Abstract
Through analysis of the effect of road adhesion conditions and curvatures to the vehicle steering characteristics and stabilility, an equivalent dynamic model for high-speed unmanned vehicles is established. A model discretization method with variable steps is proposed to ensure a long enough prediction time domain while maintaining model prediction accuracy and computational feasibility. By analyzing the steady running state of high-speed vehicles, the envelope-based sideslip constraints are concluded and the trajectory tracking controller of high-speed unmanned vehicles based on model predictive control is designed. Simulation results validates that the proposed strategy can effectively ensure the vehicle handling stability under different road adhesion conditions and road curvatures.
Translated title of the contribution | A Research on Handling Stability of High-speed Unmanned Vehicles |
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Original language | Chinese (Traditional) |
Pages (from-to) | 514-521 |
Number of pages | 8 |
Journal | Qiche Gongcheng/Automotive Engineering |
Volume | 41 |
Issue number | 5 |
DOIs | |
Publication status | Published - 25 May 2019 |