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公开(公告)号：US08649151B2
公开(公告)日：2014-02-11
申请号：US13363414
申请日：2012-02-01
CPC分类号： F02D41/20 , F02D2041/2058
摘要： An injector drive circuit including: a step-up circuit generating a high voltage from a power supply; a first switching device connected to a path between the step-up circuit and an injector; a second switching device connected to the power supply; a third switching device connected between the injector and the ground; and a control unit operating the first, second and third switching device according to a value of current flowing through the injector; wherein the control unit has a unit turning on and off the second switching device in a period during which it turns on and off the first switching device a plurality of times; wherein the control unit has, as set values to control the current flowing through the injector, a first threshold defining a lower current limit, a second threshold defining an upper current limit and a third threshold, larger than the second threshold.
摘要翻译： 一种喷射器驱动电路，包括：从电源产生高电压的升压电路; 连接到升压电路和喷射器之间的路径的第一开关装置; 连接到所述电源的第二开关装置; 连接在喷射器和地面之间的第三开关装置; 以及控制单元，其根据流过所述喷射器的电流的值来操作所述第一，第二和第三开关装置; 其中所述控制单元具有在第一开关装置多次接通和断开的期间内接通和断开所述第二开关装置的单元; 其中，所述控制单元具有作为控制流过所述喷射器的电流的设定值，所述第一阈值定义了大于所述第二阈值的限定较低电流限制的第一阈值，限定上限电流和第三阈值的第二阈值。
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公开(公告)号：US08599530B2
公开(公告)日：2013-12-03
申请号：US13034757
申请日：2011-02-25
申请人： Kohei Onda , Ayumu Hatanaka , Akira Mishima , Takuya Mayuzumi , Fumiaki Nasu , Mitsuhiko Watanabe
发明人： Kohei Onda , Ayumu Hatanaka , Akira Mishima , Takuya Mayuzumi , Fumiaki Nasu , Mitsuhiko Watanabe
IPC分类号： H01H47/22
CPC分类号： F02D41/20 , F02D2041/2003 , F02D2041/2058
摘要： Disclosed is an electromagnetic valve driving circuit capable of reducing a load of a booster circuit. A boost driving FET 202 is connected to a route formed between the booster circuit 100 and a first terminal of an injector 3. A battery-side driving FET 212 and a battery protection diode Db are connected to a route formed between a positive-polarity side of a power supply and the first terminal of the injector 3. A freewheeling diode Df is connected at a first terminal thereof to a portion between the first terminal of the injector 3 and the battery protection diode Db, and at a second terminal thereof to a grounding side of the power supply. An injector downstream-side driving FET 220 is connected to a route formed between the second terminal of the injector 3 and the grounding side of the power supply. In addition to operating the FETs 202, 212, and 220 according to a level of a current which flows through the injector 3, a control circuit 240 activates the battery-side driving FET 212 during a period in which the boost driving FET 202 repeatedly turns on and off a plurality of times.
摘要翻译： 公开了一种能够减小升压电路的负载的电磁阀驱动电路。 升压驱动用FET202与形成在升压电路100和喷射器3的第一端子之间的路径连接。电池侧驱动用FET212和电池保护用二极管Db与形成在正极侧 电源和喷射器3的第一端子。续流二极管Df在其第一端连接到注射器3的第一端子和电池保护二极管Db之间的部分，并且在其第二端子处连接到 接地侧电源。 喷射器下游侧驱动FET220与形成在喷射器3的第二端子与电源的接地侧之间的路径连接。 除了根据流过注射器3的电流的水平来操作FET202,212和220之外，控制电路240在升压驱动FET 202反复转动的时段期间激活电池侧驱动FET 212 多次打开和关闭。
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公开(公告)号：US08561594B2
公开(公告)日：2013-10-22
申请号：US12832814
申请日：2010-07-08
CPC分类号： F02D41/22 , F02D41/20 , F02D41/221 , F02D41/28 , F02D2041/2058 , F02D2041/2065 , F02D2041/2086 , F02D2041/2093 , F02D2041/224 , Y02T10/40
摘要： In an internal combustion engine controller, a clock trouble determination signal from a clock trouble determining circuit that diagnoses any clock input trouble is transmitted in parallel with an abnormality diagnosis signal outputted from an abnormality diagnosing circuit and causes it to be inputted to a trouble/abnormality signal output circuit, and the trouble/abnormality signal output circuit achieves logical summing to output one line of resultant trouble/abnormality output OR signals to a microprocessor (MP). The MP outputs to the trouble/abnormality signal output circuit a trouble/abnormality confirmation input signal, and makes definite any of an abnormal state, a clock trouble state and a normal state based on the result of switching control of the status level of the pertinent trouble/abnormality output OR signal.
