Experimental evaluation of on-road fuel consumption for a 2.2 L diesel-fueled vehicle at two driving routes
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DOI 10.1007/s12206-020-0733-z
Journal of Mechanical Science and Technology 34 (8) 2020 Original Article DOI 10.1007/s12206-020-0733-z Keywords: · Fuel consumption · Moving average window (MAW) · Portable emissions measurement system (PEMS) · Real road driving emissions (RDE) · Worldwide harmonized light vehicles · Test cycles (WLTC)
Correspondence to: Jinwook Lee [email protected]
Citation: Kim, T., Cho, I., Kim, T.-H., Kim, W.-T., Lee, J. (2020). Experimental evaluation of on-road fuel consumption for a 2.2 L diesel-fueled vehicle at two driving routes. Journal of Mechanical Science and Technology 34 (8) (2020) ?~?. http://doi.org/10.1007/s12206-020-0733-z
Received December 2nd, 2019 Revised
April 4th, 2020
Accepted May 2nd, 2020 † Recommended by Editor Yong Tae Kang
© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Experimental evaluation of on-road fuel consumption for a 2.2 L diesel-fueled vehicle at two driving routes Tahkkyoo Kim1, Insu Cho1, Tae-Hyun Kim2, Woo-Taek Kim2 and Jinwook Lee3 1
Department of Mechanical Engineering, Graduate School, Soongsil University, Seoul 06978, Korea, Department of Mechanical Engineering, Undergraduate School, Soongsil University, Seoul 06978, 3 Korea, School of Mechanical Engineering, Soongsil University, Seoul 06978, Korea
2
Abstract
In this study, we investigated the RDE (real driving emissions) test with a diesel passenger vehicle and two RDE driving routes. We then experimentally analyzed the implications for fuel consumption of a 2.2L diesel-fueled vehicle. First, we found that the weighting factor, which is the product of the carbon dioxide average value from the MAW (moving average window) analysis, results in real-road fuel consumption measurement that are closer to the WLTC (worldwide harmonized light vehicles test cycles) measurement results. Therefore, we ignored the weighting factor of the WLTC and used a new weighting factor of distance instead. In order to determine the influence of each factor on the fuel efficiency, we analyzed the carbon-dioxide emission for the operation of additional equipment. And OBD values were used to develop correction equations to compensate for vehicle driving regions where GPS data was not measured in the test route. When using the weighting factor based on the WLTC standard, the weighting factor based on distance was introduced to calculate the fuel consumption in this study.
1. Introduction In general, fuel consumption and emission tests of an automobile are performed on chassis dynamometers. The applicable driving cycles are produced to assess the performance of vehicles in various way. So, tailpipe emissions are collected and measured to indicate the performance of the vehicle with various vehicle emissions certification cycles, like as the new European driving cycle (NEDC), federal test procedure (FTP)-75, highway fuel economy test (HWFET), world harmonized light duty vehicle test cycle (WLTC), as shown in Fig. 1 [1]. Specially, CAFE fuel economy values are
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