Abstract: To determine an inhomogeneous roadway in ?-split situation during active ABS control and active yaw torque control (YTC) of a front wheel (HM-wheel) on the high-coefficient-of-friction side, it is arranged that at least the following conditions must be satisfied before the ?-split situation is flagged: a) a front wheel (LM wheel) undergoes ABS control in a pressure reduction phase; a1) the LM front wheel is in the first ABS control cycle; b) the LM front wheel exhibits a deceleration exceeding a defined threshold; c) the locking pressure level of the LM front wheel is lower than a defined threshold; d) the front wheel on the high-coefficient-of-friction side (HM wheel) exhibits a filtered deceleration that is lower than a defined threshold; e) the vehicle deceleration calculated by ABS is lower than a defined threshold.