A Correlation Study Between Two Heavy-Duty Vehicle Chassis Dynamometer Emissions Testing Facilities

1993 ◽  
Author(s):  
S. Katragadda ◽  
R. Bata ◽  
W. G. Wang ◽  
Mridul Gautam ◽  
Nigel Clark ◽  
...  
Keyword(s):  
Correlation Study ◽  
Chassis Dynamometer ◽  
Heavy Duty ◽  
Heavy Duty Vehicle ◽  
Vehicle Chassis ◽  
Emissions Testing

Method for Translation of In-Use Fuel Consumption and NOX Emissions Between Different Heavy-Duty Vehicle Routes

2011 ◽  
Author(s):  
Oscar F. Delgado ◽  
Nigel N. Clark ◽  
Gregory J. Thompson
Keyword(s):  
Fuel Consumption ◽  
Relative Error ◽  
Nox Emissions ◽  
Vehicle Speed ◽  
Chassis Dynamometer ◽  
Heavy Duty ◽  
Simple Method ◽  
The Road ◽  
Heavy Duty Vehicle ◽  
Vehicle Activity

Portable emissions measurement systems (PEMS) are used to perform in-use measurements for emissions inventory and regulatory applications. PEMS data represent real world conditions more accurately than chassis dynamometer or engine dynamometer testing, arguably being the most realistic method of determining exhaust emissions over a certain driving route. However, measured emissions and fuel consumption depend strongly on both the route followed and the traffic situation that the vehicle encounters. A tool for translation of emissions and fuel consumption between diverse types of vehicle activity is required. The purpose of this paper is to assess the possibility of using route-averaged properties (kinematic parameters) for translation of fuel consumption and NOx emissions for a set of eighteen heavy-duty vehicles operating over up to eight different driving routes. A linear model developed for heavy-duty vehicle chassis dynamometer data modeling has been extended to in-use heavy-duty vehicle data. Two approaches were implemented; the first approach mimicked the prior chassis dynamometer work by incorporating average vehicle speed and average positive acceleration and the second approach incorporated road grade in a characteristic power parameter. The end result is a simple method which was shown to be accurate for estimation of fuel consumption (within 5% relative error) and NOx emissions (within 12% relative error) for over-the-road vehicles over “unseen” roads or traffic situations, without the need to perform additional over-the-road tests.

Research on the Test for Complete-Vehicle Emission and Fuel Consumption of the Refuse Truck by Chassis Dynamometer

2013 ◽  
Vol 718-720 ◽  
pp. 1825-1830
Author(s):  
Kong Jian Qin ◽  
Chang Yuan Wang ◽  
Jia Yan ◽  
Xue Hao Liu
Keyword(s):  
Fuel Consumption ◽  
Fuel Economy ◽  
Emission Factor ◽  
Vehicle Emission ◽  
Emission Characteristics ◽  
Chassis Dynamometer ◽  
Heavy Duty ◽  
Vehicle Type ◽  
Heavy Duty Vehicle ◽  
Significant Difference

Refuse truck accounted for 70% of the sanitation vehicle, which was the major heavy duty vehicle type in city. Therefore its fuel economy and emission characteristics were under higher requirements. This research did the emission test on the chassis dynamometer by using compressed truck, testing C-WTCV and CCBC circle emission, and fuel consumption respectively. The research showed the Km fuel consumption of CCBC circle was about 1.3 times of the C-WTVC from the analysis of fuel consumption and the emission of CO2.From the analysis of emission factor, the emission of NOX and CO of the CCBC circle was both higher than the C-WTVC, respectively 1.9 times and 1.4 times. However, the emission of HC was only 36% of the C-WTVC. C-WTVC was very similar to the motor of the CCBC circle in city, however the motorway cycle and emission both had significant difference from CCBC circle.

The First Transportable Heavy Duty Vehicle Emissions Testing Laboratory

1991 ◽  
Author(s):  
R. Bata ◽  
Nigel Clark ◽  
Mridul Gautam ◽  
A. Howell ◽  
T. Long ◽  
...  
Keyword(s):  
Vehicle Emissions ◽  
Heavy Duty ◽  
Testing Laboratory ◽  
Heavy Duty Vehicle ◽  
Emissions Testing

Interlaboratory Cross-Check of Heavy-Duty Vehicle Chassis Dynamometers

2002 ◽  
Author(s):  
Michael L. Traver ◽  
Christopher J. Tennant ◽  
Thomas I. Mcdaniel ◽  
Steven S. Mcconnell ◽  
Brent K. Bailey ◽  
...  
Keyword(s):  
Heavy Duty ◽  
Heavy Duty Vehicle ◽  
Vehicle Chassis

Determination of Heavy-Duty Vehicle Energy Consumption by a Chassis Dynamometer

1992 ◽  
Author(s):  
Wenguang G. Wang ◽  
G. Michael Palmer ◽  
Reda M. Bata ◽  
Nigel Clark ◽  
Mridul Gautam ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Chassis Dynamometer ◽  
Heavy Duty ◽  
Heavy Duty Vehicle

scholarly journals Regional and environmental impacts of expanding the heavy duty vehicle charge to the secondary road network in Austria

Empirica ◽  
2012 ◽  
Vol 39 (2) ◽  
pp. 261-278 ◽  
Author(s):  
Karl W. Steininger ◽  
Christoph Schmid ◽  
Alexandra Tobin
Keyword(s):  
Environmental Impacts ◽  
Road Network ◽  
Heavy Duty ◽  
Heavy Duty Vehicle
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