Area Power Consumption Mapping for Dynamic EV Road Charging

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Solution Overview

Problem

The rapid charging of in-vehicle batteries for electric vehicles leads to increased power supply loads, causing power shortages and making it difficult to ensure consistent power delivery.

Innovation Solution

An information provision device and method that acquire power receiving information and positional data from vehicles equipped with contactless power receiving devices, calculate area power consumption by aggregating this data, and visualize this information to provide it to other devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If rapid charging of in-vehicle battery is implemented to ensure long cruising range, then charging speed is improved, but power supply load increases causing power shortages

Engineering Contradiction:

Improvecharging speedVSAvoidpower supply load

Core Design Contradiction:

SpeedVSPower

Solution Approach 1:

The patent segments the power supply system into multiple power supply devices distributed along the road, each capable of independently charging vehicles. This segmentation allows the total power load to be distributed across multiple sources, preventing power shortages while maintaining rapid charging capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system performs preliminary actions by pre-calculating and storing area power consumption data for different regions. This allows the system to predict power requirements in advance and allocate power resources accordingly, ensuring that sufficient power is available when rapid charging is needed without causing power shortages.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If power receiving information is collected from all vehicles to calculate area power consumption, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improvearea power consumption accuracyVSAvoiddata collection and processing system

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The information provision device performs multiple functions: it collects power receiving information from vehicles, calculates area power consumption, determines urban area classifications, and provides this information to other devices. This multi-functionality consolidates what would otherwise require multiple separate systems into a single device, reducing overall system complexity while maintaining high measurement precision.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The information provision device acts as an intermediary between power supply devices and area management systems. It aggregates power consumption data from multiple vehicles and transforms it into meaningful area-level statistics, simplifying the data processing burden on individual components while achieving high measurement precision through collective data aggregation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250026231A1Information provision device, information provision method, and storage medium

Publication Date: 2025.01.23 HONDA MOTOR CO LTD

AI summary

An information provision device acquires power receiving information and positional information on the power reception through communication from a communication device installed in a vehicle equipped with a power receiving device that receives power from a power supply device installed on a road in a contactless manner, calculates an area power consumption by aggregating the power receiving information for each area on the basis of the positional information, and visualizes the area power consumption to provide it to other devices.