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公开(公告)号：US20210262429A1
公开(公告)日：2021-08-26
申请号：US17251987
申请日：2019-06-12
申请人： Fueltech Ltda
摘要： A power control method/process of an internal combustion engine employing a selective ignition delay, in which the process chooses, in real time, just before the ignition, whether the next cylinder should have its power reduced or not, in such a way that this choice at high speed, individualized by cylinder, guarantees a higher resolution in the power control, where the process has the following steps: vaporized air and fuel enters the combustion chamber of the cylinder; a piston compresses the air and fuel increasing their pressure; the ignition spark does not occur, keeping the gases in the combustion chamber unchanged; the inertia of the engine causes the piston to move, where the ignition spark occurs shortly thereafter, with reduced work generation; air and fuel still expanding are expelled through the exhaust valve.
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公开(公告)号：US20210262410A1
公开(公告)日：2021-08-26
申请号：US16799088
申请日：2020-02-24
摘要： A method for stopping an engine within a desired crankshaft angular range is disclosed. In one example, the method may take no control actions if it is determined that the engine will stop within the desired crankshaft angular range. However, if it is determined that the engine may stop outside of the desired crankshaft angular range, expansion combustion may be initiated in a cylinder so that the engine stops in a desired crankshaft angular range.
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公开(公告)号：US20210088019A1
公开(公告)日：2021-03-25
申请号：US16891648
申请日：2020-06-03
发明人： Kenji SENDA , Masahiro MORI
摘要： An ignition timing control device for an internal combustion engine includes a storage device and a processor. The storage device stores a first learned neural network and a second learned neural network. The processor is configured to perform, in a next cycle where ignition timing is delayed, control to delay the ignition timing in a cycle after the next cycle based on a difference between a predictive value of an estimate of a value representing knocking intensity calculated with use of the second learned neural network and the estimate of the value representing the knocking intensity calculated with use of the first learned neural network. When the difference is larger than a predetermined set value, the processor is configured not to perform the control to delay the ignition timing in the cycle after the next cycle.
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公开(公告)号：US20210010449A1
公开(公告)日：2021-01-14
申请号：US16977236
申请日：2019-03-14
申请人： Walbro LLC
发明人： Takashi Abei , Shunya Nakamura , Dairoku Suzuki , Jun Takano , Yuki Tanaka , Kazunori Tsubakino , Makoto Waku
摘要： In at least some implementations, a method of controlling spark events in an engine includes determining for at least two engine revolutions in a four-stroke engine at least one characteristic of the primary coil voltage for a spark event, determining, based upon the characteristic of the primary coil voltage, which of the spark events is associated with a compression phase and which of the spark events is associated with an exhaust phase of engine operation, and providing spark events in subsequent engine revolutions that are associated with the compression phase of engine operation but not in revolutions associated with the exhaust phase of engine operation. In at least some implementations, the characteristic is the duration of the spark event as determined by changes in the primary coil voltage, and the characteristic may be that the duration that the primary coil voltage is above a threshold voltage.
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公开(公告)号：US20200340422A1
公开(公告)日：2020-10-29
申请号：US16928141
申请日：2020-07-14
申请人： DENSO CORPORATION
发明人： Masatake WADA
摘要： An ECU causes an injector to implement multiple split injections during a combustion cycle and to implement a final split injection among the split injections in the latter half of the compression stroke. The ECU further sets a time interval between the injection timing for the final split injection and the ignition timing of an ignition plug at a constant time in a region in which the fuel pressure is the same. Then, the ECU sets a crank angle position based on the time interval and a rotational speed of an output shaft.
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公开(公告)号：US09932935B2
公开(公告)日：2018-04-03
申请号：US14639299
申请日：2015-03-05
发明人： Marek Lajda
IPC分类号： F02D41/06 , F02M1/02 , F02P5/152 , F02P5/155 , F02P5/06 , F02P11/02 , F02P1/02 , F02P1/08 , F02P5/15 , F02P11/00 , F02D31/00 , F02B63/02 , F02D41/24 , F02N3/02
CPC分类号： F02M1/02 , F02B63/02 , F02D31/001 , F02D41/2422 , F02D2200/1012 , F02D2400/06 , F02N3/02 , F02P1/02 , F02P1/086 , F02P5/06 , F02P5/1506 , F02P5/1521 , F02P5/1555 , F02P5/1556 , F02P11/00 , F02P11/02 , Y02T10/46
摘要： An ignition system of a combustion engine has a start-up adjustment curve with a maximum rotational speed, an operating adjustment curve and a switch-over device for switching between curves. The start-up adjustment curve is selected in the case of a start-up of the combustion engine. A rotational speed curve is divided into adjacent cycles. The start of the first cycle is the point in time of the second ignition after the start-up and the start of the subsequent cycles is in each case the point in time of ignition at which the rotational speed is less than in the case of the subsequent point in time of ignition. The criterion for switching to the operating adjustment curve is whether the average of the rotational speeds of successive cycles differs by less than a first tolerance value.
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公开(公告)号：US08731805B2
公开(公告)日：2014-05-20
申请号：US12722991
申请日：2010-03-12
申请人： Keiichiro Bungo
发明人： Keiichiro Bungo
CPC分类号： F02P5/1508 , F02B2075/027 , F02D37/02 , F02D41/009 , F02D41/062 , F02D2041/0092 , F02D2200/1012 , F02D2400/02 , F02N3/02 , F02P7/077
摘要： In an apparatus for controlling ignition of a general-purpose internal combustion engine in which an ignition signal is produced both in a compression stroke and in an exhaust stroke of a four stroke cycle, one of the ignitions to be conducted based on the produced two ignition signals is cut and an after-ignition-cut engine speed is detected. Then it is discriminated whether each of the two ignition signals was produced in the compression stroke or in the exhaust stroke based on a difference between an average engine speed and the after-ignition-cut engine speed, and the ignition is controlled based on the ignition signal discriminated to be produced in the compression stroke in the two ignition signals, thereby enabling to improve the duration life of an ignition plug, with simple and compact structure.
