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42V Energy Storage Systems for Stop-Start Application in Hybrid Vehicles

机译:用于混合动力汽车起停应用的42V储能系统

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The introduction of a 42V PowerNet enables new powertrain features in future vehicles. An IntegratedrnStarter Generator (ISG) can combine several features in one component: fast engine start-up andrnshutdown, electric power generation with high efficiency, brake energy recuperation and launch assist.rnHowever, most of these features are restricted by the on-board energy storage capability.rnBased on real world driving experience with a technology demonstrator vehicle, equipped with an ISGrnsystem and dual voltage PowerNet, the energy throughput of the high power 36V Lead Acid battery isrnanalysed in this paper. Of particular interest is the energy used for torque addition during launch assistrnphases. It is shown that in order to reduce battery service intervals, either the launch assist functionrnmust be restricted, or a different advanced storage system needs to be employed.rnThe paper describes and evaluates a number of advanced battery technologies that can match the usagernprofiles of typical storage systems in the 42V PowerNet. Among these technologies are ValvernRegulated Lead Acid (VRLA), Nickel Metal-Hydride (NiMH) and Lithium battery systems. Therndescription is completed with supercapacitor cells.
机译:引入42V PowerNet可在未来的车辆中实现新的动力总成功能。集成式启动器发电机(ISG)可以在一个组件中结合多种功能:快速的发动机启动和关闭,高效的发电,制动能量回收和启动辅助。然而,大多数这些功能受车载能量存储的限制基于装备有ISGrn系统和双电压PowerNet的技术演示车辆在现实世界中的驾驶经验,本文对高功率36V铅酸蓄电池的能量通过量进行了分析。特别感兴趣的是在发射辅助阶段期间用于扭矩增加的能量。结果表明,为了缩短电池维护间隔,要么必须限制启动辅助功能,要么需要使用其他高级存储系统。本文描述并评估了许多可以与典型存储的使用情况相匹配的高级电池技术。 42V PowerNet中的系统。在这些技术中,有阀控铅酸(VRLA),镍金属氢化物(NiMH)和锂电池系统。说明是使用超级电容器单元完成的。

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