METHOD FOR DETERMINING A PRESSURE/VOLUME CHARACTERISTIC CURVE OF A WHEEL BRAKE
Method for determining a pressure/volume characteristic curve (Vi (p)) of a wheel brake (6a-6d) in a brake system for motor vehicles having an electrically controllable pressure supply device (4) which is or can be connected hydraulically to wheel brakes (6a-6d) and can output a pressure medium volume (VDQ) for activating the wheel brakes (6a-6d), wherein the pressure medium volume which is output by the pressure supply device (4) can be determined, and having an electrically actuable inlet valve (28a-28d) per wheel brake for disconnecting the connection between the wheel brake and the pressure supply device (4), wherein during one or more service brake operations of the motor vehicle wheel brakes are activated by the pressure supply device (4), the pressure medium volume (VDQm) which is output by the pressure supply device (4) in order to activate the wheel brakes is determined and the pressure/volume characteristic curves (Vi (p)) of the wheel brakes (6a-6d) are determined on the basis of pressure medium volumes (VDQ1, VDQ2, VDQ3, VDQ4, VDQ5) which are output by the pressure supply device (4) during one or more service braking operations are determined, and a brake system.