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公开(公告)号：US11939890B2
公开(公告)日：2024-03-26
申请号：US17991884
申请日：2022-11-22
发明人： Hyeon Woo Kim , Back Sik Kim , Jinyoung Jung
CPC分类号： F01L1/047 , F01L1/053 , F01L1/344 , F01L1/3442 , F01L13/00 , F02D13/0207 , F02D41/22 , F01L2001/0473 , F01L2001/0476 , F01L2013/103 , F01L2013/111 , F01L2305/00 , F01L2820/032
摘要： A continuous variable valve duration apparatus includes: a camshaft, a front cam unit and a rear cam unit of which the phase relative to the camshaft can be varied, a front inner wheel and a rear inner wheel, a front guide bracket and a rear guide bracket, a front wheel housing and a rear wheel housing, a front control shaft, a rear control shaft, a phase controller selectively changing the relative phase of the front control shaft and the rear control shaft, a main driving unit for driving the rear control shaft, vibration sensors that measure the vibration of each cylinder corresponding to the front cam unit and the rear cam unit and output a corresponding signal, and a controller for controlling the operation of the main driving unit and the phase controller according to the output signals of the respective vibration sensors.
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公开(公告)号：US20230212964A1
公开(公告)日：2023-07-06
申请号：US17991884
申请日：2022-11-22
发明人： Hyeon Woo Kim , Back Sik Kim , Jinyoung Jung
CPC分类号： F01L13/00 , F01L1/053 , F02D13/0207 , F02D41/22 , F01L2013/111 , F01L2305/00
摘要： A continuous variable valve duration apparatus includes: a camshaft, a front cam unit and a rear cam unit of which the phase relative to the camshaft can be varied, a front inner wheel and a rear inner wheel, a front guide bracket and a rear guide bracket, a front wheel housing and a rear wheel housing, a front control shaft, a rear control shaft, a phase controller selectively changing the relative phase of the front control shaft and the rear control shaft, a main driving unit for driving the rear control shaft, vibration sensors that measure the vibration of each cylinder corresponding to the front cam unit and the rear cam unit and output a corresponding signal, and a controller for controlling the operation of the main driving unit and the phase controller according to the output signals of the respective vibration sensors.
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公开(公告)号：US20230203999A1
公开(公告)日：2023-06-29
申请号：US17868872
申请日：2022-07-20
发明人： Hyeon Woo Kim , Back Sik Kim , Jinyoung Jung
CPC分类号： F02D41/0007 , F02D13/0234 , F02D41/107 , F02D41/0005 , F02D2041/002 , F02D2200/602
摘要： An apparatus for controlling an engine includes: an engine with a cylinder; a throttle valve to adjust a flow rate of intake air supplied to the cylinder; a supercharger to supply supercharged air to the cylinder; an intake valve to supply intake air by selectively opening and closing the cylinder; a variable valve timing device to adjust opening and closing timings of the intake valve; a variable valve duration device to adjust an opening duration of the intake valve; and a controller to adjust the amount of air inside of the cylinder by fixing an intake valve opening (IVO) timing and adjusting an intake valve closing (IVC) timing through the variable valve timing device and the variable valve duration device from a time at which a demanded torque is input to a time at which the demanded torque is followed by the throttle valve or the supercharger.
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4.发明公开公开(公告)号：US20240102423A1
公开(公告)日：2024-03-28
申请号：US18228820
申请日：2023-08-01
发明人： Hyeon Woo Kim , Back Sik Kim , Jinyoung Jung
IPC分类号： F02D13/02
CPC分类号： F02D13/0215 , F02D2200/1002 , F02D2200/101
摘要： A control method of valve opening and closing for an engine of which an intake continuous variable valve duration (CVVD) apparatus and an intake continuous variable valve timing (CVVT) apparatus are provided on the intake side, and an exhaust continuous variable valve duration (CVVD) apparatus and an exhaust continuous variable valve timing (CVVT) apparatus are provided on the exhaust side. The control method includes: determining, by a controller, a driving region among a predetermined plurality of driving regions according to a speed and a torque of the engine; and controlling, by the controller, opening timing, closing timing, and opening duration of each of an intake valve and an exhaust valve according to the driving region of the engine. The intake valve closing (IVC) timing is before a bottom dead center (BDC) in all driving regions.
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公开(公告)号：US20240003274A1
公开(公告)日：2024-01-04
申请号：US17983748
申请日：2022-11-09
发明人： Kiyoung Kwon , Jinyoung Jung , You Sang Son , Back Sik Kim , Dongwon Jung
CPC分类号： F02D13/0207 , F01L1/047 , F01L1/12 , F01L2305/00
摘要： A continuous variable valve duration apparatus includes a camshaft, a cam unit on which a cam is formed and the camshaft is inserted, a guide bracket of which an upper guide boss is formed, an inner wheel transmitting the rotation of the camshaft to the cam unit, a wheel housing of which a guide shaft having a guide thread formed thereto to be movably inserted into the upper guide boss is formed thereto, and of which a tail guide guiding the relative movement of the guide bracket is formed thereto, and the wheel housing into which the inner wheel is rotatably inserted, a worm wheel of which an inner thread engaged with the guide thread is formed on inside thereof and of which an outer thread is formed on outside thereof, and a tolerance adjusting pin inserted into the tolerance adjusting portion.
