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Implementation of Gasoline Electric Hybrid Vehicle Technology at the University of Queensland
Published September 13, 1993 by ISATA - Dusseldorf Trade Fair in United Kingdom
Event: ISATA 1993
Since 1979 a Research and Development group at the University of Queensland, Australia has designed and tested several hybrid vehicles (3 of which are reported here), a regenerative braking system for a 12 ton transit bus, a 200 kW, 4-wheel-drive underground mining vehicle and 3 hybrid power generator systems for remote areas. Detail design has also been undertaken for a hybrid drive for a 200-ton dump truck and locomotives.
Although the major saving in fuel consumption can be accomplished by converting automobiles to hybrid drives, these are not likely to be implemented unless there is strong government legislation either to save the environment or liquid fuel. This results from the fact that although a hybrid drive can be comparable to a standard vehicle's performance it cannot be produced at the low cost associated with gasoline engines (although these are now very complex) and standard transmissions. However, the economic advantages for larger vehicles is undeniable and the wide experience gained by the Australian Research Group enables it to implement optimum hybrid systems for all vehicles despite the highly nonlinear behavior of a hybrid concept, the difficult impedance mismatch between the vehicle and the driving mechanisms and not least the very wide power demands which fluctuate rapidly.
The paper describes the experience on automobiles with battery energy storage and discusses some of the features which are fundamental to hybrid vehicle technology.