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公开(公告)号:US20180340482A1
公开(公告)日:2018-11-29
申请号:US16053592
申请日:2018-08-02
发明人: Joseph Norman Ulrey
CPC分类号: F02D41/042 , F01N3/10 , F01N13/107 , F01N2410/00 , F02B37/00 , F02D9/08 , F02D13/0242 , F02D13/0257 , F02D13/0276 , F02D41/0002 , F02D41/062 , F02D41/26 , F02D2041/001 , F02D2041/002 , F02N19/004 , Y02T10/144 , Y02T10/18 , Y02T10/42
摘要: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, in response to a request to shut down the split exhaust engine system, an intake throttle may be closed and a first valve disposed in a secondary flow passage coupled between the intake manifold, downstream of the intake throttle, and a first exhaust manifold coupled to a first set of exhaust valves, may be opened. As a result, unburned hydrocarbons may be routed to a catalyst disposed in the exhaust passage.
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公开(公告)号:US20180187613A1
公开(公告)日:2018-07-05
申请号:US15624983
申请日:2017-06-16
发明人: Seung-Bum KIM
CPC分类号: F02D41/0002 , F02D13/0234 , F02D2041/001 , F02D2041/002 , F02D2041/1409 , F02D2200/1002 , F02D2250/21 , Y02T10/18 , Y02T10/42
摘要: A method of controlling an engine which has a continuous variable valve duration (CVVD) device that controls an operation of opening or closing an intake valve, and an ETC device that controls an operation of opening or closing a throttle valve and adjusts the amount of air to be introduced into a combustion chamber, may include determining whether it is necessary to increase or decrease engine torque; changing a duration of the intake valve by using the CVVD device when it is necessary to increase or decrease the engine torque; and adjusting the amount of air introduced through the ETC device in a state in which the duration of the intake valve is changed.
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3.
公开(公告)号:US10006378B2
公开(公告)日:2018-06-26
申请号:US15340772
申请日:2016-11-01
发明人: In Sang Ryu , Kyoung Pyo Ha , You Sang Son , Kiyoung Kwon
CPC分类号: F02D13/0215 , F01L1/053 , F01L1/34 , F01L13/0015 , F01L2001/0537 , F01L2800/00 , F02D41/0002 , F02D2041/001 , F02D2041/002 , F02D2200/0406 , F02D2200/1002 , F02D2200/101 , F02D2200/1012 , Y02T10/18 , Y02T10/42
摘要: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling a valve overlap between the intake valve and an exhaust valve in a first control region; maintaining the maximum duration of the intake valve and applying a maximum duration to the exhaust valve in a second control region; maintaining a manifold absolute pressure (MAP) at a predetermined pressure in a third control region; controlling a throttle valve to be fully opened and generating the valve overlap in a fourth control region; and controlling the throttle valve to be fully opened and controlling intake valve closing (IVC) timing according to the engine speed in a fifth control region.
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4.
公开(公告)号:US20180100454A1
公开(公告)日:2018-04-12
申请号:US15840079
申请日:2017-12-13
发明人: In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC分类号: F02D41/0002 , F01L1/047 , F01L1/053 , F01L1/344 , F01L13/0015 , F01L2001/0537 , F02D13/0211 , F02D13/0215 , F02D13/0261 , F02D41/009 , F02D41/18 , F02D2041/001 , F02D2041/002 , F02D2200/023 , F02D2200/101 , F02D2200/501 , F02D2200/602 , 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, first to fifth control regions based on engine load and speeds, and a target opening duration of the intake valve and target opening or target closing timings of the intake valve; 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.
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公开(公告)号:US20180100445A1
公开(公告)日:2018-04-12
申请号:US15839566
申请日:2017-12-12
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 , F01L1/053 , F01L1/34 , F01L1/344 , F01L13/0015 , F01L2001/0537 , F01L2001/34496 , F01L2013/103 , F01L2800/00 , F02D13/0211 , F02D13/0215 , F02D13/0261 , F02D41/0002 , F02D41/0235 , F02D41/1498 , F02D2009/0235 , F02D2041/002 , F02D2200/1002 , F02D2200/101 , Y02T10/18 , Y02T10/42 , Y10S903/905
摘要: A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT device, opening and closing timings of the intake valve and exhaust valves; 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 two-stage variable valve duration device, current opening and closing timings of the intake valve and exhaust valve based on the target opening durations. In particular, the exhaust two-stage VVD device switches a current opening duration of the exhaust valve to a first exhaust opening duration or a second exhaust opening duration which is shorter than the first opening duration based on the target opening duration of the exhaust valve.
