Articles | Volume 14, issue 3
Research article
16 Mar 2021
Research article |  | 16 Mar 2021

Real-world measurement and mechanical-analysis-based verification of NOx and CO2 emissions from an in-use heavy-duty vehicle

Hiroo Hata, Kazuo Kokuryo, Takehiko Ogata, Masahiko Kugata, Koichi Yanai, Megumi Okada, Chikage Funakubo, Minoru Yamazaki, and Junya Hoshi

Related subject area

Subject: Gases | Technique: In Situ Measurement | Topic: Instruments and Platforms
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Short summary
The authors conducted the measurement of real-world CO2 and NOx emissions from one heavy-duty vehicle. The results showed that NOx emissions increased in colder seasons because of the deactivation of after-treatment tools. We proposed an estimation model of vehicle emissions based on the classical mechanic theory. The model explained the emission behavior of CO2 and NOx well, and thus, we concluded that the proposed model will be applied to the evaluation of vehicular emission inventories.