Vehicle Wireless Power Control for Multi-Receiver Load Redistribution
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Solution Overview
Problem
In wireless power transmission systems, when received power is limited to a specific power receiving circuit, other power receiving circuits with surplus power capacity are not utilized effectively, leading to reduced overall power reception by the vehicle.
Innovation Solution
A control device that acquires state information of each power receiving device and redistributes the scheduled power from the limited device to other devices, ensuring optimal power distribution and utilization across all circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If power reception is limited to a specific power receiving circuit, then the control complexity is reduced and the system is easier to manage, but the overall power reception efficiency decreases because other circuits with surplus capacity cannot be utilized
Solution Approach 1:
The patent implements dynamic power distribution by continuously monitoring the reception status of each power receiving circuit and automatically adjusting power allocation. When a specific circuit limits power reception, the system dynamically redirects power to other circuits with surplus capacity, transforming a static single-circuit limitation into a dynamic multi-circuit optimization system
Solution Approach 2:
The system changes the operational parameters of power receiving circuits by adjusting power allocation based on real-time status. It monitors reception limits and modifies power distribution parameters to maximize overall efficiency, changing from fixed power allocation to adaptive parameter adjustment
2Power
If multiple power receiving circuits are provided on the vehicle side, then the power reception capacity is increased, but the system complexity increases and requires sophisticated control to manage power distribution
Solution Approach 1:
Each power receiving circuit monitors its own reception status and communicates this information to the control device. The system enables self-service operation where circuits automatically report their capacity status, and the control algorithm automatically distributes power without requiring complex manual intervention or sophisticated coordination protocols
Solution Approach 2:
The patent implements a feedback mechanism where reception status information from each power receiving circuit is continuously fed back to the control device. This feedback loop enables the system to adjust power distribution in real-time, managing multiple circuits through simple status-based control rather than complex coordination
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for appropriate measures to be taken when power is limited to a specific circuit, enhancing overall power reception efficiency by redistributing power among the vehicle's power receiving devices.
Implementation Method 1
a vehicle equipped with a plurality of power receiving devices that receives power in a non-contact manner from a supply device on a road side
Data Source
AI summary
The vehicle ECU acquires state information indicating the state of each of the plurality of power receiving devices, and based on this state information, determines whether a specific power receiving device that restricts power reception has occurred in any of the plurality of power receiving devices. When a specific power receiving device occurs, the amount of power scheduled to be received by the specific power receiving device is caused to be received by each of the plurality of power receiving devices other than the specific power receiving device.