Improving Winter Driving Range of EVs with a Desiccant Device: Ceramic Humidity Regulator (CHR)
調湿デバイスによる電気自動車の冬季航続距離改善：Ceramic Humidity Regulator（CHR）
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20265295
- Paper/Info type
- Proceedings (Spring)
No.69-26
- Pages
- 1-6(Total 6 p)
- Date of publication
- May 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Spring)
Detailed Information
| Author(J) | 1) 齋藤 浩貴, 2) 伊原 幸男, 3) 太田 一, 4) 酒井 直希 |
|---|---|
| Author(E) | 1) Hirotaka Saito, 2) Yukio Ihara, 3) Hajime Ota, 4) Naoki Sakai |
| Affiliation(J) | 1) NGK, 2) NGK, 3) NGK, 4) NGK |
| Affiliation(E) | 1) NGK, 2) NGK, 3) NGK, 4) NGK |
| Abstract(J) | EVは冬季暖房により航続距離が大幅に低下することが課題である．暖房効率低下の1つに，窓ガラスの防曇目的の換気による熱損失が挙げられる．除湿材とセラミックPTCヒーターを一体化したデシカントデバイス（CHR) を開発．車両試験ではオートエアコンモードと比較して暖房電力25%低減確認し，冬季航続距離改善が期待できる． Translation |
| Abstract(E) | One major challenge for electric vehicles (EVs) in winter is reduced driving range due to heating demands. Heat loss from ventilation for window defogging is a key factor. To address this, we developed the Ceramic Humidity Regulator (CHR), a desiccant device combining a moisture-adsorbent material with a ceramic PTC heater. This integrated system controls humidity while providing efficient heating. Vehicle tests showed that, compared to conventional automatic air-conditioning, CHR reduced heating power consumption by about 25%. This improvement is expected to enhance EV driving range under cold-weather conditions. |
