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1. 发明公开

US20240295204A1 FUEL INJECTOR, AND METHOD FOR DRIVING FUEL INJECTOR 审中-公开
公开(公告)号：US20240295204A1
公开(公告)日：2024-09-05
申请号：US18570843
申请日：2022-06-22
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Hisao OGAWA
IPC分类号： F02M47/02 , F02D41/20
CPC分类号： F02M47/027 , F02D41/20 , F02D2041/2017 , F02D2200/0602
摘要： This fuel injector comprises: a main body portion including an inflow port into which fuel supplied from a fuel supply source flows, a flow passage through which the fuel that has flowed in from the inflow port flows, and a discharge port which is connected to the flow passage and which discharges the fuel; a valve unit at least a portion of which is formed using a magnetic body, which is disposed so as to be capable of moving in a straight-line direction between a position closing the discharge port and a position opening the discharge port, which is urged in the direction opening the discharge port by means of the pressure of the fuel flowing in from the inflow port, and to which an elastic force is imparted by an elastic member in the direction closing the discharge port; a solenoid device which includes a coil, which generates an electromagnetic force by causing a drive current to flow through the coil, and which drives the valve unit in the direction opening the discharge port, by means of the electromagnetic force; and a control portion which variably sets the value of a prescribed time period that includes a drive current supply start time point, of the drive current flowing through the coil, in accordance with a supply pressure of the fuel supplied to the inflow port.

2. 发明申请

US20180156148A1 INJECTION CONTROL UNIT 审中-公开
公开(公告)号：US20180156148A1
公开(公告)日：2018-06-07
申请号：US15676180
申请日：2017-08-14
申请人： DENSO CORPORATION
发明人： Toshio NISHIMURA
IPC分类号： F02D41/20 , F02D41/04 , F02D41/30
CPC分类号： F02D41/20 , F02D41/04 , F02D41/30 , F02D2041/2006 , F02D2041/2017 , F02D2041/2024 , F02D2041/2058
摘要： An injection control unit includes a constant-current control unit executing a constant current control to control a current of a coil to be in a predetermined current range lower than a peak current by allowing or interrupting a first voltage applied to the coil after the peak current starting to open an injector is applied to the coil driving the injector, and a high-voltage applying control unit applying a second voltage higher than the first voltage to the coil in a case where a condition that the current of the coil becomes lower than the predetermined current range is met when the constant-current control unit executes the constant current control.

3. 发明申请

US20160363076A1 Internal Combustion Engine Controller 审中-公开
标题翻译：内燃机控制器
公开(公告)号：US20160363076A1
公开(公告)日：2016-12-15
申请号：US15121696
申请日：2015-01-19
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Satoshi KOJIMA , Takuya MAYUZUMI
IPC分类号： F02D41/20 , B60L11/18
CPC分类号： F02D41/20 , B60L11/18 , F02D2041/2006 , F02D2041/201 , F02D2041/2017 , F02D2041/2027 , F02D2041/2034 , F02D2041/2044 , F02D2041/2048 , F02D2041/2065 , F02D2041/2086 , F02D2200/503 , H02M3/156 , H02M3/157
摘要： According to the present invention, by providing control whereby a rising slope or a descending slope of step-up current flowing to a step-up coil is detected, and corrections are made to step-up switching control, the step-up upper and lower limit current values of the step-up circuit can be controlled within intended current threshold values regardless of constant modifications or change in characteristics due to fluctuations of the battery power supply voltage or degradation of step-up circuit elements over time; heat emission by step-up circuit elements can be kept to a minimum; and the step-up recovery time can be adjusted to a constant value regardless of the slope of the step-up current.
摘要翻译：根据本发明，通过提供检测到流过升压线圈的升压电流的上升斜率或下降斜率并进行升压切换控制的校正的控制，升压上下不管由于电池电源电压的波动或升压电路元件随时间的劣化而导致的特性的不断变化或变化，可以将升压电路的极限电流值控制在预期的电流阈值内; 升压电路元件的散热可以保持最小; 并且升压恢复时间可以被调节到恒定值，而不管升压电流的斜率如何。

