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公开(公告)号:US09341260B2
公开(公告)日:2016-05-17
申请号:US14562021
申请日:2014-12-05
发明人: Sung Hyun Cho , Ho Sung Kim , Sang Mo Ha
IPC分类号: B60W10/02 , B60W10/06 , B60W10/113 , F16H61/10 , B60W10/10
CPC分类号: F16H61/10 , B60W10/02 , B60W10/06 , B60W10/10 , B60W30/186 , B60W2510/06 , B60W2710/021 , B60W2710/0666 , B60W2710/10 , F16H61/688 , F16H63/502 , F16H2063/508
摘要: A shift control method for a dual clutch transmission (DCT) vehicle may include, performed by a controller of the DCT, an actual shift determining step, a cooperation control termination determining step, a flare determining step, an engine torque reducing step, a torque adding step, an engine torque raising step, and a shift finishing step of reducing an amount of reduction of the engine torque until synchronization is completed in proportion to a synchronization prediction time in which it takes an engine speed to reach a synchronization speed when the synchronization prediction time is smaller than a reference time during which the torque adding step and the engine torque raising step are performed, and having slip control over an engagement-side clutch.
摘要翻译: 用于双离合器变速器(DCT)车辆的换档控制方法可以包括由DCT的控制器执行的实际换档确定步骤,协作控制终止确定步骤,闪光确定步骤,发动机扭矩降低步骤,扭矩 发动机转矩提升步骤,以及变速完成步骤,将发动机转矩的减少量减少直到同步完成为止,与同步预测时间成比例,在该同步预测时间中,当同步时发动机转速达到同步速度时 预测时间小于执行转矩附加步骤和发动机转矩提升步骤的参考时间,并且在接合侧离合器上具有滑动控制。
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公开(公告)号:US20150166039A1
公开(公告)日:2015-06-18
申请号:US14500158
申请日:2014-09-29
发明人: Sung Hyun Cho , Ju Hyun NAM , Hwan HUR , Ho Sung KIM
CPC分类号: B60W10/11 , B60W10/06 , F16H61/0437 , F16H61/688 , F16H63/502 , F16H2306/24
摘要: A shift control method in a vehicle having a dual clutch transmission may include determining whether power-off downshifting is being carried out, monitoring whether a tip-in is caused by a driver during the power-off downshifting, releasing all of a transmission torque of a releasing clutch and a transmission torque of a coupling clutch if it is determined that the tip-in is caused during the power-off downshifting, decreasing an engine torque at a point of time when an engine speed becomes identical to a speed of a coupling input shaft on which a target gear is disposed, and synchronously increasing the engine torque by gradually increasing the transmission torque of the coupling clutch and gradually reducing an amount by which the engine torque is decreased when the releasing clutch has completed a releasing action and the engine speed becomes faster than the speed of the coupling input shaft.
摘要翻译: 具有双离合器变速器的车辆中的变速控制方法可以包括确定是否正在进行断电降档,监视在断电降档期间是否由驾驶员引起的吸入,释放所有的传动转矩 释放离合器和联轴器离合器的传动扭矩,如果确定在断电降档期间引起尖端,则在发动机转速变得与联轴器速度相同的时间点上减小发动机扭矩 其中设置有目标齿轮的输入轴,并且通过逐渐增加联轴器离合器的传递扭矩同步地增加发动机扭矩,并且当释放离合器完成释放动作时逐渐减小发动机扭矩减小的量,并且发动机 速度变得比联轴器输入轴的速度快。
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公开(公告)号:US08965651B2
公开(公告)日:2015-02-24
申请号:US13827059
申请日:2013-03-14
发明人: Young Min Yoon , Sung Hyun Cho
CPC分类号: F16H61/0403 , F16H59/20 , F16H61/688
摘要: A shift control method for a vehicle having a double clutch transmission may include determining whether or not a speed change may be between transmission gears which may be allocated to a same input shaft, determining whether or not a gear of the input shaft may be released, when the gear of the input shaft may be released, engaging working parts of a clutch of the input shaft with each other in a range before synchronization of a final target transmission gear starts.
摘要翻译: 具有双离合器变速器的车辆的变速控制方法可以包括:判定变速齿轮是否可以分配给同一输入轴的变速齿轮之间,确定输入轴的齿轮是否可以被释放; 当输入轴的齿轮可以被释放时,输入轴的离合器的接合工作部分在最终目标传动装置的同步之前的范围内彼此接合。
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84.
公开(公告)号:US08897980B2
公开(公告)日:2014-11-25
申请号:US13794178
申请日:2013-03-11
发明人: Young Min Yoon , Seung Sam Baek , Sung Hyun Cho , Ho Young Lee , Joung Chul Kim
CPC分类号: F16D48/06 , B60W10/02 , F16D43/00 , F16D43/02 , F16D43/26 , F16D2500/102 , F16D2500/10412 , F16D2500/1045 , F16D2500/1083 , F16D2500/1085 , F16D2500/3026 , F16D2500/30406 , F16D2500/3065 , F16D2500/70408 , F16H61/0437 , Y10T477/73 , Y10T477/735 , Y10T477/743 , Y10T477/747 , Y10T477/79
摘要: A method of estimating transmission torque of a dry clutch, may include a) slowly releasing a dry clutch until a slip of the dry clutch occurs, b) acquiring and storing stroke of an actuator and torque of an engine at a starting time point at which the slip of the dry clutch occurs at step a), and c) determining the stroke of the actuator and the transmission torque of the dry clutch at the starting time point at which the slip of the dry clutch occurs, by using the stroke of the actuator and the torque of the engine stored at step b).
摘要翻译: 一种估计干式离合器的传动扭矩的方法可以包括:a)缓慢地释放干式离合器,直到发生干式离合器的滑动,b)获取和存储致动器的行程和发动机的扭矩,起动时间点 干燥离合器的滑移在步骤a)中发生,并且c)通过使用干式离合器的冲程在干燥离合器的滑移的起始时间点确定致动器的行程和干式离合器的传动扭矩 致动器和在步骤b)存储的发动机的扭矩。
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