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Improvement of Citybus Fuel Economy Using a Hydraulic Hybrid Propulsion System - A Theoretical and Experimental Study
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English
Abstract
The paper describes the application of a hydraulic pump/motor and a hydro-pneumatic energy-storage as a supplement to the conventional internal combustion engine in a city bus.
The resultant hybrid-system makes it possible to smooth out the combustion engine power output and to regenerate the braking-energy which in conventional busses dissipate as heat.
Computer-simulation and supplementary experiments with a model-system have shown that, depending on the driving pattern of the bus, this type of hybrid-system would lead to a 10 - 30% fuel saving provided that an appropriate control strategy is used.
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Citation
Buchwald, P., Christensen, G., Larsen, H., and Sunn Pedersen, P., "Improvement of Citybus Fuel Economy Using a Hydraulic Hybrid Propulsion System - A Theoretical and Experimental Study," SAE Technical Paper 790305, 1979, https://doi.org/10.4271/790305.Also In
References
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