Vehicle Information Recording System for Failure Cause Identification
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Solution Overview
Problem
Existing vehicle failure diagnosis systems cannot sufficiently acquire and identify the cause of failures due to limited information storage and coordination with other devices.
Innovation Solution
A vehicle information recording system that includes a situation information acquisition unit, drive control unit, position information acquisition unit, failure determination unit, and storage unit, which collectively acquire and store situation, operation, and position information associated with vehicle failures to facilitate comprehensive failure analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a failure diagnosis apparatus only stores drive state information, then the storage requirement is simple, but the ability to identify failure causes is insufficient
Solution Approach 1:
The patent combines multiple information acquisition units (situation information acquisition unit, operation log acquisition unit, position information acquisition unit) and their corresponding storage units into a unified vehicle information recording system. This merging of previously separate diagnostic functions with additional information sources enables comprehensive failure analysis while maintaining organized data management through structured storage associations.
Solution Approach 2:
The storage unit is designed to store multiple types of information (situation information, operation logs, position information, and failure details) in association with one another. This multi-functional storage capability allows the system to serve both as a diagnostic tool and as a comprehensive data preservation system, enhancing failure identification without requiring separate specialized storage for each data type.
2Reliability
If the system acquires and stores multiple types of information (situation, operation, position), then the failure analysis capability is enhanced, but the storage requirement and system complexity increase
Solution Approach 1:
The system divides the information acquisition function into separate, dedicated units: situation information acquisition unit, operation log acquisition unit, and position information acquisition unit. Each unit is responsible for acquiring specific types of data, which then reduces the complexity of the overall system by making each component's function clear and manageable, while still achieving comprehensive data collection when all units operate together.
3Loss of information
If the system coordinates with multiple devices (dashboard camera, ECU, navigation apparatus), then the information acquisition capability is improved, but the coordination complexity increases
Solution Approach 1:
The patent introduces an information recording apparatus that acts as an intermediary to collect and store information from multiple external devices (dashboard camera, ECU, navigation apparatus). This intermediary role simplifies the coordination complexity by providing a centralized collection point that manages the data flow from various sources, reducing the need for direct complex interactions between all devices while ensuring comprehensive information acquisition.
Data Source
AI summary
A vehicle information recording system according to the present disclosure includes a situation information acquisition unit, a drive control unit, a position information acquisition unit, a failure determination unit, and a storage unit. The situation information acquisition unit acquires situation information about inside and outside a vehicle. The drive control unit outputs an operation log of the vehicle. The position information acquisition unit acquires position information of the vehicle. The failure determination unit determines whether there is occurrence of a failure in the vehicle or not. The storage unit stores, in association with one another, in a case where occurrence of a failure in the vehicle is determined by the failure determination unit, details of the failure, the situation information, the operation log, and the position information.