Full Breakdown
Honda to Pilot Dynamic Wireless Charging on Public Roads in Japan
By Drooid · · How we work
Core Event
Honda Motor, via its research arm Honda R&D Co., Ltd., together with Taisei Corporation and Taisei Rotec Corporation, will demonstrate a magnetic-coupling wireless power-transfer (WPT) system that charges electric vehicles (EVs) while moving. The trial begins in Japan’s fiscal year 2027 on the Tateyama Expressway in Chiba prefecture. Power-transmitting units are embedded in the roadway and a receiver on the vehicle transfers electricity without stopping.
Background & Context
Honda has pursued dynamic wireless power transfer (DWPT) since 2021 to expand EV charging infrastructure. In 2025 the three companies completed initial validation on a private test track and now aim to target logistics and transportation sectors, where predictable routes make in-motion charging valuable.
Key Figures & Groups
- Honda R&D Co., Ltd. – develops the road-side transmitter and vehicle-side receiver.
- Taisei Corporation – provides the high-response DC power-supply unit.
- Taisei Rotec Corporation – embeds the charging equipment in the pavement.
- Taku Ueda – Honda R&D representative.
Timeline
- 2021 – Honda begins DWPT research.
- 2025 – Joint development of the magnetic-coupling WPT system.
- Late 2026 – Construction of a second test road for durability testing.
- April 1, 2027 (scheduled) – Public-road demonstration on the Tateyama Expressway.
Data & Statistics
- Designed for commercial vehicles up to 20 tonnes gross weight.
- Target power output of up to 150 kW, suitable for large trucks and passenger EVs.
- Durability testing includes one million wheel-load cycles.
- System components: road-embedded transmitter, vehicle-mounted receiver, ground-level DC power-supply network.
Official Statements & Responses
Honda says the system could reduce how often EV drivers stop at charging stations, improving fleet efficiency and allowing smaller onboard batteries. The upcoming tests will evaluate durability, power-transfer performance, and electromagnetic-field leakage. An engineer declined to disclose cost comparisons with conventional fast-charging networks, noting that economic viability will be assessed after field trials.
Verbatim Quotes
“Taku Ueda of Honda R&D stated, "We recognize that the ability to supply power while driving represents an unprecedented value in mobility.” — Taku Ueda, Honda R&D
What's Next
The demonstration starting April 1, 2027 will assess performance at typical expressway speeds and real traffic conditions. Results will guide decisions on broader deployment in logistics fleets and may influence future standards for dynamic wireless charging in Japan.