Vehicle OTA Update Program Switching for Manned Unmanned Travel
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Solution Overview
Problem
In vehicles capable of automated driving, existing Over-The-Air (OTA) update systems for diagnosis programs can detect both actual and potential failures, leading to increased false positives when a user is on board, causing unnecessary restrictions or anxiety, as the programs become more sensitive to detect potential issues.
Innovation Solution
A vehicle system that switches between two types of update programs based on whether a user is on board, using a more sensitive program for unmanned travel to detect potential failures without causing user disadvantages, and a less sensitive program for manned travel to focus on actual failures, with narrower threshold ranges for potential failure detection during unmanned travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the diagnosis program is made sensitive to detect potential failures, then the detection capability is improved, but false positives increase causing user disadvantage
Solution Approach 1:
The patent segments the update program into two distinct versions: a first update program for unmanned vehicle traveling with sensitive detection parameters, and a second update program for manned vehicle traveling with less sensitive parameters. This segmentation allows the system to apply different detection thresholds based on the operational context, thereby improving detection capability when no user is present while avoiding false alarms that would disadvantage users when they are on board.
Solution Approach 2:
The patent implements dynamic switching between different update programs based on the vehicle's operational state (manned vs. unmanned). The controller determines whether a user is on board and dynamically selects the appropriate update program accordingly. This dynamic adaptation resolves the contradiction by adjusting the detection sensitivity in real-time to match the operational context.
2Measurement precision
If the threshold range is narrowed to detect potential failures, then detection precision is improved, but false alarms increase
Solution Approach 1:
The patent applies local quality by setting different threshold range characteristics in different operational contexts. The first update program (for unmanned travel) employs a narrower threshold range to achieve high detection precision for potential failures. The second update program (for manned travel) uses a wider threshold range to maintain system reliability and avoid false alarms. Each context receives the locally optimized threshold configuration appropriate to its needs.
Data Source
AI summary
When a traveling state of a vehicle is switched, the vehicle requests delivery of an update program from an OTA server. For example, when the vehicle travels with an occupant on board, the vehicle requests delivery of an update program for manned vehicle traveling from the OTA server. When the vehicle travels with an occupant not on board, the vehicle requests delivery of an update program for unmanned vehicle traveling from the OTA server. When the OTA server receives the request for delivery of the update program for manned vehicle traveling/unmanned vehicle traveling, the OTA server delivers the requested update program for manned vehicle traveling/unmanned vehicle traveling to the vehicle. The vehicle updates a diagnosis program using the received update program for manned vehicle traveling/unmanned vehicle traveling.