The impacts from cold start and road grade on real-world emissions and fuel consumption of gasoline, diesel and hybrid-electric light-duty passenger vehicles

He, Liqiang; You, Yun; Zheng, Xuan; Zhang, Shaojun; Li, Zhenhua; Zhang, Zikai; Wu, Ye; Hao, Jiming

doi:10.1016/j.scitotenv.2022.158045

Cited by 23 publications

(5 citation statements)

References 33 publications

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“…Similar conclusions were drawn by the authors of [32], who compared an HEV vehicle and a conventional gasoline vehicle. A comparison of the fuel consumption of conventional and hybrid vehicles was also performed by the authors of [34]. Their analysis showed a significant fuel economy of the vehicle fitted with the alternative powertrain.…”

Section: Resultsmentioning

confidence: 99%

Comparison of the Energy Consumption and Exhaust Emissions between Hybrid and Conventional Vehicles, as Well as Electric Vehicles Fitted with a Range Extender

Ziółkowski,

Fuć,

Jagielski

et al. 2023

Energies

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The introduction of new Euro exhaust emission standards and CO2 limits has forced carmakers to implement alternative hybrid and electric powertrains. We are observing a dynamic advancement of this sector. The authors’ primary motivation was to perform a series of measurements of the exhaust emissions and fuel mileages from vehicles fitted with hybrid, conventional and electric (range extender) powertrains. Three vehicles were used in the research project. The first one was a passenger car with a full hybrid powertrain. The vehicle was fitted with a 1.6 dm3 spark ignition engine. The second one was fitted with a 2.2 dm3 diesel engine. The third one was fitted with a 125 kW electric motor and a 28 kW combustion engine used as a range extender. The investigations were carried out according to the RDE (Real Driving Emission) methodology on a test route composed of urban, rural and highway portions. The test route was set in the Poznan agglomeration, and its distance was approx. 80 km. For the measurements, the authors used SEMTECH-DS from the PEMS (Portable Emissions Measurement System) equipment group. Based on the obtained results, the authors validated the test route in terms of the RDE compliance and determined the exhaust emissions and fuel mileages. The authors also analyzed the influence of the conditions of the measurements on the powertrain characteristics of each of the tested vehicles.

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Section: Resultsmentioning

confidence: 99%

Comparison of the Energy Consumption and Exhaust Emissions between Hybrid and Conventional Vehicles, as Well as Electric Vehicles Fitted with a Range Extender

Ziółkowski,

Fuć,

Jagielski

et al. 2023

Energies

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show abstract

“…They found that the emissions across the vehicles and roads are well approximated by heavy-tailed distributions, and as a result, they identified the existence of gross polluters—vehicles with the highest emissions—and grossly polluted roads—which are subject to the highest emissions. Ten gasoline, four diesel, and six fully hybrid light-duty passenger vehicles (LDPVs) were examined by He et al [ 22 ] in Macao, China, using portable emissions measuring systems (PEMS). Due to the deliberate removal of after-treatment systems, they discovered that diesel vehicles are the study's highest polluters.…”

Section: Literature Reviewmentioning

confidence: 99%

How does adoption of electric vehicles reduce carbon emissions? Evidence from China

Zhao,

Hu,

Yuan

et al. 2023

Heliyon

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“…The application of start-stop technology in the context of THC (total hydrocarbons) and NOx (nitrogen oxides) emissions aims to significantly reduce these harmful substances in urban conditions [18,19]. When a vehicle comes to a stop at an intersection or in traffic, the engine is automatically shut off, eliminating unproductive fuel combustion and thereby reducing hydrocarbon emissions into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Quantifying Emissions in Vehicles Equipped with Energy-Saving Start-Stop Technology: THC and NOx Modeling Insights

Mądziel

2024

Preprint

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Creating accurate emission models capable of capturing the variability and dynamics of modern propulsion systems is crucial for future mobility planning. This paper presents a methodology for creating THC and NOx emission models for vehicles equipped with start-stop technology. A key aspect of this endeavor is to find techniques that accurately replicate the engine stop stages when there are no emissions. To this end, several machine learning techniques were tested using the Python programming language. Random forest and gradient boosting methods demonstrated the best predictive capabilities for THC and NOx emissions, achieving R2 scores of approximately 0.9 for both cold and hot engine emissions. Additionally, recommendations for effective modeling of such emissions from vehicles are presented in the paper.

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The impacts from cold start and road grade on real-world emissions and fuel consumption of gasoline, diesel and hybrid-electric light-duty passenger vehicles

Cited by 23 publications

References 33 publications

Comparison of the Energy Consumption and Exhaust Emissions between Hybrid and Conventional Vehicles, as Well as Electric Vehicles Fitted with a Range Extender

Comparison of the Energy Consumption and Exhaust Emissions between Hybrid and Conventional Vehicles, as Well as Electric Vehicles Fitted with a Range Extender

How does adoption of electric vehicles reduce carbon emissions? Evidence from China

Quantifying Emissions in Vehicles Equipped with Energy-Saving Start-Stop Technology: THC and NOx Modeling Insights

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