Developing local driving cycle for accurate vehicular CO2 monitoring: A case study of Tehran

2021 ◽  
pp. 130176
Author(s):  
Shahab Mafi ◽  
Amirhasan Kakaee ◽  
Behrooz Mashadi ◽  
Ashkan Moosavian ◽  
Saied Abdolmaleki ◽  
...  
Keyword(s):  
Driving Cycle ◽  
Co2 Monitoring

The WLTC vs NEDC: A Case Study on the Impacts of Driving Cycle on Engine Performance and Fuel Consumption

2021 ◽  
Vol 18 (3) ◽  
pp. 9071-9081
Author(s):  
Jakub Lasocki
Keyword(s):  
Fuel Consumption ◽  
Combustion Engine ◽  
Engine Performance ◽  
Driving Cycle ◽  
Performance Characteristics ◽  
Pollutant Emission ◽  
Strong Impact ◽  
Light Duty ◽  
Light Duty Vehicles

The World-wide harmonised Light-duty Test Cycle (WLTC) was developed internationally for the determination of pollutant emission and fuel consumption from combustion engines of light-duty vehicles. It replaced the New European Driving Cycle (NEDC) used in the European Union (EU) for type-approval testing purposes. This paper presents an extensive comparison of the WLTC and NEDC. The main specifications of both driving cycles are provided, and their advantages and limitations are analysed. The WLTC, compared to the NEDC, is more dynamic, covers a broader spectrum of engine working states and is more realistic in simulating typical real-world driving conditions. The expected impact of the WLTC on vehicle engine performance characteristics is discussed. It is further illustrated by a case study on two light-duty vehicles tested in the WLTC and NEDC. Findings from the investigation demonstrated that the driving cycle has a strong impact on the performance characteristics of the vehicle combustion engine. For the vehicles tested, the average engine speed, engine torque and fuel flow rate measured over the WLTC are higher than those measured over the NEDC. The opposite trend is observed in terms of fuel economy (expressed in l/100 km); the first vehicle achieved a 9% reduction, while the second – a 3% increase when switching from NEDC to WLTC. Several factors potentially contributing to this discrepancy have been pointed out. The implementation of the WLTC in the EU will force vehicle manufacturers to optimise engine control strategy according to the operating range of the new driving cycle.

scholarly journals Development of driving cycle under real world traffic conditions: A case study

2019 ◽  
Vol 9 (6) ◽  
pp. 4798
Author(s):  
Geetha A. ◽  
Subramani C.
Keyword(s):  
Driving Cycle ◽  
Time Dependent ◽  
Maximum Speed ◽  
Time Data ◽  
Maximum Acceleration ◽  
The Road ◽  
Traffic Conditions ◽  
Condensed Form ◽  
On The Road

<p><span>The modeling of a car is essentially done by taking into consideration the driving terrain, traffic conditions, driver’s behavior and various other factors which may directly or indirectly affect the vehicle’s performance. A vehicle is modeled for given specifications and constraints like maximum speed, maximum acceleration, and braking time, appropriate suspension for the gradient of the road and fuel consumption. Henceforth, a profound study and analysis of different drive cycles are essential. A time dependent drive cycle is a condensed form of data that helps us to determine the time taken to conduct the driving test on the road. This article highlights the development of a real driving cycle in the area of Tamilnadu, India. On-road vehicle’s speeds versus time data were obtained along the selected route. The data obtained were analyzed first and then a new driving cycle was developed.</span></p>

Development of a practical driving cycle construction methodology: A case study in Hong Kong

2007 ◽  
Vol 12 (2) ◽  
pp. 115-128 ◽  
Author(s):  
W.T. Hung ◽  
H.Y. Tong ◽  
C.P. Lee ◽  
K. Ha ◽  
L.Y. Pao
Keyword(s):  
Hong Kong ◽  
Driving Cycle

scholarly journals Real-World Driving Cycle: Case Study of Baqubah, Iraq

2017 ◽  
Vol 10 (2) ◽  
pp. 39-47 ◽  
Author(s):  
Ahmed Al-Samari ◽  
Keyword(s):  
Real World ◽  
Driving Cycle

scholarly journals Driving Cycle Construction for Electric Vehicles Based on Markov Chain and Monte Carlo Method: A Case Study in Beijing

2019 ◽  
Vol 158 ◽  
pp. 2494-2499 ◽  
Author(s):  
Zhenpo Wang ◽  
Jin Zhang ◽  
Peng Liu ◽  
Changhui Qu ◽  
Xiaoyu Li
Keyword(s):  
Monte Carlo ◽  
Markov Chain ◽  
Monte Carlo Method ◽  
Electric Vehicles ◽  
Driving Cycle

scholarly journals Study of Driving Cycle of City Tour Bus Based on Coupled GA-K-Means and HMM Algorithms: A Case Study in Beijing

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 20331-20345
Author(s):  
Mengfei Yuan ◽  
Xiu Kan ◽  
Chi-Hung Chi ◽  
Le Cao ◽  
Huisheng Shu ◽  
...  
Keyword(s):  
Driving Cycle
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