Abstract: A device for detecting electromagnetic stray effects in systems with at least two inductive sensors which provide an essentially periodic output signal, performs a signal evaluation for evaluating signals of the sensors, a test for detecting an electromagnetic stray effect, whether periods of the signals to be evaluated lie within a period length of expected stray effects, a test, if applicable, whether detected signal progressions have at least a progression typical for stray pick-up, plausibility tests by means of at least one further detected signal in which a signal to be checked is compared with parallel measured other signals, and detecting a stray effect only if all tested conditions provide a result which is typical for stray effects.

Abstract: An information lamp flashes when instability is detected, whether the system is switched on, off or limited in its functional scope. When the traction control system is switched off or limited in its functional scope and no instability is detected, the lamp lights up continuously.

Abstract: An ASR is described which actuates the brakes in the case of spin. A maximum braking torque which depends on the drive torque is specified here in order to prevent strangling of the engine by the ASR operation.

Abstract: When a first drive wheel is braked as a function of slippage at that wheel, braking intervention at the second drive wheel is precluded until the braking intervention at the first drive wheel is essentially terminated. This produces a locking differential effect.