Method for monitoring an implementation of an automatedly demanded braking preset, and brake system

A brake system comprising ABS brake system, for a vehicle, comprising a utility vehicle, the brake system comprising:

• a service brake valve configured to receive a service-brake braking specification;
• at least one relay valve which is assigned to a vehicle axis of the vehicle and is configured to output a service-brake brake pressure to service brakes of the vehicle;
• a switching valve which is connected upstream of the at least one relay valve, in a first switching-valve switched position the switching valve being configured to pass on a service-brake control pressure, which is output by the service brake valve as a function of the service-brake braking specification to the at least one relay valve in order to output the service-brake brake pressure by the at least one relay valve as a function of the service-brake control pressure, and in a second switching-valve switched position the switching valve being configured to connect a pressure medium reservoir to the relay valve in order to output a service-brake brake pressure by the at least one relay valve as a function of a multi-purpose pressure medium pressure in the multi-purpose pressure medium reservoir;
• ABS control valves which are connected upstream of the service brakes and are configured to adapt the service-brake brake pressure, which is output by the at least relay valve;
• and
• a central module configured to control the ABS control valves and the switching valve and to carry out a method for adapting the service-brake brake pressure, which is output by the at least one relay valve, as a function of the current assistance braking specification, the method for adapting the service-brake pressure comprising:
• detecting whether an assistance braking specification which is requested in an automated fashion is present;
• detecting an actual dynamics variable, the actual dynamics variable comprising wheel dynamics of at least one wheel of the vehicle and/or of a trailer, the actual dynamics variable being assigned to a wheel which is to be braked as a result of the assistance braking specification which is requested in an automated fashion;
• determining a reference dynamics variable, the reference dynamics variable comprising driving dynamics of the vehicle and/or of the trailer;
• and
• comparing the actual dynamics variable with the reference dynamics variable,
• wherein when an assistance braking specification is present:
• a faultfree implementation of the assistance braking specification which is requested in an automated fashion is detected if the actual dynamics variable deviates, taking into account a noise deviation, at least temporarily from the reference dynamics variable by a pulse deviation, and/or
• a faulty implementation of this assistance braking specification which is requested in an automated fashion is detected if the actual dynamics variable does not deviate, taking into account the noise deviation, from the reference dynamics variable by a pulse deviation.