Journal of System Simulation
Abstract
Abstract: To eliminate the influence of parameter perturbations and external disturbances on the wheel angle tracking control performance of steer-by-wire (SbW) system, a fractional-order integral terminal sliding mode control scheme based on a finite-time disturbance observer is proposed. A sliding modebased second order finite-time disturbance observer (FDO) is designed to precisely estimate the total disturbance of the SbW system, and the estimated total disturbance is compensated into the system control input to reduce the wheel angle tracking error. A fractional-order fast integral terminal sliding mode control (FOFITSMC) scheme is designed to ensure fast convergence of the wheel angle tracking error and achieve the suppression of chattering. Results demonstrate that the proposed control strategy improves the MAE and RMSE of angle tracking by over 25% compared to PI, FOFITSMC, and NASTSMC strategies, and has better control accuracy and robustness. The control scheme proposed in the paper provides theoretical reference for the design of SbW system controllers in actual engineering.
Recommended Citation
Zhang, Jingyi; Chen, Xin; Ding, Jingang; Luo, Jianguo; and Feng, shuo
(2025)
"Finite-time Robust Anti-disturbance Control for Steer-by-wire System,"
Journal of System Simulation: Vol. 37:
Iss.
6, Article 4.
DOI: 10.16182/j.issn1004731x.joss.24-1370
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol37/iss6/4
First Page
1376
Last Page
1387
CLC
TP391
Recommended Citation
Zhang Jingyi, Chen Xin, Ding Jingang, et al. Finite-time Robust Anti-disturbance Control for Steer-bywire System[J]. Journal of System Simulation, 2025, 37(6): 1376-1387.
DOI
10.16182/j.issn1004731x.joss.24-1370
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