Redundant Vehicle Controller Links for Fault-Tolerant Data Transmission
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Solution Overview
Problem
The increasing complexity of automotive systems due to the rise in unit controllers within vehicles necessitates a more reliable communication method among controllers and a robust topological network structure to manage data transmission effectively.
Innovation Solution
An intelligent vehicle communication system is implemented, featuring multiple controllers and communication links with redundant pathways, utilizing switches to ensure data transmission reliability by allowing data to be sent through alternative links in case of failures, and incorporating Ethernet interfaces for multi-channel data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple communication links are implemented between controllers, then transmission reliability is improved, but system complexity increases
Solution Approach 1:
The communication network is segmented into multiple independent communication links between controllers. Each link operates as a separate pathway, allowing data to be transmitted through alternative routes if one link fails. This segmentation provides redundancy without requiring a complete redesign of the entire communication system.
Solution Approach 2:
Redundant communication links are established in advance before any failure occurs. The system pre-configures multiple pathways between controllers, so that when a link failure happens, the alternative path is already available without requiring real-time reconfiguration or complex failure analysis.
2Reliability
If redundant communication pathways are added, then fault tolerance is improved, but network complexity increases
Solution Approach 1:
The network is divided into multiple redundant pathways between controllers, with each path being a complete but independent route. This segmentation allows the system to tolerate link failures while maintaining manageable complexity through modular path design.
Solution Approach 2:
The redundant pathways are pre-established and configured before any failures occur. This beforehand preparation ensures fault tolerance without requiring complex real-time routing decisions or dynamic reconfiguration protocols when failures happen.
3Productivity
If multiple communication links are implemented, then communication efficiency is improved, but topological structure complexity increases
Solution Approach 1:
The communication topology is segmented into multiple distinct links between controllers, where each link represents a separate communication pathway. This segmentation enables efficient data transmission through parallel or alternative routes while keeping each individual link's topological structure relatively simple and manageable.
Data Source
AI summary
An intelligent vehicle communication system comprises a first controller, a second controller, and a communication network. The communication network comprises a first communication link and a second communication link, the first communication link connects the first controller and the second controller, and the second communication link connects the first controller and the second controller; and the first controller and the second controller perform data transmission through at least one of: the first communication link or the second communication link.