Dual-Storage Backup Power Control for Prioritized On-Board Loads
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Solution Overview
Problem
Existing power storage systems are limited in backup power supply methods as they rely on a single power source, restricting the flexibility and prioritization of power distribution to multiple loads.
Innovation Solution
An on-board backup control apparatus that utilizes two power storage portions, with a control unit to prioritize power distribution to a first load over a second load by selectively switching between power sources through conductive paths and conversion units, ensuring uninterrupted power supply to critical loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one power storage portion supplies power to a load during backup, then the system is simple to control, but the method for supplying power is limited and lacks flexibility
Solution Approach 1:
The patent segments the power storage system into multiple independent power storage portions (first power storage portion and second power storage portion), each capable of independently supplying power to loads. This segmentation enables flexible power supply configurations where different combinations of power storage portions can serve different loads based on system requirements, thereby improving adaptability without requiring a completely complex control system.
Solution Approach 2:
The patent implements dynamic power supply control where the control unit can dynamically select which power storage portion supplies power to which load based on real-time system conditions. The system can dynamically switch between single power storage portion operation and multiple power storage portions operating simultaneously, providing flexibility while maintaining manageable control complexity through adaptive configuration.
2Adaptability or versatility
If multiple power storage portions supply power to multiple loads simultaneously, then power distribution flexibility increases, but prioritization control becomes difficult
Solution Approach 1:
The patent applies local quality by assigning different priorities to different loads (first load with higher priority, second load with lower priority) and implementing load-specific power supply control. The control unit independently manages power allocation to each load based on its priority level, enabling straightforward prioritization control even when multiple power storage portions are operating simultaneously. This localized control approach simplifies the overall prioritization logic.
Solution Approach 2:
The control unit acts as an intermediary that mediates between multiple power storage portions and multiple loads with different priorities. It receives power supply requests from loads, determines priority levels, and selectively activates appropriate power storage portions to meet the prioritized demands. This intermediary control mechanism simplifies prioritization by centralizing the decision-making logic in a single control unit that manages the entire power distribution hierarchy.
3Reliability
If a single power source supplies backup power, then the system is easier to manage, but system resilience and reliability are reduced
Solution Approach 1:
The patent merges multiple power storage portions (first power storage portion and second power storage portion) into a unified backup power system that can operate independently or in combination. This merging provides redundancy and improved reliability because if one power storage portion fails or is insufficient, the other can compensate. The system combines the capabilities of multiple power storage units while maintaining manageable complexity through integrated control.
Solution Approach 2:
The patent implements beforehand cushioning by preparing multiple power storage portions in advance to provide backup power capacity. The system pre-configures redundant power storage resources that can be activated when the primary power source fails or when additional backup capacity is needed. This prior preparation of multiple power storage portions enhances system resilience and reliability by ensuring adequate backup power availability without requiring complex real-time decision-making during failures.
Data Source
AI summary
An on-board backup control apparatus includes: a first supply circuit that can output power based on a first power storage portion to a load via a first conductive path; a second supply circuit that can output power based on a second power storage portion to a load via a second conductive path; and a first control unit and a second control unit that cause the first supply circuit and the second supply circuit to perform a backup operation during an external state. During the external state, the first control unit and the second control unit execute predetermined prioritizing control for prioritizing a first backup operation of supplying power based on the second power storage portion to the load over a second backup operation of supplying power based on the second power storage portion to the load.