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公开(公告)号:US20180094599A1
公开(公告)日:2018-04-05
申请号:US15635348
申请日:2017-06-28
发明人: Takuo WATANUKI , Hideki HAGARI
CPC分类号: F02D41/2438 , F02D9/02 , F02D9/08 , F02D41/0002 , F02D41/18 , F02D41/222 , F02D41/2445 , F02D41/2464 , F02D41/2477 , F02D41/248 , F02D2041/0017 , F02D2041/002 , F02D2200/0402 , F02D2200/0404 , F02D2200/0406 , F02D2250/16 , F02M35/1038 , Y02T10/42
摘要: By calculating a throttle opening learning value based on an actual effective opening area calculated based on the actual flow rate of intake air and an actual throttle opening with respect to variations caused by type differences of throttle valves and by calculating a throttle opening learning completion range indicating the region for which throttle opening learning completion has been determined based on the state of deviation between an effective opening area corrected by throttle opening learning and the actual effective opening area, control that applies the throttle opening learning value or fail-safe of an air flow sensor is performed in a contiguous throttle opening learning completion range.
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7.
公开(公告)号:US09932908B2
公开(公告)日:2018-04-03
申请号:US15340692
申请日:2016-11-01
发明人: In Sang Ryu , Kyoung Pyo Ha , You Sang Son , Kiyoung Kwon
CPC分类号: F02D13/0215 , F01L1/047 , F01L1/34 , F01L1/40 , F01L13/0015 , F01L2001/0537 , F01L2800/06 , F01L2800/10 , F02D13/0234 , F02D13/0238 , F02D13/0249 , F02D13/0261 , F02D41/0007 , F02D41/26 , F02D2041/001 , F02D2041/002 , F02D2200/101 , Y02T10/144 , Y02T10/18
摘要: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration. The method may include: classifying a plurality of control regions depending on an engine speed and an engine speed; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling the exhaust valve to reach a maximum duration in a second control region; advancing intake valve closing (IVC) timing and exhaust valve closing (EVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and controlling the IVC timing to an angle after BDC in a fifth control region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth control region.
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公开(公告)号:US20170254278A1
公开(公告)日:2017-09-07
申请号:US15446420
申请日:2017-03-01
发明人: Chikako OHISA , Osamu SUNAHARA , Daisuke UMETSU , Takuo HIRANO , Kunihiro SHISHIMA , Takahiro KAWAMURA , Yasunori TAKAHARA , Daisaku OGAWA , Takeatsu ITO
CPC分类号: F02D41/0087 , F02D11/02 , F02D11/105 , F02D37/02 , F02D41/0002 , F02D41/021 , F02D2041/002 , F02P5/045 , F02P5/1504 , Y02T10/42
摘要: A PCM comprises a basic target torque-deciding part for deciding a basic target torque, based on a driving state of a vehicle including an accelerator pedal operation state, a torque reduction amount-deciding part for deciding a torque reduction amount, based on a driving state of the vehicle other than the accelerator pedal operation state, a final target torque-deciding part for deciding a final target torque, based on the decided basic target torque and the decided torque reduction amount, and an engine output control part for controlling an engine to cause the engine to output the decided final target torque, wherein the engine output control part is operable to prohibit switching of an operation mode of the engine from being performed simultaneously with control of the engine according to a change in the final target torque corresponding to a change in the torque reduction amount.
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9.
公开(公告)号:US20170167407A1
公开(公告)日:2017-06-15
申请号:US15340692
申请日:2016-11-01
发明人: In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC分类号: F02D13/0215 , F01L1/047 , F01L1/34 , F01L1/40 , F01L13/0015 , F01L2001/0537 , F01L2800/06 , F01L2800/10 , F02D13/0234 , F02D13/0238 , F02D13/0249 , F02D13/0261 , F02D41/0007 , F02D41/26 , F02D2041/001 , F02D2041/002 , F02D2200/101 , Y02T10/144 , Y02T10/18
摘要: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration. The method may include: classifying a plurality of control regions depending on an engine speed and an engine speed; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling the exhaust valve to reach a maximum duration in a second control region; advancing intake valve closing (IVC) timing and exhaust valve closing (EVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and controlling the IVC timing to an angle after BDC in a fifth control region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth control region.
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公开(公告)号:US20170167401A1
公开(公告)日:2017-06-15
申请号:US15258035
申请日:2016-09-07
发明人: In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC分类号: B60W10/06 , B60W20/10 , F01L1/047 , F01L1/34 , F01L13/0015 , F01L2001/0537 , F01L2820/032 , F02D13/0219 , F02D13/0261 , F02D41/0002 , F02D41/0007 , F02D41/1406 , F02D2041/001 , F02D2041/002 , F02D2200/101 , Y02T10/144 , Y02T10/18 , Y02T10/42 , Y10S903/905
摘要: A method for controlling valve timing for an engine includes: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling an exhaust valve to limit a valve overlap in a first region; controlling the intake valve and the exhaust valve to maintain the maximum duration in a second region; advancing an intake valve closing (IVC) timing and an exhaust valve closing (EVC) timing in a third region; approaching the IVC timing to a bottom dead center (BDC) in a fourth region; controlling a throttle valve to be fully opened, advancing an intake valve opening (IVO) timing before a top dead center (TDC), and controlling the IVC timing to be a predetermined value after the BDC in a fifth region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth region.
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