METHOD FOR MONITORING THE VEHICLE HANDLING OF A TWO TRACK VEHICLE

A method monitors the vehicle handling of a vehicle with respect to vehicle stability by comparing a measured variable, which reflects the yaw rate or the lateral acceleration, with a comparison value, which is derived from the steering angle, specified by the driver. The gradients of the regression lines, which are normalized in relation to each other, of the measured variable, on the one hand, and the comparison value, which represents the steering angle, on the other hand, are compared continuously over a number of analysis time windows. Upon finding a significant deviation between these gradients, an unstable driving condition is concluded. The difference between the gradients of the regression lines, which may be determined by a first order least squares method and normalized to the same units by a suitably applied amplification factor, are determined and compared with a suitably determined limit value, above which an instability is inferred. Alternatively, the measured variable and the comparison value, which represents the steering angle, can be analyzed for a linear or nonlinear dependence within an analysis time window by a coherence analysis; and on detection of a noteworthy nonlinearity, an unstable driving condition can be concluded.