Combined Electromechanical Converter for Hybrid and Electric Vehicles

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Oleksandr O. Beshta, Ivan Lutsenko, Serhii Fedoriachenko, Mariia Vesela (2017). Combined Electromechanical Converter for Hybrid and Electric Vehicles. Mechanics, Materials Science & Engineering, Vol 10. doi: 10.2412/mmse.46.29.770

Authors: Oleksandr O. Beshta, Ivan Lutsenko, Serhii Fedoriachenko, Mariia Vesela

ABSTRACT.The role of energy conversion within the transportation sector becomes more and more important due to increasing consumption efficiency demands for cars and trucks. Especially for electrical drive trains (e-drive train), which are topic of this talk, a lot of work is going on to achieve this goal. In e-drive train setups higher electrical power compared to combustion driven truck’s or car’s standard drive trains is converted. Besides in these systems complexity and costs are rising, mainly originating from very expensive electrical energy storages – the accumulators. Taking all these boundary conditions into account, up to date there is the demand for maximized energy conversion efficiencies on system level to succeed in market. Beside the electrical conversion process, also size and weight of the care are key parameters. Here different approaches concerning the weight like automotive lightweight constructions are seen. Within e-drive train setups energy storage is also an important issue. Here, the range varies from classical fossil tanks for range extenders over accumulators for electrical vehicles up to a mixture of both of them for hybrid cars. Finally to reduce the amount of needed energy to be stored, a new approach of energy generation is reported. Here for generating the energy only few reports are seen employing a direct energy conversion from the sun for the e-drive train by photovoltaic, offering a limited power but in total unlimited energy source. Feasibility of this energy reduces demands on the accumulator what can be seen in a reduced size and is main task of this talk. Furthermore a new direct energy conversion path is introduced increasing conversion efficiency while reducing component cost and size. Besides the conversion efficiency, new degrees of freedom are obtained by self pv-charging without of the surrounding infrastructure. This ability is offered while driving as well as in idle or stop modes, helping to increase the accumulator’s lifetime while reducing demands on the driving habits of the driver. Reducing the need for the total amount of stored energy also has a positive influence on the system mass which can be reduced. This counterpart plays an important role in reducing price while having a viable total cruising distance.

Keywords:electric vehicle, combined electromechanical converter, DC power sources, electric drive

DOI 10.2412/mmse.46.29.770

References

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