Microprocessor-based range meter for electric vehicles
- 1 January 1983
- report
- Published by Office of Scientific and Technical Information (OSTI)
Abstract
A Range Prediction Device (RPD) for electric vehicles (EVs) has been tested at the Electric Vehicle Test Facility in Chattanooga, Tennessee. Designed and constructed by the University of Aachen in West Germany, the RPD provides the EV driver with a real-time estimate of remaining vehicle range calculated from compensated ampere-hour measurements. Background information concerning the development of the RPD is included as well as theory of operation, user comments, and test procedures and results. Three different types of tests conducted in a Volkswagen Electrotransporter bus were used to simulate driving conditions and situations: real world (city and highway driving), 56-km/h constant speed, and the SAE J227a C cycle. Test results were plotted and compared with theoretical values for accuracy.Keywords
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