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公开(公告)号：US12007018B2
公开(公告)日：2024-06-11
申请号：US17744193
申请日：2022-05-13
发明人： Jin Young Hwang , Bong Uk Bae , Ki Bum Kim , Se Hwan Jo , Seong Min Son
IPC分类号： F16H61/00 , F16H59/42 , F16H59/44 , F16H59/48 , F16H59/50 , F16H59/72 , F16H61/02 , F16H59/14
CPC分类号： F16H61/0021 , F16H59/42 , F16H59/44 , F16H59/48 , F16H59/50 , F16H59/72 , F16H61/0025 , F16H61/0265 , F16H61/0274 , F16H61/0276 , F16H2059/147 , F16H2061/0096
摘要： A hydraulic pressure control method for a vehicle transmission includes accumulating factors representing vehicle usage, accumulating factors representing driver's driving tendency, calculating a first line pressure compensation value according to the usage depending on the accumulated values of the factors representing the vehicle usage, calculating a second line pressure compensation value according to the driver's driving tendency depending on the accumulated values of the factors representing the driver's driving tendency, determining a final line pressure by adding the first and second line pressure compensation values according to the usage and the driver's driving tendency to a basic line pressure, and operating a transmission hydraulic system according to the final line pressure.
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公开(公告)号：US20230051429A1
公开(公告)日：2023-02-16
申请号：US17730762
申请日：2022-04-27
发明人： Bong Uk Bae , Se Hwan Jo , Ki Bum Kim , Jin Young Hwang , Seong Min Son
摘要： A method of controlling an electric oil pump (EOP) for a vehicle includes, if a current temperature of oil is lower than a reference temperature, determining whether an EOP RPM is lower than a minimum driving RPM, if the EOP RPM is lower than the minimum driving RPM, applying a first reduction rate for a first setting time and reducing a target line pressure and an instruction RPM of the EOP, if the EOP RPM is equal to or higher than the minimum driving RPM, determining whether vibration of the EOP RPM is generated above a reference vibration, and if the vibration is generated above the reference vibration, applying a second reduction rate for a second setting time and reducing the target line pressure or the instruction RPM of the EOP.
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公开(公告)号：US11614162B2
公开(公告)日：2023-03-28
申请号：US17734537
申请日：2022-05-02
发明人： Bong Uk Bae , Se Hwan Jo , Seong Min Son , Ki Bum Kim , Jin Young Hwang , Kyung Moo Lee
摘要： A method of controlling an electric oil pump (EOP) of a vehicle includes: confirming a gear shift type when a gear shift of a vehicle is started; compensating for the number of revolutions of the EOP according to the confirmed gear shift type; confirming whether a measured line pressure converges on a command line pressure while the compensating for the number of revolutions of the EOP according to the gear shift type is performed; and, when it is determined that the measured line pressure does not converge on the command line pressure, additionally compensating for the number of revolutions of the EOP.
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公开(公告)号：US11946541B2
公开(公告)日：2024-04-02
申请号：US17408299
申请日：2021-08-20
发明人： Sung Sik Choi , Kyung Moo Lee , Seong Min Son , Ki Bum Kim , Se Hwan Jo , Bong Uk Bae
IPC分类号： F16H57/04
CPC分类号： F16H57/0436 , F16H57/0443
摘要： A method of controlling an EOP of a powertrain may include determining, by a controller electrically connected to the EOP, whether an oil sloshing phenomenon in which it is difficult for oil to return to a space where an oil intake port of the EOP is positioned may occur while a vehicle is running; and reducing, by the controller, the revolutions per minute (RPM) of the EOP by a predetermined reduced RPM when it is determined that the oil sloshing phenomenon may occur.
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公开(公告)号：US20230053741A1
公开(公告)日：2023-02-23
申请号：US17744193
申请日：2022-05-13
发明人： Jin Young Hwang , Bong Uk Bae , Ki Bum Kim , Se Hwan Jo , Seong Min Son
摘要： A hydraulic pressure control method for a vehicle transmission includes accumulating factors representing vehicle usage, accumulating factors representing driver's driving tendency, calculating a first line pressure compensation value according to the usage depending on the accumulated values of the factors representing the vehicle usage, calculating a second line pressure compensation value according to the driver's driving tendency depending on the accumulated values of the factors representing the driver's driving tendency, determining a final line pressure by adding the first and second line pressure compensation values according to the usage and the driver's driving tendency to a basic line pressure, and operating a transmission hydraulic system according to the final line pressure.
