公开(公告)号：US10995726B2

公开(公告)日：2021-05-04

申请号：US15940366

申请日：2018-03-29

Applicant: Woodward, Inc.

Inventor： David C. Petruska ,  Sai Venkataramanan ,  Suraj Nair ,  Mark Notarfrancesco ,  Monte Wegner ,  Andy Vlietstra

IPC: F02P17/12 ,  F02P17/10 ,  F02P3/045 ,  F02P3/08 ,  F02P3/05 ,  F02P5/15 ,  F02P9/00 ,  F02P15/08 ,  F02P17/02 ,  F02P3/01 ,  F02P11/06

Abstract: The subject matter of this specification can be embodied in, among other things, a method that includes receiving a collection of measurements of electric current amplitude in a primary winding of an engine ignition system having the primary winding and a spark plug, identifying an ignition start time, identifying an inflection point based on the plurality of measurements, determining an inflection point time representative of a time at which the identified inflection point occurred, determining a spark start time based on an amount of time between the ignition start time and the inflection point time, and providing a signal indicative of the spark start time.

公开(公告)号：US20200309083A1

公开(公告)日：2020-10-01

申请号：US16902537

申请日：2020-06-16

Applicant: Cummins Inc.

Inventor： Daniel J. O'Connor ,  Robin J. Bremmer ,  J. Steven Kolhouse

IPC: F02P5/152 ,  F02P17/12 ,  F02P5/15 ,  F02P11/06 ,  F02B1/06 ,  F02B19/12

Abstract: Apparatuses, methods, and systems for igniting fuel for an internal combustion engine, an ignition system include a first ignition device associated with a pre-combustion chamber of a cylinder and a second ignition device associated with a main combustion chamber of the cylinder. An engine control unit is operably connected to both the engine and the ignition system to ignite fuel for the cylinder with the first ignition device independently of igniting fuel with the second ignition device. The engine control unit determines an occurrence of a combustion condition and in response thereto (i) ignites fuel for combustion with both the first and the second ignition devices or (ii) ignites fuel for combustion only with the second ignition device. The engine control unit determines a second combustion condition and in response thereto ignites fuel only with the first ignition device.

公开(公告)号：US20200300209A1

公开(公告)日：2020-09-24

申请号：US16687199

申请日：2019-11-18

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Dong-Soo Lee ,  Jung-Hun Lee ,  Sung-Kwan Bae ,  Do-Geun Jung

IPC: F02P17/12 ,  F02P11/06

Abstract: A self-diagnosis method for an ignition coil includes receiving and confirming a current flag (C/F) signal through monitoring of primary current of an ignition coil; monitoring secondary current of the ignition coil upon receiving the C/F signal and confirming whether a fault flag (F/F) signal for determining whether misfire of the ignition coil occurs is input; and determining whether an abnormal signal of the ignition coil is generated based on the result of confirming the C/F signal and the F/F signal respectively.

公开(公告)号：US10731582B2

公开(公告)日：2020-08-04

申请号：US15352881

申请日：2016-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nicholas J Kalweit ,  Julian R Verdejo ,  David S Mathews

IPC: F02D41/00 ,  F02P9/00 ,  F02P11/06 ,  F02D41/02 ,  F02D41/14 ,  G01M15/11 ,  F02D35/02 ,  F02D41/24 ,  F02P5/15

Abstract: A method, system, and engine are configured to determine a parameter based on rotational speeds of a crankshaft, over at least three cylinder combustion cycles. The method, system, and engine determine two or more estimated crankshaft rotational speeds at two or more positions in a leading cylinder combustion cycle, two or more estimated crankshaft rotational speeds at two or more positions in a middle cylinder combustion cycle, and two or more estimated crankshaft rotational speeds at two or more positions in a following cylinder combustion cycle. The method, system, and engine are configured to determine a calculated metric based on each of the determined leading estimated crankshaft rotational speeds, the determined middle estimated crankshaft rotational speeds, and the determined following estimated crankshaft rotational speeds. An engine parameter, such as misfire, is then determined based on the calculated metric.

