Power supplying facility for electric vehicle and power supply method for electric vehicle using power supplying facility

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Solution Overview

Problem

Electric vehicle batteries are inefficiently charged when the on-vehicle air conditioner is operated during charging, as it consumes some power, prolonging the charging time, and there is a need for simultaneous power supply and air conditioning in car-sharing models to ensure vehicles are ready for use quickly and comfortably.

Innovation Solution

A power supplying facility with a building-integrated power supply device and air conditioner that wirelessly charges electric vehicle batteries and adjusts the vehicle's interior temperature unmannedly, using automatic parking and communication systems to optimize charging and air conditioning processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the on-vehicle air conditioner is operated while the battery is being charged, then the temperature inside the vehicle becomes comfortable for users, but the charging time is prolonged due to reduced electric power available for charging

Engineering Contradiction:

Improvevehicle interior temperatureVSAvoidcharging time

Core Design Contradiction:

TemperatureVSLoss of time

Solution Approach 1:

The system separates the air conditioning function from the vehicle interior by implementing a building air conditioner that conditions the power supply space, while the vehicle's own air conditioner remains inactive during charging. This segmentation allows thermal comfort to be provided without consuming the vehicle battery's charging power.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The building air conditioner acts as an intermediary system that provides thermal comfort to the vehicle interior indirectly by conditioning the space where the vehicle is parked, rather than directly cooling or heating the vehicle interior. This mediator approach enables temperature control without drawing power from the vehicle's charging system.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the on-vehicle air conditioner is operated while the battery is being charged, then the vehicle is ready for use immediately after charging, but the electric power consumption increases and charging efficiency decreases

Engineering Contradiction:

Improvevehicle availabilityVSAvoidelectric power consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The air conditioning function is extracted from the vehicle system during charging operations and relocated to the building infrastructure. The vehicle's air conditioner is turned off during charging, and instead, the building air conditioner conditions the power supply space, thereby providing thermal comfort without consuming the vehicle's charging power.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The building air conditioner serves multiple functions: it conditions the power supply space for user comfort, and indirectly cools or heats the vehicle interior through air circulation. This multi-functional approach replaces the need for the vehicle's dedicated air conditioner during charging, reducing overall energy consumption.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If automatic parking function is implemented for unmanned power supply, then the operational efficiency and vehicle turnover rate increase, but the system complexity increases due to additional sensors and control mechanisms

Engineering Contradiction:

Improvevehicle turnover rateVSAvoidautomatic parking system complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The vehicle's automatic parking system operates autonomously without requiring external control infrastructure. The vehicle independently detects the power supply space location using its own sensors (camera, ultrasonic sensors, or marker recognition) and autonomously parks and positions itself for wireless power transfer, thereby increasing turnover rate without adding complexity to the building's power supply system.

Inventive Principle:

Principle #25Self-service

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 enables faster battery charging and improved vehicle availability by ensuring electric vehicles are ready for use with a comfortable temperature, reducing charging time and energy consumption while enhancing operational efficiency and user convenience.

Implementation Method 1

supplying power wirelessly to the battery of the electric vehicle parked in the power supply space by means of an automatic parking function

Methodology Applied

Scientific EffectWireless power supply: Electromagnetic Induction

Implementation Method 2

conditioning air inside of the building based on an operating state of the power supply device

Methodology Applied

Scientific EffectAir conditioning: Heat Exchanger

Data Source

PatentUS20220305933A1Power supplying facility for electric vehicle and power supply method for electric vehicle using power supplying facility

Publication Date: 2022.09.29 IHI CORP

AI summary

A power supplying facility includes: a power supply device installed in a building that has a power supply space for supplying power to an electric vehicle having a battery, and supplying power wirelessly to the battery of the electric vehicle parked in the power supply space by means of an automatic parking function, and a building air conditioner communicatively connected to the power supply device, and conditioning air inside of the building based on an operating state of the power supply device.