Dual-Battery Switching Layout for Stable Multi-Area Power Supply
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Solution Overview
Problem
The existing 12V power supply systems for vehicles, which divide power into multiple areas with a battery in each, face challenges such as increased space requirements, weight, and decreased fuel efficiency, along with higher costs due to the need for multiple batteries for redundancy and voltage stabilization.
Innovation Solution
A power supply system comprising a main battery and a separate sub-battery, with switching sections and a control unit that allow power supply from both batteries to be switched on and off in each area, eliminating the need for individual power output sections in each area and enabling low-cost stabilization of power supply voltages and redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery is arranged in each subsystem to stabilize power supply voltage and achieve redundancy, then power supply stability and redundancy are improved, but device complexity, weight, and cost increase
Solution Approach 1:
The patent merges multiple power supply functions into a single battery system with centralized control. Instead of distributing batteries across subsystems, one battery serves multiple subsystems through a control unit that manages power distribution, thereby reducing overall system complexity while maintaining power supply stability and redundancy
Solution Approach 2:
The single battery system is designed to serve multiple subsystems simultaneously, making it a universal power source. The control unit enables this battery to function as multiple power output sections, providing voltage stabilization and redundancy across different areas without requiring dedicated batteries for each subsystem
2Reliability
If a battery is arranged in each subsystem to stabilize power supply voltage and achieve redundancy, then power supply stability and redundancy are improved, but weight increases and fuel efficiency decreases
Solution Approach 1:
The patent combines multiple power supply units into a single battery system, directly reducing the total weight by eliminating redundant battery masses while maintaining power supply stability through centralized control and voltage regulation across multiple subsystems
3Reliability
If a battery is arranged in each subsystem to stabilize power supply voltage and achieve redundancy, then power supply stability and redundancy are improved, but manufacturing cost increases
Solution Approach 1:
The patent consolidates multiple power supply components into a single battery system with centralized control, reducing the number of parts that need to be manufactured, assembled, and tested. This merging approach lowers manufacturing costs while maintaining power supply stability and redundancy through the control unit's ability to manage power distribution across subsystems
Data Source
AI summary
An objective of the present invention is to provide a power supply system which enables stabilization of power supply voltages of multiple areas and/or redundancy to be achieved with low costs. A power supply system includes a main battery for providing power and a sub-battery which is separate from the main battery and provides power. The power supply system further includes switching boxes in first to fourth areas as a plurality of power supply areas configured to be supplied with power from the main battery and sub-battery, the switching boxes switching on/off states of power supplies into the first to fourth areas from the main battery and from the sub-battery. Furthermore, the power supply system includes a control section for switching control of the on/off states for the switching boxes.