Remote Vehicle Diagnostic Aid System for Electronic Computer Inventory
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Solution Overview
Problem
Current vehicle diagnostic procedures are complex and time-consuming due to the need for physical connection of dedicated tools to vehicles, making remote inventory and error detection of onboard electronic computers inefficient.
Innovation Solution
A method for remote vehicle diagnosis involving downloading a list of computers from a vehicle database, determining communication protocols, sending diagnostic requests, and updating a diagnostic database, allowing for remote inventory and error detection independently of dealership tools, with options for sequential or simultaneous request sending and protocol determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dedicated diagnostic tool is physically connected to the vehicle to carry out an inventory of electronic computers, then the diagnosis can be performed with complete access to vehicle data, but the procedure becomes time-consuming and requires physical presence at the dealership
Solution Approach 1:
The system performs the inventory procedure in advance by automatically querying all electronic computers in the vehicle and storing their data (identifiers, versions, fault codes) in a database before the vehicle arrives at the dealership. This preliminary action eliminates the need to perform the time-consuming inventory procedure at the dealership, while still maintaining complete data collection capability.
2Adaptability or versatility
If multiple diagnostic protocols are supported for different electronic computers, then the system can communicate with diverse vehicle components, but the complexity of the diagnostic system increases
Solution Approach 1:
The diagnostic system is designed with multi-functionality to handle multiple communication protocols (ISO 14229, ISO 15765-2, ISO 15765-3, ISO 13400) through a single unified interface. The system can automatically select and switch between different protocols when querying various electronic computers, providing universal compatibility without requiring separate diagnostic tools for each protocol type.
3Ease of operation
If the diagnostic system maintains a local configuration database of all possible vehicle computers, then it can independently diagnose any vehicle model, but the system size and data storage requirements increase
Solution Approach 1:
The system introduces an intermediary element - a remote server - that hosts the comprehensive vehicle configuration database. The local diagnostic equipment communicates with this server to retrieve protocol-specific information and computer configurations as needed, rather than storing all data locally. This mediator approach enables independent operation with access to complete vehicle data while keeping the local system size manageable.
Data Source
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AI summary
The invention concerns a method for aiding the remote diagnosis of a vehicle, implemented by a diagnostic aid device, comprising the following steps: - Downloading (31) a list of computers from a vehicle database, - Determining (32), for each computer of the list, a communication protocol for interacting with said computer, - Sending (33), for each computer, at least one diagnosis request according to the determined communication protocol, - Receiving (34) at least one response to the sent diagnosis request, - Updating (35) a diagnostic database from the received response.