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公开(公告)号：US08240290B2
公开(公告)日：2012-08-14
申请号：US12617327
申请日：2009-11-12
CPC分类号： F02D41/3836 , F02D41/221 , F02D41/3854 , F02D41/3863 , F02D2200/0602 , F02D2250/31
摘要： In a control apparatus for an internal combustion engine, when a fuel pressure detected by the fuel pressure detecting unit is not smaller than a threshold P_a, the value opening time duration of a injector is increased to a value larger than its normal value, such control as to stop fuel injection from the injector is inhibited, the low pressure fuel pump is stopped, thus quickly lowering the fuel pressure. After the fuel pressure is lowered, the valve opening time duration of the injector is returned to the normal value, and a discharge quantity of the low pressure fuel pump is changed on the basis of a difference between the fuel pressure detected by the fuel pressure detecting unit and a target fuel pressure.
摘要翻译： 在用于内燃机的控制装置中，当由燃料压力检测单元检测到的燃料压力不小于阈值P_a时，喷射器的开启持续时间增加到大于其正常值的值，这样的控制 为了停止来自喷射器的燃料喷射被抑制，低压燃料泵停止，从而迅速降低燃料压力。 在燃料压力降低之后，喷射器的开阀持续时间恢复到正常值，并且基于由燃料压力检测检测到的燃料压力之间的差异来改变低压燃料泵的排出量 单位和目标燃油压力。
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公开(公告)号：US20100122690A1
公开(公告)日：2010-05-20
申请号：US12617327
申请日：2009-11-12
CPC分类号： F02D41/3836 , F02D41/221 , F02D41/3854 , F02D41/3863 , F02D2200/0602 , F02D2250/31
摘要： In a control apparatus for an internal combustion engine, when a fuel pressure detected by the fuel pressure detecting unit is not smaller than a threshold P_a, the value opening time duration of a injector is increased to a value larger than its normal value, such control as to stop fuel injection from the injector is inhibited, the low pressure fuel pump is stopped, thus quickly lowering the fuel pressure. After the fuel pressure is lowered, the valve opening time duration of the injector is returned to the normal value, and a discharge quantity of the low pressure fuel pump is changed on the basis of a difference between the fuel pressure detected by the fuel pressure detecting unit and a target fuel pressure.
摘要翻译： 在用于内燃机的控制装置中，当由燃料压力检测单元检测到的燃料压力不小于阈值P_a时，喷射器的开启持续时间增加到大于其正常值的值，这样的控制 为了停止来自喷射器的燃料喷射被抑制，低压燃料泵停止，从而迅速降低燃料压力。 在燃料压力降低之后，喷射器的开阀持续时间恢复到正常值，并且基于由燃料压力检测检测到的燃料压力之间的差异来改变低压燃料泵的排出量 单位和目标燃油压力。
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公开(公告)号：US08447498B2
公开(公告)日：2013-05-21
申请号：US13201535
申请日：2010-01-25
申请人： Masahiro Toyohara , Minoru Okubo , Takao Miyake , Tomohiro Ohisa
发明人： Masahiro Toyohara , Minoru Okubo , Takao Miyake , Tomohiro Ohisa
IPC分类号： F02P5/15
CPC分类号： F02D37/02 , F02D31/008 , F02D41/0097 , F02D41/062 , F02P3/02 , F02P5/06 , F02P5/1506 , Y02T10/46
摘要： Even when an engine is started in various combustion states, an excessive increase in engine speed at the start of the engine is suppressed without an influence of the combustion states and with an excellent responsiveness. Ignition timing (or a combustion injection amount) at the start of an internal combustion engine is corrected in accordance with a crank angle cycle ratio which is a ratio of a combustion period crank angle cycle and a reference crank angle cycle.