公开(公告)号：US10024295B2

公开(公告)日：2018-07-17

申请号：US14916222

申请日：2014-08-04

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Isao Suzuki ,  Koji Yamamoto

IPC: F02P5/00 ,  F02P11/02 ,  F02D41/14 ,  F02P3/04 ,  F02P5/152 ,  F02D35/02 ,  G01L23/22 ,  G01L1/24 ,  F02D31/00 ,  F02P5/145 ,  F02P17/00 ,  F02P7/067 ,  F02P11/06

Abstract: An ignition timing control device has a knocking detection unit and an ignition timing adjustment unit. In a condition that the operation state of the internal combustion engine is suitable for adjustment of the ignition timing, the ignition timing control device outputs to an igniter an adjusted ignition signal as adjusted (corrected) by an adjusted ignition timing determination process. The ignition timing control device outputs to the igniter a reference ignition signal as it is outputted from an internal combustion engine control unit without adjustment (correction) in a condition that the operation state of the internal combustion engine is not suitable for adjustment of the ignition timing.

公开(公告)号：US09826620B2

公开(公告)日：2017-11-21

申请号：US15208179

申请日：2016-07-12

Applicant: FUJITSU TEN LIMITED

Inventor： Masashi Shibayama ,  Shoko Yamoto ,  Jyunya Tokinaga ,  Yusuke Masuda ,  Saori Aiba ,  Akio Okahara

IPC: H05H1/46 ,  F02P3/01 ,  F02P23/04 ,  H05H1/52 ,  F02P3/04 ,  F02P9/00 ,  F02P11/06

CPC classification number: H05H1/46 ,  F02P3/01 ,  F02P3/04 ,  F02P3/045 ,  F02P9/007 ,  F02P11/06 ,  F02P23/04 ,  F02P23/045 ,  H05H1/52 ,  H05H2001/463 ,  H05H2001/4682

Abstract: A high frequency generating device used in a plasma ignition apparatus according to an embodiment includes a high frequency output unit, an output control unit, a current detecting unit, and an abnormality detecting unit. The high frequency output unit outputs a high frequency. The output control unit shifts a state of the high frequency output unit from a non-output state to an output-ready state of the high frequency. The current detecting unit detects a current that flows through a power-supply path to the high frequency output unit. The abnormality detecting unit detects output abnormality of the high frequency in the non-output state when a value of a current detected by the current detecting unit in the non-output state exceeds a non-output threshold.

公开(公告)号：US09816477B2

公开(公告)日：2017-11-14

申请号：US15131501

申请日：2016-04-18

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Satoru Toda

IPC: H05B1/02 ,  F02P19/02 ,  F02P11/06

CPC classification number: F02P19/021 ,  F02P11/06 ,  F02P19/022 ,  F02P19/023 ,  F02P19/027

Abstract: Disclosed is a control apparatus for controlling power supply from a power source to a glow plug, including a plurality of semiconductor switching elements arranged to turn on and of power supply to the glow plug, a temperature fuse actuated by a temperature rise thereof to interrupt power supply to the semiconductor switching elements, a failure detection portion that detects the occurrence or non-occurrence of an ON failure in each of the semiconductor switching elements, and a control portion that performs drive control of the semiconductor switching elements. When the failure detection portion detects the ON failure in at least one of the semiconductor switching elements, the control portion increases the amount of heat generation of either the at least one of the semiconductor switching elements in which the ON failure is detected or any of the semiconductor switching elements in which the ON failure is not detected.

公开(公告)号：US09765748B2

公开(公告)日：2017-09-19

申请号：US14783901

申请日：2014-04-11

Applicant: DENSO CORPORATION

Inventor： Masahiro Ishitani ,  Akimitsu Sugiura ,  Makoto Toriyama ,  Satoru Nakayama ,  Yuuki Kondou ,  Hisaharu Morita ,  Naoto Hayashi ,  Yuuto Tamei ,  Takashi Oono ,  Shunichi Takeda

IPC: F02P3/04 ,  F02P15/10 ,  F02P11/06

CPC classification number: F02P3/0435 ,  F02P11/06 ,  F02P15/10

Abstract: An ignition control device comprises: a first switching element having a power source side terminal connected to an other end side of a primary coil and a first ground side terminal connected to a ground side; a second switching element having a second ground side terminal connected to the other end side of the primary coil; a third switching element having a third power source side terminal connected to the second power source side terminal in the second switching element, and a third ground side terminal connected to the ground side; and an energy storage coil. The energy storage coil is an inductor interposed in an electric power line connecting a non-ground side output terminal in a DC power source and the third power source side terminal in the third switching element, and stores energy from the turning on of the third switching element.

