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Senior Project - Cyrano


Data Acquisition Tool for Hybrid Electric Vehicles

Senior Project: 1993-1994
Eric Frohlick, Michael McKeever, George Mudrak and Brandon Velarde
Advanced Vehicle Systems Branch
Golden, CO

The National Renewable Energy Laboratory's Advanced Vehicle Systems Branch is responsible for collecting data from the Hybrid Electric Vehicle Challenge, a student engineering competition which will involve 42 vehicles from the United States and Canada in June 1994. The purpose of this project was to design, program, test, and document a Windows-based program to display, store, and analyze the data taken during the competition. The data acquisition hardware was a Kilowatt-Hour+ meter from Cruising Equipment in Seattle, which measures voltage, current, time, and calculated kilowatt-hours used. The meter sends these four pieces of information every second to a standard RS-232 port, which may be plugged into a laptop, where it may be displayed using various visual representations of the data, e.g. as a digital display, as a bar graph, or as a gauge. Various display configurations can be designed, stored, and reused. In addition to the capability to display the incoming data second by second in real time, the program also provides a means to calculate and display instantaneous power output from the measured current and voltage, computation to check the equipment's kilowatt-hour calculation, and a battery energy remaining calculation and gage display. The software was developed using Visual C++ in a PC Windows environment.

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Department of Computer Science
College of Engineering and Applied Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
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