Coupling assembly and driveline assembly

A driveline assembly for a motor vehicle, comprising:

• a permanently drivable first driveline with a first driving axle;
• an optionally drivable second driveline with a second driving axle;
• wherein the second driveline comprises a first coupling assembly, a second coupling assembly and a driveshaft which is arranged in the power transmission path between the first and the second coupling assembly,
• wherein at least one of the first and the second coupling assemblies comprises:
• a first shaft;
• a second shaft;
• a coupling arranged to selectively drivingly connect or disconnect the first shaft and the second shaft;
• a brake arranged to brake the second shaft relative to a stationary component;
• and
• an actuating device to actuate the coupling and the brake;
• wherein the actuating device comprises a ramp mechanism having a first ring that is axially supported relative to the stationary component, and a second ring that is axially movable relative to the first ring when one of the first and second rings is rotated relative to another one of the first and second rings;
• wherein the actuating device is configured such that the brake is not actuated until the coupling has at least partially been opened.