A novel approach for decreasing driving energy consumption during coasting and cruise for the railway vehicle

Duo Zhang, Yin-Ying Tang and Qi-Yuan Peng

Energy, 2023, vol. 263, issue PA

Abstract: As for a railway vehicle, its kinetic energy comes from driving energy and is the practical motive power to push the vehicle forward. It is necessary to enhance the conversion efficiency of driving energy into kinetic energy for the economic profit and environmental benefit. This paper proposes an effective methodology to decrease driving energy consumption by optimizing the damping coefficients of the vehicle. The systematical calculation method of driving energy for the railway vehicle during the coasting phase is proposed and certificated according to the law of conservation of energy. The consumptions of kinetic energy and traction energy are selected as the research objectives for the coasting and cruise phases respectively, and the vehicle running safety and ride comfort are meanwhile considered as the basic requirements. For each type of suspension damper, the effect of its damping coefficient (DC) on the research objective is studied by dynamics simulations to narrow the distribution range of DCs. Finally the optimal combinations of DCs are proposed. It is demonstrated that the optimized vehicle model can decrease nearly 4% driving energy consumption. The approach proposed in this study can also be used to optimize other parameters of a railway vehicle for energy conservation.

Keywords: Railway vehicle; Driving energy consumption; Kinetic energy; Damping coefficient; Dynamics simulation (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:263:y:2023:i:pa:s0360544222025014

DOI: 10.1016/j.energy.2022.125615

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