Battery Relay Lockout Control After High-Power State Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power supply control systems in electric vehicles fail to prevent the high-power state from reverting to an active state after it has been released, leading to inefficiencies and potential battery discharge.
Innovation Solution
A power supply control method that includes switching a relay from an on state to an off state and inhibiting it from switching back to the on state using a controller, based on specific signals, to maintain the high-power state release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power supply is continuously provided to maintain standby reception function, then reception quality is maintained, but power consumption increases
Solution Approach 1:
The power supply control device periodically switches the power supply to the tuner between ON and OFF states based on whether broadcast waves are being received. During active reception, power is continuously supplied; during standby, power is cut off and restored only when needed, converting continuous power consumption into periodic power supply while maintaining reception functionality.
Solution Approach 2:
The system uses the reception determination unit to automatically detect whether broadcast waves are being received and autonomously control the power supply switching without user intervention. The television set itself monitors its own reception state and triggers power supply restoration when standby mode is detected, enabling self-service operation.
2Use of energy by moving object
If power supply is cut off during standby to reduce power consumption, then power consumption decreases, but reception function cannot be restored when needed
Solution Approach 1:
The reception determination unit continuously monitors the tuner's reception state and provides feedback to the power supply control device. When the feedback indicates that broadcast waves are being received or that standby reception is needed, the power supply control device restores power to the tuner, ensuring the reception function is available when required while maintaining power savings during true standby.
Solution Approach 2:
The system performs preliminary detection of reception state before completely cutting off power supply. By monitoring whether broadcast waves are being received in advance, the system can prepare to restore power quickly when standby reception becomes necessary, preventing complete loss of reception functionality.
3Speed
If multiple components are kept in standby mode to enable quick function restoration, then function restoration speed improves, but power consumption increases
Solution Approach 1:
Instead of maintaining continuous standby power supply to multiple components, the system implements periodic power supply control based on actual reception needs. Power is supplied to the tuner only during active reception or when standby reception is detected, and cut off during true standby, achieving quick restoration only when necessary rather than maintaining constant readiness.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A power supply control device (100) includes a high-power battery (12), a low-power battery (15), a relay (13) that electrically connects the high-power battery (12) and the low-power battery (15), a power supply switch (11), and a controller (10) that controls an on/off state of the relay (13). When a power supply state is a state in which power is supplied from the high-power battery (12) to the low-power battery (15) with the relay (13) therebetween, if the controller (10) receives a first signal, the controller (10) switches the relay (13) from an on state to an off state, and then inhibits the relay (13) from switching from the off state to the on state.