Abstract
This paper discusses the path-following performance of actively-steered articulated vehicles based on measurement signals from two “ground-watching” navigation systems (GWNSs). The GWNSs are described. These uses high-speed USB-3 cameras and an image processing computer to measure and calculate off-tracking distance for a path-following steering controller. Full-scale field tests are performed using an experimental articulated vehicle, tested under both open-loop and closed-loop conditions. Off-tracking distance at the rear camera with respect to the front camera is controlled to be less than 0.1 m for tests with both GWNSs.
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