Optimal Control of Ride Comfort of a Passenger Car: Comparison between the Hydro Active and the Fully Active Suspension Systems

Sarshari, Ehsan; Sedigh, Ali Khaki; Sadati, Hossein

doi:10.4271/2010-01-1913

Cited by 2 publications

(1 citation statement)

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“…Reference [14] conducts a comprehensive research about control structure selection. Reference [15] assumes that all the states are available and can be measured accurately; thus the regulatory feedback can be considered like V = − ⋅ and is the feedback gain matrix. Just considering that the displacement and the roll angle of upper vehicle are not enough, the suspension deflection and the performance of bottom vehicle also should be considered.…”

Section: Optimal Controller Designmentioning

confidence: 99%

The Exact Linearization and LQR Control of Semiactive Connected Hydropneumatic Suspension System

Xiao

Cao

Wang

2015

Journal of Control Science and Engineering

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Based on differential geometry theory, the nonlinear system of connected hydropneumatic suspension was transformed to a linear one. What is more, it realized the decoupling and inverter between the control variables and system outputs. With LQR (Linear Quadratic Regulator) control theory, a semiactive system has been developed for connected hydropneumatic suspension in this paper. By AMESim/Simulink cosimulation, the results show that the semiactive connected hydropneumatic suspension decreases the vibration of upper vehicle quickly and reduces the impact acceleration strongly both in displacement and inroll angle. Moreover, the semiactive suspension could increase the suspension dynamic deflection, which would make the system reach balance quickly and keep small vibration amplitude under the effect of disturbance.

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Section: Optimal Controller Designmentioning

confidence: 99%