Due to environmental pollution concerns, emission regulations on internal combustion engines (ICEs) have been tightening and the importance of fuel efficiency has become pronounced. Thereupon, downsizing, downspeeding, turbo supercharging, and cylinder deactivation techniques have been implemented in designing modern ICEs. Despite their considerable benefits, these methods result in boosted torsional oscillations necessitating new vibration isolation technologies due to the limited performance of passive torsional vibration dampers. In addition, trade-offs are indispensable in the passive damper system designs since different engine operating points demand different values of oscillation attenuation parameters. Thus, this study was initiated to develop a novel active torsional vibration damper (ATVD) to attenuate the torsional vibrations of all engine operating points without making any trade-off and to open up a new comfort zone for the development of modern ICEs. Proposed ATVD is essentially a parametrically excited system that adjusts the stiffness rate, damping rate, and moment of inertia in accordance with a fuzzy logic control (FLC) law to maximize engine-borne torsional vibration attenuation capability. The ATVD performance is evaluated in a co-simulation environment by using a driving cycle with six engine operating points and its advantages over conventional passive dampers are demonstrated.

由于对环境污染的担忧，内燃机 (ICE) 的排放法规一直在收紧，燃料效率的重要性变得明显。因此，在设计现代 ICE 时，已经实施了小型化、减速、涡轮增压和汽缸停用技术。尽管它们具有相当大的好处，但由于被动扭转减振器的性能有限，这些方法会导致扭转振荡增强，因此需要新的隔振技术。此外，在被动阻尼器系统设计中，权衡是必不可少的，因为不同的发动机工作点需要不同的振荡衰减参数值。因此，本研究旨在开发一种新型主动扭转减振器 (ATVD)，以在不做任何权衡的情况下衰减所有发动机工作点的扭转振动，并为现代 ICE 的发展开辟新的舒适区。提议的 ATVD 本质上是一个参数激励系统，它根据模糊逻辑控制 (FLC) 定律调整刚度率、阻尼率和转动惯量，以最大限度地提高发动机的扭转振动衰减能力。ATVD 性能通过使用具有六个发动机工作点的驾驶循环在联合仿真环境中进行评估，并展示了其优于传统被动阻尼器的优势。提议的 ATVD 本质上是一个参数激励系统，它根据模糊逻辑控制 (FLC) 定律调整刚度率、阻尼率和转动惯量，以最大限度地提高发动机的扭转振动衰减能力。ATVD 性能通过使用具有六个发动机工作点的驾驶循环在联合仿真环境中进行评估，并展示了其优于传统被动阻尼器的优势。提议的 ATVD 本质上是一个参数激励系统，它根据模糊逻辑控制 (FLC) 定律调整刚度率、阻尼率和转动惯量，以最大限度地提高发动机的扭转振动衰减能力。ATVD 性能通过使用具有六个发动机工作点的驾驶循环在联合仿真环境中进行评估，并展示了其优于传统被动阻尼器的优势。