Effects of Environmental Parameters on Real-World NOx Emissions and Fuel Consumption for Heavy-Duty Diesel Trucks Using an OBD Approach

Zhou, Hua; Zhao, Hua; Qian, Feng; Yin, Zenghui; Li, JIngyuan; Qin, Kongjian; Li, Mengliang; Cao, Lijuan

doi:10.4271/2018-01-1817

Cited by 6 publications

(19 citation statements)

References 16 publications

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“….. Table 18: Horiba OBS-One Specifications Chart [18] Table 19: Horiba OBS-One Measurement Principles of Gaseous Emissions [18] ........... Table 20: Horiba OBS-One PN unit specifications [19] Table 22: NCEM Module Specifications [22]…”

Section: Table Of Chartsmentioning

confidence: 99%

“…China has various areas of plains and mountains which include a wide variety of altitude variations. Some altitudes are as high as 2,000 meters and as low as 1,000 meters [22]. The temperature variations also fluctuate in the above plains and mountains as well as the O2 content.…”

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

“…The temperature variations also fluctuate in the above plains and mountains as well as the O2 content. The air intake differs as well as the air-fuel ratio which allows for alterations to occur in the cylinders and fuel consumption [22]. The altitude is taken into account when PEMS is being tested.…”

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

“…During this process the highest altitude allowed for testing is 2,400 meters. The OBD and PEMS are great methods to use in RDE testing situations [22]. The OBD detection allows for the sensors to be monitored so that the driver can be aware of the status of the equipment during testing [22].…”

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

“…The OBD and PEMS are great methods to use in RDE testing situations [22]. The OBD detection allows for the sensors to be monitored so that the driver can be aware of the status of the equipment during testing [22]. A signal will light up to show any malfunctions that could allow for high emissions to be collected.…”

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

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Comparison of emissions measurement between a sensor-based compact emissions meter and a standard PEMS

Leatherman¹

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Comparison of emissions measurement between a sensor-based compact emissions meter, and a standard PEMS The emissions produced by diesel engines are detrimental to human health, and the environment. To reduce these harmful emissions, engine manufacturers have used exhaust after treatment systems. The main objective of these after-treatment systems is to reduce exhaust emissions with minimal impact on an engines performance. The increase in emission regulations resulted in the need for a portable device to measure emissions. Portable emissions measurement systems (PEMS) are used to ensure engines comply with regulations in the real world. Although these systems are portable and can be installed on a vehicle they are bulky, expensive and time consuming to install. More recently a compact version of the PEMS based on lower cost, smaller sensors have come to market. These devices are not recognized for in-use compliance but potentially have a use for rapid testing of a larger fleet of vehicles.

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Section: Table Of Chartsmentioning

confidence: 99%

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

Section: Influence Of Altitude On Nox Concentration Levelsmentioning

confidence: 99%

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Comparison of emissions measurement between a sensor-based compact emissions meter and a standard PEMS

Leatherman¹

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Variation of truck emission by trip purposes: Cases by real-world trajectory data

Yao,

Gan,

Qian

et al. 2023

Transportation Research Part D: Transport and Environment

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Machine Learning Applied to the NOx Prediction of Diesel Vehicle under Real Driving Cycle

et al. 2021

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Euro 6 standards impose stringent nitrogen oxide (NOx) emission limits on diesel cars. NOx emissions are significantly different between Euro 6 diesel cars and the previous standards in real-world driving. In this research, the NOx concentrations of Euro 6 diesel engines during real-world driving were studied considering various factors. Real driving emission (RDE) tests were conducted using vehicles equipped with portable emissions measurement systems. Urban, rural, and motorway test routes were utilized. Road environment, atmospheric, and after-treatment performance factors were collected in each case. An artificial neural network was used for evaluation using RDE test data and various statistical parameters. It was found that the proposed method predicted the pollutant emissions effectively. Lastly, the relative importance of each predictor was derived, and the NOx concentrations were analyzed. These approaches provide accurate emission information for an environmental effect evaluation that reflects more realistic road conditions.

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Effects of Environmental Parameters on Real-World NOx Emissions and Fuel Consumption for Heavy-Duty Diesel Trucks Using an OBD Approach

Cited by 6 publications

References 16 publications

Comparison of emissions measurement between a sensor-based compact emissions meter and a standard PEMS

Comparison of emissions measurement between a sensor-based compact emissions meter and a standard PEMS

Variation of truck emission by trip purposes: Cases by real-world trajectory data

Machine Learning Applied to the NOx Prediction of Diesel Vehicle under Real Driving Cycle

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