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公开(公告)号：US20190195163A1
公开(公告)日：2019-06-27
申请号：US16092994
申请日：2017-04-07
发明人： Nobuyuki SATAKE , Tomohiro NAKANO
摘要： A fuel injection control device includes a conduction time calculation unit, a detection unit, an estimation unit, a correction unit, a sudden change determination unit, and a reflection speed setting unit. The detection unit detects a physical quantity having a correlation with an actual injection quantity during the partial lift injection. The estimation unit estimates the actual injection quantity on the basis of a detection result of the detection unit. The correction unit corrects the requested injection quantity by a correction quantity corresponding to a deviation between the actual injection quantity and the requested injection quantity. The sudden change determination unit determines whether or not the correction quantity is in a sudden change state on the basis of whether or not the correction quantity has changed from a previous value by a prescribed quantity or more. The reflection speed setting unit sets the reflection speed.
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公开(公告)号：US20190170075A1
公开(公告)日：2019-06-06
申请号：US16092807
申请日：2017-04-07
发明人： Nobuyuki SATAKE , Eiji MURASE , Tomohiro NAKANO
摘要： A fuel injection control device includes a correction unit to calculate a correction coefficient for correcting a valve closing timing detected by an electromotive force quantity detection mode by using a valve closing timing detected by a timing detection mode. An estimation unit estimates an estimated injection quantity by using a valve closing timing after corrected by using a correction coefficient when the electromotive force quantity detection mode is selected by a selection unit and a valve closing timing is detected by the electromotive force quantity detection mode.
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公开(公告)号：US20240003324A1
公开(公告)日：2024-01-04
申请号：US18137129
申请日：2023-04-20
发明人： Atsushi YUI , Tomohiro NAKANO
CPC分类号： F02P5/045 , F02P5/1502 , F02D19/022 , F02D41/0027 , F02D41/401
摘要： The electronic control unit performs a retarding process of retarding the ignition timing when the fuel pressure decreases, and lowers the peak of the combustion pressure in the cylinder, thereby suppressing the inflow of the combustion gas to the injector. Further, the electronic control unit performs an increasing process of increasing the injection amount of the hydrogen gas together with the retarding process, thereby suppressing the torque decrease of the engine due to the retard of the ignition timing.
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公开(公告)号：US20190178189A1
公开(公告)日：2019-06-13
申请号：US16093068
申请日：2017-04-07
发明人： Nobuyuki SATAKE , Eiji MURASE , Tomohiro NAKANO
摘要： A fuel injection control device includes a valve closing detection unit (54) to detect a valve closing timing by using either of an electromotive force quantity detection mode and a timing detection mode, a selection unit (21) to select either of the electromotive force quantity detection mode and the timing detection mode for detecting the valve closing timing, and a correction unit (21) to calculate a correction coefficient for correcting a requested injection quantity so as to reduce the difference between an estimated injection quantity and the requested injection quantity, and the selection unit selects the electromotive force quantity detection mode regardless of the value of the requested injection quantity when the calculation of the correction coefficient is not completed.
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公开(公告)号：US20160215721A1
公开(公告)日：2016-07-28
申请号：US14901153
申请日：2014-06-16
发明人： Tomohiro NAKANO , Eiji MURASE , Rihito KANEKO , Masanao IDOGAWA
CPC分类号： F02D41/20 , F02D41/2451 , F02D41/2467 , F02D2041/2006 , F02D2041/2051 , F02D2041/2058 , F02D2200/0602 , F02D2200/503
摘要： A drive system for fuel injection valves includes a battery, a capacitor, a drive control unit and an electronic control unit. The electronic control unit is configured to, when an energization start interval between a start of energization of a last one of the fuel injection valves and a start of energization of a current one of the fuel injection valves is longer than or equal to a peak reaching time of a last one of the fuel injection valves, extend an energization time of the current one of the fuel injection valves as the energization start interval reduces. The electronic control unit is configured to, when the energization start interval is shorter than the peak reaching time, reduce the energization time of the current one of the fuel injection valves is energized as the energization start interval reduces.
摘要翻译： 用于燃料喷射阀的驱动系统包括电池，电容器，驱动控制单元和电子控制单元。 电子控制单元被配置为当在最后一个燃料喷射阀的通电开始和当前一个燃料喷射阀的通电开始之间的通电开始间隔大于或等于达到峰值时达到 最后一个燃料喷射阀的时间在通电开始间隔减小时延长当前一个燃料喷射阀的通电时间。 电子控制单元被配置为当通电开始间隔比峰值到达时间短时，随着通电开始间隔减小，减小当前一个燃料喷射阀的通电时间。
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公开(公告)号：US20240344662A1
公开(公告)日：2024-10-17
申请号：US18416947
申请日：2024-01-19
IPC分类号： F17C5/02
CPC分类号： F17C5/02 , F17C2221/012 , F17C2223/0123 , F17C2250/0434
摘要： A hydrogen power system includes a hydrogen engine that operates using hydrogen as an energy source, a hydrogen tank that stores liquid hydrogen, and a hydrogen pump that pumps up the liquid hydrogen from the hydrogen tank and outputs it to the hydrogen engine, A hydrogen pump, a part of which slides within the hydrogen tank, and a controller, and the controller stops driving the hydrogen pump when it is determined that the efficiency of the hydrogen pump is decreasing, and then, after a prescribed wait time has elapsed, the hydrogen pump is driven again.
