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Energy Management in Future Drivetrain Concepts

机译:未来动力传动系统概念的能源管理

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The integration of future powertrain, chassis and comfort functions introduces new aspects into the design of vehicle electric systems. In addition, legislation and customer requirements for reduced emissions and low fuel consumption drive automotive manufacturers to minimize CO_2 emissions with the introduction of new powertrain concepts. In this light, the complex control of on-board electricity generation and energy storage becomes increasingly important. This paper evaluates the need for advanced Energy Management in passenger cars with conventional, Integrated Starter Generator (ISG) and mild Hybrid Electric Vehicle powertrains. Based on the driving factors for fuel consumption and emission reductions, promising powertrain functions that impact the powernet design are described. These include engine idle removal by stop/start operation, regenerative braking, and operating point optimization with improved control of the generator or ISG. For two powertrain application examples, it is shown that these new functions require a re-design of the powernet hard- and software to guarantee robustness of the electrical system. Since the function requirements towards the battery or energy storage system will change for future powertrain concepts, non-conventional storage systems are briefly described. It is shown that the benefits of improved powertrain functionality in terms of fuel consumption and emissions need to be set-off against the on-cost for increased battery life cycle requirements.
机译:未来动力总成,底盘和舒适功能的整合引入了车辆电气系统设计的新方面。此外,对减少排放量和低燃料消耗的立法和客户要求驱动汽车制造商以尽量减少CO_2排放随着新动力总成概念。在这种光中,对板载发电和能量存储的复杂控制变得越来越重要。本文评估了具有传统,集成的入门发电机(ISG)和温和的混合动力电动车辆的乘用车先进能源管理的需求。基于用于燃料消耗和减排的驱动因素,描述了影响PowerNet设计的动力总成功能。这些包括通过停止/启动操作,再生制动和操作点优化以及改进的发电机或ISG控制而拆卸发动机空转。对于两个动力总成应用示例,示出了这些新功能需要重新设计PowerNet硬件和软件以保证电气系统的鲁棒性。由于对电池或能量存储系统的功能要求将改变未来的动力总成概念,因此简要描述非传统存储系统。结果表明,在提高电池寿命周期要求的架上,需要将改善动力总成功能改进的燃料消耗和排放的益处。

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