4. 发明申请

US20160319763A1 ENGINE SYSTEM AND METHOD 审中-公开
标题翻译：发动机系统和方法
公开(公告)号：US20160319763A1
公开(公告)日：2016-11-03
申请号：US15140566
申请日：2016-04-28
申请人： General Electric Company
发明人： Ning SHEN , Matthew K. FERGUSON , Dominick TRAVAGLINI
IPC分类号： F02D41/30 , F02D41/20
CPC分类号： F02D41/20 , F02D2041/2017 , F02D2041/2027 , F02D2041/2034 , F02D2041/2051 , F02D2041/2058
摘要： Various methods and systems are provided for controlling and shaping the current waveform for a solenoid in a fuel injector that has variable impedance.
摘要翻译：提供各种方法和系统来控制和整形具有可变阻抗的燃料喷射器中的螺线管的电流波形。

5. 发明授权

US09228521B2 Fuel injection controller and fuel-injection-control system 有权
标题翻译：燃油喷射控制器和燃油喷射控制系统
公开(公告)号：US09228521B2
公开(公告)日：2016-01-05
申请号：US14070670
申请日：2013-11-04
申请人： DENSO CORPORATION
发明人： Keita Imai
IPC分类号： F02D41/20
CPC分类号： F02D41/20 , F02D2041/2017 , F02D2041/2041 , F02D2041/2044 , F02D2041/2058 , F02D2041/2065
摘要： A fuel injection controller includes a current-increase control portion applying a voltage to the coil so that the coil current is increased to a first target value, and a current-hold control portion applying the voltage to the coil so that the increased coil current is held at the first target value. A maximum electromagnetic attracting force to start a valve opening is referred to as a required valve-opening force. A saturated electromagnetic attracting force by the coil current of the first target value is referred to as a static attracting force. The first target value is established in such a manner that the static attracting force is greater than the required valve opening force.
摘要翻译：燃料喷射控制器包括电流增加控制部分，向线圈施加电压，使得线圈电流增加到第一目标值;以及电流保持控制部分，向线圈施加电压，使得增加的线圈电流为持有第一个目标值。将阀开启的最大电磁吸引力称为所需的开阀力。通过第一目标值的线圈电流的饱和电磁吸引力被称为静态吸引力。第一目标值以静电吸引力大于所需阀开启力的方式建立。

6. 发明授权

US08280613B2 Control apparatus for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：US08280613B2
公开(公告)日：2012-10-02
申请号：US12856034
申请日：2010-08-13
申请人： Masahiro Toyohara , Takashi Okamoto , Tomohiro Ohisa , Yoshikazu Ishii
发明人： Masahiro Toyohara , Takashi Okamoto , Tomohiro Ohisa , Yoshikazu Ishii
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D41/40 , F02D2041/2003 , F02D2041/2017 , F02D2200/0602 , Y02T10/44
摘要： A fuel injection control apparatus for an internal combustion engine which can inject a fuel injection quantity to a fuel injector with accuracy even when the fuel injection quantity is reduced than before is provided. A fuel injection control apparatus of a direct cylinder injection type of internal combustion engine, including a fuel injector which performs fuel injection by supplying a drive current to a solenoid, a fuel pressure sensor which detects fuel pressure supplied to the fuel injector, and operation state detecting means which detects the operation state of the internal combustion engine, comprises current profile changing means 100 which has multiple current profiles of the drive current and changes current profiles based on the operation state and the fuel pressure, valid pulse width calculating means 701 which calculates a valid pulse width for opening and driving the fuel injector, invalid pulse width calculating means 103 which calculates an invalid pulse width, and fuel injector control means which calculates a fuel injection pulse width based on the valid pulse width and the invalid pulse width, and controls the fuel injector based on the fuel injection pulse width, wherein the invalid pulse width calculating means 103 calculates an invalid pulse width corresponding to the current profiles to be changed before the current profiles are changed.
摘要翻译：提供一种用于内燃机的燃料喷射控制装置，其能够即使当燃料喷射量比以前更低时也能够以精确的方式将燃料喷射量喷射到燃料喷射器。一种直列式喷射式内燃机的燃料喷射控制装置，包括通过向螺线管供给驱动电流进行燃料喷射的燃料喷射器，检测供给到燃料喷射器的燃料压力的燃料压力传感器和运转状态检测内燃机的运转状态的检测装置包括：电流分布变更机构100，其具有驱动电流的多个电流分布，并根据运转状态和燃料压力改变电流分布;有效脉冲宽度计算单元701，用于打开和驱动燃料喷射器的有效脉冲宽度，计算无效脉冲宽度的无效脉冲宽度计算装置103以及基于有效脉冲宽度和无效脉冲宽度计算燃料喷射脉冲宽度的燃料喷射器控制装置，以及基于燃料喷射脉冲宽度来控制燃料喷射器，其中，有效脉冲宽度计算装置103计算在当前轮廓改变之前对应于要改变的当前轮廓的无效脉冲宽度。

