Vehicle Data Exchange Management for Lower In-Vehicle Traffic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle communication systems treat non-function data similarly to function data, leading to an additional burden on computing power, resources, and data traffic within the vehicle.
Innovation Solution
A management unit is implemented in the vehicle-internal computing unit to distinguish between function and non-function data, preprocess non-function data, and manage their transmission to a vehicle-external computing unit, optimizing data processing and transmission by caching, buffering, and using intelligent data handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If non-function signals are transmitted in high resolution via the fieldbus system like function signals, then data quality is maintained, but computing power and data traffic within the vehicle increase
Solution Approach 1:
The patent extracts non-function signals from the high-resolution fieldbus transmission stream and handles them separately through a dedicated data outlet. This allows function signals to maintain high resolution while non-function signals are processed differently, reducing the overall computing burden and data traffic on the fieldbus system while preserving necessary data quality for vehicle operations.
Solution Approach 2:
The patent segments the data transmission path into two separate channels: one for function signals requiring high-resolution real-time transmission via the fieldbus system, and another for non-function signals that can be processed and transmitted with lower priority. This segmentation allows optimized handling of each signal type, reducing unnecessary computing power consumption while maintaining data quality where critical.
2Loss of information
If non-function signals are transmitted in high resolution via the fieldbus system, then data completeness is ensured, but data traffic within the vehicle increases
Solution Approach 1:
The patent extracts non-function signals from the main fieldbus data stream and routes them through a separate data outlet. This extraction ensures that function signals maintain complete high-resolution transmission while non-function signals are handled with reduced bandwidth requirements, thereby ensuring data completeness for critical functions while reducing overall data traffic.
Solution Approach 2:
The patent divides the data transmission into segmented paths: critical function signals travel through the high-bandwidth fieldbus system ensuring complete data transmission, while non-critical non-function signals are segmented into a separate lower-bandwidth channel, reducing total data traffic while maintaining necessary data completeness.
3Loss of information
If function data are continuously read in by the management unit, then data availability is improved, but processing load increases
Solution Approach 1:
The patent implements periodic sampling of function data at the management unit rather than continuous reading. Data are read in at predefined times or after predefined time intervals have elapsed, which maintains adequate data availability for vehicle operations while significantly reducing the processing load on the management unit compared to continuous data acquisition.
Data Source
AI summary
A method for managing a data exchange between a vehicle-internal computing unit and a vehicle-external computing unit. The method includes: receiving or reading in, by a management unit, function data of the vehicle-internal computing unit, wherein the function data relate to an operation of the vehicle; processing the function data by the management unit; generating data messages by the management unit depending on the function data processed; storing the data messages in a memory unit in the management unit; and transmitting the data messages stored in the memory unit by the management unit to a communication interface of the vehicle-internal computing unit in order to transmit the data messages from the vehicle-internal computing unit to the vehicle-external computing unit.