Remote Access Server for Vehicle Diagnostics
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Solution Overview
Problem
Current vehicle diagnostic systems often lack the capability for comprehensive remote access and on-site fault determination, especially in situations where specialized tools or personnel are not available, leading to inefficiencies in diagnosing and repairing vehicle issues.
Innovation Solution
A method and system enabling remote access to vehicle on-board control devices through a remote access server and communication device, which switches between data transmission and remote access modes, allowing authorized access and enabling remote diagnostics, maintenance, and control via an intermediate server, even when a direct connection is not possible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If comprehensive remote access to on-board control devices is implemented, then diagnostic capability is improved, but security risk increases
Solution Approach 1:
The patent introduces a remote access server as an intermediary component that mediates all access requests to on-board control devices. This server implements security policies, authentication mechanisms, and access control, allowing comprehensive remote diagnostics while maintaining security through a controlled intermediary layer rather than direct access.
Solution Approach 2:
The system segments access rights by dividing the vehicle's control devices into different groups with varying levels of access permission. The remote access server can grant selective access to specific control devices or data sets based on diagnostic needs, allowing comprehensive diagnostics while limiting exposure to only necessary components, thus reducing security risk.
2Productivity
If remote access mode is activated for comprehensive diagnostics, then fault determination speed is improved, but energy consumption increases
Solution Approach 1:
The communication device dynamically switches between data transmission mode and remote access mode based on diagnostic requirements. Remote access mode, which enables comprehensive diagnostics and faster fault determination, is activated only when needed rather than continuously, thus reducing overall energy consumption while maintaining high productivity when required.
Solution Approach 2:
The system uses periodic data transmission mode interspersed with selective remote access mode activations. Instead of maintaining continuous remote access connection, the system periodically switches to remote access mode only when comprehensive diagnostics are needed, allowing fast fault determination at specific moments while conserving energy during normal operation.
3Ease of operation
If remote access server is introduced for vehicle diagnostics, then on-site diagnostic capability is improved, but system complexity increases
Solution Approach 1:
The remote access server is designed as a universal platform that can access and diagnose multiple different vehicle types and on-board control devices through standardized protocols. This multi-functional server handles various diagnostic tasks, communication protocols, and vehicle specifications, reducing the need for multiple specialized systems and thereby managing complexity through consolidation.
4Reliability
If activation message mechanism is implemented for mode switching, then access security is improved, but communication overhead increases
Solution Approach 1:
The system implements preliminary authentication and authorization through activation messages before enabling remote access mode. Security credentials, access rights, and authentication tokens are verified in advance through the activation message exchange, ensuring secure access before the actual diagnostic operations begin, thus preventing unauthorized access while managing communication overhead through pre-validation.
Data Source
AI summary
The present invention relates to various methods, devices (20, 30, 40) and systems (100) for remotely accessing a vehicle (10).