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Multilane Automated Driving With Optimal Control and Mixed-Integer Programming
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DOI：10.1109/TCST.2020.3046570.png)
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Abstract
En 中文
Road vehicle lane changes often initiate traffic disturbances and can therefore impact road networks' energy and time efficiency. Furthermore, unexpected changes in traffic conditions may also render lane changes counterproductive for the lane-changing vehicle. Vehicle-to-vehicle connectivity combined with anticipative control could address these challenges via improved lane change decisions by automated vehicles. In a move toward this objective, receding horizon control cast as a mixed-integer quadratic program is used to plan lane changing and acceleration in a coupled optimization. A long-term pacing module, based on Pontryagin's minimum principle from optimal control theory, sets terminal and input references for receding horizon control to target a user's expected travel time. To remove nonlinear vehicle dynamics from the receding horizon controller, lane change commands are passed to a pure pursuit steering module whose response is approximated by a second-order linear model. Comparison against a rule-based reactive algorithm in arterial and highway scenarios shows an 8.9%-13.7% reduction in energy consumption and a 5.2%-10.3% reduction in the travel time, along with navigational improvements.
Keywords:
Roads
Acceleration
Vehicle dynamics
Programming
Planning
Optimal control
Mathematical model
Decentralized control
intelligent vehicles
mathematical programming
motion planning
optimal control
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