Mobile Object Program Updates with Hood-Opening Battery Alerts
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Solution Overview
Problem
The challenge of preventing the disconnection of a low-voltage battery during program updates in mobile objects, such as vehicles, due to maintenance or user forgetfulness, which can disrupt the update process and cause system failures.
Innovation Solution
A system that detects when the hood of the storage compartment containing the battery is opened during program updates and provides notices to the user via various means, including display devices and audible alerts, to prevent battery disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the hood is opened during program rewriting to access the battery for maintenance, then ease of maintenance is improved, but the rewriting process is interrupted and reliability deteriorates
Solution Approach 1:
The system performs preliminary detection of hood opening status before and during the rewriting process. By detecting hood opening in advance and providing warnings to users, the system allows maintenance personnel to complete battery maintenance before rewriting starts, or to close the hood before rewriting begins, thus preventing interruption while maintaining ease of access for maintenance.
Solution Approach 2:
The system provides real-time feedback to users through warnings and notifications when the hood is opened during rewriting. This feedback mechanism informs users of the potential risk and allows them to take corrective actions (closing the hood or aborting maintenance), thereby resolving the contradiction between maintenance access and rewriting reliability.
2Productivity
If the rewriting control is performed during vehicle operation, then productivity is improved, but safety deteriorates due to potential battery disconnection
Solution Approach 1:
The system performs preliminary checks of hood status and provides warnings before initiating rewriting during vehicle operation. This allows the system to verify that maintenance is complete and the hood is closed before proceeding, thus enabling productivity improvement while mitigating safety risks through advance preparation.
Solution Approach 2:
The hood detection mechanism acts as an intermediary between the maintenance state and the rewriting process. It provides a safety buffer by detecting potential hazards (open hood) and preventing rewriting execution until the hazard is eliminated, thus mediating between productivity goals and safety requirements.
Data Source
AI summary
A mobile object comprises an acquisition processor acquiring new program from an external apparatus via a network; a rewriting control processor performing a rewriting control of rewriting a program of an electronic control unit equipped with the mobile object, the rewriting being performed by using the acquired new program during drive of the mobile object is disabled; a storage compartment covered by a hood; and a battery stored in the storage compartment and configured to supply electrical power to the rewriting control processor and the electronic control unit. The rewriting control processor detects whether the hood is opened during performing the rewriting control, and when it is detected that the hood is opened during performing the rewriting control, provides a notice to a user.