Wireless Power Transmission Apparatus Dynamic Charging Capacity Allocation
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Solution Overview
Problem
Existing wireless power transmission systems face challenges in efficiently managing the charging capacity across multiple wireless power reception apparatuses, particularly in environments where the total power requested exceeds the capacity of the wireless power transmission apparatus, leading to inefficiencies and potential overcharging or undercharging.
Innovation Solution
A wireless power transmission apparatus equipped with a communication unit, controller, and power tracker that receives information on charging support power and requested power from each apparatus, determines optimal charging capacities, and reallocates power based on charging status and mode switching to ensure efficient charging within the available capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless power transmission apparatus charges multiple wireless power reception apparatuses simultaneously, then the charging service coverage is improved, but the power management complexity increases and efficiency decreases when total requested power exceeds transmission capacity
Solution Approach 1:
The patent segments the power management process into distinct functional modules: a communication unit for receiving power information, a controller for determining charging capacity, and a power tracker for monitoring and reallocating power. This segmentation allows each module to handle specific tasks independently, reducing overall system complexity while maintaining multi-device charging capability.
Solution Approach 2:
The communication unit receives charging support power and requested power information from each wireless power reception apparatus before charging begins. The controller uses this advance information to determine optimal charging capacity allocation, preventing power management issues before they occur and simplifying real-time control.
2Speed
If the wireless power transmission apparatus allocates power based on initial requested power, then charging speed is improved, but power efficiency deteriorates when charging status changes during the charging process
Solution Approach 1:
The power tracker continuously receives charging status information from wireless power reception apparatuses and feeds this information back to the controller. The controller uses this feedback to dynamically adjust and reallocate charging capacity, ensuring optimal power efficiency while maintaining appropriate charging speeds based on actual charging needs rather than initial requests alone.
3Power
If the wireless power transmission apparatus increases power capacity to meet all requested power, then charging capability is improved, but system cost and complexity increase
Solution Approach 1:
The patent implements dynamic power allocation where the controller adjusts charging capacity in real-time based on received power information and charging status. Instead of provisioning for maximum possible power, the system dynamically scales power distribution to match actual needs, maintaining high charging capability while avoiding the complexity and cost of infrastructure designed for peak theoretical demand.
4Device complexity
If the wireless power transmission apparatus uses simple power allocation, then system complexity is reduced, but charging efficiency decreases when power capacity is exceeded
Solution Approach 1:
The patent changes the parameter of power allocation from static to dynamic by introducing the power tracker that monitors charging status and triggers reallocation. This parameter change allows the system to maintain relatively simple architecture while achieving high charging efficiency through intelligent adjustment of power distribution based on actual charging needs and capacity constraints.
Data Source
AI summary
A wireless power transmission apparatus for tracking a charging capacity of each of a plurality of wireless power reception apparatuses in an environment in which the plurality of wireless power reception apparatuses are charged includes a communication unit configured to receive information about either one or both of a charging support power and a requested power from each of the plurality of wireless power reception apparatuses, a controller configured to determine a charging capacity for a wireless power reception apparatus supporting the charging support power among the plurality of wireless power reception apparatuses based on the information about the charging support power, and a power tracker configured to re-track the determined charging capacity based on charging status information received from the plurality of wireless power reception apparatuses.