Dual-Battery Communication Control for Main Battery Disconnection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In-vehicle communication devices face challenges in reliable electricity supply methods, particularly during disconnection from the main battery, which can interrupt critical functions like emergency reporting.
Innovation Solution
The communication device employs a dual-battery system where it can switch to an internal auxiliary battery for power when the external main battery is disconnected, allowing continuous operation and reporting, with distinct modes for factory inspection and market use to optimize battery usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication device uses only the external main battery for power supply, then the device structure is simple, but the operation is interrupted when the external battery is disconnected
Solution Approach 1:
The patent combines the external main battery and internal auxiliary battery into a unified power supply system. The control unit integrates both battery sources and automatically switches between them based on availability, ensuring continuous operation while maintaining a coordinated dual-battery architecture rather than separate independent systems.
Solution Approach 2:
The auxiliary battery is pre-charged during factory inspection before being installed in the vehicle. This preliminary charging action ensures that when the main battery disconnects during an accident, the auxiliary battery is already ready to immediately take over power supply without requiring time to charge, thus maintaining operation continuity.
2Reliability
If the communication device switches to internal auxiliary battery when external battery disconnects, then operation continuity is ensured, but the auxiliary battery may be depleted during factory inspection
Solution Approach 1:
The patent implements dynamic power supply mode switching based on the operational context. In factory inspection mode, the system dynamically charges the auxiliary battery during inspection processes. In vehicle operation mode, the system dynamically switches to auxiliary battery power when the main battery disconnects. This dynamic adaptation optimizes energy usage based on real-time conditions.
Solution Approach 2:
The control unit changes the operational parameters of the auxiliary battery based on the detected mode (factory inspection vs. vehicle operation). During factory inspection, the system adjusts parameters to charge the auxiliary battery. During vehicle operation with main battery disconnection, it adjusts parameters to discharge the auxiliary battery for power supply, thus optimizing energy consumption in each context.
3Productivity
If the communication device activates continuously during factory inspection, then inspection completeness is improved, but the auxiliary battery charge level decreases
Solution Approach 1:
The patent enables continuous activation of the communication device during factory inspection to complete all necessary tests and inspections. The system maintains continuous operation of communication functions, processing units, and testing mechanisms without interruption, ensuring comprehensive inspection coverage while the auxiliary battery is being charged during this period.
Solution Approach 2:
The system performs beforehand cushioning by charging the auxiliary battery during the factory inspection period. This prior energy accumulation cushions against the energy depletion that would occur during continuous inspection operations, ensuring that sufficient charge remains for post-installation emergency operations after the vehicle leaves the factory.
Data Source
AI summary
A communication device includes: a communication unit; and a control unit that executes an activation process by receiving electricity supply from an external battery or sends a report through the communication unit by receiving electricity supply from an internal battery instead of the external battery, when an electric power source is turned on, in which the control unit has a first mode in which the control unit continues the activation process by the electricity supply from the internal battery, when the electricity supply from the external battery is stopped during the execution of the activation process.