摘要翻译： 在内燃机控制器中，来自诊断任何时钟输入故障的时钟故障判定电路的时钟故障判定信号与从异常诊断电路输出的异常诊断信号并行发送，并将其输入到故障/异常 信号输出电路，故障/异常信号输出电路实现逻辑求和，将一行合成故障/异常输出OR信号输出到微处理器（MP）。 MP向故障/异常信号输出电路输出故障/异常确认输入信号，并且基于相关的状态级别的切换控制的结果，确定任何异常状态，时钟故障状态和正常状态 故障/异常输出OR信号。
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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：US20110220069A1
公开(公告)日：2011-09-15
申请号：US13034151
申请日：2011-02-24
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D41/402 , F02D2041/2003 , F02D2041/2006 , F02D2041/201 , F02D2041/2051 , F02D2041/389
摘要： The present invention realizes an injector drive circuit capable of providing high output power of a boost convertor while suppressing increases in size and cost thereof. An injector energizing circuit 200 includes an FET 2 which applies a high voltage 100a generated by a boost convertor 100 to an injection valve 20. The boost convertor 100 includes an input side capacitor 103, a boosting FET 105, a boost coil 104, a boost diode 106, and FETs 108 and 109 provided in association with a negative pole of an output side capacitor 107. During a period in which the high voltage 100a is applied to the injection valve 20, a gate signal 108a of the FET 108 is turned ON and a gate signal 109a of the FET 109 is turned OFF. Consequently, the boosting FET 105 performs a switching operation to turn OFF the gate signal 108a of the FET 108 and turn ON the gate signal 109a of the FET 109 during a period for charging into the output side capacitor 107. Thus, energy required for boosting can be reduced and an improvement in output is enabled.
摘要翻译： 本发明实现了一种喷射器驱动电路，其能够在抑制升压转换器的大小和成本的同时提供高输出功率。 喷射器激励电路200包括将由升压转换器100产生的高电压100a施加到喷射阀20的FET2。升压转换器100包括输入侧电容器103，升压FET 105，升压线圈104，升压 二极管106和与输出侧电容器107的负极相关联地设置的FET 108和109.在将高电压100a施加到喷射阀20的期间中，FET 108的栅极信号108a导通 并且FET109的栅极信号109a断开。 因此，升压FET 105进行切换动作，使FET108的栅极信号108a截止，并在对输出侧电容器107充电的期间内导通FET109的栅极信号109a。因此，升压所需的能量 可以减少输出的改善。
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公开(公告)号：US07987044B2
公开(公告)日：2011-07-26
申请号：US12341197
申请日：2008-12-22
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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公开(公告)号：US07924572B2
公开(公告)日：2011-04-12
申请号：US12039472
申请日：2008-02-28
申请人： Takuya Mayuzumi , Shuji Eguchi , Masahiro Sasaki , Kiyoomi Kadoya
发明人： Takuya Mayuzumi , Shuji Eguchi , Masahiro Sasaki , Kiyoomi Kadoya
IPC分类号： H05K5/00
CPC分类号： H05K3/284 , B29C45/14639 , H05K1/0215 , H05K3/0061 , H05K3/321 , H05K3/3447 , H05K5/0034 , H05K5/0082 , H05K7/20854 , H05K2201/09054 , H05K2201/10189 , H05K2201/2036 , Y10T29/49146
摘要： A module comprises a metallic terminal pins for connection and a circuit board with electronic components mounted thereon, a circuit board connecting side of the connector. The electronic components and the circuit board with the electronic components mounted thereon are encapsulated with the same resin. A metallic base is united to the module to obtain an electric conduction between the metallic base and the circuit board.
摘要翻译： 模块包括用于连接的金属端子销和安装有电子部件的电路板，连接器的电路板连接侧。 电子部件和安装有电子部件的电路板用相同的树脂封装。 将金属基体与模块结合，以在金属基座和电路板之间获得电导通。
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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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