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Design rules for high-volume production of electric motors for automotive systems

机译：汽车系统电动机大批量生产的设计规则

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摘要

Last few years have shown, that electrification of a car is inevitable. New electromechanical systems are in development, e.g.: electric propulsion system for hybrid and electric vehicle, electric climate compressor, etc. At the same time, traditional systems like power steering, water and oil pump are being redeveloped, with the aim to increase their efficiency and reduce their weight. This is possible by using electromechanical actuation with controlled electric motor. Today, the average number of electric motors installed in a middle class vehicle is about eighty. Average weight of mounted electric motors is about 28 kg. Introducing of new technologies will continuously increase demand for electric motors in power range from few W to hundreds of kW. Additionally, there are very broad requirements' spectrums for such e-motors, e.g.: different types (synchronous, asynchronous, brush type, reluctance, etc.), different voltages (low voltage < 60 V, higher voltage, e.g. 400 V), various cooling methods (air, water, oil cooling), size, power etc. All of these, due to reduced development time to market, require know-how in area of development of electric machines with considering of following aspects: modularization, materials (magnet, lamination), high volume production, manufacturing tolerances, costs, etc. These requirements are apart of know-how necessary for the design and production of optimized electric motors for high-volume automotive applications.
机译：最近几年表明，汽车电气化是不可避免的。新的机电系统正在开发中，例如：混合动力和电动汽车的电动推进系统，电动气候压缩机等。同时，传统系统如动力转向，水和油泵也正在重新开发，旨在提高其效率。并减轻体重。这可以通过在受控电动机上使用机电致动来实现。如今，安装在中产阶级车辆中的电动机的平均数量约为80个。安装的电动机的平均重量约为28千克。引入新技术将不断增加对功率范围从几瓦到几百千瓦的电动机的需求。此外，此类电动机的需求范围非常广泛，例如：不同类型（同步，异步，电刷类型，磁阻等），不同电压（<60 V的低电压，例如400 V的较高电压），各种冷却方法（空气，水，油冷却），尺寸，功率等。所有这些，由于缩短了产品上市时间，因此在电机开发领域需要专有技术，并要考虑以下方面：模块化，材料（磁体，叠片），大批量生产，制造公差，成本等。这些要求是设计和生产用于大批量汽车应用的优化电动机所必需的专有技术。

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