Automotive Backbone Wiring Loops for Redundant Data Transmission
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Solution Overview
Problem
Traditional wiring systems lack redundancy, leading to communication failures when a single cable fails, which is particularly critical in applications like driver-assist and autonomous driving, resulting in system failures and increased physical space and manufacturing costs.
Innovation Solution
A wiring system architecture with multiple communication pathways forming loops, allowing data to be transmitted in both directions, ensuring redundancy and maintaining communication even if one pathway fails, using a backbone with bi-directional cables and hubs connected in a loop configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are paired to create redundancy, then communication reliability is improved, but physical space and manufacturing cost increase
Solution Approach 1:
The patent merges multiple communication pathways into a single backbone cable using point-to-point connections. Each hub connects to the backbone at a single attachment point, allowing redundant communication paths to coexist without requiring multiple cables or attachment points. This combining approach maintains reliability while reducing physical space requirements.
Solution Approach 2:
The backbone cable serves multiple functions simultaneously by carrying communication signals for multiple devices through a single infrastructure. The system provides both redundant communication paths and power delivery through the same backbone, eliminating the need for separate cables and reducing overall physical space requirements.
2Reliability
If cables are paired to create redundancy, then communication reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple communication functions into a single backbone infrastructure, reducing the total number of cables and attachment points required. This merging approach lowers manufacturing costs by reducing material requirements and assembly complexity while maintaining redundant communication paths through the backbone.
Solution Approach 2:
The system segments communication functions into individual point-to-point connections between hubs and the backbone, allowing each connection to be independently managed and manufactured. This segmentation enables cost-effective production by standardizing connection interfaces and reducing the complexity of cable assemblies.
3Area of stationary object
If a single cable is used for communication, then physical space is reduced, but communication reliability deteriorates
Solution Approach 1:
The patent implements dynamic path selection where communication can automatically switch between different pathways along the backbone if one path fails. This dynamic routing capability provides redundancy while maintaining a single-cable physical infrastructure, as the backbone can route signals through multiple logical paths between any two points.
Solution Approach 2:
The backbone acts as an intermediary that provides multiple communication pathways between devices. By using the backbone as a mediating infrastructure with multiple access points, the system achieves redundant communication without requiring multiple direct cable connections between devices, thus saving physical space.
Data Source
AI summary
A wiring system for an automobile connecting a processor and a plurality of devices, using one or more backbone sections. The processor and devices are connected to one another to form a first loop and a second loop, such that data may be transmitted along the first loop and data may be transmitted along the second loop.