Browse Publications Technical Papers 2019-01-0724
2019-04-02

Costs and benefits, application of lightweight technology in electric vehicles 2019-01-0724

The lightweight technology takes an important role in electric vehicle(EV) energy conservation, as lighter vehicle means less energy consumed in same cycle. In this paper, the typical energy requirement in an NEDC cycle is investigated, and the relationship between lightweight rate and energy consumption reduction effectiveness is given. The benefit of lightweight to EV come from the less battery cost because of less energy requirement. For EVs, with less battery cost, a certain lightweight rate can be obtained with little or no total cost. While in case that lightweight rate is very high, the battery cost won't be able to cover the lightweight cost. Besides, the relationship between driving range and battery capacity is discussed in this paper. It is found that there is a limitation of EV driving range, which is determined by the battery energy density.

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