Method for controlling motor vehicle service brake device and service brake valve device for the service brake device

The invention relates to a method for controlling a pneumatic or electro-pneumatic service brake device of a vehicle. In the method, driver brake request occurs by actuating a service brake actuating element (10) of a service brake valve device (1) of the braking device. By actuating the service brake actuating element (10), at least one control piston (4, 12) of the service brake valve device (1) is charged with a first actuating force, and the control piston (4, 12) directly or indirectly controls at least one double seat valve (34) of the service brake valve device (1), comprising an inlet seat (64) and an outlet seat (32), in order to generate a pneumatic brake pressure or brake control pressure in at least one pneumatic service brake circuit of the service brake device. According to the method, the at least one control piston (4, 12) of the service brake valve device (1) is charged, in addition to the first actuation force, additionally by a second actuation force or instead of the first actuation force,