7. 发明申请

US20100242920A1 Internal Combustion Engine Controller 有权
标题翻译：内燃机控制器
公开(公告)号：US20100242920A1
公开(公告)日：2010-09-30
申请号：US12708379
申请日：2010-02-18
申请人： Chikara OMORI , Ryoichi Oura , Mitsuhiko Watanabe , Takuya Mayuzumi
发明人： Chikara OMORI , Ryoichi Oura , Mitsuhiko Watanabe , Takuya Mayuzumi
IPC分类号： F02M51/00 , G01M15/04
CPC分类号： F02D41/20 , F02D41/221 , F02D2041/2003 , F02D2041/2006 , F02D2041/201 , F02D2041/2017 , F02D2041/2031 , F02D2041/2048 , F02D2041/2058 , Y02T10/40
摘要： There is provided an internal combustion engine controller that realizes a reduction in maximum current value and current regulation without sacrificing boost performance. An internal combustion engine controller 100 comprises: a boost coil 101 configured to boost a voltage VB of a battery power source; a boost switch element 106 configured to switch between causing a current to flow and stopping a current from flowing through the boost coil 101; and a current detection portion 126 configured to detect a current flowing through the boost switch element 106, wherein boost control is effected by repeating the switching of the switch element, the voltage boosted at the boost coil 101 is charged to a boost capacitor 103 via a diode 104, and, during the boost control, the internal combustion engine controller 100 makes the boost switch element 106 stop the current flowing through the boost coil 101 when the detected current reaches a switching stop current value and, after a predetermined set time Tdown has elapsed from the point at which current flow is stopped, makes the boost switch element 106 cause a current to flow through the boost coil 101.
摘要翻译：提供了一种内燃机控制器，其实现了最大电流值和电流调节的降低，而不牺牲升压性能。内燃机控制器100包括：升压线圈101，被配置为升高电池电源的电压VB; 升压开关元件106，被配置为在引起电流流动并停止电流流过升压线圈101之间切换; 以及被配置为检测流过升压开关元件106的电流的电流检测部分126，其中通过重复开关元件的切换来实现升压控制，在升压线圈101处升压的电压经由升压电容器103经由二极管104，并且在升压控制期间，当检测到的电流达到开关停止电流值时，内燃机控制器100使升压开关元件106停止流过升压线圈101的电流，并且在预定设定时间Tdown具有从电流停止的时刻开始，升压开关元件106使电流流过升压线圈101。

8. 发明授权

US07497206B2 Method for operating an internal combustion engine 失效
标题翻译：操作内燃机的方法
公开(公告)号：US07497206B2
公开(公告)日：2009-03-03
申请号：US10587764
申请日：2005-11-17
申请人： Helerson Kemmer
发明人： Helerson Kemmer
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D41/065 , F02D41/126 , F02D41/3809 , F02D2041/2003 , F02D2041/2006 , F02D2041/2017 , F02D2041/389 , F02D2200/0602
摘要： With a method for operating an internal combustion engine with a fuel injector (18) that is opened and closed electrically, a booster capacitor (BK) serving to increase the current intensity when the fuel injector (18) is opened, reliable fuel injection is ensured, even in extreme cases, such as resumption of fuel injection after an overrun condition, and in a starting procedure after a shutoff phase that is accompanied by an increase in pressure in the high pressure fuel system due to the fuel heating up, when booster capacitors are used that were designed for normal operation, by switching the current profile in certain operating states of the internal combustion engine from a standard value to an increased value and/or to a longer duration and, when the certain operating state ends, by resetting it to the standard value and the standard duration.
摘要翻译：通过利用具有电气打开和关闭的燃料喷射器（18）来操作内燃机的方法，当燃料喷射器（18）打开时用于增加电流强度的升压电容器（BK）被确保，并且确保了可靠的燃料喷射即使在极度情况下，例如在超限状态之后恢复燃料喷射，以及在由于燃料加热而伴随着高压燃料系统中的压力增加的截止阶段的启动过程中，当升压电容器被使用，其被设计用于正常操作，通过将内燃机的某些操作状态的当前轮廓从标准值切换到增加的值和/或更长的持续时间，并且当特定操作状态结束时，通过重置它到标准值和标准持续时间。

