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公开(公告)号：US20110141642A1
公开(公告)日：2011-06-16
申请号：US12740100
申请日：2009-07-17
IPC分类号： H02H9/02
CPC分类号： F02D41/20 , F02D41/22 , F02D2041/2058 , F02D2041/2093 , H03K17/0822 , H03K17/18 , Y02T10/40
摘要： A layer short-circuit of a switch element such as a FET included in an electromagnetic load circuit is detected to accurately perform a failure diagnosis of the electromagnetic load circuit. A failure diagnosis circuit 101 is provided which detects a layer short-circuit in which a high-side switch element, a low-side switch element, or an electromagnetic load itself short-circuits with a power supply voltage terminal or a ground in a state of having a predetermined impedance to perform a failure diagnosis.
摘要翻译： 检测包括在电磁负载电路中的诸如FET的开关元件的层短路以精确地执行电磁负载电路的故障诊断。 提供故障诊断电路101，其检测高侧开关元件，低侧开关元件或电磁负载本身在状态下与电源电压端子或接地短路的层短路 具有预定阻抗以执行故障诊断。
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公开(公告)号：US08548641B2
公开(公告)日：2013-10-01
申请号：US12191618
申请日：2008-08-14
IPC分类号： G05D1/00
CPC分类号： H02M3/156
摘要： According to the present invention, the operation of a diagnostic circuit within a load drive circuit, which has been built into an electronic control device, is checked without modifying the electronic control device or the like. The load drive circuit, which drives a load such as a solenoid using a DC power supply as a power supply, includes a drive circuit and a diagnostic circuit which is independently provided within the drive circuit. Upon input of a drive-stop signal from a control circuit that controls the drive circuit, the operation of at least the drive circuit stops, so that whether the diagnostic circuit, which diagnoses the condition of the load, is normally operating or not is checked in a condition in which the load drive circuit has been built into the electronic control device.
摘要翻译： 根据本发明，在不改变电子控制装置等的情况下，检查内置于电子控制装置中的负载驱动电路内的诊断电路的动作。 使用直流电源驱动诸如螺线管的负载作为电源的负载驱动电路包括独立地设置在驱动电路内的驱动电路和诊断电路。 在从控制驱动电路的控制电路输入驱动停止信号时，至少检测驱动电路的动作停止，检查诊断负载状态的诊断电路是否正常运转 在负载驱动电路已经被内置到电子控制装置中的状态下。
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公开(公告)号：US08144447B2
公开(公告)日：2012-03-27
申请号：US12355252
申请日：2009-01-16
CPC分类号： F02D41/20 , H01F7/1844
摘要： An internal combustion engine controller comprises a current or voltage source for controlling a potential at a diagnosis position in order to ensure a high-precision fault diagnosis, even if the drive cycle of the electromagnetic load (such as a fuel injector), in the internal combustion engine is shorted. Diagnosis timing is optimally set or the number of determinations for averaging is increased in order to ensure high-precision fault diagnosis without being influenced by unexpected disturbance such as noises. In fault diagnosis of a regeneration circuit into a booster circuit, either an input/output voltage or the regeneration current of a driver of the electromagnetic load is detected.
摘要翻译： 内燃机控制器包括用于控制诊断位置处的电位的电流或电压源，以便即使在内部的电磁负载（例如燃料喷射器）的驱动循环也能确保高精度故障诊断 内燃机短路。 为了确保高精度的故障诊断而不受意外的干扰（如噪声）的影响，诊断定时被最佳地设定或平均的确定次数增加。 在再生电路进入升压电路的故障诊断中，检测电磁负载的驱动器的输入/输出电压或再生电流。
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公开(公告)号：US08081498B2
公开(公告)日：2011-12-20
申请号：US12372355
申请日：2009-02-17
CPC分类号： F02D41/20 , F02D2041/2006 , F02D2041/2017
摘要： An internal combustion engine controller comprises a booster coil connected to a battery and a booster capacitor. A switch element is connected to the booster coil to control the passage of current through the booster coil and an interruption of the current. The booster capacitor accumulates electrical energy generated with an inductance of the booster coil at the time of the interruption of the passage of the current. A booster control circuit carries out control in a constant boost switching cycle so as to pass the current through the booster coil and the switch element until the current reaches a preset switching stop threshold value and then interrupt the current to charge the energy generated with the inductance of the booster coil into the booster capacitor. The booster control circuit is configured to ensure a minimum time period for the booster capacitor-charging of the energy within the boost switching cycle.
