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公开(公告)号：US11255281B2
公开(公告)日：2022-02-22
申请号：US16860657
申请日：2020-04-28
发明人： Hyeon Woo Kim , Kyoung Pyo Ha
摘要： An engine includes: a duration apparatus for adjusting an opening duration of an intake valve, a Cylinder De-Activation (CDA) apparatus for controlling deactivation of an exhaust valve, an igniter, an injector for injecting a fuel, an operation state signal unit for measuring an operation state of a vehicle, and a controller for controlling the operations of the duration apparatus, the CDA apparatus, the igniter, and the injector based on an output signal from the operation state signal unit. A control method for this engine includes: determining, by the controller, whether the operation state of the vehicle corresponds to a CDA operation mode; and when the CDA operation mode is determined, operating the CDA apparatus so as to stop the operations of the igniter and the injector, increase an opening duration of the intake valve, and deactivate the exhaust valve by controlling the CDA apparatus.
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公开(公告)号：US11306627B2
公开(公告)日：2022-04-19
申请号：US17113009
申请日：2020-12-05
发明人： Hyeon Woo Kim , Kyoung Pyo Ha , Back Sik Kim , Jong Gu Kim
摘要： A continuously 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, first and second guide brackets into which the camshaft is inserted, a wheel housing movably mounted to the first guide bracket and the second guide bracket, respectively, an internal wheel rotatably provided on each wheel housing and transmitting rotation of the camshaft to the cam unit, a worm wheel mounted on the first guide bracket and the second guide bracket, respectively to engage the wheel housing, a control shaft which is rotatably mounted on the first guide bracket and the second guide bracket, and engages with the each worm wheel to move the position of the wheel housing according to its rotation, and a connecting member that connects the first guide bracket and the second guide bracket.
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公开(公告)号：US11306628B2
公开(公告)日：2022-04-19
申请号：US17113012
申请日：2020-12-05
发明人： Hyeon Woo Kim , Kyoung Pyo Ha , Back Sik Kim , Jong Gu Kim
摘要： A continuously variable valve duration apparatus includes a camshaft, a cam unit on which a cam is formed, a guide bracket including an upper guide boss, an internal wheel configured to transmit rotation of the camshaft to the cam unit, a wheel housing in which the internal wheel is rotatably inserted, wherein a guide thread is formed in a portion of the wheel housing, and of which a guide shaft is formed to be movably inserted into the upper guide boss, a worm wheel to which an internal thread engaging with the guide thread is formed in the worm wheel, and to which an external thread is formed thereon, a control shaft on which a control worm engaged with the external thread is formed, and an upper bushing mounted on a lower portion of the upper guide boss to support the guide shaft.
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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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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：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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8.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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