9. 发明申请

US20080316670A1 Voltage generator 有权
标题翻译：电压发生器
公开(公告)号：US20080316670A1
公开(公告)日：2008-12-25
申请号：US12213148
申请日：2008-06-16
申请人： Yuichiro Matsuura
发明人： Yuichiro Matsuura
IPC分类号： H03K3/00 , H01F7/18 , F02M51/00 , F02D41/20
CPC分类号： F02D41/20 , F02D41/1446 , F02D41/221 , F02D41/40 , F02D2041/2003 , F02D2041/2006 , F02D2041/2017 , F02D2200/023 , F02D2200/0414
摘要： A voltage generator used to generate a voltage for driving a vehicle fuel injector includes a microcomputer, a coil, and a capacitor. The microcomputer calculates an interval at which the fuel injector is driven. When the interval is less than or equal to a predetermined time period, the microcomputer causes a first current to flow through the coil so that the capacitor is charged to a first level by counterelectromotive force produced in the coil. When the interval is greater than the time period, the microcomputer causes a second current less than the first current to flow through the coil so that the capacitor is charged to a second level less than the first level. The fuel injector is driven by the capacitor voltage.
摘要翻译：用于产生用于驱动车辆燃料喷射器的电压的电压发生器包括微计算机，线圈和电容器。微型计算机计算燃料喷射器的驱动间隔。当间隔小于或等于预定时间段时，微计算机使第一电流流过线圈，使得电容器通过线圈中产生的反电动势被充电到第一电平。当间隔大于时间段时，微型计算机使得小于第一电流的第二电流流过线圈，使得电容器被充电到小于第一电平的第二电平。燃油喷射器由电容器电压驱动。

10. 发明授权

US07013876B1 Fuel injector control system 有权
标题翻译：燃油喷射器控制系统
公开(公告)号：US07013876B1
公开(公告)日：2006-03-21
申请号：US11094516
申请日：2005-03-31
申请人： Daniel R. Puckett , W. John Love
发明人： Daniel R. Puckett , W. John Love
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D2041/2006 , F02D2041/2017 , F02D2041/2037 , F02D2041/2041
摘要： A control system for a fuel injector is disclosed. The control system has a valve element movable between a first position and a second position, an armature connected to the valve element, a solenoid configured to move the armature and connected valve element, and a controller in communication the solenoid. The controller is configured to energize the solenoid at a first current level to initiate movement of the valve element from the first position toward the second position, at a second current level less than the first current level during movement of the valve element from the first position toward the second position, at a third current level less than the second current level after the valve element has reached the second position, and at a fourth current level less than the third current level after the valve element has been in the second position for a predetermined period of time.
摘要翻译：公开了一种用于燃料喷射器的控制系统。控制系统具有可在第一位置和第二位置之间移动的阀元件，连接到阀元件的电枢，构造成移动电枢和连接的阀元件的螺线管以及使螺线管连通的控制器。控制器被配置为在第一电流水平下激励螺线管，以在阀元件从第一位置移动期间启动阀元件从第一位置朝向第二位置的移动，第二电流水平小于第一电流水平朝向第二位置，在阀元件已经到达第二位置之后的第三电流水平小于第二电流水平，以及在阀元件已经处于第二位置之后的第四电流水平，预定时间段。

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