This article presents the new system of virtual powertrain development introduced at Porsche AG that incorporates all phases of the development process, as well as all components and simulation disciplines. The system enables a powertrain in its entirety to be designed and tested virtually. Most activities can be planned and budgeted at the beginning of the project, and interactions that occur are systematically taken into consideration. The hardware-driven development process used until now is completely transmitted to the digital world. Powertrain development is divided into thirteen digital powertrain systems (DPSs), which contain different components and disciplines and are developed throughout the entire product development process. For each DPS, tasks, links, time schedules, reporting scopes, and responsibilities are precisely defined. Finally, a digital vehicle prototype is built from several DPSs. The results are aggregated in several stages, ensuring that core statements are consistently incorporated at all assessment levels, from the individual component to the overall vehicle. Furthermore, this article discusses in detail DPSs that are especially important for battery electric vehicles. For most of the examples, the powertrain of the Porsche Taycan is used. The Driving Performance and Load Spectra DPS provide the necessary design parameters for a new drive system. In the Electric Motor DPS, active parts of the electric motor are designed and all structural components are verified. In the Transmission DPS, all gear set parts are designed and verified. In the Cooling, Lubrication and Actuation DPS, all temperatures are calculated and the lubrication circuit is designed. The Powertrain Dynamics DPS provides information on powertrain vibrations. The article closes with a look at future development trends. The aim is not just to design and verify components but also to completely virtualize function and software development. Therefore, this article presents a system for creating and using a virtual development environment and tracking the results.

中文翻译：

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虚拟动力总成开发

本文介绍了 Porsche AG 引入的虚拟动力总成开发新系统，该系统包含开发过程的所有阶段以及所有组件和模拟学科。该系统可以虚拟地设计和测试整个动力系统。大多数活动可以在项目开始时进行计划和预算，并且会系统地考虑发生的相互作用。直到现在使用的硬件驱动的开发过程完全传输到数字世界。动力总成开发分为十三个数字动力总成系统（DPS），它们包含不同的组件和学科，并贯穿整个产品开发过程。对于每个 DPS，任务、链接、时间安排、报告范围和职责都有精确的定义。最后，由多个 DPS 构建数字车辆原型。结果在几个阶段汇总，确保核心陈述在从单个组件到整个车辆的所有评估级别中始终如一地纳入。此外，本文详细讨论了对纯电动汽车尤为重要的 DPS。大多数示例都使用了保时捷 Taycan 的动力系统。驱动性能和负载谱 DPS 为新驱动系统提供必要的设计参数。在电机 DPS 中，设计了电机的活动部件并验证了所有结构部件。在变速箱 DPS 中，所有齿轮组零件都经过设计和验证。在冷却、润滑和驱动 DPS 中，计算所有温度并设计润滑回路。Powertrain Dynamics DPS 提供有关动力系统振动的信息。文章以展望未来的发展趋势结束。目的不仅是设计和验证组件，而且是完全虚拟化功能和软件开发。因此，本文提出了一个用于创建和使用虚拟开发环境并跟踪结果的系统。