Electrical Module Control for Low-Loss Multi-Battery Switching
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Solution Overview
Problem
Existing systems for selecting an appropriate power source for electronic devices in vehicles do not efficiently manage power loss across multiple batteries with different output voltages, leading to suboptimal performance and energy efficiency.
Innovation Solution
An electrical module with a controller that determines the power requirements of an external device and calculates the power losses associated with multiple batteries, automatically selecting the battery with the lowest power loss to supply electrical current, thereby optimizing power delivery and minimizing losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a system uses multiple batteries with different output voltages to power external devices, then the system can provide continuous power supply and increased reliability, but the system experiences increased power loss and reduced energy efficiency
Solution Approach 1:
The system dynamically changes the operating parameters by selecting different batteries based on their output voltages and the power requirements of external devices. The controller calculates power loss for each battery-device combination and selects the optimal pairing, thereby minimizing energy loss while maintaining reliable power supply.
Solution Approach 2:
The system implements dynamic battery selection rather than a fixed configuration. The controller continuously monitors power requirements and power loss characteristics, automatically switching between different battery devices to optimize energy efficiency while ensuring continuous power availability.
2Loss of energy
If the system automatically selects the optimal battery based on power loss calculations, then energy efficiency is improved, but the device complexity increases due to additional control circuitry
Solution Approach 1:
The system performs self-optimization by automatically calculating power loss for each battery configuration and selecting the most efficient option without external intervention. The controller autonomously monitors system parameters and makes real-time decisions to minimize power loss, reducing the need for complex external control mechanisms.
Solution Approach 2:
The system implements a feedback mechanism where the controller continuously monitors power requirements of external devices and calculates the corresponding power loss for each battery. This feedback loop enables the system to adaptively select the optimal battery configuration, balancing energy efficiency with manageable system complexity.
Data Source
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AI summary
An electrical module (10) is configured for connection with a first battery (12), a second battery (14), and an external electrical device (18a, 18b). The electrical module (10) includes a first switch (40a), a second switch (40b), and a controller (30) electrically connected to the first switch (40a) and the second switch (40b). The controller (30) is configured to determine at least one of a power requirement of, or an electrical load drawn by, the external electrical device (18a, 18b). In response to determining the at least one of the power requirement of, or the electrical load drawn by, the external electrical device (18a, 18b), the controller (30) is configured to determine (i) a first power loss associated with the first battery (12) and (ii) a second power loss associated with the second battery (14). The controller (30) is configured to automatically select the first battery (12) to supply electrical current to the external electrical device (18a, 18b) based on the first power loss being less than the second power loss.