Method for defining at least one characteristic curve which, in a pressure-actuated brake system of a vehicle, represents a relationship between a brake pressure (p) and a brake demand (a soll), comprising at least the following steps: a) specifying a brake demand value range for the brake demand (a soll), which includes a minimum brake demand, a maximum brake demand, and intermediate values between the minimum brake demand and the maximum brake demand, b) specifying a brake pressure value range for the brake pressure (p), which includes a minimum brake pressure, a maximum brake pressure and intermediate values between the minimum brake pressure and the maximum brake pressure, b1) defining a support point of the characteristic curve, at which a brake demand limit value and a specific brake pressure are associated with each other, wherein the brake demand limit value lies within the brake demand value range and is greater in amount than the amount of the minimum brake demand but less than the amount of the maximum brake demand, and wherein the specific brake pressure lies within the brake pressure value range and is equal to the maximum brake pressure, b2) defining another support point that assigns the maximum brake pressure and the maximum brake demand to each other, b3) defining a characteristic curve section of the characteristic curve, which extends between the support point and the another support point, and which automatically assigns the maximum brake pressure to each brake request (a soll) in a brake demand range. a) specifying a brake demand value range for the brake demand (a soll), which includes a minimum brake demand, a maximum brake demand, and intermediate values between the minimum brake demand and the maximum brake demand, b) specifying a brake pressure value range for the brake pressure (p), which includes a minimum brake pressure, a maximum brake pressure and intermediate values between the minimum brake pressure and the maximum brake pressure, b1) defining a support point of the characteristic curve, at which a brake demand limit value and a specific brake pressure are associated with each other, wherein the brake demand limit value lies within the brake demand value range and is greater in amount than the amount of the minimum brake demand but less than the amount of the maximum brake demand, and wherein the specific brake pressure lies within the brake pressure value range and is equal to the maximum brake pressure, b2) defining another support point that assigns the maximum brake pressure and the maximum brake demand to each other, b3) defining a characteristic curve section of the characteristic curve, which extends between the support point and the another support point, and which automatically assigns the maximum brake pressure to each brake request (a soll) in a brake demand range. b1) defining a support point of the characteristic curve, at which a brake demand limit value and a specific brake pressure are associated with each other, wherein the brake demand limit value lies within the brake demand value range and is greater in amount than the amount of the minimum brake demand but less than the amount of the maximum brake demand, and wherein the specific brake pressure lies within the brake pressure value range and is equal to the maximum brake pressure, b2) defining another support point that assigns the maximum brake pressure and the maximum brake demand to each other, b3) defining a characteristic curve section of the characteristic curve, which extends between the support point and the another support point, and which automatically assigns the maximum brake pressure to each brake request (a soll) in a brake demand range.