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Real-world fuel consumption of light-duty passenger vehicles using on-board diagnostic (OBD) systems

Xuan Zheng, Sheng Lu, Liuhanzi Yang, Min Yan, Guangyi Xu, Xiaomeng Wu, Lixin Fu, Ye Wu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1212-6

Abstract: An increasing discrepancy between real-world and type-approval fuel consumption for light-duty passengervehicles (LDPVs) has been reported by several studies.The results showed that the normalized NEDC real-world fuel consumption of the tested vehicles was 13%

Keywords： Fuel consumption     Light-duty passenger vehicles     On-board diagnostic systems    

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Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO

Pol Masclans Abelló, Vicente Medina Iglesias, M. Antonia de los Santos López, Jesús Álvarez-Flórez

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1296-z

Abstract: Abstract • New method named CAbOP is presented based on ordering data according to power. • Three emission models are used and their emission results compared. • Emissions data are analyzed in real driving cycles under CAbOP criteria. • Methodology to collect data and reconstruct lost data in real urban driving cycles. In this work three fuel consumption and exhaust emission models, ADVISOR, VT-MICRO and the European Environmental Agency Emission factors, have been used to obtain fuel consumption (FC) and exhaust emissions. These models have been used at micro-scale, using the two signal treatment methods presented. The manuscript presents: 1) a methodology to collect data in real urban driving cycles, 2) an estimation of FC and tailpipe emissions using some available models in literature, and 3) a novel analysis of the results based on delivered wheel power. The results include Fuel Consumption (FC), CO2, NOx and PM10 emissions, which are derived from the three simulators. In the first part of the paper we present a new procedure for incomplete drive cycle data treatment, which is necessary for real drive cycle acquisition in high density cities. Then the models are used to obtain second by second FC and exhaust emissions. Finally, a new methodology named Cycle Analysis by Ordered Power (CAbOP) is presented and used to compare the results. This method consists in the re-ordering of time dependant data, considering the wheel mechanical power domain instead of the standard time domain. This new strategy allows the 5 situations in drive cycles to be clearly visualized: hard breaking zone, slowdowns, idle or stop zone, sustained speed zone and acceleration zone. The complete methodology is applied in two real drive cycles surveyed in Barcelona (Spain) and the results are compared with a standardized WLTC urban cycle.

Keywords： cycle     NOx/PM10/CO2 emissions     Wheel mechanical power domain     WorldwideHarmonized Light-Duty Vehicles Test Cycle (WLTC)    

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Real-Time Black Carbon Emissions from Light-Duty Passenger Vehicles Using a Portable Emissions Measurement

Xuan Zheng,Liqiang He,Xiaoyi He,Shaojun Zhang,Yihuan Cao,Jiming Hao,Ye Wu,

Engineering 2022, Volume 16, Issue 9,   Pages 73-81 doi: 10.1016/j.eng.2020.11.009

Abstract: On-road vehicles are an important source of anthropogenic BC.However, there are major uncertainties in the estimates of the BC emissions from on-road light-duty passengervehicles (LDPVs), and results obtained with the portable emissions measurement system (PEMS) methodWe demonstrated that the BC emission factors (EFs) of gasoline direction injection (GDI) engine vehiclesmg·km−1, which are higher than the EFs of port fuel injection (PFI) engine vehicles

Keywords： Black carbon     Light-duty gasoline vehicles     Portable emissions measurement system     Real-time emissions    

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Impact of gasoline engine deposits on light duty vehicle emissions: in-use case study in Beijing, China

Xin YUE, Ye WU, Xianjiang HUANG, Yao MA, Yuan PANG, Xiaofeng BAO, Jiming HAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 717-724 doi: 10.1007/s11783-012-0438-3

Abstract: Tailpipe emissions from light-duty gasoline vehicles usually deteriorate over time.Six in-use light-duty gasoline vehicles in Beijing were tested to investigate the impact of engine depositsEmissions under cold start and hot running test conditions from the six light duty vehicles were measuredResults show that although individual vehicles reacted differently for each of the pollutants, elimination

Keywords： engine deposit     fuel quality     detergency     vehicle emission    

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Key point selection in large-scale FBG temperature sensors for thermal error modeling of heavy-duty CNC

