One of the main weak spots of common electric vehicles (EVs) is their low range. Many solutions are considered to solve this problem. Most approaches focus on the battery itself by using new material combinations. Another possibility is to rethink the battery concept completely. Beyond fixed batteries in the vehicle one idea utilizes the exchange of the whole battery. However, the hybrid solution, which means to swap only a smaller part of the battery pack, appears to be promising. In the following discourse two possible solutions are described. This approach furthermore indicates the effects on the vehicle concept. We conclude with the importance of the user value, which is a key factor in designing battery powered EVs. After introducing the new concepts A (battery fixed in the vehicle and additional manual battery units for range extension) and B (building set with battery units visible from the outside for automatized switching) , it is necessary to consider the improvements in the context of the conventional battery concepts, in order to evaluate which concept is most appropriate for implementation. Compared to the disadvantages of the fixed battery in the electric vehicle described here some problems could be mitigated or even solved. The following problem areas will be improved: The user is now able to bridge longer distances without time-consuming charging. Depending on the selected use case and battery size, the effect varies. If there is a breakdown by discharge, the user has the possibility to recharge the vehicle with a fully charged battery unit from the next petrol station. Thus to overcome consumer concerns about a breakdown with an EV can be overcome. The changes in comparison with the battery switching station are checked in the same manner. The improvements with concept B become clear in the following aspects: The infrastructural effort can be reduced with modularized batteries for automatized switching. It is well known that modular product systems entail huge savings. However, the restrictions concerning the vehicle architecture will persist. The user acceptance can be increased gradually by using visible battery units from experienced and proven manufacturers. To classify the modifications made in the present article we use a visual representation with the relevant factors. The usual charging method is well proven and also manageable in effort, but the long charging times remain. Concept A with additional manual battery units increases the user-friendliness. On the other side new costs are expected and the operator safety of one manual battery unit is not yet confirmed. The battery switching station is still very expensive but user-friendly. With concept B the costs and also indirectly, the price, decrease. The solution of inductive charging is also marked in this chart although it is not clear when and whether the safety and the product maturity will be sufficient. There are also long charging times expected. However, the solution is easy to use.


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    Title :

    New concepts for energy storages in an electric vehicle - Battery modules which enunciate the power generation!


    Contributors:
    Holder, D. (author) / Maier, T. (author)


    Publication date :

    2012


    Size :

    15 Seiten, 12 Bilder, 19 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English





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