Reconfigurable Wireless Charging Coil System for Multi-Vehicle Compatibility

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Solution Overview

Problem

Existing vehicle charging systems face inefficiencies in charging electric vehicles with varying coil structures, leading to suboptimal induced current and voltage, requiring multiple charging apparatuses for different vehicle configurations and increasing installation costs.

Innovation Solution

A vehicle charging apparatus and method that dynamically adjusts the magnetic field generator's coil structure to match the signal inducer's structure in the vehicle, using a system of interconnected coils and switches controlled by a controller to optimize current flow and voltage induction, allowing for wireless charging regardless of the vehicle's coil configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed coil structure charging apparatus is used, then the apparatus structure is simple, but it cannot efficiently charge vehicles with different coil structures

Engineering Contradiction:
Improvecompatibility with different vehicle coil structuresVSAvoidcharging apparatus structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The charging apparatus employs switches (first switch and second switch) that can dynamically reconfigure the coil connections between series and parallel configurations, allowing the apparatus to adapt its electrical characteristics to match different vehicle coil structures and optimize charging efficiency

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The charging apparatus is designed with multiple coils (first coil, second coil, third coil, fourth coil) and switching mechanisms that enable it to serve multiple vehicle types with different coil configurations through a single device, achieving universal compatibility without requiring multiple specialized charging stations

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If multiple charging apparatuses are installed for different vehicle configurations, then charging efficiency is optimized for each vehicle type, but installation costs increase

Engineering Contradiction:
Improvecharging efficiencyVSAvoidnumber of charging apparatuses
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

A single charging apparatus is designed with reconfigurable coil structures that can accommodate different vehicle types, eliminating the need to install multiple specialized charging apparatuses while maintaining high charging efficiency across various vehicle configurations

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The charging apparatus changes its electrical parameters (series or parallel connection configuration) based on the detected vehicle coil structure, allowing one apparatus to efficiently charge multiple vehicle types by adjusting its internal configuration rather than requiring multiple fixed apparatuses

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the coil structure does not match the vehicle's signal inducer, then the charging apparatus structure is simple, but induced current and voltage are suboptimal

Engineering Contradiction:
Improvecharging stabilityVSAvoidcoil structure configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller detects the vehicle's coil structure and provides feedback to the switching mechanism, which then adjusts the coil connection configuration accordingly, ensuring optimal induced current and voltage while maintaining system reliability through adaptive matching

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The charging apparatus dynamically adjusts its coil configuration based on real-time detection of vehicle characteristics, ensuring optimal charging performance and stability for each vehicle type without requiring complex fixed structures for every possible configuration

Inventive Principle:
Principle #15Dynamics

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

Enables efficient and stable charging of vehicles with different coil structures using a single charging apparatus, reducing installation costs and improving charging speed and reliability by adapting the magnetic field to match the vehicle's coil configuration.

Implementation Method 1

a first coil, a second coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the first coil, a third coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the second coil and a fourth coil having one end selectively connected to one end of the second coil, and the other end selectively connected to the other end of the first coil

Methodology Applied
Scientific EffectMagnetic field generation: Electromagnetic Induction

Data Source

PatentUS10286796B2Vehicle, vehicle charging apparatus, vehicle charging system, and vehicle charging method
Publication Date: 2019.05.14 HYUNDAI MOTOR CO LTD
  • US10286796B2 patent drawing
  • US10286796B2 patent drawing
  • US10286796B2 patent drawing

AI summary

The present disclosure provides a vehicle, a vehicle charging apparatus, vehicle charging system, and a vehicle charging method. The vehicle charging apparatus may include: a first coil; a second coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the first coil; a third coil having one end selectively connected to one end of the first coil, and the other end selectively connected to the other end of the second coil; and a fourth coil having one end selectively connected to one end of the second coil, and the other end selectively connected to the other end of the first coil, where the fourth coil intersects the third coil.