Jianmin HU, Zude ZHOU, Quan LIU, Ping LOU, Junwei YAN, Ruiya LI

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 442-451 doi: 10.1007/s11465-019-0543-0

Abstract: Compared with small- and medium-sized CNC machine tools, heavy-duty CNC machine tools require the usetemperature sensors that are connected in series through a thin optical fiber are mounted on a heavy-dutydemonstrates good prediction effects and strong robustness under different working conditions of the heavy-duty

Keywords： thermal error     heavy-duty CNC machine tools     FBG     key TMPs     prediction model    

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High-emitter identification for heavy-duty vehicles by temporal optimization LSTMand an adaptive dynamic Research Article

Zhenyi XU, Renjun WANG, Yang CAO, Yu KANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 11,   Pages 1633-1646 doi: 10.1631/FITEE.2300005

Abstract: Heavy-duty diesel vehicles are important sources of urban nitrogen oxides (NO) in actual applicationsThe detection and control of heavy-duty diesel emissions are critical for protecting public health.Currently, vehicles on the road must be regularly tested, every six months or once a year, to filterHowever, it is difficult to effectively screen high-emission vehicles in time with a long interval betweenIn this paper, we propose a long short-term memory (LSTM) and adaptive approach to identify heavy-duty

Keywords： High-emitter identification     Temporal optimization     On-board diagnostic device (OBD)     Dynamic threshold    

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dynamic mechanical characteristics and turning tool life under the conditions of excessively heavy-duty

Genghuang HE, Xianli LIU, Fugang YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 329-334 doi: 10.1007/s11465-012-0303-x

Abstract:

The dynamic mechanical characteristics of excessively heavy-duty cutting were analyzed based on theinvestigating the influence of dynamic mechanical characteristics on the tools’ failure in limited heavy-dutyThe heavy-duty cutting tool was damaged in the form of a shearing fracture.

Keywords： extreme loading cutting     shear flow stress     dynamic cutting force     fatigue fracture    

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Development of Heavy-Duty Gas Turbines in China in the New Era

Shu Guogang, Yu Chunhua, Shen Guohua, He Ai, Wang Zhaofeng, Wang Xiaobo

Strategic Study of CAE 2022, Volume 24, Issue 6,   Pages 184-192 doi: 10.15302/J-SSCAE-2022.06.017

Abstract:

The heavy-duty gas turbine industry is key to national energy securityprojects and driven by the carbon peaking and carbon neutrality goals, strategic research on heavy-dutyIn this study, we summarize the international experience in the development of heavy-duty gas turbineThe technical development directions of heavy-duty gas turbines include advanced materials and intelligent

Keywords： heavy-duty gas turbine     technical system     technical direction     high-efficiency power generation     power    

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Photocatalysis: from solar light to hydrogen energy

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 565-567 doi: 10.1007/s11708-021-0784-6

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Research on the theory and application of adsorbed natural gas used in new energy vehicles: A review

Zhengwei NIE,Yuyi LIN,Xiaoyi JIN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 258-274 doi: 10.1007/s11465-016-0381-2

Abstract: constituent is methane, has been considered a convincing alternative for the growth of the energy supply worldwideANG constitutes a safe and low-cost way to store methane for natural gas vehicles at an acceptable energyliterature on adsorbents, adsorption theories, ANG conformable tanks, and related technologies on ANG vehiclesThe review aims at illustrating both achievements and problems of the ANG technologies-based vehicles

Keywords： adsorbed natural gas (ANG)     adsorbent     adsorption theory     conformable tank     natural gas vehicles (NGVs)    

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From Remotely Operated Vehicles to Autonomous Undersea Vehicles

Feng Xisheng

Strategic Study of CAE 2000, Volume 2, Issue 12,   Pages 29-33

Abstract:

A clear definition and a very fine classification of the unmanned undersea vehicles are given in thisFollowing a brief introduction of the advances on the unmanned undersea vehicles the paper points outthat the autonomous underwater vehicles at present is a hot spot in the research realm of the unmannedundersea vehicles.SIA started to be engaged in the research and development of the remotely operated tethered vehicles

