Experimental Measurement of the Environmental Impact of a Euro IV Vehicle in its Urban Use

Ortenzi, Fernando; Campbell, Federico Villatico; Zuccari, F.; Ragona, R.

doi:10.4271/2007-01-0966

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…From previous works [3,4] it has been possible to develop a new approach for real time measurement of the engine and vehicle parameters from OBD connector while, in conjunction with an exhaust analyzer (Horiba OBS 1300, named OBS in this paper), have been performed on-road acquisition campaigns on conventional vehicles and hybrids [1,2,4]. In [1,2] different drivers have driven 3 Honda cars (two hybrids and one conventional) on the same path and big differences in terms of emissions produced have been observed from driver to driver.…”

Section: Introductionmentioning

confidence: 99%

“…This difference is due to how the driver uses the accelerator pedal and in particular to its variation or the standard deviation. Also the conditions in which the thermal engine produces the highest levels of emissions have been investigated (cold start, full load and transients) [4] and also the optimal conditions (steady state) in which there are very low values of NO x , CO and HC produced.…”

Section: Introductionmentioning

confidence: 99%

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A New Method to Calculate Instantaneous Vehicle Emissions using OBD Data

Ortenzi¹,

Costagliola²

2010

SAE Technical Paper Series

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The actual type approval procedure of vehicles, based on a fixed driving cycle for all the vehicles (NEDC), is not representative of their real on-road usage: the driving style and its influence on consumption and emissions cannot be neglected. The on road impact of vehicles on their real use is not known and it is difficult to measure (the PEMS are expensive, have big volume and mass and need continuous maintenance); the objective of this work is to develop a methodology to calculate in real time the energy and environmental impact of spark ignition vehicles, using the onboard sensors of the vehicle and emissions models to calculate them.An onboard instrumentation able to communicate with the electronic system of the vehicle (OBD/CAN) was developed to collect all the sensor data installed on a vehicle: those values are used as input values to the emissions models of CO 2 , CO, HC and NO x developed in the present work. The CO 2 and CO have been calculated using a chemical equilibrium combustion model with 6 combustion products, with the equilibrium temperature used as a calibration constant. HC and NOx, produced during transients, are assumed to be dependent from the accelerator pedal gradient, but during engine cold start also from the catalyst temperature.To validate the models, a spark ignition hybrid vehicle, the Honda Civic Hybrid has been tested on a chassis dynamometer running the three Artemis driving cycles. The emissions have been measured with the CVS (taken as reference) and with a portable emission analyzer, (Horiba OBS 1300), used for comparison with the models. The results shows that the values calculated by the models are comparable with those measured by OBS, but for HC and NO x are better because the OBS gave inaccuracies due to its high minimum resolution.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Method to Calculate Instantaneous Vehicle Emissions using OBD Data

Ortenzi¹,

Costagliola²

2010

SAE Technical Paper Series

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“…This kind of procedure is not representative of the real on-road use of vehicles, characterized by a more dynamic speed profile: a fixed driving cycle, equal for all the vehicles penalizes low power weight ratio vehicles that see the driving cycle more hard to execute than vehicles with higher ratios and does not take account for the driving style; the influence of driving style to the emissions in driving the same vehicle is not negligible [1,2].…”

Section: Related Workmentioning

confidence: 99%

“…There are two basic approaches that may be taken to combine the Environmental Protection Agency (EPA) detailed emissions and fuel consumption data, used in the Motor Vehicle Emission Simulator (MOVES) model, with microscopic simulation tools, such as VISSIM [2].…”

Section: Related Workmentioning

confidence: 99%

Efficient Estimation of Fuel Consumption Using Fuzzy Logic

Latha¹,

Menaga²,

K³

2014

IJETT

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ABSTRACT-Fuzzy logic is a rule based system which is implemented using if then rules. For example two parameters say x & y are varied in order to know which parameter effects the fuel efficiency. This paper explores in particular the use of fuzzy logic in the Efficient estimation of fuel consumption. We present an intelligent Engine Control Unit (ECU) that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. Here, PCA is used to reduce the data collected using reduction algorithm where Principal Component Analysis (PCA) is the best, in the mean-square error sense, linear dimension reduction technique. It is a statistical procedure that uses orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of linearly uncorrelated variables called principal components. Hence, The fuel efficiency of the vehicle and the efficiency of the driver can be calculated using the sensor data available in the vehicle.

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“…Por su parte, la Universidad "La Sapienza" de Roma en el año 2007 mostró que durante los transitorios de operación y en particular durante las aceleraciones, las emisiones contaminantes y el consumo de combustible aumentan fuertemente debido al enriquecimiento de la mezcla (Ortenzi et al, 2007).…”

Section: Metodología De Medida De Emisiones En Tráfico Real Y De Análunclassified

Aspectos de la medición dinámica instantánea de emisiones de motores. Aplicación al desarrollo de un equipo portátil y una metodología para estudios de contaminación de vehículos en tráfico real.

González¹

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Experimental Measurement of the Environmental Impact of a Euro IV Vehicle in its Urban Use

Cited by 7 publications

References 1 publication

A New Method to Calculate Instantaneous Vehicle Emissions using OBD Data

A New Method to Calculate Instantaneous Vehicle Emissions using OBD Data

Efficient Estimation of Fuel Consumption Using Fuzzy Logic

Aspectos de la medición dinámica instantánea de emisiones de motores. Aplicación al desarrollo de un equipo portátil y una metodología para estudios de contaminación de vehículos en tráfico real.

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