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Design and Modeling of Energy Efficient Dual Clutch Transmission with Ball-Ramp Self-Energizing Mechanism
IEEE Transactions on Vehicular Technology ( IF 6.8 ) Pub Date : 2020-03-01 , DOI: 10.1109/tvt.2019.2963332
Dong-Hyun Kim , Jin-Wook Kim , Seibum B. Choi

Dual clutch transmission (DCT) which can simultaneously improve acceleration performance and fuel efficiency compared to automatic transmissions (AT) and manual transmissions (MT) is one of the most noted studies in recent powertrain applications. However, much of energy consumption of clutch actuator reduces fuel efficiency of DCT-equipped vehicles. In order to reduce energy consumption of these actuators, a method of modifying mechanism and a method of improving it through control have been studied. However, the results of each study still use more energy or make the actuator less controllable. Thus, in this manuscript, we propose a ball-ramp DCT (BR-DCT) with a clutch actuator that changes mechanism to reduce power consumed by engagement and improve controllability. DCT is designed using the proposed structure and design parameter constraint selection method, and energy efficiency improvement effect of BR-DCT is verified through simulation. We also demonstrate effect of BR-DCT prototype on actuator energy saving through test bench experiment. As a result, clutch actuator of BR-DCT uses 84% less energy than conventional DCT and can improve vehicle fuel efficiency by 0.5%. In addition, since it has same characteristics as conventional DCT, it verifies that it can fully utilize controller developed previously.

中文翻译:

带滚珠坡道自增力机构的节能双离合变速器设计与建模

与自动变速器 (AT) 和手动变速器 (MT) 相比,双离合变速器 (DCT) 可以同时提高加速性能和燃油效率,是最近动力系统应用中最著名的研究之一。然而,离合器执行器的大部分能量消耗降低了配备 DCT 的车辆的燃油效率。为了降低这些执行器的能耗,已经研究了一种修改机构的方法和一种通过控制来改进它的方法。然而,每项研究的结果仍然使用更多的能量或使执行器的可控性降低。因此,在本手稿中,我们提出了一种带有离合器执行器的滚珠坡道 DCT(BR-DCT),该执行器改变机制以减少接合所消耗的功率并提高可控性。采用提出的结构和设计参数约束选择方法设计了DCT,并通过仿真验证了BR-DCT的能效提升效果。我们还通过试验台实验证明了 BR-DCT 原型对执行器节能的影响。因此,BR-DCT的离合器执行器比传统的DCT节能84%,可将车辆燃油效率提高0.5%。此外,由于它具有与传统 DCT 相同的特性,因此验证了它可以充分利用以前开发的控制器。BR-DCT离合器执行器比传统DCT节能84%,可提高车辆燃油效率0.5%。此外,由于它具有与传统 DCT 相同的特性,因此验证了它可以充分利用以前开发的控制器。BR-DCT离合器执行器比传统DCT节能84%,可提高车辆燃油效率0.5%。此外,由于它具有与传统 DCT 相同的特性,因此验证了它可以充分利用以前开发的控制器。
更新日期:2020-03-01
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