Multi-piston disengagement system for a brake device of a vehicle, brake device for a vehicle having a multi-piston disengagement system, and transmission arrangement for a vehicle having the brake device

A multi-piston disengagement system for a vehicle brake device, comprising:

• an annular housing comprising:
• a main axis that defines an axial direction;
• and
• a plurality of housing portions, each of the housing portions comprising a respective pressure chamber and a respective hydraulic actuation assembly;
• and
• a pressure transmission device comprising:
• a connecting rod, wherein the actuating force can be introduced into the connecting rod in the axial direction;
• and
• a holding end plate operatively connected to the connecting rod, wherein:
• each hydraulic actuation assembly comprises a piston assembly comprising a hydraulically movable piston arranged to execute an actuation stroke in the axial direction to generate an actuating force for actuating a brake apparatus of the vehicle brake device;
• the annular housing is arranged to dissipate the actuating force;
• and
• the holding end plate can be transferred into a pressure position for exerting an axially directed pressure force against a disc pack arrangement of the brake apparatus during the actuating stroke to transmit or introduce the actuating force to the disc pack arrangement.

A brake assembly for a transmission arrangement of a vehicle comprising:

• a brake apparatus comprising a disc pack arrangement, the disc pack arrangement comprising a plurality of friction discs;
• and
• a multi-piston disengagement system comprising:
• an annular housing comprising:
• a main axis that defines an axial direction;
• and
• a plurality of housing portions, each of the housing portions comprising a respective pressure chamber and a respective hydraulic actuation assembly, wherein:
• each hydraulic actuation assembly comprises a piston assembly comprising a hydraulically movable piston arranged to execute an actuation stroke in the axial direction to generate an actuating force for actuating the brake apparatus of the vehicle;
• and
• the annular housing is arranged to dissipate the actuating force;
• and
• a fastening interface for fastening the annular housing to a surrounding structure;
• and
• a pressure transmission device comprising:
• a connecting rod, wherein the actuating force from the piston can be introduced into the connecting rod in the axial direction, wherein the connecting rod extends in the axial opposite direction, opposite the axial direction, through the disc pack arrangement;
• and
• a holding end plate operatively connected to the connecting rod, wherein the holding end plate can be transferred into a pressure position for exerting an axially directed pressure force against the disc pack arrangement of the brake apparatus during the actuating stroke to transmit or introduce the actuating force to the disc pack arrangement.