EV Parking Pallet Control for Facility Power Supply Access

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Solution Overview

Problem

Existing parking management systems for electric vehicles struggle to ensure that all parking spaces can supply power to facilities during emergencies, as not all spaces are equipped with charging and discharging devices, limiting the functionality of electric vehicles.

Innovation Solution

A system with movable pallets and controlled movement of vehicles to chargeable and dischargeable parking spaces, ensuring that electric vehicles can be parked where charging and discharging devices are installed, using a controller to optimize pallet movement based on vehicle capabilities and proximity to facilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If charging and discharging devices are installed in all parking spaces, then more electric vehicles can supply power to facilities, but installation cost and system complexity increase significantly

Engineering Contradiction:
Improvepower supply capabilityVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces movable pallets that can dynamically reposition vehicles between different parking spaces. Instead of having fixed charging/discharging devices in every space, the system dynamically moves vehicles to spaces equipped with these devices, making the resource allocation flexible and adaptive to changing needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pallet acts as an intermediary mechanism between vehicles and charging/discharging devices. Rather than directly connecting every vehicle to every charging point, the pallet mediates the interaction by transporting vehicles to appropriate spaces, simplifying the overall system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If charging and discharging devices are installed in limited parking spaces, then system complexity is reduced, but fewer electric vehicles can supply power to facilities

Engineering Contradiction:
Improvesystem complexityVSAvoidpower supply capability
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The movable pallet system enables dynamic redistribution of vehicles to the limited number of spaces equipped with charging/discharging devices. This maximizes the utilization of these devices by bringing the right vehicles to the right spaces at the right times, thereby enhancing power supply capability without increasing device count.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary actions by proactively moving vehicles to charging/discharging spaces before power supply is needed. The controller identifies vehicles capable of power supply and positions them in advance in spaces with charging/discharging devices, ensuring immediate power availability when required.

Inventive Principle:
Principle #10Preliminary action

3Loss of energy

If vehicles are moved to parking spaces with shorter feed lines, then power loss is reduced, but movement control complexity increases

Engineering Contradiction:
Improvepower lossVSAvoidcontrol complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The controller incorporates feedback mechanisms to monitor power loss levels and vehicle positions. Based on real-time information about feed line lengths and power transmission efficiency, the controller makes intelligent decisions about vehicle relocation, optimizing power loss reduction while managing control complexity through data-driven decisions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the parameter of vehicle position to optimize power loss. By adjusting which vehicles are located in which parking spaces based on feed line length parameters, the system minimizes energy loss during power transmission from vehicles to facilities.

Inventive Principle:
Principle #35Parameter changes

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

Enhances the number of electric vehicles that can supply power to facilities by strategically moving vehicles to spaces with charging and discharging devices, reducing power loss and optimizing power distribution.

Implementation Method 1

a battery installed in the electric vehicle can supply power to predetermined facilities

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Data Source

PatentEP4424951B1Parking management system
Publication Date: 2026.05.06 TOYOTA JIDOSHA KK
  • EP4424951B1 patent drawingFigure 1
  • EP4424951B1 patent drawingFigure 2
  • EP4424951B1 patent drawingFigure 3

AI summary

A parking management system equipped with a plurality of pallets (40) that can be moved in a parking space with a vehicle mounted on them, a plurality of charging and discharging devices (33) that are installed in chargeable and dischargeable parking spaces (32) and capable of supplying power to a predetermined facility, and a controller (60) that is programmed to control the movement of the pallets and control the charging and discharging devices. The controller (60) is programmed to move a pallet (a feedable pallet) carrying an electric vehicle capable of supplying power to the predetermined facility to the chargeable and dischargeable parking spaces (32).