公开(公告)号：US08984933B2

公开(公告)日：2015-03-24

申请号：US13804133

申请日：2013-03-14

Applicant: STMicroelectronics SRL

Inventor： Ferdinando Taglialatela Scafati ,  Nicola Cesario ,  Domenico Porto ,  Bianca Maria Vaglieco ,  Simona Silvia Merola

IPC: G01M15/12 ,  F02D45/00 ,  G01L23/22 ,  G01M15/11 ,  F02D41/00 ,  F02D35/02 ,  F02P5/15 ,  F02D37/02 ,  F02D41/14 ,  F02P11/06 ,  F02P17/00 ,  F02P5/153

CPC classification number: F02D45/00 ,  F02D35/028 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/009 ,  F02D2041/1432 ,  F02D2200/025 ,  F02D2200/1012 ,  F02D2200/1015 ,  F02P5/1502 ,  F02P5/153 ,  F02P11/06 ,  F02P17/00 ,  G01L23/225 ,  G01M15/11 ,  Y02T10/46

Abstract: A method for control of an internal combustion engine includes generating, with a microelectromechanical system (MEMS) accelerometer, an acceleration signal representing vibrations of the internal combustion engine. An engine crank angle signal is generated based on the acceleration signal. The engine crank angle signal is compared with a target value. The internal combustion engine is adjusted based upon the comparing.

Abstract translation: 一种用于控制内燃机的方法包括利用微机电系统（MEMS）加速计产生表示内燃机的振动的加速度信号。 基于加速度信号产生发动机曲柄角信号。 将发动机曲柄角信号与目标值进行比较。 根据比较调整内燃机。

公开(公告)号：US06990955B2

公开(公告)日：2006-01-31

申请号：US10880536

申请日：2004-07-01

Applicant: Kuniaki Niimi

Inventor： Kuniaki Niimi

IPC: F02M25/14 ,  F02P11/06 ,  F02P5/152

CPC classification number: F02D35/027 ,  F02D41/0025 ,  F02P5/1527 ,  Y02T10/46

Abstract: There is provided a spark ignition engine having a low RON fuel tank to store a low RON fuel and a high RON fuel tank to store a high RON fuel, which can detect storage failure. It is judged that the two kinds of fuels are properly stored when differences between the base ignition timing and the practical ignition timing at different loads are identical. When the differences are not identical, for example, it is judged that the high RON fuel is stored both in the two fuel tanks when a difference between the proper mix fuel knocking-occur ignition timing and the practical ignition timing is decreased as the load is increased. When a difference between the proper mix fuel knocking-occur ignition timing and the practical ignition timing is increased as the load is increased, it is judged that the two kind of fuels are reversely stored when a difference of differences between the proper mix fuel knocking-occur ignition timing and practical ignition timing at predetermined two load is greater than a predetermined threshold, and it is judges that the low RON fuel is stored both in the two tanks when the difference of differences between the proper mix fuel knocking-occur ignition timing and practical ignition timing at predetermined two load is smaller than a predetermined threshold.

Abstract translation: 提供了具有低RON燃料箱以存储低RON燃料和高RON燃料箱的火花点火发动机，以存储可以检测存储故障的高RON燃料。 当基点点火正时与不同负载下的实际点火正时之间的差异相同时，判断为两种燃料正确地存储。 当差异不相同时，例如，当适当的混合燃料爆燃发生点火正时和实际点火正时之间的差异因负载是下降时，判断为高RON燃料被储存在两个燃料箱中 增加。 当适当的混合燃料爆燃发生点火正时与实际点火正时之间的差异随着负荷的增加而增加时，当适当的混合燃料爆燃时间差的差异被判定为反向储存两种燃料， 发生点火正时和在预定的两个负载下的实际点火正时大于预定阈值，并且当适当的混合燃料爆燃发生点火正时和 在预定的两个负载下的实际点火正时小于预定阈值。