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公开(公告)号：US20200325985A1
公开(公告)日：2020-10-15
申请号：US16539147
申请日：2019-08-13
发明人： Young Ho KO , Hwa Young LEE , Young Min YOON , Jin Sung KIM
IPC分类号： F16H61/00 , B60W10/113
摘要： A line pressure control method for a dual-clutch transmission (DCT), may include a hydraulic-pressure-decreasing operation of interrupting, by a controller, the supply of current to an electric oil pump and estimating a decrease in a line pressure using a line pressure model based on a pressure accumulator mounted in a hydraulic pressure line, a pump-driving operation of, when the estimated line pressure is equal to or less than a predetermined lower-limit value, driving, by the controller, the electric oil pump, and a hydraulic-pressure-increasing operation of determining, by the controller, the line pressure based on the current supplied to the electric oil pump and to determine whether the determined line pressure is equal to or greater than a predetermined upper-limit value.
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公开(公告)号：US20190202461A1
公开(公告)日：2019-07-04
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：US20180172091A1
公开(公告)日：2018-06-21
申请号：US15644096
申请日：2017-07-07
申请人： HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
发明人： Jin Sung KIM , Ho Young LEE , Jahng Hyon PARK , Young Ho KO
IPC分类号： F16D48/06
CPC分类号： F16D48/06 , F16D2500/102 , F16D2500/10412 , F16D2500/3023 , F16D2500/3024 , F16D2500/3026 , F16D2500/30401 , F16D2500/30412 , F16D2500/30421 , F16D2500/30425 , F16D2500/50236 , F16D2500/525 , F16D2500/70264 , F16D2500/7041 , F16D2500/70426 , F16D2500/7082
摘要： A clutch control method for a vehicle includes steps of: calculating, by a controller, an estimated clutch torque by substituting a plurality of parameters, and a sensed stroke of a clutch actuator into a predetermined characteristic function; updating, by the controller, the parameters as new values by a prediction error method using a torque error, which is a difference between a reference clutch torque and the estimated clutch torque; calculating a desired stroke by substituting a desired clutch torque and the updated parameters into a predetermined characteristic inverse function; and driving the clutch actuator based on the calculated desired stroke to control the clutch by the controller. The plurality parameters represent physical properties of a clutch, and the predetermined characteristic function represents characteristics of a clutch transmission torque to a clutch actuator stroke. In addition, the predetermined characteristic inverse function represents a clutch actuator stroke to a clutch transmission torque.
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公开(公告)号：US20200309206A1
公开(公告)日：2020-10-01
申请号：US16533062
申请日：2019-08-06
发明人： Jin Sung KIM
摘要： A clutch torque estimating method for a transmission of a vehicle may include inputting model engine torque to a powertrain model by a controller; inputting target clutch torque of a first clutch and target clutch torque of a second clutch to the powertrain model by the controller; inputting shifting information related to the vehicle to the powertrain model by the controller; correcting the powertrain model in real time by feeding back an engine angular velocity error, a clutch angular velocity error of the first clutch, a clutch angular velocity error of the second clutch, a wheel angular velocity error to the powertrain model by the controller; and estimating clutch torque of the first clutch and clutch torque of the second clutch by determining the powertrain model by the controller.
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公开(公告)号：US20180320744A1
公开(公告)日：2018-11-08
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
CPC分类号： F16D48/08 , F16D2500/10412 , F16D2500/30806 , F16D2500/31426
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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公开(公告)号：US20200309255A1
公开(公告)日：2020-10-01
申请号：US16531439
申请日：2019-08-05
发明人： Jin Sung KIM , Young Ho KO , Young Min YOON
IPC分类号： F16H61/00
摘要： A method of controlling line pressure of a hydraulic circuit of a transmission, may include turning on electric current by a controller to apply the electric current to an electric oil pump and determining line pressure depending on the electric current applied; and turning off the electric current by the controller so that the electric current being applied to the electric oil pump is cut off when the determined line pressure is greater than a predetermined reference upper limit value, estimating line pressure dropping down with a passage of time and determining the estimated line pressure, wherein when the estimated line pressure becomes lower than a predetermined reference lower limit value, the turning on the electric current is repeated.
