Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Chassis dynamometer."”.
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Development of a heavy-duty vehicle chassis dynamometer test route
A heavy duty vehicle chassis dynamometer driving route, titled "City-Suburban Heavy Vehicle Route" (CSHVR) was developed. Data for designing the CSHVR were collected using a Campbell Scientific 21x. Procedures were developed to reduce statistically the speed and time data into representative speed …
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Comparison of engine and chassis dynamometer test methods for three heavy-duty vehicles emissions characterization, A
Includes bibliographical references (pages 135-140).
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Development of a Hybrid Vehicle Powertrain Test Laboratory
… and tested a fully functional eddy-current chassis dynamometer testing facility on campus. An automotive test facility requires a systems engineering approach to install, calibrate and commission a chassis dynamometer. This thesis shows that, the dynamometer test facility was successfully …
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Reduction of natural gas engine emissions using a novel aftertreatment system
… Testing Laboratory. A heavy-duty transportable chassis dynamometer and a dedicated "clean" dilution tunnel were used to sample emissions from the vehicle. Past studies indicate that the use of a clean dilution tunnel omits the possibility of background emission concentrations being higher than …
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Evaluation of opacity, particulate matter, and carbon monoxide from heavy-duty diesel transient chassis tests
… through snap-acceleration tests and transient chassis dynamometer tests. Emission data were gathered using the West Virginia University (WVU) Transportable Heavy Duty Vehicle Emission Testing Laboratories (THDVETL) and opacity data were collected from two opacity meters; the Wager 650CP full …
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An Investigation of Wear-Resistant Coatings on an A390 Die-Cast Aluminum Substrate
… second a change in performance using an ATV and chassis dynamometer, third the amount of material lost, through wear, was measured using a profilometer, and finally a scanning electron microscope which was used to identify the dominate mechanism of wear in the sheave material. All of the tests …
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VEHICLES¿ NON-EXHAUST EMISSIONS: SETUP OF EXPERIMENTAL APPROACHES FOR ON-ROAD CHARACTERIZATION OF TIRE WEAR AND ROAD DUST PARTICLES
… spanning tire testing laboratory environment, chassis dynamometer, and real-world on-road vehicle tests. The work focused on building feasible, reproducible, and scalable approaches from scratch, which integrate test design, aerosol sampling principles, and instrumentation with …
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Investigation of Emissions and Fuel Economy for the Integrated Bus Information System
… (PM). Most data used in this study were based on chassis dynamometer testing conducted by West Virginia University (WVU), considering that chassis dynamometer test cycles could reflect the actual vehicle operations.;Many factors affect emissions and fuel economy, including vehicle parameters, fuel …
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Development of a vehicle robotic driver with intelligent control system modelling for automated standard driving-cycle tests
… a trained driver to follow driving profiles on a chassis dynamometer. This project involves development of a robotic driver controller for the automation of dynamometer-based vehicle testing according to industry standard driving cycle tests and produce repeatable results by replacing the …
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Plug-in Hybrid Electric Vehicle Supervisory Control Strategy Considerations for Engine Exhaust Emissions and Fuel Use
… engine is operating. Vehicle testing data from a chassis dynamometer is presented in support of the research.
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Characterization of the composition and toxicity of particulate matter emissions from advanced heavy-duty natural gas engines
… transit buses were tested on WVU's heavy-duty chassis dynamometer in Stockton, CA. A wide array of sampling procedures was included to characterize the complete chemical composition of the exhaust. The toxicity analysis included three different assays a) DHBA b) DTT and c) alveolar macrophage …
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An ECMS-Based Controller for the Electrical System of a Passenger Vehicle
… data and, finally, validation on a vehicle chassis dynamometer considering a standard (production) alternator control strategy.Next, a novel alternator control algorithm is designed by applying the Equivalent Consumption Minimization Strategy (ECMS), a well known energy management approach …
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Investigation of PM Formation and Evolution in Plumes Emitted by Heavy-Duty Diesel Vehicles: Wind Tunnel Study
… The vehicles were tested on WVU's medium-duty chassis dynamometer, with the load applied to the truck reflecting the road load equation at the respective vehicle test speeds. Wind tunnel wind speed and vehicle speed were maintained in close proximity to one another during the entire test. …
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Quantifying the Impact of Traffic-Related and Driver-Related Factors on Vehicle Fuel Consumption and Emissions
… NOx within 95 percentile confidence limits of chassis dynamometer tests conducted by EPA. Comparing with the current state-of-practice, the proposed statistical models provide better estimates for vehicle fuel consumption and emissions because speed variances about the average speed along a …
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Modeling Light Duty Vehicle Emissions Based on Instantaneous Speed and Acceleration Levels
… model version 2.0 utilizing second-by-second chassis dynamometer emission data for a total of 60 light duty vehicles and trucks. Also, the dissertation introduces a procedure for estimating second-by-second high emitter emissions. This research initially investigates high emitter emission …
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Electric vehicle powertrain design with battery swapping and vehicle to grid implementation.
Described in this work are methodologies for the design and development of electric vehicle (EV) powertrains through modeling, simulation and validation on a real-world systems, with detailed analysis of results. A system for swapping, storing and managing EV batteries, including a Deep Neural …