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- W2969487744 abstract "The diesel-driven rail vehicles are gradually replaced by battery-powered rail vehicles (BRVs), due to its exhaust emissions and noise. However, the development of BRVs have two aspects that need improvement: low energy efficiency and poor downhill stability. To address these problems, this paper presents the design and downhill speed control of an electric-hydrostatic hydraulic hybrid (EH3) powertrain, which is mainly composed of a variable pump, a variable pump/motor, a proportional flow control valve (PFCV) and accumulators. Through a laboratory test bench, the hydraulic regenerative/non-friction braking performance of an EH3 powertrain is validated and experimentally analyzed. The hydraulic average energy recovery rate could be 50%. The method of downhill speed control is proposed, which is validated by the simulation results. During the downhill process, EH3 rail vehicle has a relatively high energy efficiency, which will bring good economic benefits in energy conversation and environmental protection." @default.
- W2969487744 created "2019-08-29" @default.
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- W2969487744 date "2019-11-01" @default.
- W2969487744 modified "2023-09-26" @default.
- W2969487744 title "Design and downhill speed control of an electric-hydrostatic hydraulic hybrid powertrain in battery-powered rail vehicles" @default.
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- W2969487744 doi "https://doi.org/10.1016/j.energy.2019.115957" @default.
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