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Development of light–weight design technologies for the secure mounting of battery into the body of electric vehicles
Author(s) -
Kim K. J.
Publication year - 2017
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201700010
Subject(s) - automotive engineering , battery (electricity) , powertrain , stiffness , engineering , electric vehicle , battery pack , mechanical engineering , power (physics) , structural engineering , torque , physics , quantum mechanics , thermodynamics
A common feature of electric vehicles is that they do not emit exhaust gases, such as CO 2 or NO x , have low noise and vibration harshness, and are silent as a result of using secondary electric energy, i. e. alternatives to petroleum. The case of an electric vehicle, where a motor system can be substituted for a combustion engine comprises a very fascinating power source which is environmentally sustainable. However, due to the low power performance of the motor and battery source, it is necessary to reduce the weight of the electric vehicle to increase efficiency. In the present study, the stiffness and strength analysis was conducted to evaluate the safety of the battery mounted parts. For these, the CAE (computer aided engineering) simulation of the full vehicle (Metro by Geo Co.=base model) model was performed. The strength criteria evaluation satisfied the tensile strength of the surrounding material in the battery mounting after applying the load of X=‐4 g. In order to improve the stiffness and strength of the base model, a change in design was proposed. A new structure for the floor was suggested to improve the battery mount. This model is designed to improve the act of exchanging batteries, by integrating the body in white fixture in the model. To confirm the possibility of body in white weight reduction, the structure section of overlapped portions and its thickness thinning was studied. From these results, it was confirmed that the body in white design should be possible with high stiffness and strength.