Trailer Connector Module Integrating Braking and Non-Braking Data Buses
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Solution Overview
Problem
The existing electronic braking systems for commercial vehicle trailers are complex, costly, and inflexible due to the need for multiple standards compliance and high cabling costs, which limits the introduction of additional functionality and increases installation difficulty.
Innovation Solution
A connector module with a first databus for braking-related data and an optional second databus for non-braking functions, using a 4-wire cable with standards compliant connections, allowing for increased data speed and integration of additional features like obstacle detection and lighting control, combined with an intelligent lighting board and Trailer Power and Communication Module for simplified electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple standards compliance (ISO 7638, ISO 1185, ISO 12098) is implemented to ensure compatibility and safety, then system reliability is improved, but device complexity and cabling costs increase
Solution Approach 1:
The patent combines multiple standard-compliant connectors (ISO 7638 for braking, ISO 1185 for lighting, ISO 12098 for auxiliary functions) into a single integrated connector assembly. This merging approach maintains compliance with all required standards while reducing the number of separate cable assemblies needed, thereby lowering overall system complexity and installation difficulty.
Solution Approach 2:
The connector assembly is designed to provide multiple functions through a single integrated unit: it handles braking control signals, lighting control signals, and auxiliary function signals simultaneously. This multi-functional design eliminates the need for separate dedicated connectors for each function, reducing cabling complexity while maintaining full standards compliance.
2Adaptability or versatility
If additional functionality (obstacle detection, autonomous driving features) is added to the braking system, then adaptability is improved, but device complexity increases
Solution Approach 1:
The connector assembly is designed with universal multi-functionality, providing dedicated pins and circuits for both traditional braking functions and advanced features like obstacle detection and autonomous driving. This allows the same hardware platform to support multiple levels of functionality without requiring separate systems for basic and advanced features.
Solution Approach 2:
The system incorporates dynamic configurability where the connector assembly can adapt its functionality based on the specific trailer configuration. Optional second databus connections and configurable pin assignments allow the system to dynamically adjust between basic braking-only mode and advanced multi-functional mode, managing complexity through flexible configuration rather than fixed architecture.
3Power
If high cross-sectional area power cables (4 mm2 or 6 mm2) are used to meet power requirements, then power delivery capability is improved, but ease of operation deteriorates due to cable stiffness
Solution Approach 1:
The power delivery function is segmented and distributed across multiple pins within the connector assembly rather than relying on a single thick cable. The connector provides multiple power pins (including pin 7 for stop lights and pin 9 for optional power) that can collectively deliver the required power while using thinner, more flexible individual conductors.
Solution Approach 2:
The connector assembly merges multiple power delivery paths into a single integrated unit. By combining power delivery across multiple pins and circuits within the connector, the system achieves the necessary total power capacity without requiring individual cables with large cross-sectional areas, thereby maintaining flexibility and ease of installation.
4Adaptability or versatility
If separate control units are added to provide additional intelligence in the trailer braking system, then adaptability is improved, but device complexity and installation cost increase
Solution Approach 1:
The connector assembly is designed with built-in multi-functionality that provides additional intelligence and control capabilities without requiring separate control units. The connector incorporates multiple databus connections (first databus for braking, optional second databus for non-braking functions) and configurable pin assignments that enable advanced features like obstacle detection and communication within the connector itself.
Solution Approach 2:
The patent merges the functions of multiple separate control units into the single connector assembly. By integrating braking control, lighting control, and auxiliary function control all within one connector unit with multiple databus interfaces, the system achieves the same level of intelligence and adaptability that would otherwise require multiple separate ECUs, thereby reducing overall system complexity.
Data Source
AI summary
A connector in a commercial vehicle electronic braking and communication system for a trailer to connect the system to a prime mover. The connector includes an electronic control module with a first databus connection, which databus, in use, carries braking related data signals and to which a brake pressure control device is attached and a second databus connection, which second databus, in use, carries data relating to non-braking functions.