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Study on Analysis of Real Road Driving Characteristics of Heavy-Duty Gas Delivery Tractor

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Abstract

Recently, there has been increasing interest in reducing hazardous and CO2 emissions from vehicles. For emission reduction, it is necessary to analyze operating conditions of vehicles by using real on-road data and to improve their effective performance. In particular, for heavy-duty vehicles, technical improvements and operational management are critical in terms of air quality management, for although the number of vehicles is small, the duration and level of emissions are relatively high. However, research data obtained from analyses of driving characteristics of heavy-duty domestic delivery vehicles are relatively insufficient. Technically, there are many difficulties in setting driving conditions for such analysis, such as measuring driving resistance and determining variations in the vehicle mass with the amount of freight. In this study, on the basis of the speed and engine output data of a heavy-duty gas delivery tractor obtained during real road driving, the driving characteristics of the vehicle was analyzed, its weight was estimated, and the effect of the vehicle’s weight on the driving energy and vehicle output was investigated.

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Abbreviations

A:

vehicle front area, m2

CI:

cycle index

C1 :

test coefficients 1, N (regression coefficients)

C2 :

test coefficients 2, N/(km/h)(regression coefficients)

C3 :

test coefficients 3, N/(km/h)2(regression coefficients)

Etrac :

trip vehicle traction energy, J

Eeng :

trip engine energy, J

K:

effective mass coefficient

Peng :

gross engine power, kW

Ptrac :

vehicle traction power, kW

PKE:

positive kinetic energy, m/s2

RCS:

relative cubic speed, m2/s2

RGE:

relative gradient

V:

vehicle speed, km/h

a:

vehicle acceleration, m/s2

crr :

tire rolling resistance coefficient

cd :

aero drag coefficient

d:

distance, m

dl:

vehicle driving distance during time duration, dt, m

m:

vehicle mass, kg

g:

gravitiational acceleration, m/s2

β:

angle of vehicle travel relative to gravity normal direction

ρ air :

air density, kg/m2

η tr :

transmission efficiency

normal:

normalized value

max:

maximum value

mean:

mean(averaged) value

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Acknowledgement

This research was financially supported by the Ministry of Trade, Industry and Energy (MOTIE) and the Korea Institute for Advancement of Technology (KIAT) through the National Innovation Cluster R&D program (P040200001, Development of Key Components and Remodeling Technology for Heavy Hydrogen Fuel Cell Truck). It was also supported by the Ministry of Trade, Industry and Energy (MOTIE) and the Korea Evaluation Institute of Industrial Technology (KEIT) through the Technology Innovation Program (20002762, Development of RDE DB and Application Source Technology for Improvement of Real Road CO2 and Particulate Matter).

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Authors and Affiliations

  1. Advanced Powertrain R&D Center, Korea Automotive Technology Institute, 303 Pungse-ro, Pungse-myeon, Dongnam-gu, Cheonan-si, Chungnam, 31214, Korea

    Jae Woo Chung, Beom Ho Lee, Si Won Lee & Deok Jin Kim

  2. Hydrogen Fuel Cell Mobility R&D Center, Korea Automotive Technology Institute, 303 Pungse-ro, Pungse-myeon, Dongnam-gu, Cheonan-si, Chungnam, 31214, Korea

    Ji Young Park & Young Mo Goo

Authors
  1. Jae Woo Chung
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  2. Beom Ho Lee
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  3. Si Won Lee
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  4. Deok Jin Kim
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Correspondence to Jae Woo Chung.

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Chung, J.W., Lee, B.H., Lee, S.W. et al. Study on Analysis of Real Road Driving Characteristics of Heavy-Duty Gas Delivery Tractor. Int.J Automot. Technol. 22, 1735–1742 (2021). https://doi.org/10.1007/s12239-021-0149-5

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  • DOI: https://doi.org/10.1007/s12239-021-0149-5

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