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Methodical approach for designing electric propulsion systems containing two motors

机译:设计包含两个电动机的电力推进系统的方法方法

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To reduce the environmental impact of the petroleum-based transport, new safe, cost and energy optimized electric vehicle propulsion concepts are mandatory. Besides the activities for improving the battery and power electronics technologies, highly integrated units and new functional component operation strategies are of special interest. In this paper, a methodical approach for deriving electric motor design values for electric propulsion systems, especially usable for urban vehicles, including two electric machines, is shown. Considering the overall results a new highly integrated electric drive containing two different sized electric motors, two clutches and a compressor in one single unit is used as an example. The design led to a variety of functional motor modes presented in the paper. On upscaled measurement results, the efficiency tables for 50 kW and 10 kW PSM- and ASM-motors are used for a combined working strategy. Using the 10 kW motor on low torque and speed requests the traction energy demand of a urban vehicle could be reduced in the range up to 5% on several drive cycles.
机译:为了减少基于石油的运输对环境的影响,新的安全,成本和能源优化的电动汽车推进概念是强制性的。除了改善电池和电力电子技术的活动外,高度集成的单元和新的功能组件操作策略也引起了人们的极大兴趣。在本文中,展示了一种用于推导电动推进系统(特别是可用于包括两台电机的城市车辆)的电动推进系统的电动机设计值的有条理的方法。考虑到总体结果,以一个新的高度集成的电驱动器为例,该驱动器在一个单元中包含两个不同尺寸的电动机,两个离合器和一个压缩机。该设计导致本文介绍了多种功能性电机模式。在放大的测量结果上,将50 kW和10 kW PSM和ASM电机的效率表用于组合工作策略。在低扭矩和低转速要求下使用10 kW电动机,在多个行驶周期内,城市车辆的牵引能量需求可降低多达5%。

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