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公开(公告)号：US20190136789A1
公开(公告)日：2019-05-09
申请号：US16092940
申请日：2017-04-07
发明人： Nobuyuki SATAKE , Eiji MURASE , Tomohiro NAKANO
CPC分类号： F02D41/401 , F02D41/20 , F02D41/247 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02D2200/0614 , F02D2200/063 , F02M51/0614 , F02M51/0685 , Y02T10/44
摘要： A fuel injection control device includes a valve closing detection unit to detect a valve closing timing by using either of an electromotive force quantity detection mode and an timing detection mode and a selection unit to select either of the electromotive force quantity detection mode and the timing detection mode for detecting the valve closing timing, and the selection unit: selects the timing detection mode when a requested injection quantity is larger than a prescribed reference injection quantity in partial lift injection; and selects the electromotive force quantity detection mode when the requested injection quantity is smaller than the reference injection quantity.
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公开(公告)号：US20180313281A1
公开(公告)日：2018-11-01
申请号：US15924948
申请日：2018-03-19
发明人： Tomohiro NAKANO
CPC分类号： F02D41/0087 , F02D37/02 , F02D41/123 , F02D2200/1002
摘要： An intermittent combustion mode is executed while cyclically switching an intermittent firing pattern in such a manner that the skipped-cylinder interval is changed by one cylinder at a time. Furthermore, the intermittent firing pattern is switched in such a manner that the fired cylinder ratio in one cycle of switching of the intermittent firing pattern becomes equal to a target fired cylinder ratio. This suppresses the occurrence of vibration and noise having low frequencies that tend to disturb the occupant while limiting an increase in the rotational fluctuation of the engine.
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公开(公告)号：US20160348604A1
公开(公告)日：2016-12-01
申请号：US15164135
申请日：2016-05-25
发明人： Akihiko HIGUCHI , Tomohiro NAKANO , Eiji MURASE
摘要： During a catalyst rapid warm-up at a time of a cold start of an engine, a fuel is injected by a required injection quantity through a multi-stage injection consisting of a fuel injection by a full lift injection during an intake stroke and a fuel injection by a partial lift injection during a compression stroke. In a case where a deterioration of a combustion state is confirmed, a correction for increasing the required injection quantity, which is to enrich an air-fuel ratio, is performed. At a time of the enriching quantity increase, a sum of injection quantities of the multi-stage injection is increased by the amount of the correction for increasing the required injection quantity without the injection quantity and an injection timing of the fuel injection by the partial lift injection being changed from a base time.
摘要翻译： 在发动机冷起动期间的催化剂快速预热期间，通过在进气冲程期间通过全升程喷射的燃料喷射和燃料喷射的多级喷射，通过所需喷射量喷射燃料 在压缩冲程期间通过部分提升注射进行注射。 在确认了燃烧状态的劣化的情况下，进行用于增加所需喷射量的校正，以增加空燃比。 在浓缩量增加的时刻，多级喷射的喷射量的总和通过增加所需喷射量而不进行喷射量的校正量和通过部分提升的燃料喷射的喷射正时而增加 注射从基准时间改变。
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公开(公告)号：US20160305392A1
公开(公告)日：2016-10-20
申请号：US15083866
申请日：2016-03-29
发明人： Satoshi NAKAMURA , Tomohiro NAKANO
CPC分类号： F02P5/1502 , F02D2200/101 , F02P3/051 , Y02T10/46
摘要： An ECU outputs an ignition signal Si to an ignition apparatus through an ignition communication line. The ignition apparatus performs the closing operation of an ignition switching element, in a period during which the ignition signal Si is input. The ECU outputs a discharge waveform control signal Sc to a waveform control communication line, at a timing that is delayed by a predetermined delay time relative to an output timing of the ignition signal Si. In an input period of the discharge waveform control signal Sc after the stop of the input of the ignition signal Si, the ignition apparatus controls the electric current to flow through a primary coil, to a discharge current command value that is decided depending on the above delay time, by the opening-closing operation of a control switching element.
摘要翻译： ECU通过点火通信线路将点火信号Si输出到点火装置。 点火装置在点火信号Si输入的期间内进行点火开关元件的闭合动作。 在相对于点火信号Si的输出定时延迟预定的延迟时间的定时，ECU向波形控制通信线路输出放电波形控制信号Sc。 在点火信号Si的输入停止之后的放电波形控制信号Sc的输入期间，点火装置将通过初级线圈的电流控制为根据上述决定的放电电流指令值 延迟时间，通过控制开关元件的断开操作。
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