.
Claims18
A method for actuating a decoupling unit in a drive train which comprises at least one driven axle, the method comprising:
- actuating the decoupling unit with an actuation force present in a hydraulic system in an actuation direction via a first hydraulic functional surface, and
- actuating the decoupling unit with a restoring force in a restoring direction via a second hydraulic functional surface, the restoring force generated by two transmission elements, wherein a hydraulic resistance is arranged in a tank line of each of the two transmission elements to generate the restoring force, and the tank line is configured to be continuously connected to a tank.
A method for actuating a decoupling unit configured to deactivate a driven axle within a drive train of a vehicle, the method comprising:
- providing a hydraulic system including:
- a first actuating branch comprising a first clutch or brake,
- a second actuating branch comprising a second clutch or brake,
- a decoupling unit,
- a first OR valve,
- a second OR valve, and
- actuating the decoupling unit via the first OR valve with a hydraulic actuation force present within the hydraulic system configured to actuate the first clutch or brake or the second clutch or brake, and
- actuating the decoupling unit with a hydraulic restoring force via the second OR valve.
A method for actuating a decoupling unit in a drive train which comprises at least one driven axle, the method comprising:
- actuating the decoupling unit with an actuation force present in a hydraulic system in an actuation direction via a first hydraulic functional surface, and
- actuating the decoupling unit with a restoring force in a restoring direction via a second hydraulic functional surface, wherein the restoring force is provided via a tank line of a drive train element arranged within the hydraulic system, and the tank line is configured to be continuously connected to a tank.
Dependencies are inferred from the claim text.