摘要翻译： 即使在各种燃烧状态下起动发动机的情况下，抑制发动机起动时的发动机转速的过度增加而不会受到燃烧状态的影响和良好的响应性。 根据作为燃烧期曲柄角循环与基准曲柄角周期的比的曲柄角循环比率来校正内燃机起动时的点火正时（或燃烧喷射量）。
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公开(公告)号：US20110301827A1
公开(公告)日：2011-12-08
申请号：US13201535
申请日：2010-01-25
申请人： Masahiro Toyohara , Minoru Okubo , Takao Miyake , Tomohiro Ohisa
发明人： Masahiro Toyohara , Minoru Okubo , Takao Miyake , Tomohiro Ohisa
IPC分类号： F02D41/04
CPC分类号： F02D37/02 , F02D31/008 , F02D41/0097 , F02D41/062 , F02P3/02 , F02P5/06 , F02P5/1506 , Y02T10/46
摘要： Even when an engine is started in various combustion states, an excessive increase in engine speed at the start of the engine is suppressed without an influence of the combustion states and with an excellent responsiveness. Ignition timing (or a combustion injection amount) at the start of an internal combustion engine is corrected in accordance with a crank angle cycle ratio which is a ratio of a combustion period crank angle cycle and a reference crank angle cycle.
摘要翻译： 即使在各种燃烧状态下起动发动机的情况下，抑制发动机起动时的发动机转速的过度增加而不会受到燃烧状态的影响和良好的响应性。 根据作为燃烧期曲柄角循环与基准曲柄角周期的比的曲柄角循环比率来校正内燃机起动时的点火正时（或燃烧喷射量）。
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公开(公告)号：US08280613B2
公开(公告)日：2012-10-02
申请号：US12856034
申请日：2010-08-13
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。
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公开(公告)号：US07789073B2
公开(公告)日：2010-09-07
申请号：US12339496
申请日：2008-12-19
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D2041/2044 , F02D2041/2058
摘要： A fuel injection control apparatus is capable of reducing a minimum quantity of fuel injection without reducing a maximum quantity of injection. To open a fuel injector valve, a driving circuit supplies an electric current from a high-voltage power supply to the fuel injector. Then, after valve opening, the high-voltage power supply is switched to a low-voltage power supply, and an open state of the valve is retained. For opening the valve of the fuel injector, a microcomputer, after supplying current from the high-voltage power supply to the injector, discharges the current rapidly for a decrease below a first current level at which the open state of the valve cannot be retained. The microcomputer then controls the supply current to the injector so as to supply a current at a second current level at which the open state of the valve can be retained.
摘要翻译： 燃料喷射控制装置能够在不减少最大喷射量的情况下减少燃料喷射的最小量。 为了打开燃料喷射阀，驱动电路将来自高压电源的电流提供给燃料喷射器。 然后，在阀打开之后，将高压电源切换到低压电源，并且保持阀的打开状态。 为了打开燃料喷射器的阀，微型计算机在从高压电源向喷射器提供电流之后，迅速地将电流放电到低于不能保持阀的打开状态的第一电流水平的下降。 微型计算机然后控制到喷射器的供应电流，以便以可以保持阀的打开状态的第二电流水平提供电流。
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公开(公告)号：US20100263632A1
公开(公告)日：2010-10-21
申请号：US12763732
申请日：2010-04-20
申请人： Takao MIYAKE , Masahiro Toyohara , Yasunaga Hamada
发明人： Takao MIYAKE , Masahiro Toyohara , Yasunaga Hamada
CPC分类号： F02D41/20 , F02D2041/1431 , F02D2041/2044 , F02D2041/2055 , F02D2041/2058
摘要： Even when a current waveform and a current value of a current which is supplied to an injector is changed in order to extend a dynamic range of the injector, fuel injection quantity precision is maintained and enhanced. A correction time for correcting an opening/closing delay of the aforementioned injector is variably set by a valve response delay time calculating unit 103 and a selector unit 106 in accordance with change of setting of the current waveform and the current value.
摘要翻译： 即使为了延长喷射器的动态范围而改变提供给喷射器的电流的电流波形和电流值，也能够维持并提高燃料喷射量的精度。 根据电流波形和当前值的设定的变化，由阀响应延迟时间计算单元103和选择器单元106可变地设置校正上述喷射器的打开/关闭延迟的校正时间。
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公开(公告)号：US07778765B2
公开(公告)日：2010-08-17
申请号：US12339464
申请日：2008-12-19
CPC分类号： F02D41/20 , F02D2041/2003 , F02D2041/2044 , F02D2200/0602
摘要： A fuel injection control apparatus includes a computing unit that calculates a pulse width for a pulse signal which drives the valve of a fuel injector, based on the operational state of the internal combustion engine and fuel pressure detected by a fuel pressure sensor. After a valve-opening command has turned on and a high valve-opening current has been supplied to open the fuel injector valve, a fuel injector driving signal waveform command unit discharges the current and supplies a small hold current Ih2 to maintain the injector's valve-open state. After the elapse of a predetermined rapid-discharge starting time from the turn-on of the valve-opening command, the fuel injector driving signal waveform command unit rapidly discharges the current until the hold current Ih2 has been reached.
