電気自動車向けワイヤレス充電市場 2023-2033年: 技術、有力企業、市場予測

（詳細は目次のページでご確認ください）

●　全体概要

●　電気自動車のワイヤレス充電のイントロダクション

●　非接触充電

□ 非接触充電の原理

□ 非接触充電の構成部品

●　静電容量充電

□ 静電容量充電の原理

□ 静電容量充電の課題

●　動的ワイヤレス充電

●　ワイヤレス充電有力企業のベンチマーク比較

□ 静的ワイヤレス充電有力企業

□ 動的ワイヤレス充電有力企業

●　ワイヤレス充電プロジェクト

●　ワイヤレス充電商用展開分析

●　安全対策と規格

●　10年間詳細予測

□ 車両セグメント別（自家用車、自動運転車、商用車）

□ 車両サブセグメント別（自家用車、商用バン、商用バス、商用トラック、自動運転車（ロボタクシー）、自動運転シャトル、自動運転バスと自動運転トラック )

□ 電力レベル別（低出力（22 kW以下）と高出力（22 kW超）

□ 構成部品別（地上送信機（GA）と車両受信機（VA））

□ 用途別（静的オフロード用または動的路上走行用）

□ 構成部品別と用途別インフラ市場価値

 

• ワイヤレス給電（WPT）を可能にする科学原理の詳細サマリー

• 非接触方式、磁気共鳴方式、静電容量方式充電の比較検証

• コイル方式、パッドデザインと電気的要求事項の分析

• 銅製リッツ線コイル、フェライトコア構造とアルミニウム製シールドを含むパッド内必須材料の包括的検証

• 異なるコイル方式と業界で利用される方式のパフォーマンス比較

• インフラ要件、コストと規模の課題とこの分野の推進中プロジェクトを含む動的ワイヤレス充電の検証

• ビジネスモデル、財務情報、製品群と展開状況を含む主要企業の一次インタビュー

• 電力レベルと密度別、効率別、エアギャップ別とパッド重量とサイズ別のベンチマーク比較

• 重要な教訓と技術成熟度（TRL）別世界実証プロジェクトのサマリ

• 構成部品コスト、設備取付とメンテナンスコストを含むコスト分析

• サンプルデータと補足事例検証によるバッテリー小型化の余地

• オポチュニティ・チャージング用バッテリーの健全性メリット

• 自動バレーパーキング（AVP）とワイヤレスV2Gの可能性

• シールド、異物検知（FOD）、生体保護（LOP）を含む安全機能の詳細

• 標準化の状況と概観

• 車両セグメント別（自家用車、商用バン、商用バス、商用トラック、自動運転車（ロボタクシー）、自動運転シャトル、自動運転バスと自動運転トラック

• 電力レベル別（22kW以下（低出力）と22kW超（高出力、最大500 kW）

• 構成部品別（地上送信機と車両受信機）

• 用途別（静的オフロード用と動的路上走行用）

• グローバル・ワイヤレス電気自動車（EV）充電インフラ市場価値

• 銅の材料需要

 

The development of wireless charging systems for electric vehicles (EVs) has slowly picked up momentum over the past decade. With wireless charging systems properly integrated into vehicles and situated strategically around a city, as well as at owners' homes, there is the promise of never needing to plug in an EV again. Drivers should simply park as usual over a coil placed on the ground or buried in it. There are a number of companies jostling to be the dominant player in the wireless EV charging space including WiTricity, Hevo, Wave, IPT Technology, Momentum Dynamics and many more. In reality, each competitor's systems are intended for different applications and there is enough business potential for everyone in this emerging market. This latest report from IDTechEx covers these players and more. It benchmarks their products and includes information on their deployments.

 

The basic principle behind the technology is electromagnetic induction. In particular, the use of resonant inductive coupling which involves adding a capacitor to each induction coil to create two resonant circuits (LC circuits) with a specific resonance frequency. A fluctuating magnetic field is created by an alternating current operating at this resonant frequency in the transmitting coil. This magnetic field then induces current in the receiving coil. In this way, the energy transfer is accomplished wirelessly. In some instances, this technology is also referred to as "magnetic resonance", and it is often contrasted to "induction" for its ability to efficiently transfer power over a range of distances and with positional and orientational offsets.