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公开(公告)号：US20170370428A1
公开(公告)日：2017-12-28
申请号：US15334135
申请日：2016-10-25
发明人： Sung Hyun CHO , Hwan HUR , Jin Sung KIM
IPC分类号： F16D48/06
CPC分类号： F16D48/06 , F16D2500/10412 , F16D2500/304 , F16D2500/30412 , F16D2500/30421 , F16D2500/3056 , F16D2500/306 , F16D2500/3064 , F16D2500/3065 , F16D2500/3067 , F16D2500/3068 , F16D2500/30807 , F16D2500/5045 , F16D2500/70408 , F16D2500/7044 , Y02T10/76
摘要： A method of controlling a clutch for vehicle may include determining, by a controller, raised offset engine torque, when engine torque is raised to a reference torque or more in an engine idle state, and controlling, by the controller, the clutch based on the determined offset engine torque.
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8.发明申请METHOD AND SYSTEM FOR PREVENTING OVERHEATING OF CLUTCH BY MEANS OF FORCIBLE CREEPING 审中-公开用于通过强制冲击手段防止离合器过热的方法和系统公开(公告)号：US20160082967A1
公开(公告)日：2016-03-24
申请号：US14561079
申请日：2014-12-04
发明人： Jeong Heon KAM , Jin Sung KIM , Hyun Chul KIM
IPC分类号： B60W30/18
CPC分类号： B60W30/18063 , B60W10/02 , B60W10/06 , B60W30/18118 , B60W30/1843 , B60W30/186 , B60W50/14 , B60W2050/143 , B60W2520/10 , B60W2540/10 , B60W2540/12 , B60W2550/142 , B60W2710/027 , B60W2710/0666
摘要： Disclosed are methods and systems for preventing overheating of a clutch by means of forcible creeping. A method may include determining whether a vehicle is in a hill-hold mode, comparing an inclination of a slope where the vehicle is with a predetermined reference inclination, and leading a driver to depress a brake pedal by starting an uphill creeping mode, when the inclination of the slope is within a range where the vehicle is maintained in the hill-hold mode.
摘要翻译： 公开了通过强制蠕变来防止离合器过热的方法和系统。 方法可以包括确定车辆是否处于坡道保持模式，将车辆的斜率与预定的参考倾斜度进行比较，并且通过开始上坡爬行模式来引导驾驶员踩下制动踏板，当 倾斜度在车辆保持在坡道保持模式的范围内。
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公开(公告)号：US20170108063A1
公开(公告)日：2017-04-20
申请号：US15046222
申请日：2016-02-17
发明人： Jin Sung KIM , Ju Hyun NAM
IPC分类号： F16D48/08
CPC分类号： F16D48/08 , F16D48/06 , F16D2500/10412 , F16D2500/106 , F16D2500/30406 , F16D2500/3067 , F16D2500/502 , F16D2500/5106 , F16D2500/7041 , F16D2500/7044 , F16D2500/70454 , F16D2500/70626
摘要： A method for controlling a clutch includes judging whether or not a slip amount of the clutch is reduced to below a first reference value by a controller after starting of the vehicle is launched, judging whether or not accumulated slip energy of the clutch until a present time from the launch of starting the vehicle is a second reference value or more, as a result of judgment as to the slip amount of the clutch, if the slip amount of the clutch is below the first reference value, and controlling engagement of the clutch so as to prevent overheating of the clutch while the controller causes an engine to maintain a target engine speed, as a result of the judgment as to the accumulated slip energy, if the accumulated slip energy is the second reference value or more.
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公开(公告)号：US20170335903A1
公开(公告)日：2017-11-23
申请号：US15331255
申请日：2016-10-21
发明人： Jin Sung KIM , Ju Hyun NAM
IPC分类号： F16D48/06
CPC分类号： F16D48/06 , B60W10/02 , B60W2030/203 , F16D2500/10412 , F16D2500/304 , F16D2500/50287 , F16D2500/70252 , Y10T477/75 , Y10T477/78
摘要： The present disclosure provides a clutch control method, including: a variation setting step of setting, by a controller, a current torque variation depending on a difference between a just previous clutch control torque and a clutch target torque; a limit determining step of determining whether a jerk of a clutch control torque need not be limited when the clutch control torque is reduced and then is increased or when the clutch control torque is continuously reduced by using the current torque variation and a just previous torque variation; a direction setting step and a limit setting step to determine a final torque variation based on the outcome of the limit determining step; and a control torque calculating step of calculating the clutch control torque to control a clutch.
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