This paper describes the use of a decoupling technique to addressautomotive ride control. A full nonlinear vehicle model was developed,which was validated against experimental data. The resultantmultivariable ride control problem was linearised, and then decoupled inthe frequency domain using dyadic expansion. Diagonalisation wasachieved for the range of primary ride frequencies. The resultingdecoupled system consisted of three single input single output (SISO)systems, one for each of the sprung mass modes (bounce, pitch and roll).A velocity feedback controller was implemented for each sprung mass modeloop. This control strategy was then evaluated using a nonlinearsimulation
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