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Coordinating Tire Forces to Avoid Obstacles Using Nonlinear Model Predictive Control
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DOI：10.1109/TIV.2019.2955362.png)
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Abstract
En 中文
In order to safely navigate highly dynamic scenarios, automated vehicles must be able to react quickly to changes in the environment and be able to understand trade-offs between lateral and longitudinal forces when limited by tire-road friction. We present a design and experimental validation of a nonlinear model predictive controller that is capable of handling these complex situations. By carefully selecting the vehicle model and mathematical encodings of the vehicle and obstacles, we enable the controller to quickly compute inputs while maintaining an accurate model of the vehicle's motion and its proximity to obstacles. Experimental results of a test vehicle performing an emergency double lane change to avoid two pop-up obstacles demonstrate the ability of the controller to coordinate lateral and longitudinal tire forces even in emergency situations when the tires are at their friction limits.
Keywords:
Automated vehicles
vehicle dynamics
obstacle avoidance
nonlinear model predictive control
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