Vehicle ECU Diagnostic Setting Verification Mechanism
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Solution Overview
Problem
Existing vehicle control systems lack a mechanism to ensure correct diagnostic settings for communication between vehicle control devices, which is crucial for safety and functionality, as they are differently configured based on vehicle types and user-selected functions.
Innovation Solution
A vehicle control device that exchanges communication data with other devices via a network, including a storage unit for diagnostic settings, a data generation unit, a transmission processing unit, a reception processing unit, and a diagnostic setting checking unit to compare and verify diagnostic settings between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vehicle control systems are configured differently depending on vehicle types and user-selected functions, then the system can be adapted to various vehicle configurations, but the diagnostic settings for communication between control devices cannot be verified for correctness
Solution Approach 1:
The system performs preliminary verification of diagnostic settings by having the transmitting ECU send its diagnostic setting information to the receiving ECU before actual communication operations. The receiving ECU then verifies whether its own diagnostic settings match the transmitted information, detecting any mismatches before they cause communication failures or safety issues.
Solution Approach 2:
The system implements a feedback mechanism where the receiving ECU sends verification results back to the transmitting ECU. When diagnostic settings are found to be inconsistent, the system can notify relevant parties and prevent incorrect communication operations, creating a closed-loop verification system that ensures reliability across different vehicle configurations.
2Reliability
If a mechanism is added to verify diagnostic settings between ECUs, then communication safety can be secured, but the system complexity increases
Solution Approach 1:
The verification mechanism utilizes the existing communication infrastructure between ECUs to perform self-verification. Each ECU serves dual purposes: as a communication device and as a verification device. The receiving ECU uses its own diagnostic settings to verify the transmitted settings, eliminating the need for separate verification hardware or external diagnostic tools.
Solution Approach 2:
The diagnostic setting information transmission and verification mechanism can be applied universally across different ECU types and vehicle configurations. The same verification protocol works for various communication scenarios (diagnostic communication, control data transmission, etc.), making the system scalable and adaptable without requiring configuration-specific verification mechanisms.
Data Source
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AI summary
It is checked whether or not diagnostic settings for communication between vehicle control devices configuring a vehicle control system are correct on both a transmission side and a reception side. The vehicle control device according to the present invention includes: a storage unit for storing first diagnostic setting information concerning communication data; a diagnostic setting information transmit data generation unit for generating first diagnostic setting information transmit data based on the first diagnostic setting information; a transmission processing unit for transmitting the first diagnostic setting information transmit data to another vehicle control device via the network; a reception processing unit for obtaining second diagnostic setting information transmit data transmitted from the other vehicle control device via the network; and a diagnostic setting checking unit for executing a diagnostic setting checking process, the diagnostic setting checking process including extracting second diagnostic setting information concerning the communication data from the second diagnostic setting information transmit data, comparing the first diagnostic setting information with the second diagnostic setting information, and storing a diagnostic setting check result obtained by the comparison in the storage unit.