Central communication unit of purpose-built vehicle and method of configuring dynamic network thereof
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Solution Overview
Problem
In purpose-built vehicles, where modules can be modified, existing static network configurations fail to smoothly exchange information due to changes in the number and type of controllers, and accurate communication compatibility is difficult to maintain without manufacturing modules in the same period.
Innovation Solution
A central communication unit (CCU) dynamically reconfigures the network by broadcasting diagnostic message IDs, checking connected controllers, requesting attribute information, generating a database, and adjusting message IDs and configurations to ensure compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a static network configuration method is used, then the network is simple to manage, but information exchange between controllers becomes difficult when modules are changed
Solution Approach 1:
The patent implements dynamic network configuration where the CCU automatically detects module changes and reconfigures the network topology in real-time. The system transitions from a static predetermined configuration to a dynamic adaptive configuration that automatically adjusts to added, removed, or changed modules, maintaining communication efficiency without manual intervention
Solution Approach 2:
The CCU performs self-service by automatically detecting module changes, identifying affected controllers, reconfiguring network topology, and updating communication parameters without external intervention. The system autonomously manages the entire reconfiguration process, reducing the need for manual configuration management
2Productivity
If controllers are manufactured in different periods, then production flexibility is improved, but communication compatibility between controllers deteriorates
Solution Approach 1:
The system implements feedback mechanisms where controllers exchange identification information and capability data through diagnostic messages. The CCU collects this feedback from all controllers, analyzes compatibility requirements, and automatically adjusts network configuration to ensure reliable communication between controllers manufactured at different times with potentially different specifications
Solution Approach 2:
The patent dynamically changes communication parameters such as message IDs, signal configurations, and database versions based on the specific combination of controllers detected in the network. This allows the system to adapt communication protocols and parameters to match the actual controller mix, ensuring compatibility across different manufacturing periods
3Adaptability or versatility
If the number of controllers is increased, then vehicle functionality is improved, but bandwidth requirements increase
Solution Approach 1:
The patent segments the vehicle network into multiple logical groups or domains based on controller functions and communication patterns. By organizing controllers into segments, the system reduces overall bandwidth consumption as each segment handles only its own traffic, and the CCU manages inter-segment communication efficiently, allowing more controllers to be added without proportionally increasing total bandwidth requirements
Data Source
AI summary
Provided is a method of configuring a dynamic network in a central communication unit (CCU) of a purpose-built vehicle, which dynamically reconfigures a network for a controller connected to the CCU as a predetermined module is changed in the purpose-built vehicle.