Vehicle Control Unit Specification Sync via Common Data Storage
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Solution Overview
Problem
Existing methods for setting specification data in vehicle control units are error-prone and complex, especially when updating or integrating new equipment, as they require coordinating multiple control units to use the same valid data.
Innovation Solution
A method where a common data storage in the vehicle holds the currently valid specification data, which are shared among control units during an initialization phase, ensuring all units operate on the same data basis and reducing the complexity of updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specification data are stored in each control unit individually, then each control unit can operate independently, but coordinating updates across multiple control units becomes error-prone and complex
Solution Approach 1:
The patent merges the specification data storage function into a single central control unit (gateway), eliminating the need for each control unit to store identical copies. This centralization ensures data consistency across all vehicle systems while simplifying update coordination, as changes are made in one location and automatically distributed to relevant control units.
2Reliability
If specification data are updated in all control units simultaneously, then all units use the same valid data, but the update process becomes time-consuming and complex
Solution Approach 1:
The gateway control unit performs preliminary validation and preparation of specification data before distribution. It validates the incoming data format and content, then automatically distributes the validated data to all relevant control units in a coordinated manner, eliminating the need for simultaneous manual updates and reducing overall update time.
Solution Approach 2:
The system implements a feedback mechanism where control units acknowledge receipt of updated specification data to the gateway. This allows the gateway to track which units have been updated and ensures all units receive the same valid data version, maintaining data validity while streamlining the update process.
3Adaptability or versatility
If new equipment is integrated into the vehicle, then vehicle functionality is enhanced, but updating specification data in all affected control units increases complexity
Solution Approach 1:
The gateway control unit serves multiple functions: it acts as a central data storage location, a validation engine, a distribution network, and an update coordinator. This multi-functionality allows new equipment to be integrated by simply adding the new component's specifications to the gateway, which then automatically manages distribution to all relevant control units, reducing integration complexity.
4Reliability
If specification data are stored centrally in one control unit, then data consistency is improved, but access time for distributed control units increases
Solution Approach 1:
The system performs preliminary distribution of specification data from the central gateway to all control units during system initialization or when changes occur. This ensures that control units have local access to current specification data without requiring real-time queries to the gateway, maintaining both data consistency and fast access speeds during vehicle operation.
Data Source
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AI summary
The invention is concerned with a method for setting specification data (16) of vehicle specifications in several control units (14) of a vehicle (10), wherein the control units (14) provide at least one vehicle functionality (15) and each of the control units (14) configures its vehicle functionality (15) on the basis of the vehicle specifications. The inventive method comprises that in the vehicle (10) a common data storage (19) is provided where the specification data (16) describing the currently valid vehicle specifications are stored and the control units (14) are once or repeatedly operated in an initialization phase (22), wherein in the initialization phase (22) the respective control unit (14) receives a copy of at least a subset of the specification data (16) out of the common data storage (19) and adapts its respective vehicle functionality (15) according to the received specification data (16).