Inter-Vehicle Power Feed Priority Control to Prevent Power Shortage
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Solution Overview
Problem
Existing vehicle power supply systems lack the ability to accurately determine the amount of power transmission and prioritize power reception among multiple vehicles, leading to potential power shortages due to the lack of consideration for future power consumption during power transmission.
Innovation Solution
An inter-vehicle power feed system that includes an external charger with an amount-of-power calculator, power reception necessity determiner, power transmission permissibility determiner, and power transmission determiner, which calculates the necessary power for each vehicle, determines power transmission and reception necessity, and prioritizes power reception based on calculated results, preventing power shortages by ensuring only the necessary amount of power is transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power transmission is performed without calculating necessary power amount, then power transmission speed is fast, but power shortage occurs due to insufficient power management
Solution Approach 1:
The system performs preliminary calculation of necessary power amounts before power transmission occurs. The amount-of-power calculator computes required power based on battery capacity and usage patterns in advance, allowing the power transmission controller to make informed decisions about power allocation and transmission timing, thereby ensuring reliable power supply while maintaining manageable system complexity
Solution Approach 2:
The system implements feedback mechanisms where power reception necessity determiners and power transmission permissibility determiners continuously monitor battery states and adjust power transmission decisions based on calculated necessary power amounts. This feedback loop ensures that power transmission maintains reliability by adapting to actual power needs while keeping management complexity controlled through automated decision-making
2Productivity
If multiple vehicles request power reception simultaneously, then power demand increases, but power allocation becomes uncertain without priority determination
Solution Approach 1:
The system segments the power allocation problem by introducing priority levels for different vehicles requesting power reception. The power transmission determiner divides the allocation decision into hierarchical stages: first determining priority based on battery capacity and usage patterns, then allocating power accordingly. This segmentation transforms the complex multi-vehicle allocation problem into manageable discrete decisions, improving reception efficiency while preserving allocation information
Solution Approach 2:
The system applies local quality by providing differentiated power allocation based on individual vehicle characteristics and needs. Each vehicle receives power according to its specific priority level determined by its battery state and usage patterns, rather than uniform allocation. This ensures that vehicles with more urgent needs receive appropriate power first, optimizing overall system productivity while maintaining accurate tracking of power allocation information
Data Source
AI summary
A vehicle includes an amount-of-power calculator, a power reception necessity determiner, a power transmission permissibility determiner, and a power transmission determiner. The amount-of-power calculator calculates an amount of necessary power for the vehicle. The power reception necessity determiner determines whether or not power reception of the vehicle from one or more other vehicles is necessary. The power transmission permissibility determiner determines whether or not power transmission from the vehicle to the one or more other vehicles is permissible. When two or more out of the vehicle and the one or more other vehicles make requests for the power reception, the power transmission determiner compares calculation results of the amount-of-power calculator of the vehicle and respective amount-of-power calculators of the one or more other vehicles, to determine priority of the power reception of the vehicle and the one or more other vehicles.