학술논문

Optimal Decision Making for Automated Vehicles Using Homotopy Generation and Nonlinear Model Predictive Control
Document Type
Conference
Source
2021 IEEE Intelligent Vehicles Symposium (IV) Intelligent Vehicles Symposium (IV), 2021 IEEE. :1045-1050 Jul, 2021
Subject
Communication, Networking and Broadcast Technologies
Computing and Processing
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Uncertainty
Roads
Decision making
Signal processing
Predictive models
Trajectory
Safety
Language
Abstract
To navigate complex driving scenarios, automated vehicles must be able to make decisions that reflect higher-level goals such as safety and efficiency, leveraging the vehicle's full capabilities if necessary. We introduce an architecture that is capable of handling combinatorial decision making and control with a high fidelity vehicle model. This is accomplished by solving a nonlinear model predictive control optimization for each maneuver variant, or homotopy, identified in the drivable space. These locally optimal solutions are then evaluated on a criterion that reflects high-level objectives. Experimental results on a full-scale vehicle demonstrate this architecture's effectiveness in an overtaking scenario with oncoming traffic that requires the ego vehicle to decide whether to pass before or after the oncoming traffic passes.