Controlling a vehicle damper and differentiating between wheel and body events

A first method for differentiating between a wheel event and a body event in a control algorithm for a controllable suspension damper for a vehicle wheel. An input signal corresponding to the vertical velocity of the vehicle wheel is obtained. The input signal is filtered to obtain an output signal....

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Bibliographic Details
Main Author BARTA DAVID J
Format Patent
LanguageEnglish
Published 28.09.2006
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLE SUSPENSION ARRANGEMENTS
VEHICLES IN GENERAL
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Summary:A first method for differentiating between a wheel event and a body event in a control algorithm for a controllable suspension damper for a vehicle wheel. An input signal corresponding to the vertical velocity of the vehicle wheel is obtained. The input signal is filtered to obtain an output signal. The frequency of the input signal is determined using the input and output signals. Another step includes distinguishing between a wheel event and a body event using the determined frequency. A second method for controlling a controllable suspension damper for a vehicle wheel includes the first three steps of the first method. Another step includes applying a vehicle-wheel-event control signal to the controllable suspension damper for at least some determined frequencies greater than a predetermined low value. Another step includes applying no vehicle-wheel-event control signal to the controllable suspension damper if the determined frequency is below the predetermined low value.
Bibliography:Application Number: US20050086109