Elektromobilproduktion

Kampker, Achim

doi:10.1007/978-3-642-42022-1

Cited by 92 publications

(46 citation statements)

References 1 publication

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“…Due to the high expenditure of time, this process is related to high investments, since every LIB cell requires precise charging electronics . For quality‐control reasons—low internal resistance, self‐discharge, and high stability of the SEI layer—the LIB cell is transferred to an aging station and stored currentless in racks for up to 3 weeks, depending on the LIB cell chemistry and type. This leads to large space requirements, a high number of product carriers, andhigh energy costs, as some stages of the aging process are conducted with elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Mechanical and Thermal Loads during Lithium‐Ion Pouch Cell Formation and Their Impacts on Process Time

et al. 2019

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The most cost‐intensive components of the battery system for electric vehicles are the lithium‐ion battery cells. Thus, to reduce the overall cost of a battery system, a clear objective is to reduce the production cost of lithium‐ion battery cells. Cost drivers are to be identified, which are essential to enable potentials for cost reduction. In particular, the formation and aging process represents a high potential for process cost reduction because of its enormous process time expenditure. The automotive industry requires up to 3 weeks for the formation and aging process of a single lithium‐ion battery cell. Due to the high relevance of these processes, the research project OptiZellForm as part of the ProZell Cluster examines those production steps in detail. Environmental conditions such as mechanical load and elevated temperature as well as the electrical and chemical properties influencing the formation and aging process are investigated. The focus of this study is the investigation of the mechanical exertion and elevated temperature with regard to the reduction of the formation process duration and thus the reduction of the production cost. For this reason, a specially designed device is used to investigate these parameters for lithium‐ion battery cells.

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Section: Introductionmentioning

confidence: 99%

The Effects of Mechanical and Thermal Loads during Lithium‐Ion Pouch Cell Formation and Their Impacts on Process Time

et al. 2019

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“…Apart from the rotor, the design of an IM is similar to that of a PMSM. The stator basically consists of a stack of metal sheets and a winding which is wound into the evenly distributed stator slots along the rotors bore diameter [13]. For the rotor of the induction machine, two design structures are mainly considered-the slip ring and the squirrel-cage rotor [12,14].…”

Section: Machine Topologymentioning

confidence: 99%

“…This problem can be solved by using IPMSM, since the magnets are fixed within the rotor and the centrifugal forces are absorbed by the overlying laminated core. Additionally, the laminated core protects the magnets from mechanical damage and eddy currents [13].…”

Section: Machine Topologymentioning

confidence: 99%

Electric Machine Design Tool for Permanent Magnet Synchronous Machines and Induction Machines

2020

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The rising mobility demand of today’s society leads to an increasing strain of noise and pollutant emissions on people and the environment. An increasing environmental awareness and the scarcity of fossil fuels are increasingly placing alternative-powered vehicles in the focus of politics, research and development. Electric vehicles represent a promising solution to this problem. The electric machine represents a design control lever for the optimization of the electric powertrain with regard to efficiency, power, weight and size. Therefore, accurate and realistic machine design tools for the design of electric machines are becoming increasingly important. In this paper, the authors present an electric machine design tool for electric machines using MATLAB® in order to enable an automated machine design. The electric machine design tool is published under an LGPL open source license.

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“…Achieving economies of scale is a challenge for low volumes. By orienting the scalability on the level of individual functions, i.e., using the functions of a vehicle in different configurations and derivatives, economies of scale can still be achieved [51]. The importance of scale effects influences the degree of automation [4], the process span [10], the standardization of processes [52], the design stability as well as the linking of processes [15].…”

Section: Importance Of Economies Of Scalementioning

confidence: 99%

“…The boundary conditions may require motivation through additional which can consist of additional salaries or benefits [51]. Management must strive for maintaining motivation and morale to prevent labor turnover [4].…”

Section: Motivationmentioning

confidence: 99%

Production Strategy Development: Simulation of Dependencies Using Recurrent Fuzzy Systems

Brönner

Wolff

Jovanović

et al. 2020

Systems

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New and unsaturated markets are predominantly located in countries with low incomes. To successfully establish businesses in these new markets, an increasing globalization of value creation is necessary. The integration of these new markets is challenged by their dynamics, turbulence and regulation. Above all, an initially low and volatile demand as well as high barriers for market entry must be counteracted by economical small-series production. As market development is a major challenge for Small and Medium Enterprises (SME), knowledge about the impact of local conditions on their production strategy decisions is essential. Therefore, we design a recurrent fuzzy model combining country- and company-specific input factors as well as internal production parameters to obtain a transparent and reproducible impact statement. The model allows a simplified development of the expert knowledge base by mapping the influences in two steps. The application of the designed model is based on the example of the aCar mobility project, within which an electric vehicle was designed for local value creation in Africa. By applying the model for different African countries, strategy sensitivities can be identified, and recommendations derived.

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Elektromobilproduktion

Cited by 92 publications

References 1 publication

The Effects of Mechanical and Thermal Loads during Lithium‐Ion Pouch Cell Formation and Their Impacts on Process Time

The Effects of Mechanical and Thermal Loads during Lithium‐Ion Pouch Cell Formation and Their Impacts on Process Time

Electric Machine Design Tool for Permanent Magnet Synchronous Machines and Induction Machines

Production Strategy Development: Simulation of Dependencies Using Recurrent Fuzzy Systems

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