EPI Module Position Detection for Automated Trailer Coupling
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Solution Overview
Problem
Conventional coupling systems between towing vehicles and trailers lack efficient means for fully or partially automated positioning during the coupling process, especially when the trailer is partially hidden from the driver's view, leading to difficulties in maintaining precise relative positioning for safe and accurate mechanical and electrical connections.
Innovation Solution
Integration of a position detection device within the EPI module that can determine the relative longitudinal distance, lateral offset, height offset, and angle between the towing vehicle and trailer, allowing for improved accuracy and safety in fully or partially automated coupling processes without the need for additional sensors or complex evaluation algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional coupling systems are used without integrated position detection, then the device complexity is reduced, but the measurement precision of relative position between towing vehicle and trailer deteriorates
Solution Approach 1:
The patent integrates a position detection device directly into the EPI module, combining multiple functions (electrical connection, pneumatic connection, and position detection) into a single integrated unit. This eliminates the need for separate sensors and reduces overall system complexity while improving measurement precision through centralized detection capability.
Solution Approach 2:
The EPI module is designed to serve multiple functions simultaneously: establishing electrical connections, establishing pneumatic connections, and detecting relative position. This multi-functionality allows a single component to provide both coupling and measurement capabilities, resolving the contradiction between improved measurement precision and increased device complexity.
2Ease of operation
If the trailer is positioned such that it is partially hidden from the driver's view, then the coupling space is optimized, but the ease of operation for manual positioning deteriorates
Solution Approach 1:
The patent replaces manual visual positioning with an automated position detection system integrated into the EPI module. This system uses sensors to detect relative position and provides automated guidance or control, substituting the driver's visual assessment with instrumental measurement and automated decision-making, thereby improving ease of operation while compensating for reduced visibility.
Solution Approach 2:
The integrated position detection device provides real-time feedback about the relative position between the towing vehicle and trailer to the driver or automated control system. This feedback loop enables precise positioning even when the trailer is partially hidden, as the system continuously monitors and communicates position information without requiring direct visual contact.
3Measurement precision
If additional sensors are added to detect relative position, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The patent combines position detection functionality within the existing EPI module structure, eliminating the need for separate additional sensors. The detection device is integrated into the coupling unit itself, sharing the same housing and structural elements, thereby improving measurement precision without proportionally increasing device complexity.
Data Source
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Figure 3
AI summary
The invention relates to an EPI module (4). According to the invention, a position detection device (15) for a distance (17) is integrated into the EPI module (4). Optionally, a storage device (18) for an electrical power supply, a control unit (21), at least one pressure sensor (31, 32) and/or at least one valve (28) or a valve assembly (27) can also be integrated into the EPI module (4). The invention is used for the electrical/electronic and pneumatic coupling of a towing vehicle with a trailer.