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公开(公告)号：US11118639B1
公开(公告)日：2021-09-14
申请号：US16996390
申请日：2020-08-18
发明人： Sung Hyun Cho , Dong Hyup Kang
IPC分类号： F16D48/06
摘要： A clutch control method for a vehicle may include determining, by a controller, whether a tip-in has occurred during an in-gear state of a transmission; increasing the clutch slip rapidly to a first target slip by the controller; feedback-controlling, by the controller, so that the clutch slip is reduced toward a second target slip during a predetermined first control time period after the increasing of the clutch slip; controlling, by the controller, a clutch of the transmission with a first target slip angular acceleration after the predetermined first control time period has elapsed; feedback-controlling by the controller so that target slip angular acceleration of the clutch gradually becomes zero during a predetermined second control time period; and feedback-controlling by the controller so that the clutch slip becomes a third target slip after the predetermined second control time period has elapsed.
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公开(公告)号：US10556594B2
公开(公告)日：2020-02-11
申请号：US16030613
申请日：2018-07-09
发明人： Jin Sung Kim , Dong Hyup Kang
IPC分类号： B60W30/188 , B60W10/06 , B60W10/02
摘要： An acceleration control method for a dual clutch transmission (DCT) vehicle, may include determining whether an engine speed is lower than a desired shift stage input shaft speed by a controller when a driver's demand for acceleration is verified, determining whether an engine speed increased by the demand for acceleration is equal to or greater than the desired shift stage input shaft speed by the controller, feedback-controlling an engagement-side clutch to reduce a slip caused by a difference between the engine speed and the desired shift stage input shaft speed while maintaining an engine torque by the controller when the engine speed is verified to be equal to or greater than the desired shift stage input shaft speed, and completing control by verifying whether synchronization of the engine speed with the desired shift stage input shaft speed is stabilized.
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公开(公告)号：US10858003B2
公开(公告)日：2020-12-08
申请号：US16592481
申请日：2019-10-03
发明人： Sueng Ho Lee , Woochurl Son , Dong Hee Han , Yong Woo Shin , Jin San Kim , Chong Tae Yang , Choung Wan Son , Young Chan Gweon , Kijong Park , Young Chul Jeong , Dong Hyup Kang , Jihun Lee , Yeongseop Park , Cheol Ho Jang , Jihwan Byun , Wootae Kim , Jung Woo Kim , Han Ki Hong , Ki Been Lim , Changgi Yeo , Hwangbok Lee , Hwan Hur , Woo Jin Chang , Nag Geun Song , Bo Hee Lee
摘要： A vehicle transmission system may include an engine outputting power from fuel combustion, a transmission coupled to the engine and including at least one clutch to control torque input from the engine, an supercharger compressing an intake air and supplying the compressed intake air to the engine, and a control unit, where, when a predetermined acceleration condition is satisfied, the control unit is configured to operate the supercharger and to control the transmission according to a transmission clutch stroke operation map corresponding to the operation of the electric supercharger, to vary an engagement speed of the clutch when the supercharger is operated.
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公开(公告)号：US10508736B2
公开(公告)日：2019-12-17
申请号：US15984978
申请日：2018-05-21
发明人： Sung Hyun Cho , Dong Hyup Kang
IPC分类号： F16H61/688 , F16H59/18 , F16H59/48
摘要： An upshift control method for a dual clutch transmission (DCT) for a vehicle includes: determining, by a controller, whether or not an inertia phase begins when a driver accelerator pedal depression amount increases during power-on upshifting; calculating, by the controller, a first control amount, which is a first final clutch torque for controlling an engaging clutch, when the inner phase begins, in consideration of a difference between a current accelerator pedal depression amount and an accelerator pedal depression amount at beginning of the inertia phase, a difference between the current accelerator pedal depression amount and a maximum value of an accelerator pedal depression amount during the inertia phase elapsed until a present time, and a target engine torque, and controlling, by the controller, the engaging clutch with the final clutch torque calculated in the calculating.
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公开(公告)号：US20200353927A1
公开(公告)日：2020-11-12
申请号：US16592481
申请日：2019-10-03
发明人： Sueng Ho LEE , Woochurl Son , Dong Hee Han , Yong Woo Shin , Jin San Kim , Chong Tae Yang , Choung Wan Son , Young Chan Gweon , Kijong Park , Young Chul Jeong , Dong Hyup Kang , Jihun Lee , Yeongseop Park , Cheol Ho Jang , Jihwan Byun , Wootae Kim , Jung Woo Kim , Han Ki Hong , Ki Been Lim , Changgi Yeo , Hwangbok Lee , Hwan Hur , Woo Jin Chang , Nag Geun Song , Bo Hee Lee
摘要： A vehicle transmission system may include an engine outputting power from fuel combustion, a transmission coupled to the engine and including at least one clutch to control torque input from the engine, an supercharger compressing an intake air and supplying the compressed intake air to the engine, and a control unit, where, when a predetermined acceleration condition is satisfied, the control unit is configured to operate the supercharger and to control the transmission according to a transmission clutch stroke operation map corresponding to the operation of the electric supercharger, to vary an engagement speed of the clutch when the supercharger is operated.
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公开(公告)号：US10316905B2
公开(公告)日：2019-06-11
申请号：US15826014
申请日：2017-11-29
发明人： Jin Sung Kim , Dong Hyup Kang
IPC分类号： F16D48/08
摘要： The present disclosure relates to a technique of suppressing the occurrence of an impact caused by clutch engagement by differently controlling a clutch depending on whether or not a brake is in operation. Disclosed is a method of controlling a clutch for a vehicle, which effectively reduces engagement impact that occurs when the clutch is engaged by performing control such that a rising slope of clutch torque up to a touch point is gentler when the brake is not in operation than when the brake is in operation.
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