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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Experimental Validation of a Cogging-Torque-Assisted Valve Actuation System for Internal Combustion Engines
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Experimental Validation of a Cogging-Torque-Assisted Valve Actuation System for Internal Combustion Engines

机译：内燃机齿槽转矩辅助气门驱动系统的实验验证

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摘要

Electromechanical valve actuation (EVA) is an emerging technology that aims to optimize valve trains, allowing for significant improvements to engine performance, efficiency, and emissions. Recently, a simulation study introduced a novel cogging-torque-assisted motor-driven (CTAMD) valve actuation system. The actuator design emphasized a large output cogging torque that removed the need for conventional valve springs. The cogging torque developed by this actuator allows for highly efficient energy recovery that is superior to comparable systems that make use of mechanical springs. This paper experimentally validates the simulation study with a prototype actuator constructed using the specifications suggested in the previous simulation. The characterization procedure of the prototype is discussed and close agreement is found between the simulated and experimental motor parameters. Furthermore, this paper details a control system that minimizes Ohmic loss while providing fast transition times and low seating velocities. Finally, experimental results are displayed and compared to the simulated results as well as other EVA systems to validate the conjectured speed and efficiency of the CTAMD system.
机译：机电气门致动（EVA）是一项新兴技术，旨在优化气门机构，从而显着改善发动机性能，效率和排放。最近，一项仿真研究推出了一种新型的齿槽转矩辅助电动机驱动（CTAMD）阀门致动系统。执行器的设计强调了大的输出齿槽转矩，从而消除了对传统阀弹簧的需求。该执行器产生的齿槽转矩可实现高效的能量回收，优于使用机械弹簧的同类系统。本文通过使用先前仿真中建议的规格构建的原型执行器，通过实验验证了仿真研究。讨论了原型的表征过程，并在仿真和实验电机参数之间找到了密切的一致性。此外，本文详细介绍了一种控制系统，该系统可将欧姆损耗降至最低，同时提供快速的过渡时间和较低的座椅速度。最后，显示实验结果并将其与模拟结果以及其他EVA系统进行比较，以验证CTAMD系统的推测速度和效率。

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