摘要翻译： 内燃机控制器包括连接到电池的升压线圈和升压电容器。 开关元件连接到升压线圈以控制通过升压线圈的电流的通过和电流的中断。 升压电容器在电流通过中断时累积用升压线圈的电感产生的电能。 升压控制电路在恒定的升压开关周期中进行控制，以使电流通过升压线圈和开关元件，直到电流达到预设的开关停止阈值，然后中断电流以对由电感产生的能量进行充电 的升压线圈进入升压电容器。 升压器控制电路被配置为确保升压电容器对升压开关周期内的能量充电的最小时间周期。
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公开(公告)号：US07578284B2
公开(公告)日：2009-08-25
申请号：US11958096
申请日：2007-12-17
CPC分类号： F02D41/20 , F02D41/221 , F02D2041/2003 , F02D2041/2041 , F02D2041/2058 , F02D2041/2082 , F02D2041/2086
摘要： An internal combustion engine controller has: a voltage booster circuit for boosting a battery power source; a booster side driver element for flowing a current through the injectors by using the boosted voltage; a battery side driver element disposed in parallel with the booster side driver element to flow a current through the injectors by using the battery power source; a first downstream side driver element provided by controlling currents flowing through the injectors; current regeneration diodes for flowing currents from the downstream side to the upstream side of the injectors; a booster side current detector resistor for detecting currents flowing via the current regeneration diodes; and an injector control circuit for controlling and driving the booster side driver element, battery side driver element and first downstream side driver element.
摘要翻译： 内燃机控制器具有：用于升压电池电源的升压电路; 用于通过使用所述升压电压使电流流过所述喷射器的增压器侧驱动元件; 电池侧驱动器元件，其与所述增压器侧驱动元件并联设置，以通过使用所述电池电源使电流流过所述喷射器; 通过控制流过喷射器的电流而提供的第一下游侧驱动元件; 用于从喷射器的下游侧到上游侧的流动的电流再生二极管; 用于检测经由所述电流再生二极管流过的电流的升压器侧电流检测器电阻器; 以及用于控制和驱动增压器侧驱动元件，电池侧驱动元件和第一下游侧驱动元件的喷射器控制电路。
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公开(公告)号：US20090184576A1
公开(公告)日：2009-07-23
申请号：US12355252
申请日：2009-01-16
IPC分类号： B60L1/00
CPC分类号： F02D41/20 , H01F7/1844
摘要： An internal combustion engine controller that drives an electromagnetic load is provided for improving a fault diagnosis precision of the electromagnetic load and stabilizing a high-speed control without influence of noises even if the drive cycle of the electromagnetic load is short. The internal combustion engine controller has high reliability in a fault diagnosis for a circuit to regenerate counter electromotive energy. The internal combustion engine controller comprises a current source or a voltage source for controlling a potential of the diagnosis position in order to ensure a high-precision fault diagnosis even if the drive cycle of the electromagnetic load, such as the fuel injector, in the internal combustion engine is shortened. Diagnosis timing is optimally set or the number of determinations for averaging is increased in order to ensure the high-precision fault diagnosis without being influenced by unexpected disturbance such as noises. In the fault diagnosis of the regeneration circuit into the booster circuit, an input/output voltage or the regeneration current of a driving switching element of the electromagnetic load is detected.
摘要翻译： 提供驱动电磁负载的内燃机控制器，用于提高电磁负载的故障诊断精度，并且即使电磁负载的驱动周期短，也不影响噪声来稳定高速控制。 内燃机控制器在用于再生反电动势的电路的故障诊断中具有高可靠性。 内燃机控制器包括用于控制诊断位置的电位的电流源或电压源，以便即使在内部的电磁负载（例如燃料喷射器）的驱动循环也能确保高精度故障诊断 内燃机缩短。 为了确保高精度的故障诊断而不受意外的干扰（如噪声）的影响，诊断定时被最佳设置或者平均的确定次数增加。 在升压电路的再生电路的故障诊断中，检测电磁负载的驱动开关元件的输入输出电压或再生电流。
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17.发明授权公开(公告)号：US08783230B2
公开(公告)日：2014-07-22
申请号：US13034195
申请日：2011-02-24
CPC分类号： F02D41/30 , F02D41/20 , F02D41/402 , F02D2041/2003 , F02D2041/2013 , F02D2041/2055 , F02D2200/503 , H03K17/64
摘要： Disclosed is a fuel injection system that is used with an internal-combustion engine to reliably perform a requested fuel injection operation a requested number of times even when a boost voltage is lowered. The fuel injection system monitors the boost voltage immediately before the start of fuel injection, and varies a valve open time in accordance with the monitored boost voltage. Even when the boost voltage is lowered, the fuel injection system performs a fuel injection operation the requested number of times.
