Improvement of NOx Concentration Measurement Performance in ZrO2-type NOx Sensor-based Emission Measurement System (SEMS) for Heavy-duty Vehicle
ZrO2型NOxセンサを用いた重量車排出ガス測定システム(SEMS)におけるNOx濃度測定性能の向上
- Delivery
- Available on the other site
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- Publication code
- 20224051
- Paper/Info type
- JSAE Transaction
Vol.53 No.1
- Pages
- 170-176(Total 7 p)
- Date of publication
- Jan 2022
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | ResearchPaper |
| Author(J) | 1) 山本 敏朗, 2) 鈴木 央一, 3) 柴﨑 勇一 |
| Author(E) | 1) Toshiro Yamamoto, 2) Suzuki Hisakazu, 3) Yuichi Shibasaki |
| Affiliation(J) | 1) 自動車技術総合機構, 2) 自動車技術総合機構, 3) 自動車技術総合機構 |
| Abstract(J) | NOxセンサを用いた重量車排出ガス測定システムは，取付けが簡便で長期間の路上走行試験に適するが，NOx濃度の測定精度が化学発光式分析計に比べて劣り，またNH3をNOxに誤検出するNH3干渉の問題が存在する．本報では，測定精度向上のための補正方法やNH3センサを併用する計測システムについて検討した． Translation |
| Abstract(E) | The heavy-duty vehicle exhaust gas measurement system using the ZrO2 type NOx sensor can be directly inserted into the exhaust pipe and is suitable for long-term road driving tests. However, this measurement system has a problem that the measurement accuracy of NOx concentration is inferior to that of the chemiluminescence analyzer, and NH3 is erroneously detected as NOx. In this report, as a measure to improve the measurement accuracy, the calibration curve for calculating the NOx concentration is modified to match the exhaust gas of heavy-duty vehicles, and we examined the introduction of a NH3 sensor to correct NH3 interference. |
