Integrated power pack unit

传统的内燃机汽车存在着高排放、高油耗的问题。汽车客户对更高的燃油经济性、功能性、连通性和便利性的需求，增加了车辆在推进和附件负载方面的电动化。尽管市场上有混合动力电动汽车(HEV)、插电式混合动力汽车(PHEV)和全电动汽车(EV)等节能型选择，但它们与高电压(300V或更高)电动推进和大容量电池存储相关的显著较高的前期成本影响了它们的大规模采用。此外，传统的低压12V电网正在达到其极限，无法有效地为不断增加的非推进负荷供电。为了以边际成本提供有意义的燃油经济性改善，同时满足日益增长的非推进电力需求，采用48V系统的新型微型混合动力电动汽车将在不久的将来出现。这项提案侧重于48V微型混合动力车的核心，即集成动力组件单元(PPU)。该组件包含锂电池存储，为48V微型混合动力汽车的节油内燃机启动/停止功能以及有限的混合动力操作提供动力。集成PPU的第二个作用是提供稳定的12V电源网络，为传统的低压车辆负载提供能量。这一功能是通过用更可靠和更可控的电力电子设备取代车用交流发电机来实现的。拟议的项目将设计、制造、测试和优化控制集成了电机和电力电子设备的PPU原型。它将包含与电力电子、热管理、包装和电池管理系统相关的竞争技术。将为大学研究型学生和行业合作伙伴创造重要的知识和实践经验。该项目的成果将使电动汽车技术大大受益，从而带来经济的汽车制造和更可持续的交通系统。

Conventional internal combustion engine (ICE) based vehicles suffer from high emissions and high fuel consumption. Automobile customer demand for greater fuel-economy, functionality, connectivity, and convenience has increased electrification of the vehicle in both propulsion and accessory loads. Although fuel-efficient options such as hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and all electric vehicles (EV) are available in the marketplace, their noticeably higher upfront costs related to the high-voltage (300V or more) electrified propulsion and large battery storage have affected their mass adoption. Moreover, the conventional low voltage 12V power network is reaching its limits to power the ever-increasing non-propulsion loads efficiently. To provide meaningful fuel economy improvements with marginal costs and, at the same time, cater to the increased non-propulsion electrical demands, a new class of micro-hybrid electric vehicles utilizing a 48V system is set to emerge in the near future. This proposal focuses on the heart of the 48V micro-hybrid, its integrated power pack unit (PPU). This component contains lithium battery storage to power the fuel saving ICE start/stop functionality of the 48V micro-hybrid electric vehicle as well as limited hybrid operation. The second role of the integrated PPU is to provide a stable 12V power network to energize the conventional low-voltage vehicle loads. This function is achieved by replacing the vehicle alternator with more reliable and controllable power electronics. The proposed project will design, build, test, and optimally control a prototype integrated PPU with an electric machine and power electronics. It will contain competitive technologies related to power electronics, thermal management, packaging, and battery management systems. Significant knowledge and hands-on experience will be created for both university research students and industry partners. The project outcomes will significantly benefit electrified vehicle technology leading to economical automotive manufacturing and a more sustainable transportation system.