Control of active suspension system considering nonlinear actuator dynamics
| Autor: | Sinan Kilicaslan |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
State variable Differential equation Applied Mathematics Mechanical Engineering Aerospace Engineering Ocean Engineering 02 engineering and technology Active suspension 01 natural sciences Nonlinear system 020901 industrial engineering & automation Control and Systems Engineering Control theory 0103 physical sciences Riccati equation Sprung mass Unsprung mass Electrical and Electronic Engineering Suspension (vehicle) 010301 acoustics Mathematics |
| Zdroj: | Nonlinear Dynamics. 91:1383-1394 |
| ISSN: | 1573-269X 0924-090X |
| DOI: | 10.1007/s11071-017-3951-x |
| Popis: | Application of the state-dependent Riccati equation and approximating sequence of Riccati equation techniques for the control of active suspension system considering nonlinear actuator dynamics will be investigated. First, equation of motion of the vehicle model is written in terms of the nonlinear state equations. Then, a performance index is formed for the minimization of the acceleration of the sprung mass, suspension deflection, velocity of the sprung mass, tire deflection, velocity of the unsprung mass, pressure decrease through the piston, and rate of pressure decrease through the piston. A sinusoidal bump and road roughness are considered as the road disturbances. After that, control input is expressed in terms of the Riccati differential equation variables and the state variables. Finally, quarter vehicle suspension system model of a Ford Fiesta Mk2 is taken into consideration in numerical simulations to test the performances of the both techniques. The results are compared to those of equivalent passive suspension system. |
| Databáze: | OpenAIRE |
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