The worldwide growing demand for individual mobility with an increasing scarcity of fossil fuels and a rising need for sustainable environmental protection are the motivating factors for technology changes in automotive engineering. In this context lightweight construction is the big challenge in transportation currently and will remain so. Especially for electric mobility lightweight construction is essential due to range extension and the high weight of the battery. Besides constructional changes the intelligent use of material will be the solution to this task.In this paper, in order to illustrate electro mobility lightweight construction by using aluminium, two innovative automotive components -wheel hub motor and oil pan for a range extender are mentioned. In the wheel hub motor part, the concept to reduce weight and the important tasks of this concept are introduced first. After that, the requirements of Al alloys to be the suitable material, especially the method to increase the heat conductivity are shown. Also the mechanical properties and the corrosion behaviour of the new optimised AlSi8.5Mg-Alloy are presented. Moreover, the production concept and approach for weight reduction of the stator are provided. In the oil pan part, the heat balance and the reduction of the noise emission lead to the motivation to develop a new oil pan. According to this, the implementation of heat insulation and damping capacity by closed foam structure during oil pan construction are described. Following this, the methods to form foam structure are discussed. In addition, some results of the characterization of the foam structure material are shown.
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