 

The wireless charging system consists of three main parts: wall box, ground assembly (GA), and vehicle assembly (VA). IDTechEx research found that about 70% of the cost is associated with the ground assembly, where electricity from the AC mains is first converted to DC using rectifiers and then converted to high frequency AC using inverters. On the vehicle side, a secondary rectifier is needed to convert the transmitted AC into DC for powering the vehicle's battery. The report addresses the ground and vehicle-based assemblies with a dive into materials and components. A TCO comparison with plug-in infrastructure alongside overall system efficiency comparisons are some of the highlights.

 

Wireless EV charging will play a key role in developing the overall network of EV charging infrastructure alongside Level 1 and 2 AC charging and Level 3 DC fast charging. It will be a complementary solution to support the growing population of zero-emission light-, medium-, and heavy-duty vehicles. It offers tremendous opportunities for Auto OEMs, Tier 1 suppliers, and fleet operators.

 

Wireless charging standards had been in development for over a decade before being finalised and released in 2020. With the SAE J2954 standard now agreed for consumer EVs, the technology has the potential for widespread adoption.

The standard focuses on relatively low-power charging systems, at 3.3kW through to 11kW, with a 22kW level being worked on. This is aimed at static charging of cars at home or the office, or light trucks that charge overnight at their depot. However, installing a wireless charging system is an additional cost for the vehicle design, as a cable connector for plug-in charging is already a prerequisite. Installing wireless charging pads embedded in roads also brings an additional cost, as it includes a connection to the grid. IDTechEx believes that developments will remain split between a focus on low-cost, low-power (sub 22kW) chargers for consumer convenience and the more powerful equipment for opportunity charging. Dynamic charging with specialised roads will follow for specific applications, with shuttles as an early opportunity. Included in this report are forecasts split by power level and static or dynamic applications.

 

The publication of the standard was a very important catalyst - many of the automotive manufacturers have since been working with their suppliers evaluating, developing, and refining wireless charging technologies. Companies like Hyundai, FAW and BYD are already offering factory-fitted wireless charging hardware from key players on select vehicle models. This report includes details on their systems, other engineered retrofits and some research institutions' novel designs.

 

 

 

IDTechEx anticipates that the largest development goals for wireless charging are to increase power and efficiency whilst decreasing overall system cost. Currently, plug-in systems offer faster charging speeds at a lower cost in comparison to wireless charging.

 

Wireless EV charging will also be mission-critical to enable autonomy. Volkswagen and Hyundai have shown concepts that consist of wireless charging pads installed in parking spots. Automated valet parking could then allow their cars to find the nearest parking spot and begin charging their batteries, without any human intervention. Costs for static wireless charging units are also expected to decrease with larger volumes being manufactured post 2025.

 

Electreon sees even further into the future. The company are developing and testing wireless charging embedded in roadways, enabling vehicles to be charged while on the move. They claim that the batteries could then be smaller, and thereby overall vehicle weight and cost can be reduced. However, the infrastructure for electrifying roads is very expensive and scaling them up to several kilometres is a challenge with only a small percentage of vehicles currently on the road being able to benefit. Yet, demonstrations are underway globally with some European countries like Sweden, Germany, France, and Italy having ambitious targets to electrify thousands of kilometres of roadways.

 

Wireless charging provides a charging solution to electric vehicles without physical contacts. It will bring certain convenience by eliminating the charging plugs. But would it be powerful and efficient enough to charge all types of vehicles? What are the additional components needed? What is the state of commercialisation? Is it safe to operate? Find answers to these questions in the IDTechEx report.

 

This report provides the following information:

 

Enabling technology, componentry breakdown, & performance analysis

 

Player profiles, benchmarking and pilot project deployments

 

Commercial operation analysis, safety metrics and standardisation

10-year market forecasts & Analysis:

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担当: 村越美和子 m.murakoshi@idtechex.com