公开(公告)号：US11905900B1

公开(公告)日：2024-02-20

申请号：US18066645

申请日：2022-12-15

申请人： SAUDI ARABIAN OIL COMPANY

发明人： Andrew Baur ,  Xin Yu ,  Anqi Zhang ,  David Cleary

IPC分类号： F02D41/02 ,  F02P9/00 ,  F01N3/20 ,  F02D41/30

CPC分类号： F02D41/0255 ,  F01N3/204 ,  F01N3/2013 ,  F01N3/2033 ,  F02D41/3017 ,  F02D41/3076 ,  F02P9/002 ,  F01N3/2006 ,  F01N2610/03

摘要： A motor system includes an engine having one or more cylinders, an electronic control unit, an exhaust treatment system in fluid connection with and downstream of the one or more cylinders. The exhaust treatment system includes an exhaust line, a combustion zone downstream, a combustion ignition source in the combustion zone, a catalyst downstream of an in thermal communication with the combustion zone. A method of heating a catalyst during an engine cold start and a method of initiating regular operating conditions of an engine having one or more cylinders are also described.

公开(公告)号：US11879420B1

公开(公告)日：2024-01-23

申请号：US18318021

申请日：2023-05-16

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Kiseon Sim ,  Soo Hyung Woo

IPC分类号： F02P3/045 ,  F02P9/00 ,  F02P17/12

CPC分类号： F02P17/12 ,  F02P3/045 ,  F02P3/0453 ,  F02P3/0456 ,  F02P9/002 ,  F02P2017/128

摘要： An embodiment system for controlling an ignition coil includes a first ignition coil including a first primary coil and a first secondary coil, a second ignition coil including a second primary coil and a second secondary coil, a spark plug including a pair of electrodes configured to generate a spark discharge by a discharge current generated by the first ignition coil and the second ignition coil, and a controller configured to selectively perform a multi-stage ignition through the first ignition coil and the second ignition coil or a single-stage ignition through the first ignition coil or the second ignition coil depending on an operation region of an engine and, in response to a misfire occurring in the engine while performing the multi-stage ignition, to adjust a number of ignitions or a dwell time.

公开(公告)号：US20230327407A1

公开(公告)日：2023-10-12

申请号：US18156488

申请日：2023-01-19

申请人： Mitsubishi Electric Corporation

发明人： Kimihiko TANAYA

IPC分类号： F02P9/00 ,  H01T13/20 ,  H01T13/52

CPC分类号： H01T13/20 ,  F02P9/002 ,  H01T13/52

摘要： An object herein is to provide, with respect to a spark ignition-type internal combustion engine in which the pressure of the air-fuel mixture in the combustion chamber becomes high, an ignition device which can suppress occurrence of a creeping discharge and thus contributes to highly efficient operation of the internal combustion engine. The ignition device according to this application includes: an ignition plug having a high-voltage side electrode and a ground side electrode; a high voltage generation device that applies a voltage to the high-voltage side electrode of the ignition plug; and an extension device that extends a dielectric breakdown-reaching time period that is a time period from when the voltage is applied to the high-voltage side electrode of the ignition plug, to when a voltage between the high-voltage side electrode and the ground side electrode of the ignition plug reaches a dielectric breakdown voltage.

公开(公告)号：US20190170052A1

公开(公告)日：2019-06-06

申请号：US15832025

申请日：2017-12-05

申请人： Ford Global Technologies, LLC

发明人： Aed Dudar

IPC分类号： F01P9/02 ,  F02D35/02 ,  F02D41/08 ,  F02D41/04

CPC分类号： F01P9/02 ,  F01P2003/021 ,  F02B39/10 ,  F02D13/06 ,  F02D35/025 ,  F02D41/0007 ,  F02D41/0087 ,  F02D41/042 ,  F02D41/047 ,  F02D41/086 ,  F02D2041/389 ,  F02D2200/021 ,  F02P9/002

摘要： Systems and methods are provided for cooling an overheated engine using a combination of variable displacement engine (VDE) technology and direct injection technology. In one example, a method may include deactivating a subset of engine cylinders based on an engine temperature and directly injecting liquid fuel into the deactivated cylinders. In this way, an increased thermal conductivity of the liquid fuel compared to air decreases the engine temperature at a faster rate than when air-based engine cooling methods are used, thereby preventing overheating-related engine degradation.

