BRAKE SYSTEM WITH VARIABLE FRICTION

The invention relates to a brake system 100 of an elevator, of an escalator or of a moving walkway, which brake system 100 comprises a brake device 101 with at least one brake pad 111. The brake pad 111 has an active surface 116 which, during a braking operation, is pressed against a friction surface 121, which moves or is movable relative to the active surface 116, of a counterpart 120. The brake system 100 furthermore has a supply device 103 which is fed by a fluid source 102. By means of the supply device 103, a fluid 154 can be supplied between the active surface 116 of the brake pad 110 and the friction surface 121 facing said active surface. The friction between the active surface 116 and the friction surface 121 can be influenced by means of the supply of the fluid 154.