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公开(公告)号：US11852046B1
公开(公告)日：2023-12-26
申请号：US17983748
申请日：2022-11-09
发明人： Kiyoung Kwon , Jinyoung Jung , You Sang Son , Back Sik Kim , Dongwon Jung
CPC分类号： F01L1/047 , F01L1/12 , F02D13/0207 , F01L2001/0473 , F01L2305/00
摘要： A continuous variable valve duration apparatus includes a camshaft, a cam unit on which a cam is formed and the camshaft is inserted, a guide bracket of which an upper guide boss is formed, an inner wheel transmitting the rotation of the camshaft to the cam unit, a wheel housing of which a guide shaft having a guide thread formed thereto to be movably inserted into the upper guide boss is formed thereto, and of which a tail guide guiding the relative movement of the guide bracket is formed thereto, and the wheel housing into which the inner wheel is rotatably inserted, a worm wheel of which an inner thread engaged with the guide thread is formed on inside thereof and of which an outer thread is formed on outside thereof, and a tolerance adjusting pin inserted into the tolerance adjusting portion.
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公开(公告)号：US11795883B2
公开(公告)日：2023-10-24
申请号：US17868872
申请日：2022-07-20
发明人： Hyeon Woo Kim , Back Sik Kim , Jinyoung Jung
CPC分类号： F02D41/0007 , F02D13/0234 , F02D41/0005 , F02D41/10 , F02D41/107 , F02D2041/002 , F02D2200/602
摘要： An apparatus for controlling an engine includes: an engine with a cylinder; a throttle valve to adjust a flow rate of intake air supplied to the cylinder; a supercharger to supply supercharged air to the cylinder; an intake valve to supply intake air by selectively opening and closing the cylinder; a variable valve timing device to adjust opening and closing timings of the intake valve; a variable valve duration device to adjust an opening duration of the intake valve; and a controller to adjust the amount of air inside of the cylinder by fixing an intake valve opening (IVO) timing and adjusting an intake valve closing (IVC) timing through the variable valve timing device and the variable valve duration device from a time at which a demanded torque is input to a time at which the demanded torque is followed by the throttle valve or the supercharger.
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公开(公告)号：US10927771B2
公开(公告)日：2021-02-23
申请号：US16701926
申请日：2019-12-03
发明人： Hyeonwoo Kim , Kyoung Pyo Ha , Back Sik Kim , Jong Gu Kim
摘要： A continuous variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, wherein the camshaft is inserted into the cam unit, a guide bracket having an upper guide boss formed thereon, an internal wheel transmitting rotation of the camshaft to the cam unit, a wheel housing in which the internal wheel is rotatable inserted, wherein the wheel housing includes a guide shaft on which a guide screw thread is formed and the guide shaft is inserted into the upper guide boss to be movable, a worm wheel to which an internal screw thread engaging with the guide screw thread is formed therewithin, and to which an external screw thread is formed thereon, and a control shaft on which a control worm engaging with the external screw thread is formed.
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公开(公告)号：US10436080B2
公开(公告)日：2019-10-08
申请号：US15833405
申请日：2017-12-06
发明人： Soo Hyung Woo , Jin Wook Son , You Sang Son , Seung Kook Han , Back Sik Kim , Wootae Kim
摘要： A multiple variable valve lift apparatus may include a moving cam formed of a hollow cylindrical shape, configured to be moveable in an axial direction of a camshaft while being rotated with the camshaft, and forming a plurality of cams implementing a cam guide protrusion device and different valve lifts from each other; an operation device selectively guiding a cam guide protrusion device to move the moving cam in the axial direction of the camshaft; a controller configured for controlling an operation of the operation device; a valve opening/closing device in contact with any one cam among the plurality of cams; a plurality of stopper grooves formed at an external circumference of the camshaft; and a stopper device provided at the moving cam and inserted to the stopper groove to be rotated at a position after the moving cam is moved.
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公开(公告)号：US10174643B2
公开(公告)日：2019-01-08
申请号：US15806153
申请日：2017-11-07
发明人： You Sang Son , Ingee Suh , Kiyoung Kwon , In Sang Ryu , Kyoung Pyo Ha , Dongheon Park , Wootae Kim , Back Sik Kim , Seung Jae Lee
摘要： A continuous variable valve duration apparatus may include a camshaft, a cam device on which a cam is formed, of which the camshaft is inserted thereto and of which a relative phase angle with respect to the camshaft is variable, an internal bracket transmitting rotation of the camshaft to the cam device, a wheel housing in which the internal bracket is rotatably inserted and on which a guide groove parallel to the camshaft is formed, a control portion including a control shaft disposed parallel to the camshaft and inserted into the guide groove, and the control portion selectively rotating the control shaft for the relative position of the wheel housing with respect to the camshaft to be changed and a slider housing interposed between the control shaft and the guide groove.
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