Vehicle Software Update Management via Server Manifest
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Solution Overview
Problem
Existing vehicle computing systems require manual intervention for updating application files, which is inefficient and may not ensure timely updates, especially during regular maintenance or when diagnostic codes are set, necessitating the replacement of entire application files.
Innovation Solution
A system and method for wirelessly updating one or more application files in a vehicle computing system using a transceiver to communicate with a server, where a processor receives a file manifest, transmits a list of to-be-updated files, and flashes the files based on destination, installation type, and file identification, enabling remote management and transparency to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual intervention is required for updating application files, then system security and control are maintained, but update efficiency and timeliness deteriorate
Solution Approach 1:
The vehicle computing system automatically detects its own software version, queries the server for update information, downloads updates, and installs them without requiring manual user intervention. The system serves itself by autonomously managing the entire update lifecycle from detection to installation.
Solution Approach 2:
The system performs preliminary actions by automatically detecting software version mismatches before updates are needed, pre-querying the server for available updates, and preparing update files in advance. This ensures updates are ready and can be applied immediately when needed, improving timeliness.
2Reliability
If entire application files are replaced during maintenance, then system reliability is ensured, but maintenance time and complexity increase
Solution Approach 1:
Instead of replacing entire application files, the system extracts and updates only the specific modules or components that require updates. The server provides selective update packages containing only the necessary changes, reducing the amount of data transferred and installed while maintaining reliability.
Solution Approach 2:
The system applies partial updates rather than complete replacements, updating only the specific application files or modules that have changed. This partial action approach reduces maintenance time and data handling requirements while still ensuring system reliability through targeted updates.
3Loss of time
If remote update capability is implemented, then update timeliness is improved, but system complexity and security requirements increase
Solution Approach 1:
A server acts as an intermediary between the vehicle computing system and the update source. The server handles complex tasks such as version comparison, update package generation, and secure file transmission, while the vehicle system maintains relatively simple client-side functionality for querying and installing updates.
Solution Approach 2:
The server provides universal update management capabilities that can serve multiple vehicle systems simultaneously. It handles version detection, update generation, secure transmission, and installation coordination through a single multi-functional platform, reducing overall system complexity.
4Ease of operation
If wireless communication is used for updates, then ease of operation is improved, but data transmission security risks increase
Solution Approach 1:
The system implements feedback mechanisms where the vehicle computing system sends version information to the server, receives confirmation of update receipt, and verifies installation completion. This feedback loop ensures secure and reliable updates while maintaining ease of operation through automated verification processes.
Solution Approach 2:
The system prepares for security risks by implementing pre-verification of update sources, using secure communication protocols before data transmission, and preparing rollback mechanisms in case of transmission failures or security issues. This beforehand cushioning protects against security risks while maintaining wireless update convenience.
Data Source
AI summary
A vehicle software management system includes a transceiver configured to communicate information with a server, and a processor in communication with the transceiver. The processor may be configured to receive a file manifest from the server and transmit a list of to-be updated application file(s) based on the file manifest to the server. The processor may be further configured to receive one or more application files from the server based on the list. The processor may be further configured to flash one or more systems using the one or more application files based on at least one of destination file location, installation type, and file identification.