关于湿式双离合变速器多档降档超温研究与优化  

Research and Optimization on Multi-Downshift Overheat of DCT

作　　者：熊雨师 Xiong Yushi

机构地区：[1]麦格纳动力总成(江西)有限公司,江西省南昌市330013

出　　处：《时代汽车》2023年第18期155-157,共3页Auto Time

摘　　要：湿式双离合变速器的离合器全部浸泡在变速器油液中,相比于干式双离合变速器可以更好的降低离合器的工作温度,延长离合器的使用寿命。但是对于瞬间高温工况,离合器片依然有超温的风险。文章主要对湿式双离合变速器汽车多档位动力降档过程中出现的离合器超温问题进行分析与研究,通过缩短换档时间、降低换档速差和降低换档过程中的发动机扭矩来减少摩擦功,从而避免离合器超温的风险。The clutch of the wet dual-clutch gearbox is fully immersed in the transmission oil,which can better reduce the operating temperature of the clutch and extend the service life of the clutch compared to the dry dual-clutch gearbox.However,for instantaneous high temperature conditions,the clutch plate still has the risk of overheating.This article mainly analyzes and studies the clutch overtemperature problem that occurs during the multi-shift power downshift of wet dual-clutch transmission vehicles,and reduces the friction work in the shifting process by reducing the shift speed slip and reducing part of the engine torque to avoid the risk of clutch overtemperature.

关 键 词：汽车 双离合变速器 多档位降档 离合器片超温 

分 类 号：U46[机械工程—车辆工程]