Generalized Extended State Observer Based Control of Hydraulic Active Suspension System With Quantization

This paper studies the generalized extended control problem of the hydraulic active suspension system with quantization. The aim of this paper is to design a generalized extended state observer to estimate the unmeasurable state and to design a controller using the estimated value to make the hydraulic active suspension system reach the control target under the influences of the quantized input signal and the quantized output signal. Moreover, considering that road disturbances do not match the input channels, special controller matrices are used to prevent disturbances from having a direct effect on the controlled output channels. Finally, an example simulation of the quarter-vehicle hydraulic active suspension system is given to verify the validity of the designed controller.