Patent ID: 8155798

Claim:
A method for determining a roll angle of a motorcycle comprising the steps of: acquiring a rolling rate ({dot over (λ)} M ) of the motorcycle; determining a first roll angle variable (λ 1 ) from the rolling rate ({dot over (λ)} M ); acquiring at least one vehicle movement dynamics characteristic variable from a velocity (v), a rotational speed ({dot over (ψ)} M ), an acceleration ({umlaut over (z)} M , ÿ M ) of the motorcycle or a combination thereof; determining a second roll angle variable (λ 2 ) from one or more vehicle movement dynamics characteristic variables; calculating the roll angle (λ E ) on the basis of the roll angle variables (λ 1 , λ 2 ); filtering the second roll angle variable (λ 2 ) with a low pass filter prior to the step of calculating the roll angle (λ E ); and filtering the first roll angle variable (λ 1 ) with a high pass filter prior to the step of calculating the roll angle (λ E ), wherein a cut-off frequency (f Trenn ) of the low pass filter that filters the second roll angle variable (λ 2 ) is substantially identical to a cut-off frequency of the high pass filter that filters the first roll angle variable (λ 1 ).