Vehicle Power Compartment Locking During Software Updates
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Solution Overview
Problem
Existing vehicle software update systems are prone to abnormalities when power supply is interrupted during updates due to users removing the power cable during the update process.
Innovation Solution
A vehicle configuration with a locking mechanism for the power supply compartment that remains locked during software updates, preventing the power cable from being disconnected, using a control device to manage the locking mechanism's state and disable unlocking signals during updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the opening and closing body is made unlockable during software updates, then user accessibility to the power supply device is improved, but the reliability of the software update process deteriorates due to potential power interruptions
Solution Approach 1:
The system applies preliminary anti-action by detecting the start of a software update process and proactively preventing the opening and closing body from being unlocked during this critical period. The control device monitors update status and blocks unlock commands, thereby preventing potential power interruptions before they can occur. This ensures the software update completes reliably while still allowing user accessibility after the update finishes.
2Reliability
If the locking mechanism is kept locked during software updates, then the reliability of power supply is improved, but the ease of operation for accessing the power supply device deteriorates
Solution Approach 1:
The locking mechanism transitions from a static always-locked state to a dynamic state that adapts based on software update status. During normal operation, the opening and closing body remains unlockable for user accessibility. When a software update is detected, the system dynamically changes the locking state to prevent unlocking, ensuring power supply stability only when necessary. After update completion, the system dynamically reverts to the unlockable state, balancing reliability and ease of operation.
3Ease of operation
If the power cable can be removed during software updates, then user convenience is improved, but the completion rate of software updates deteriorates due to power interruptions
Solution Approach 1:
The control device implements feedback by continuously monitoring the software update status and using this information to control the locking mechanism. When the system detects that a software update is in progress, it provides feedback to the locking mechanism to maintain the locked state, preventing cable removal. Once the update completes successfully, the feedback signal changes and the locking mechanism becomes unlockable again. This feedback loop ensures high update completion rates while maintaining user convenience during normal operation.
Data Source
AI summary
A vehicle for updating software used in an in-vehicle device by using update data received by wireless communication, the vehicle comprising: a power supply device; a housing portion for housing the power supply device; and a control device, wherein the housing portion includes an opening portion, an opening and closing body, and a locking mechanism for locking the opening and closing body in a state in which the opening and closing body closes the opening portion, wherein the control device is capable of executing a process of updating the software by receiving a supply of power from the power supply device, a process of switching the locking mechanism between a locked state and an unlocked state, and a process of switching the locking mechanism from the locked state to the unlocked state during the update of the software.