Vehicle Data Mediation Gateway for Secure Protocol Conversion

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Solution Overview

Problem

Existing vehicle communication protocols fail to fully utilize the capabilities of both less complex actuators and sensors and more powerful vehicle components, lacking advanced functionalities such as redundancy resolution, end-to-end encryption, and end-to-end security, and often use incompatible data formats.

Innovation Solution

A data mediation device that mediates between simpler and more complex data formats, resolves redundancies, ensures secure communication, and provides a universal interface for vehicle components, enabling uniform access and error handling across different data formats and protocols.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If basic data format conversion is implemented between vehicle components, then compatibility between different components is improved, but advanced functionalities such as redundancy resolution and end-to-end security are not supported

Engineering Contradiction:
Improvedata format compatibilityVSAvoidcommunication security
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a gateway as an intermediary device between vehicle components with different communication capabilities. The gateway performs data format conversion between simple formats (used by actuators/sensors) and complex formats (used by infotainment systems), while also providing advanced functionalities including redundancy resolution, end-to-end encryption, and security management. This mediator approach allows components to communicate without needing to implement all advanced features themselves.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system segments communication functionality into two layers: basic data format conversion handled by individual components, and advanced functionalities (security, redundancy resolution) centralized in the gateway. This segmentation allows simple components to maintain low complexity while still benefiting from advanced features provided by the gateway.

Inventive Principle:
Principle #1Segmentation

2Use of energy by moving object

If simple communication protocols are used by actuators and sensors, then power consumption is reduced, but the capabilities of modern communication protocols are not fully utilized

Engineering Contradiction:
Improvepower consumptionVSAvoidprotocol capability
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The gateway acts as an intermediary that handles complex protocol conversions and capabilities. Simple actuators and sensors can continue using basic protocols with low power consumption, while the gateway translates these to complex protocols when communicating with powerful components like infotainment systems, thus providing full protocol capability without forcing simple components to adopt complex protocols.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The gateway provides universal communication capability by supporting multiple data formats and protocols simultaneously. It can receive simple formats from low-power components and convert them to complex formats for powerful components, making the system universally compatible without requiring each component to support all protocols.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If redundant information is transmitted between vehicle components, then data availability is improved, but communication efficiency is reduced

Engineering Contradiction:
Improvedata availabilityVSAvoidcommunication efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The gateway serves as a mediator that receives data from multiple sources, resolves redundancies by identifying and consolidating duplicate information, and forwards only necessary data to destinations. This maintains data availability through intelligent routing while improving communication efficiency by eliminating redundant transmissions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The gateway changes the state of data by resolving redundancies - it analyzes incoming data streams, identifies redundant information, and transforms the data set by removing duplicates while preserving necessary information. This parameter change (from redundant to optimized data) improves communication efficiency without sacrificing data availability.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3878154B1Data mediation apparatus for a vehicle, and corresponding method, system, and program
Publication Date: 2026.03.11 VOLKSWAGEN AG
  • EP3878154B1 patent drawingFigure 1a~1b
  • EP3878154B1 patent drawingFigure 2a~2b
  • EP3878154B1 patent drawingFigure 3a~3b

AI summary

The present invention relates to a data switching device and a data switching method for a vehicle, to a device and a method for a vehicle component of a vehicle, and to a computer program. The data switching device (10) comprises at least one interface (12), designed for communication with a first plurality (30) of vehicle components of the vehicle (100) and for communication with a second plurality (40) of vehicle components of the vehicle (100). The data switching device (10) also comprises a control module (14), designed for communication with the first plurality (30) of vehicle components of the vehicle on the basis of at least one first data format and with the second plurality of vehicle components (40) of the vehicle on the basis of at least one second data format. The control module (14) is designed to provide a communication interface for communication between the first plurality (30) of vehicle components and the second plurality (40) of vehicle components. The control module (14) is designed to provide access to first information of the first plurality (30) of vehicle components by providing second information for the second plurality (40) of vehicle components. The first information is based on the at least one first data format. The second information is based on the at least one second data format.