摘要翻译： 公开了一种与内燃机一起使用的燃料喷射系统，即使当升压电压降低时也可以可靠地执行要求的燃料喷射运行所需的次数。 燃料喷射系统在燃料喷射开始之前监视升压电压，并且根据所监视的升压电压来改变阀打开时间。 即使升压电压降低，燃料喷射系统也进行所需次数的燃料喷射动作。
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18.发明申请公开(公告)号：US20110220067A1
公开(公告)日：2011-09-15
申请号：US13034195
申请日：2011-02-24
CPC分类号： F02D41/30 , F02D41/20 , F02D41/402 , F02D2041/2003 , F02D2041/2013 , F02D2041/2055 , F02D2200/503 , H03K17/64
摘要： Disclosed is a fuel injection system that is used with an internal-combustion engine to reliably perform a requested fuel injection operation a requested number of times even when a boost voltage is lowered. The fuel injection system monitors the boost voltage immediately before the start of fuel injection, and varies a valve open time in accordance with the monitored boost voltage. Even when the boost voltage is lowered, the fuel injection system performs a fuel injection operation the requested number of times.
摘要翻译： 公开了一种与内燃机一起使用的燃料喷射系统，即使当升压电压降低时也可以可靠地执行要求的燃料喷射运行所需的次数。 燃料喷射系统在燃料喷射开始之前监视升压电压，并且根据所监视的升压电压来改变阀打开时间。 即使升压电压降低，燃料喷射系统也进行所需次数的燃料喷射动作。
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公开(公告)号：US20090177367A1
公开(公告)日：2009-07-09
申请号：US12339464
申请日：2008-12-19
IPC分类号： F02D41/30
CPC分类号： F02D41/20 , F02D2041/2003 , F02D2041/2044 , F02D2200/0602
摘要： Disclosed herein is a fuel injection control apparatus for an internal combustion engine, capable of opening and closing accurately a valve of the fuel injector even when the quantity of injection required is small and a pulse duration of a driving pulse signal to the fuel injector is short.A fuel injector pulse width computing unit 9a calculates, from the operational state of the internal combustion engine and the fuel pressure detected by a fuel pressure sensor, pulse width of a pulse signal which drives the valve of the fuel injector. After an valve-opening command has turned on and a high valve-opening current for opening the fuel injector valve has been supplied from a high-voltage source to the fuel injector, a fuel injector driving signal waveform command unit 9b discharges the current and supplies from a low-voltage source a small hold current Ih2 that allows the fuel injector to maintain the valve-open state. Also, during the time from supply of the valve-opening current to an arrival at the value of the hold current Ih2, after the elapse of a previously assigned rapid-discharge starting time Tsy from the turn-on of the valve-opening command, the fuel injector driving signal waveform command unit 9b rapidly discharges the current until the hold current Ih2 has been reached.
摘要翻译： 本文公开了一种用于内燃机的燃料喷射控制装置，即使当所需喷射量小并且到燃料喷射器的驱动脉冲信号的脉冲持续时间短时，也能够精确地打开和关闭燃料喷射器的阀 。 燃料喷射器脉冲宽度计算单元9a从内燃机的操作状态和由燃料压力传感器检测到的燃料压力计算驱动燃料喷射器的阀的脉冲信号的脉冲宽度。 在阀开启指令已经打开并且用于打开燃料喷射阀的高阀打开电流已经从高压源提供给燃料喷射器之后，燃料喷射器驱动信号波形指令单元9b将电流和电源 来自低压源的小保持电流Ih2，允许燃料喷射器保持阀打开状态。 此外，在从开阀电流的供给到保持电流Ih2的值的时间期间，在开阀指令的接通之后经过预先指定的快速放电开始时间Tsy之后， 燃料喷射器驱动信号波形指令单元9b快速放电，直到达到保持电流Ih2。
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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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