Wireless Power Transmission in Parking Facility Pallets

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Solution Overview

Problem

Existing parking facility technologies require complex automatic apparatus or human intervention for attaching and removing power-supplying cables to supply electric power to vehicles, leading to inefficiencies and potential electrical contact failures.

Innovation Solution

A parking facility with a power-transmitting coil embedded in the road surface and a power-receiving coil on a pallet, enabling wireless transmission of electric power between the coils, eliminating the need for cable attachment and removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If power cables are attached and removed to supply electric power to the vehicle, then electric power can be supplied to the vehicle, but complex automatic apparatus or human intervention is necessary

Engineering Contradiction:

Improveelectric power supply to vehicleVSAvoidcomplex automatic apparatus

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical cable attachment and removal system with a wireless power transmission system using electromagnetic induction. The power supply unit transmits electric power wirelessly to the vehicle through electromagnetic fields, eliminating the need for physical cable connections and the complex automatic apparatus that would be required to manage them.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Use of energy by moving object

If power cables are attached and removed to supply electric power to the vehicle, then electric power can be supplied to the vehicle, but human intervention is necessary

Engineering Contradiction:

Improveelectric power supply to vehicleVSAvoidhuman intervention

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The wireless power transmission system replaces the manual cable connection process with automatic electromagnetic power transfer. The power supply unit automatically detects when a vehicle is present and begins wireless power transmission without requiring human operators to physically connect or disconnect power cables.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Use of energy by moving object

If complex automatic apparatus is used to attach and remove power cables, then electric power can be supplied to the vehicle, but maintenance of the apparatus becomes necessary

Engineering Contradiction:

Improveelectric power supply to vehicleVSAvoidmaintenance of apparatus

Core Design Contradiction:

Use of energy by moving objectVSEase of repair

Solution Approach 1:

The patent eliminates the mechanical cable handling apparatus entirely by using wireless electromagnetic power transmission. This removes all the moving parts, connectors, and mechanical components that would require maintenance, debugging, and repair, leaving only the power supply unit which has no moving parts.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Use of energy by moving object

If power cables are attached and removed, then electric power can be supplied to the vehicle, but electrical contact failure occurs due to imperfect attachment and removal

Engineering Contradiction:

Improveelectric power supply to vehicleVSAvoidelectrical contact failure

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The wireless power transmission system replaces the mechanical cable connection process with electromagnetic field-based power transfer. This eliminates contact failures entirely because there are no physical connections to make or break - power is transmitted through electromagnetic induction between the power supply unit and the vehicle's receiving system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 simplifies the power-supply process, reduces manpower requirements, prevents electrical contact failures, and enhances maintenance efficiency by allowing wireless power transmission directly to vehicles, thereby streamlining the charging process.

Implementation Method 1

electric power is supplied to the vehicle by the wireless transmission between the power-transmitting coil and the power-receiving coil

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP2692966B1Parking facility

Publication Date: 2017.09.06 IHI CORP

Figure 1A~1B
Figure 2

AI summary

The parking facility to store a vehicle (M) in a storage space (S) in a state where the vehicle (M) is mounted on a pallet (2) includes: the pallet (2) in which a portion thereof corresponding to a power-receiving coil (m1) ofthe vehicle (M) has magnetic field transmissibility; a power-transmitting coil (3) disposed so as to face the portion having the magnetic field transmissibility; and a facility control drive device (4, 5, 6) to supply electric power to the power-transmitting coil (3).