公开(公告)号：US11773758B2

公开(公告)日：2023-10-03

申请号：US17788747

申请日：2020-09-24

申请人： Kawasaki Jukogyo Kabushiki Kaisha

发明人： Atsushi Hisano ,  Youta Sakurai ,  Yoshichika Sato ,  Satoru Takao

IPC分类号： F01L13/00 ,  F01L1/46 ,  F02D13/02 ,  F01L1/18 ,  F01L1/053

CPC分类号： F01L13/0063 ,  F01L1/185 ,  F01L1/46 ,  F02D13/0207 ,  F01L1/053 ,  F02D2013/0296

摘要： A variable valve mechanism includes a cam that rotates about a rotating shaft in association with rotation of a crank shaft of an engine, a swinging arm that is disposed between the cam and a valve and is pushed by the rotating cam to swing and push the valve by a first end portion of the swinging arm, and a moving device that moves a second end portion of the swinging arm. Further, there is a regulating member that is coupled to the first end portion of the swinging arm so as to be rotatable and regulates displacement of the first end portion of the swinging arm relative to the valve when the second end portion of the swinging arm is moved by the moving device. The mechanism further includes a connection member that connects the second end portion of the swinging arm to the moving device.

公开(公告)号：US20230212964A1

公开(公告)日：2023-07-06

申请号：US17991884

申请日：2022-11-22

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

发明人： Hyeon Woo Kim ,  Back Sik Kim ,  Jinyoung Jung

IPC分类号： F01L13/00 ,  F01L1/053 ,  F02D13/02 ,  F02D41/22

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.

公开(公告)号：US20190085777A1

公开(公告)日：2019-03-21

申请号：US15838862

申请日：2017-12-12

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Min-Kyu Won ,  Hyung-Soo Do ,  Soo-Hyeok Kang ,  Dae-Woo Kim

IPC分类号： F02D41/00 ,  F02D13/02

CPC分类号： F02D41/0052 ,  F02D13/0207 ,  F02D13/0215 ,  F02D13/0261 ,  F02D41/0062 ,  F02D41/0077 ,  F02D41/1446 ,  F02D41/1448 ,  F02D2200/0406

摘要： A method and apparatus for calculating an internal exhaust gas recirculation (EGR) amount of an engine include a continuously variable valve duration (CVVD) apparatus. The internal EGR amount is calculated by correcting a backflow gas amount based on a valve duration changed by operation of the continuously variable valve duration apparatus during valve overlap of an intake valve or an exhaust valve.

公开(公告)号：US20190010839A1

公开(公告)日：2019-01-10

申请号：US16069500

申请日：2017-01-11

申请人： ISUZU MOTORS LIMITED

发明人： Hiroshi TSUNODA

IPC分类号： F01L13/00 ,  F02D13/02 ,  F02B75/20 ,  F02D13/06

CPC分类号： F01L13/0036 ,  F01L13/00 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2013/0052 ,  F01L2800/00 ,  F01L2800/16 ,  F02B75/20 ,  F02D13/0207 ,  F02D13/06

摘要： A cam-switching device switches between first and second cams provided so as to correspond to intake exhaust valves of an engine. In a case of switching from the first cam to the second cam, a cylinder resting unit stops the opening and closing operations of the intake and exhaust valves in the same combustion cycle, and a cam shaft moving unit starts sliding the cam shaft in a first cam angle range. In a case of switching from the second cam to the first cam, the cylinder resting unit stops the opening and closing operations of the intake and exhaust valves in the same combustion cycle, and the cam shaft moving unit starts sliding the cam shaft in a second cam angle range.

公开(公告)号：US10060361B2

公开(公告)日：2018-08-28

申请号：US15626652

申请日：2017-06-19

申请人： Ford Global Technologies, LLC

发明人： Joerg Kemmerling ,  Franz Arnd Sommerhoff ,  Helmut Matthias Kindl ,  Vanco Smiljanovski ,  Claudia Katharina Herudek ,  Andreas Kuske

IPC分类号： F02D13/02 ,  F02B25/14 ,  F02D41/00

CPC分类号： F02D13/0207 ,  F02B25/145 ,  F02D13/0273 ,  F02D41/0007 ,  F02D2041/001 ,  Y02T10/144 ,  Y02T10/18

摘要： A method and system for perform a charge exchange in internal combustion engine comprising an additional intake and exhaust valve lifts performed during positive pressure gradients between the intake and exhaust systems to reducing scavenging losses and increase torque during low engine speeds.

公开(公告)号：US20180187617A1

公开(公告)日：2018-07-05

申请号：US15895713

申请日：2018-02-13

申请人： BorgWarner Inc.