摘要翻译： 燃料喷射控制装置包括计算单元，其基于内燃机的操作状态和由燃料压力传感器检测的燃料压力来计算驱动燃料喷射器的阀的脉冲信号的脉冲宽度。 在开阀命令已经打开并且已经提供高阀门打开电流以打开燃料喷射阀之后，燃料喷射器驱动信号波形指令单元对电流进行放电并提供小的保持电流Ih2以保持喷射器的阀 - 打开状态。 在从打开开阀指令的开启经过预定的快速放电开始时间之后，燃料喷射器驱动信号波形指令单元迅速地放电，直到达到保持电流Ih2。
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公开(公告)号：US20090177369A1
公开(公告)日：2009-07-09
申请号：US12339496
申请日：2008-12-19
CPC分类号： F02D41/20 , F02D2041/2044 , F02D2041/2058
摘要： To provide a fuel injection control apparatus capable of reducing the minimum quantity of fuel injection without reducing the maximum quantity of injection.For fuel injector valve opening, a driving circuit 56 supplies an electric current from a high-voltage power supply VH to the fuel injector 53, then after valve opening, switches the high-voltage power supply VH to a low-voltage power supply LV, and retains the open state of the valve. A microcomputer 57 is adapted such that for opening the valve of the fuel injector, the microcomputer, after supplying the current from the high-voltage power supply to the injector 53, discharges the current rapidly for a decrease below a first current level Ihold1 at which the open state of the valve cannot be retained, and then controls the supply current to the injector 53 so as to supply a current of a second current level Ihold2 at which the open state of the valve can be retained.
摘要翻译： 提供能够在不减少最大喷射量的情况下减少燃料喷射量的最小量的燃料喷射控制装置。 对于燃料喷射阀打开，驱动电路56将电流从高压电源VH供给到燃料喷射器53，然后在阀打开之后，将高压电源VH切换到低压电源LV， 并保持阀的打开状态。 微型计算机57适于打开燃料喷射器的阀，微型计算机在将来自高压电源的电流提供给喷射器53之后，迅速地将电流放电到低于第一电流水平Ihold1， 阀的打开状态不能被保持，然后控制到喷射器53的供应电流，以便提供可以保持阀的打开状态的第二电流水平Ihold2的电流。
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公开(公告)号：US20090159047A1
公开(公告)日：2009-06-25
申请号：US12341197
申请日：2008-12-22
IPC分类号： F02D41/30
CPC分类号： F02D41/221 , F02D31/009 , F02D41/20 , F02D41/3836 , F02D2041/2003 , F02D2041/2048 , F02D2041/2065 , F02D2041/228 , F02D2200/503 , F02D2250/31 , Y02T10/40
摘要： A control device 10 for an internal combustion engine 80 includes an injector drive circuit 90 that drives an injector 30 that injects fuel and a temperature detection device that at least detects timing when a temperature condition that the temperature of the injector drive circuit 90 exceeds predetermined temperature is satisfied. The control device 10 includes a heat-generation-suppression control means 104 that performs control for suppressing the heat generation of the injector drive circuit 90. The heat-generation-suppression control means 104 selects, on the basis of a driving state of a vehicle, at least one parameter among an electric current applied to the injector, fuel pressure supplied to the injector 30, the number of revolutions of the internal combustion engine, and voltage from a battery to be boosted and performs control for limiting a value of the selected parameter on the basis of the timing.
摘要翻译： 用于内燃机80的控制装置10包括驱动喷射燃料的喷射器30的喷射器驱动电路90和至少检测喷射器驱动电路90的温度超过规定温度的温度的定时的温度检测装置 满意 控制装置10包括执行用于抑制喷射器驱动电路90的发热的控制的发热抑制控制装置104.发热抑制控制装置104基于车辆的行驶状态 施加到喷射器的电流中的至少一个参数，提供给喷射器30的燃料压力，内燃机的转数和来自待升压的电池的电压进行控制，以限制所选择的 参数在时间的基础上。
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