Combined Trailer Connector for High-Speed Data Compatibility
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Solution Overview
Problem
Conventional communication interfaces between towing vehicles and trailers are limited to 125 kbit data rates, unable to utilize the second CAN line effectively, and lack backward compatibility, restricting the transfer of high-speed data and power.
Innovation Solution
A combined connector plug and socket system that provides both low-speed and high-speed communication links, with the low-speed link operational even when the high-speed link is not connected, using separate power supplies and terminals for backward compatibility, enabling data rates above 1 Mbit per second.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a new communication interface is introduced to support higher data rates, then data transmission speed is improved, but compatibility with existing conventional systems deteriorates
Solution Approach 1:
The connector plug is divided into two separate portions: a first connector plug portion for low-speed communication (125 kbit) that maintains compatibility with conventional systems, and a second connector plug portion for high-speed communication (above 1 Mbit) that enables advanced data transfer. This segmentation allows each portion to be optimized independently while working together in the combined connector system.
Solution Approach 2:
The combined connector plug is designed to perform multiple functions simultaneously: it provides both low-speed and high-speed communication capabilities, and can operate in different modes (first portion only, second portion only, or both portions together). This multi-functionality enables the single connector to serve both legacy and advanced systems, achieving universal compatibility across different application scenarios.
2Quantity of substance
If additional electric connections are added to support high-speed communication, then data bandwidth is improved, but device complexity increases
Solution Approach 1:
The additional connections for high-speed communication are segregated into a separate second connector plug portion, distinct from the conventional first connector plug portion. This segmentation isolates the complexity of the high-speed interface into a modular component that can be added without redesigning the entire connector system, making the complexity manageable and optional.
Solution Approach 2:
The second connector plug portion with high-speed communication capabilities is designed to be integrated with or alongside the first connector plug portion, creating a nested or combined structure. This nesting approach allows the high-speed interface to be embedded within or adjacent to the conventional interface, sharing common structural elements like the cable connection point while maintaining functional independence.
3Adaptability or versatility
If a combined connector system is implemented to support both low-speed and high-speed communication, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The first and second connector plug portions are merged into a single combined connector plug assembly that connects to the vehicle in one operation. This merging eliminates the need for separate installation steps for low-speed and high-speed connectors, maintaining ease of operation despite the increased functionality. The combined design allows both communication modes to be activated simultaneously through a single plugging action.
Data Source
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AI summary
A combined connector plug (100) for a connection between a towing vehicle (10) and a trailer (20) is disclosed. The combined connector plug (100) comprises: a first connector plug portion (110) configured to connect a first connector socket portion (210) and to provide a first power supply and low-speed communication link between the towing vehicle (10) and the trailer (20); and a second connector plug portion (120) configured to connect a second connector socket portion (220) and to provide a second power supply and a high-speed communication link between the towing vehicle (10) and the trailer (20), the high-speed communication link providing a transmission rate that is higher than the low-speed communication link, wherein the first connector plug portion (110) is configured to connect the first connector socket portion (210) even if the second connector plug portion (120) is not connected to the second connector socket portion (220).