Trailer Controller Position Detection for Automatic Coupling

The system divides the position determination task into multiple independent components: a position-determining unit with multiple sensors (GPS, GPRS, or other radio wave-based systems) that independently detect positions of predefined regions on the trailer, and an evaluation unit that processes these individual position data points to determine overall trailer position and alignment. This segmentation allows reliable coupling determination while keeping each component relatively simple and modular.

The trailer controller acts as an intermediary device mounted on the trailer that mediates between the trailer's physical position and the tractor unit's coupling system. The controller receives position data from various sources, processes it through the evaluation unit, and communicates the determined alignment information to assist the tractor unit in achieving proper coupling. This intermediary role enables automatic coupling assistance without requiring complex integration into either the trailer or tractor unit itself.

The trailer's position determination system is segmented into multiple discrete predefined regions (typically at least two, preferably three or more) that are spatially distributed across the trailer structure. Each region has its position independently determined by radio wave-based sensors, and the evaluation unit combines these individual measurements to calculate the trailer's overall alignment. This segmentation approach improves measurement precision by providing multiple data points while keeping each sensor node relatively simple and inexpensive.

The system replaces complex mechanical alignment measurement devices with radio wave-based position determination (GPS, GPRS, or similar wireless systems). Instead of using mechanical sensors, encoders, or physical alignment tools, the invention uses electromagnetic wave propagation to determine the positions of predefined regions on the trailer, thereby achieving high measurement precision with simpler, non-contact technology.

The trailer controller system provides self-service functionality by automatically determining its own position and alignment relative to the tractor unit without requiring manual measurement or adjustment by the operator. The position-determining unit continuously monitors the trailer's position, and the evaluation unit automatically calculates alignment information, enabling the system to assist in the coupling process autonomously. This self-service capability increases productivity while maintaining ease of operation, as the system handles the complex calculations and adjustments automatically.

The system implements feedback by continuously monitoring the trailer's position and alignment through the position-determining unit and using this information to provide real-time guidance for the coupling process. The evaluation unit processes position data from multiple predefined regions and provides feedback about the trailer's orientation and position relative to the tractor unit, enabling operators to make informed adjustments or allowing automatic systems to correct alignment automatically, thereby maintaining ease of operation while increasing productivity.