Gateway Device Identification Information Conversion for Vehicle Diagnostics
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Solution Overview
Problem
The increasing diversification of diagnosis tools and the number of electronic control units (ECUs) in vehicles leads to a depletion of available identification information for diagnosis purposes, complicating the diagnosis-related processes in ECUs.
Innovation Solution
A gateway device that includes request and response conversion portions to convert identification information between different diagnosis tools and ECUs, allowing for simplified diagnosis processes and preventing the depletion of identification information by relaying diagnosis requests and responses across various ECUs connected to different local area networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of diagnosis tools and ECUs increases, then the diagnostic capability and coverage are improved, but the available identification information for diagnosis purposes depletes
Solution Approach 1:
The gateway device serves as an intermediary between diagnosis tools and ECUs, converting identification information in diagnosis requests and responses. This mediator approach allows multiple diagnosis tools with different ID schemes to communicate with ECUs using a standardized identification system, effectively preventing the depletion of identification information while supporting diverse diagnostic capabilities.
2Adaptability or versatility
If the number of identification informations for diagnosis purpose increases, then the diagnostic versatility is improved, but the diagnosis related process in ECU becomes complicated
Solution Approach 1:
The identification information conversion function is extracted from the ECU and relocated to the gateway device. This extraction removes the complexity of handling multiple identification schemes from the ECU's diagnosis process, while the gateway handles the conversion of identification information between different diagnosis tools and the standardized ECU interface.
Solution Approach 2:
The gateway acts as a mediator that translates between various diagnosis tool identification schemes and the standardized ECU identification system. This intermediary function allows ECUs to maintain simple, standardized diagnosis processes while supporting multiple diverse diagnosis tools through the gateway's conversion capabilities.
Data Source
AI summary
A gateway device includes a request receiving portion, a request storage, a request conversion portion, a request transmitting portion, a response receiving portion, a response storage, a response conversion portion, and a response transmitting portion. When receiving, from a first diagnosis purpose tool, a diagnosis request for performing a malfunction diagnosis to an ECU equipped to a vehicle, the gateway device relays a diagnosis request and a diagnosis response between the first diagnosis purpose tool and the ECU. When receiving, from a second diagnosis purpose tool, a diagnosis request for performing a malfunction diagnosis to the ECU equipped to the vehicle, the gateway device relays a diagnosis request and a diagnosis response between the second diagnosis purpose tool and the ECU after converting identification informations of the diagnosis request and the diagnosis response.