Keywords： undersea vehicles     ROV     AUV     ocean engineer     ocean resources exploration    

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Extended model predictive control scheme for smooth path following of autonomous vehicles

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 4-4 doi: 10.1007/s11465-021-0660-4

Abstract: extended model predictive control (MPC) scheme for implementing optimal path following of autonomous vehiclescan improve the path following quality for better ride comfort and road availability of autonomous vehicles

Keywords： autonomous vehicles     vehicle dynamic modeling     model predictive control     path following     optimization    

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A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 89-97 doi: 10.1007/s11708-012-0176-z

Abstract: This paper discusses two problems in in-line particle sizing when using light fluctuation method.First, by retrieving the ratio of particle concentrations at different time, the intensity of incident lightThere exists narrow error between the calculated and pre-detected value of the intensity of incident light

Keywords： in-line measurement     particle size distribution (PSD)     incident light intensity     particle concentration     light fluctuation    

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Implementation of a flexible Major Vacation Toll-free Program for small passenger vehicles in China

Meng XU, Ziyou GAO

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 498-499 doi: 10.15302/J-FEM-2017111

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Investigating the role of exiting vehicles and turn indicator usage in gap acceptance at single-lane

Nathan P. BELZ

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 8-16 doi: 10.1007/s11709-016-0365-7

Abstract: This research addresses the nature of gap distributions and use of turn indicators by exiting vehiclesRejected headways are analyzed in the context of priority abstaining events when entering drivers yield to vehiclesResults indicate that exiting vehicles, particularly those that do not use their turn indicators when

Keywords： roundabouts     exiting vehicles     turn indicator use     headways    

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Title Author Date Type Operation

Real-world fuel consumption of light-duty passenger vehicles using on-board diagnostic (OBD) systems

Xuan Zheng, Sheng Lu, Liuhanzi Yang, Min Yan, Guangyi Xu, Xiaomeng Wu, Lixin Fu, Ye Wu

Journal Article

Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO

Pol Masclans Abelló, Vicente Medina Iglesias, M. Antonia de los Santos López, Jesús Álvarez-Flórez

Journal Article

Real-Time Black Carbon Emissions from Light-Duty Passenger Vehicles Using a Portable Emissions Measurement

Xuan Zheng,Liqiang He,Xiaoyi He,Shaojun Zhang,Yihuan Cao,Jiming Hao,Ye Wu,

Journal Article

Impact of gasoline engine deposits on light duty vehicle emissions: in-use case study in Beijing, China

Xin YUE, Ye WU, Xianjiang HUANG, Yao MA, Yuan PANG, Xiaofeng BAO, Jiming HAO

Journal Article

Key point selection in large-scale FBG temperature sensors for thermal error modeling of heavy-duty CNC

Jianmin HU, Zude ZHOU, Quan LIU, Ping LOU, Junwei YAN, Ruiya LI

Journal Article

High-emitter identification for heavy-duty vehicles by temporal optimization LSTMand an adaptive dynamic

Zhenyi XU, Renjun WANG, Yang CAO, Yu KANG

Journal Article

dynamic mechanical characteristics and turning tool life under the conditions of excessively heavy-duty

Genghuang HE, Xianli LIU, Fugang YAN

Journal Article

Development of Heavy-Duty Gas Turbines in China in the New Era

Shu Guogang, Yu Chunhua, Shen Guohua, He Ai, Wang Zhaofeng, Wang Xiaobo

Journal Article

Photocatalysis: from solar light to hydrogen energy

Journal Article

Research on the theory and application of adsorbed natural gas used in new energy vehicles: A review

Zhengwei NIE,Yuyi LIN,Xiaoyi JIN

Journal Article

From Remotely Operated Vehicles to Autonomous Undersea Vehicles

Feng Xisheng

Journal Article

Extended model predictive control scheme for smooth path following of autonomous vehicles

Journal Article

A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Journal Article

Implementation of a flexible Major Vacation Toll-free Program for small passenger vehicles in China

Meng XU, Ziyou GAO

Journal Article

Investigating the role of exiting vehicles and turn indicator usage in gap acceptance at single-lane

Nathan P. BELZ

Journal Article