摘要翻译： 在用于控制在四冲程循环的压缩冲程和排气冲程中产生点火信号的通用内燃机的点火装置中，基于所产生的两个点火进行点火之一 信号被切断，并且检测到点火后切割的发动机转速。 然后，基于平均发动机转速和点火后切削发动机转速之间的差异，判断两个点火信号是否在压缩行程或排气冲程中产生，并且基于点火来控制点火 在两个点火信号中的压缩冲程中产生的信号被识别，从而能够以简单和紧凑的结构提高火花塞的持续时间。
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公开(公告)号：US08186330B2
公开(公告)日：2012-05-29
申请号：US12995525
申请日：2009-05-26
申请人： Atsushi Kobayashi
发明人： Atsushi Kobayashi
IPC分类号： F02P5/06
CPC分类号： F02D13/0269 , F01L1/143 , F01L1/3442 , F01L2001/34426 , F02B23/104 , F02B29/0418 , F02B2075/125 , F02D13/0238 , F02D23/02 , F02D41/0007 , F02D41/221 , F02D2041/001 , F02P5/1502 , F02P5/1521 , Y02T10/142 , Y02T10/144 , Y02T10/46
摘要： An engine control apparatus is provided with an engine, an ignition device, a valve timing changing mechanism, an intake valve close timing detecting device, a supercharger and a controller. The engine achieves a Miller cycle by the valve timing changing mechanism setting an intake valve close timing to occur after a bottom dead center timing. The controller controls an ignition timing of the ignition device, the open timing of the intake valve and the close timing of the intake valve. The controller retards the ignition timing during supercharging and when a detected value of the intake valve close timing is earlier than a target value of the intake valve close timing by at least a prescribed value in comparison with a situation in which the detected value matches the target value of the intake valve close timing.
摘要翻译： 发动机控制装置设置有发动机，点火装置，气门正时改变机构，进气门关闭定时检测装置，增压器和控制器。 发动机通过气门正时改变机构实现米勒循环，从而设定在下止点定时之后发生的进气门关闭定时。 控制器控制点火装置的点火正时，进气门的打开正时和进气门的关闭正时。 控制器在增压期间延迟点火正时，并且当检测值与目标相匹配的情况相比，当进气门关闭正时的检测值比进气门关闭定时的目标值早至少规定值时， 进气门关闭正时值。
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9.发明授权公开(公告)号：US07552714B2
公开(公告)日：2009-06-30
申请号：US11838606
申请日：2007-08-14
CPC分类号： F02P1/04 , F02P7/0775
摘要： An ignition device for a motor unit with an internal combustion engine provided with a piston, a combustion chamber with a spark plug, a crankshaft driven by the piston, an intake port supplying combustion air to the combustion chamber, an exhaust for removing combustion gases from the combustion chamber, a signal generator driven by the crankshaft and emitting for one crankshaft revolution an alternating voltage signal, has an ignition unit that triggers a spark at the spark plug at a preselectable timing. The ignition unit is a module separate from the motor unit. An alternating voltage signal generated by the signal generator is supplied to the ignition unit as an information signal sufficient for operating the internal combustion engine. The alternating voltage signal is supplied to a first unit for energy processing and to a second unit for processing information for control of the internal combustion engine.
摘要翻译： 一种用于具有内燃机的电动机单元的点火装置，其具有活塞，具有火花塞的燃烧室，由活塞驱动的曲轴，向燃烧室供应燃烧空气的进气口，用于从燃烧室排出燃烧气体的排气 燃烧室，由曲轴驱动并发出一个曲轴转速的信号发生器的交流电压信号，具有在可选择的时刻触发火花塞火花的点火单元。 点火单元是与电机单元分开的模块。 由信号发生器产生的交流电压信号作为足以操作内燃机的信息信号提供给点火单元。 交流电压信号被提供给用于能量处理的第一单元和用于处理内燃机控制信息的第二单元。
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公开(公告)号：US07448360B2
公开(公告)日：2008-11-11
申请号：US11516645
申请日：2006-09-07
申请人： Masayuki Kita
发明人： Masayuki Kita
CPC分类号： F02D41/0097
摘要： A rotation speed calculation interval is set near a combustion top dead center of each cylinder of an engine. An interval rotation time necessary for a crankshaft to rotate through the rotation speed calculation interval is calculated as angular speed information of the crankshaft in the rotation speed calculation interval for each combustion stroke of the engine. Engine rotation speed is calculated based on the interval rotation time. The angular speed information of the crankshaft in the rotation speed calculation interval set near the combustion top dead center reflects a combustion state or generated torque. By calculating the engine rotation speed based on the angular speed information, the engine rotation speed highly correlated with the combustion state or the generated torque of the engine can be calculated.
摘要翻译： 在发动机的每个气缸的燃烧上止点附近设置转速计算间隔。 曲轴通过转速计算间隔旋转所需的间隔旋转时间被计算为发动机的每个燃烧冲程的转速计算间隔中的曲轴的角速度信息。 基于间隔旋转时间计算发动机转速。 在设定在燃烧上止点附近的转速计算间隔中的曲轴的角速度信息反映燃烧状态或产生的转矩。 通过基于角速度信息计算发动机转速，可以计算与发动机的燃烧状态或所产生的转矩高度相关的发动机转速。
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