MRI-R2: Development of a Precise and High Speed Hydrostatic Dynamometer System for Research and Education in Automotive Propulsion Systems

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。这项主要研究仪器（MRI-R2）的目标是开发一种最先进、精确和高度灵活的仪器，用于测试和测量汽车推进系统的燃油效率、排放和性能。该仪器的核心部件是一个精密的高速静压测力计，它吸收（或提供）来自（或到）发动机/动力总成的扭矩，以便发动机或动力总成可以遵循任何所需的转速和加速度剖面。静压测功机与发动机控制系统和硬件在环车辆传动系统模拟器配合，用于模拟传动系、车辆负载和替代动力源。该仪器将允许在实际驾驶场景中测试或模拟车辆推进系统的各个方面，如发动机、变速器、混合动力源、储能系统、排放控制系统和传动系统，而无需实际构建完整的物理系统。作为一个共享的研究基础设施，该仪器将鼓励明尼苏达大学多个部门的用户进行互动和研究合作。此外，它还将帮助下一代仪器学家、研究人员和工程师设计和制造清洁高效的汽车推进系统。所开发的仪器也将被整合到本科和研究生教育的核心机械工程课程中。它还将加强与工业伙伴的合作，并帮助向广大社区传播研究成果。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The objective of this Major Research Instrumentation (MRI-R2) award is to develop a state-of-the-art, precise and highly flexible instrument for testing and measuring the fuel efficiency, emissions and performance of automotive propulsion systems. The centerpiece of the instrument is a precise and high-speed hydrostatic dynamometer, which absorbs (or provides) torques from (or to) the engine/powertrain so that the engine or powertrain can follow any desired rotational speed and acceleration profile. The hydrostatic dynamometer is utilized to experimentally mimic the drive train, vehicle load, and the alternative power sources in coordination with an engine control system and a hardware-in-the-loop vehicle driveline emulator. This instrument will allow all aspects of the vehicle propulsion system such as the engine, transmission, hybrid power sources, energy storage systems, emission control systems and driveline system to be tested or simulated in a real-world driving scenario without actually building the complete physical system.As a shared research infrastructure, the instrument will encourage the interaction and research collaboration of users from multiple departments at the University of Minnesota. Furthermore, it will help to prepare the next generation instrumentalists, researchers and engineers to design and build clean and efficient automotive propulsion systems. The developed instrument will also be integrated into core mechanical engineering curriculum for both undergraduate and graduate education. It will also enhance collaborations with industrial partners and help to disseminate research results to communities at large.