METHOD OF OPERATION AND DEVICE FOR CONTROLLING OR REGULATING FOR A LONG-TERM BRAKING SYSTEM OF A VEHICLE

The invention relates to an operating method for a continuous braking system of a motor vehicle. The invention further relates to a device for controlling or regulating a continuous braking system of a vehicle. The continuous braking system comprises a primary continuous brake and a secondary continuous brake, wherein the primary continuous brake has a first primary continuous braking device for generating an adjustable first brake torque component and a second primary continuous braking device for generating an adjustable second brake torque component, wherein the first compared to the second primary continuous braking device has faster response behavior. By means of the secondary continuous brake, for example in the form of a secondary retarder, a third brake torque component is adjustable. According to the operating method, in a time period after activation of a continuous braking operation and until a continuous brake braking demand after activation of the continuous braking operation exceeds a first threshold value (P1 max) for the first time, the continuous brake braking demand is applied by the first primary continuous braking device (4). The first threshold value (P1 max) is set such that it corresponds to a value that is less than or equal to a maximum brake torque that can be generated by the first primary continuous braking device. Furthermore, after the continuous brake braking demand has exceeded the first threshold value (P1 max) for the first time and as long as the continuous brake braking demand has not yet exceeded a second threshold value after activation of a continuous braking operation, a portion of the continuous brake braking demand exceeding the first threshold value (P1 max) is applied by the secondary continuous brake. The second threshold value (S) is set such that it corresponds to a value that is less than or equal to a brake torque that can be generated at a maximum when the first primary continuous braking device cooperates with the secondary continuous brake.