Powertrain design alternatives for electric city bus

2012 IEEE Vehicle Power and Propulsion Conference Pub Date : 2012-10-01 DOI:10.1109/VPPC.2012.6422622

Antti Lajunen

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引用次数: 14

Abstract

The objective of this paper is to analyze the performance characteristics of different powertrain design alternatives in electric city bus. These powertrain alternatives are generated with different configurations of energy storage system, traction motor and transmission. Ultracapacitors and lithium based batteries are used as energy storages and induction and permanent magnet electric motors as traction motors. Simulations were performed in four different city bus driving cycles. Specific simulations were carried out for investigating the impact of the weight and auxiliary power on the energy consumption. The simulation results indicate that the powertrain efficiency and high potential for regenerating braking energy have significant impact on overall energy efficiency of the electric city bus. It was also observed that the most of the powertrain alternatives are well adapted for all simulated driving cycles. The driving cycle mainly impacts on the potential for regenerating the braking energy. The simulation results also show that higher auxiliary power consumption has much more influence on the overall energy consumption than increased weight of the bus.

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电动城市客车动力总成设计方案

本文的目的是分析电动城市客车不同动力总成设计方案的性能特点。这些动力系统备选方案是由不同配置的储能系统、牵引电机和变速器产生的。超级电容器和锂基电池被用作储能，感应电动机和永磁电动机被用作牵引电动机。在四个不同的城市公交行驶周期中进行了仿真。通过具体的仿真研究了重量和辅助功率对能耗的影响。仿真结果表明，动力系统效率和高制动能量再生潜力对电动城市客车的整体能效有重要影响。还观察到，大多数动力总成替代品都很好地适应了所有模拟驾驶循环。行驶循环主要影响制动能量再生的潜力。仿真结果还表明，辅助功耗的增加对总能耗的影响远大于母线重量的增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2012 IEEE Vehicle Power and Propulsion Conference

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