Open AccessEvaluation of 2004 Toyota Prius Hybrid Electric Drive System Interim Report
Author(s) -
C.W. Ayers
Publication year - 2004
Language(s) - English
Resource type - Reports
DOI - 10.2172/885776
Subject(s) - automotive engineering , test bench , generator (circuit theory) , hybrid vehicle , internal combustion engine , interim , power (physics) , battery (electricity) , battery electric vehicle , work (physics) , electric motor , engineering , electrical engineering , mechanical engineering , physics , archaeology , quantum mechanics , history
Laboratory tests were conducted to evaluate the electrical and mechanical performance of the 2004 Toyota Prius and its hybrid electric drive system. As a hybrid vehicle, the 2004 Prius uses both a gasoline-powered internal combustion engine and a battery-powered electric motor as motive power sources. Innovative algorithms for combining these two power sources results in improved fuel efficiency and reduced emissions compared to traditional automobiles. Initial objectives of the laboratory tests were to measure motor and generator back-electromotive force (emf) voltages and determine gearbox-related power losses over a specified range of shaft speeds and lubricating oil temperatures. Follow-on work will involve additional performance testing of the motor, generator, and inverter. Information contained in this interim report summarizes the test results obtained to date, describes preliminary conclusions and findings, and identifies additional areas for further study