公开(公告)号：US20180355774A1

公开(公告)日：2018-12-13

申请号：US15988400

申请日：2018-05-24

申请人： Volkswagen Aktiengesellschaft

发明人： David SUDSCHAJEW

IPC分类号： F01N3/023 ,  F02P9/00 ,  F02P15/08 ,  F01N3/10 ,  F02D41/02 ,  F01N9/00 ,  F01N13/00 ,  F01N3/035

CPC分类号： F01N3/023 ,  B01D53/944 ,  B01D53/9445 ,  B01D53/9477 ,  B01D53/96 ,  B01D2255/102 ,  B01D2255/908 ,  F01N3/101 ,  F01N9/002 ,  F01N2250/02 ,  F01N2260/06 ,  F01N2390/02 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2560/025 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1606 ,  F02P9/002 ,  F02P23/04

摘要： A method for regenerating a particulate filter in an exhaust system of an internal combustion engine. In a normal operation, the internal combustion engine is operated at a stoichiometric air/fuel ratio. To regenerate the particulate filter, it is provided that the air/fuel ratio be adjusted toward lean, and, at the same time, that the combustion in the combustion chambers of the internal combustion engine be stabilized by suitably adapting the ignition energy, the duration of ignition, and/or the ignition frequency, to prevent misfires and the associated uncontrolled entrainment of unburned fuel into the exhaust system. The inventive method for regenerating the particulate filter makes possible a more rapid and lower-emission regeneration of a particulate filter. Also, an internal combustion engine having an exhaust system and a control unit that is adapted for implementing a method according to the present invention.

公开(公告)号：US20180291862A1

公开(公告)日：2018-10-11

申请号：US15574067

申请日：2016-04-20

申请人： ELDOR CORPORATION S.P.A.

发明人： Pasquale FORTE ,  Stefano SILVA ,  Eugenio CARUGATI

IPC分类号： F02P15/08 ,  F02P3/04 ,  F02P9/00

CPC分类号： F02P15/08 ,  F02P3/0442 ,  F02P9/002 ,  F02P9/007 ,  F02P15/10

摘要： An electronic ignition system for an internal combustion engine. The system includes an ignition coil provided with a primary winding and a secondary winding, a switch that is connected to the primary winding and that is drivable to an open and/or closed position according to a value of a driving signal. A control unit is configured to drive the switch to the open and/or closed position based on the driving signal. A voltage changing electronic element is operatively interposed between an electrical connection and the primary winding, and is configured to change the voltage value of the primary winding between at least a first and a second voltage value. The control unit is configured to generate the control signal and send the control signal to having the first value to the changing electronic element at least during a first charging interval of the primary winding.

公开(公告)号：US20180245562A1

公开(公告)日：2018-08-30

申请号：US15753227

申请日：2016-07-26

申请人： SOKEN, INC. ,  DENSO CORPORATION

发明人： Shohei ISHIDA ,  Shunichi TAKEDA

IPC分类号： F02P5/15 ,  F02P9/00

CPC分类号： F02P5/15 ,  F02P3/00 ,  F02P9/00 ,  F02P9/002 ,  F02P15/10

摘要： In an ignition device, a second circuit energizes a primary coil from its negative side in a first direction to thereby maintain energization of a second coil in a second direction during spark discharge started by a first circuit. The maintained energization continuously supplies energy to a spark plug, thus performing a continuation of the spark discharge. The first direction is opposite to a direction of energization of the primary coil carried out by the first circuit, and the second direction is the same as a direction of energization of the second coil that has been started based on the first circuit. A humidity detection unit detects humidity of intake air into an engine. The control section controls the first circuit to advance start timing of the spark discharge generated by the first circuit in accordance with an increase in the humidity of the intake air.