发明人： John Shutty ,  Houcine Ben Bechir Benali

IPC分类号： F02D41/00 ,  F02M26/05 ,  F02M26/06 ,  F02M26/24 ,  F02D41/14 ,  F02D13/02 ,  F02B29/04 ,  F02M26/71 ,  F02M26/48 ,  F02M26/16 ,  F02M26/15 ,  F02M26/10 ,  F02M26/01

CPC分类号： F02D41/0065 ,  F02B29/0406 ,  F02D13/0207 ,  F02D41/0007 ,  F02D41/006 ,  F02D2041/141 ,  F02D2041/1431 ,  F02D2200/0402 ,  F02M26/01 ,  F02M26/05 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  F02M26/16 ,  F02M26/24 ,  F02M26/48 ,  F02M26/71 ,  Y02T10/144 ,  Y02T10/47

摘要： A method of controlling exhaust gas recirculation (EGR) in a turbocharged engine system including multiple EGR paths to account for at least one of system constraints, or dead time and/or lag time associated with at least one of the EGR paths.

公开(公告)号：US20180106198A1

公开(公告)日：2018-04-19

申请号：US15725679

申请日：2017-10-05

申请人： Mazda Motor Corporation

发明人： Yoshiyuki Kamoyama ,  Tsuyoshi Goto

IPC分类号： F02D13/02 ,  F01L1/344

CPC分类号： F02D13/0207 ,  F01L1/047 ,  F01L1/344 ,  F01L2820/032

摘要： A variable valve train for an engine is provided that includes a plurality of electric variable valve mechanisms, a single drive circuit used to drive at least two of the plurality of electric variable valve mechanisms, and a controller provided separately from the drive circuit and configured to control the drive circuit. The drive circuit is integrated with at least one of the at least two electric variable valve mechanisms.

公开(公告)号：US20180100447A1

公开(公告)日：2018-04-12

申请号：US15839624

申请日：2017-12-12

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： In Sang RYU ,  Kyoung Pyo HA ,  You Sang SON ,  Kiyoung KWON

IPC分类号： F02D13/02

CPC分类号： F02D13/0207 ,  F01L1/356 ,  F01L13/0015 ,  F01L2001/0473 ,  F01L2001/0537 ,  F01L2013/103 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2800/04 ,  F01L2820/04 ,  F01L2820/041 ,  F01L2820/042 ,  F01L2820/044 ,  F02D13/0215 ,  F02D13/0261 ,  F02D41/0007 ,  F02D2009/0235 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/1002 ,  F02D2200/101 ,  Y02T10/144 ,  Y02T10/18

摘要： A method for controlling intake and exhaust valves of an engine may include: determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust CVVD device, current opening and closing timings of the intake valve and/or exhaust valve based on the target opening duration of the valves; and advancing or retarding, by the intake and/or exhaust CVVD devices, the current opening timing of the intake and exhaust valves while simultaneously retarding or advancing the current closing timing of the intake and exhaust valve by a predetermined value based on the target opening duration.

公开(公告)号：US20180100444A1

公开(公告)日：2018-04-12

申请号：US15839028

申请日：2017-12-12

申请人： HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

发明人： In Sang RYU ,  Kyoung Pyo HA ,  You Sang SON ,  Kiyoung KWON

IPC分类号： F02D13/02

CPC分类号： F02D13/0207 ,  F01L1/34 ,  F01L13/0015 ,  F01L2001/0473 ,  F01L2001/0537 ,  F01L2001/34496 ,  F01L2013/0052 ,  F01L2250/04 ,  F01L2820/041 ,  F02D13/0215 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/0007 ,  F02D41/2422 ,  F02D2009/0235 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/04 ,  F02D2200/1002 ,  F02D2200/101 ,  Y02T10/18 ,  Y02T10/42

摘要： A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve; controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve; determining, by a controller, a target opening duration of the intake valve and target opening or target closing timings of the intake valve based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration; and advancing or retarding, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding or advancing the current closing timing of the intake valve by a predetermined value based on the target opening duration of the intake valve.

公开(公告)号：US20180100443A1

公开(公告)日：2018-04-12

申请号：US15379087

申请日：2016-12-14

申请人： Hyundai Motor Company

发明人： Kyung Mo Kim

IPC分类号： F02D13/02 ,  F01L1/053 ,  F01L1/18 ,  F01L13/00

CPC分类号： F02D13/0207 ,  F01L1/053 ,  F01L1/181 ,  F01L1/20 ,  F01L1/26 ,  F01L1/267 ,  F01L1/356 ,  F01L13/0015 ,  F01L13/0026 ,  F01L2001/0476 ,  F01L2001/0535 ,  F01L2013/103 ,  F01L2105/00

摘要： A continuous variable valve duration system may include a camshaft, and a first cam portion including a first cam. The camshaft is inserted in the first cam portion. A relative phase angle of the first cam with respect to the camshaft is variable. The system may further include an inner bracket transmitting rotation of the cam shaft to the first cam portion, a slider housing in which the inner bracket is rotatably inserted and movable along a predetermined first direction, a rocker shaft, a first rocker arm rotatably disposed to the rocker shaft of which a first end contacts with the first cam and of which a second end is connected to a first valve, an upper housing connected with the slider housing and relatively movable with respect to the slider housing along a second direction vertical to the first direction and a control portion selectively moving the upper housing.