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

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.

scholarly journals Energy Consumption and Cost Savings of Truck Electrification for Heavy-Duty Vehicle Applications

2017 ◽  
Vol 2628 (1) ◽  
pp. 99-109 ◽  
Author(s):  
Zhiming Gao ◽  
Zhenhong Lin ◽  
Oscar Franzese
Keyword(s):  
Energy Consumption ◽  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
Cost Savings ◽  
Electrical Energy ◽  
Local Delivery ◽  
Heavy Duty ◽  
Heavy Duty Vehicle ◽  
Component Efficiency ◽  
And Performance

An evaluation was made of the application of battery electric vehicles (BEVs) and GenSet plug-in hybrid electric vehicles (PHEVs) to Class-7 local delivery trucks and GenSet PHEV for Class-8 utility bucket trucks over widely real-world driving data performed by conventional heavy-duty trucks. GenSet refers to a PHEV range extension mode in which the PHEV engine is used only to generate electricity and charge the battery if the PHEV battery is out of electrical energy. A simulation tool based on vehicle tractive energy methodology and component efficiency for addressing component and system performance was developed to evaluate the energy consumption and performance of the trucks. As part of this analysis, various battery sizes combined with different charging powers on the e-trucks for local delivery, and utility bucket applications were investigated. The results show that the e-truck applications not only reduce energy consumption but also achieve significant energy cost savings. For delivery e-trucks, periodic stops at delivery sites provide sufficient time for battery charging, and for this reason, a high-power charger is not necessary. For utility bucket PHEV trucks, energy consumption per mile of bucket truck operation is typically higher because of longer idling times and extra high idling load associated with heavy utility work. The availability of en route charging is typically lacking at the worksites of bucket trucks; thus, the battery size of these trucks is somewhat larger than that of the delivery trucks studied.

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.

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
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