公开(公告)号：US20180209363A1

公开(公告)日：2018-07-26

申请号：US15875255

申请日：2018-01-19

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Tatsuaki SUZUKI

IPC分类号： F02D41/02 ,  F02D41/14

CPC分类号： F02D41/025 ,  F01N3/101 ,  F01N9/00 ,  F01N2430/06 ,  F01N2900/1402 ,  F01N2900/1602 ,  F02D41/008 ,  F02D41/123 ,  F02D41/1454 ,  F02D41/26 ,  F02D2200/0802 ,  F02P9/002 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/47

摘要： A control device for an internal combustion engine includes an electronic control unit. The electronic control unit is configured to execute temperature rise processing in which a temperature of a catalyst is raised by an air-fuel ratio of at least one of a plurality of cylinders being controlled to a rich air-fuel ratio, an air-fuel ratio of each of the other cylinders being controlled to a lean air-fuel ratio, and a fuel being ignited, and allow the temperature rise processing to continue, by allowing the fuel injection to continue while prohibiting the ignition of the fuel, in a case where the fuel cut request is present and the temperature of the catalyst is equal to or higher than the threshold during the execution of the temperature rise processing.

公开(公告)号：US09957946B2

公开(公告)日：2018-05-01

申请号：US15468424

申请日：2017-03-24

申请人： DENSO CORPORATION

发明人： Shota Kinoshita ,  Akimitsu Sugiura ,  Kaori Doi ,  Fumiaki Aoki

IPC分类号： F02P3/00 ,  F02P13/00 ,  H05H1/46 ,  F02P3/05 ,  F02P9/00 ,  F02P15/10 ,  F02P3/045 ,  F02P15/00 ,  F02P17/12 ,  H05H1/52

CPC分类号： F02P13/00 ,  F02P3/0456 ,  F02P3/05 ,  F02P3/053 ,  F02P9/002 ,  F02P15/005 ,  F02P15/10 ,  F02P17/12 ,  H05H1/46 ,  H05H1/52

摘要： An ignition device includes a spark plug, a measurement value detector, an electrical breakdown determiner, an AC voltage applying section, and a first changing section. The measurement value detector includes primary and secondary coils, and detects at least one measurement value among an ignition coil, a primary current, a primary voltage, a secondary current, and a secondary voltage. The electrical breakdown determiner determines whether a discharge has become an electrical breakdown state based on the measurement value. The AC voltage applying section applies an AC voltage of a first predetermined frequency that causes voltage resonance to the primary coil. The first changing section changes the frequency of the AC voltage to a second predetermined frequency that can maintain the electrical breakdown state and is lower in frequency than the first predetermined frequency when it is determined that the discharge has become the electrical breakdown state.

公开(公告)号：US09957945B2

公开(公告)日：2018-05-01

申请号：US15218901

申请日：2016-07-25

申请人： BorgWarner Ludwigsburg GmbH

发明人： Steffen Bohne ,  Alexander Schenk

IPC分类号： F02P9/00 ,  F02P23/04 ,  H01T19/00 ,  H01T13/44 ,  H01T13/50 ,  F02P3/06 ,  F02P3/00 ,  F02P15/10

CPC分类号： F02P9/002 ,  F02P3/005 ,  F02P3/06 ,  F02P15/10 ,  F02P23/04 ,  F02P23/045 ,  H01T13/44 ,  H01T13/50 ,  H01T19/00

摘要： Disclosed is an inventive method for controlling a corona ignition device of an internal combustion engine. A corona discharge, which ignites fuel in a combustion chamber of the engine, is generated by applying a voltage to the corona ignition device. An actual value that is characteristic of the nitrogen oxide concentration of the exhaust gas is compared with a setpoint value, and, if the actual value deviates from the setpoint value by more than a specified threshold value and the actual value is greater than the setpoint value, the voltage is reduced after the comparison.