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公开(公告)号：US20230003297A1
公开(公告)日：2023-01-05
申请号：US17734537
申请日：2022-05-02
发明人： Bong Uk Bae , Se Hwan Jo , Seong Min Son , Ki Bum Kim , Jin Young Hwang , Kyung Moo Lee
摘要： A method of controlling an electric oil pump (EOP) of a vehicle includes: confirming a gear shift type when a gear shift of a vehicle is started; compensating for the number of revolutions of the EOP according to the confirmed gear shift type; confirming whether a measured line pressure converges on a command line pressure while the compensating for the number of revolutions of the EOP according to the gear shift type is performed; and, when it is determined that the measured line pressure does not converge on the command line pressure, additionally compensating for the number of revolutions of the EOP.
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公开(公告)号：US20220268353A1
公开(公告)日：2022-08-25
申请号：US17408299
申请日：2021-08-20
发明人： Sung Sik Choi , Kyung Moo Lee , Seong Min Son , Ki Bum Kim , Se Hwan Jo , Bong Uk Bae
IPC分类号： F16H57/04
摘要： A method of controlling an EOP of a powertrain may include determining, by a controller electrically connected to the EOP, whether an oil sloshing phenomenon in which it is difficult for oil to return to a space where an oil intake port of the EOP is positioned may occur while a vehicle is running; and reducing, by the controller, the revolutions per minute (RPM) of the EOP by a predetermined reduced RPM when it is determined that the oil sloshing phenomenon may occur.
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公开(公告)号：US11643952B2
公开(公告)日：2023-05-09
申请号：US17730762
申请日：2022-04-27
发明人： Bong Uk Bae , Se Hwan Jo , Ki Bum Kim , Jin Young Hwang , Seong Min Son
CPC分类号： F01M1/16 , F01M1/02 , F01M1/20 , F01M2001/0215 , F01M2250/60
摘要： A method of controlling an electric oil pump (EOP) for a vehicle includes, if a current temperature of oil is lower than a reference temperature, determining whether an EOP RPM is lower than a minimum driving RPM, if the EOP RPM is lower than the minimum driving RPM, applying a first reduction rate for a first setting time and reducing a target line pressure and an instruction RPM of the EOP, if the EOP RPM is equal to or higher than the minimum driving RPM, determining whether vibration of the EOP RPM is generated above a reference vibration, and if the vibration is generated above the reference vibration, applying a second reduction rate for a second setting time and reducing the target line pressure or the instruction RPM of the EOP.
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公开(公告)号：US11168785B1
公开(公告)日：2021-11-09
申请号：US17038726
申请日：2020-09-30
发明人： Bong Uk Bae , Sung Sik Choi , Kyung Moo Lee , Ki Bum Kim , Seong Min Son , Seul Chan Park , Se Hwan Jo , Min Jae Chai
摘要： A hydraulic pressure control method for a transmission includes determining whether a current shift range is among a plurality of shift ranges, setting a dither frequency of a pressure control solenoid valve of a hydraulic circuit for the transmission to a predetermined first frequency when the current shift range is a predetermined first range, and setting the dither frequency of the pressure control solenoid valve to a predetermined second frequency when the current shift range is a shift range other than the first range.
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10.发明申请SINTERED ALLOY FOR VALVE SEAT AND MANUFACTURING METHOD OF EXHAUST VALVE SEAT USING THE SAME 有权用于阀座的烧结合金和使用其的排气阀座的制造方法公开(公告)号：US20130259733A1
公开(公告)日：2013-10-03
申请号：US13718373
申请日：2012-12-18
发明人： Philgi Lee , Gyuhwan Kim , Jae Suk Park , Ki Bum Kim , Chang-Jin Shin
CPC分类号： F01L3/02 , B22F3/16 , B22F5/00 , B22F5/008 , B22F2003/248 , C22C33/0221 , C22C33/0285
摘要： A sintered alloy for a valve seat may be manufactured using a method including: mixing MnS with an alloy powder for a valve seat including C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities; making a first shape by forming the mixed materials; pre-sintering the first formed shape; making a secondary shape by re-pressing the first pre-sintered shape; main-sintering the secondary shape; and tempering the main-sintered secondary shape.
摘要翻译： 可以使用以下方法制造用于阀座的烧结合金，所述方法包括：将MnS与用于阀座的合金粉末混合，所述阀座包括0.8-1.2重量％的C，2.0-4.5重量％的Ni，3.0-5.0重量％的Cr， Mo为16.0-20.0重量％，Co为9.0-13.0重量％，V为0.05-0.15重量％，S为0.2-0.8重量％，Fe和另外的不可避免的杂质; 通过形成混合材料制成第一形状; 预先烧结形成的第一个形状; 通过重新压制第一预烧结形状制成二次形状; 主烧结二次形状; 并回火主烧结二次形状。
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