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公开(公告)号：US08514541B2
公开(公告)日：2013-08-20
申请号：US13034151
申请日：2011-02-24
IPC分类号： H01H47/00
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：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：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：US20120194961A1
公开(公告)日：2012-08-02
申请号：US13363414
申请日：2012-02-01
IPC分类号： H01H47/00
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：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：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：US07784445B2
公开(公告)日：2010-08-31
申请号：US12257074
申请日：2008-10-23
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D41/221 , F02D2041/2013 , F02D2041/2044 , F02D2041/2058 , F02D2041/2093 , F02D2041/227 , Y02T10/40
摘要： There is proposed a control unit for an internal combustion engine, which comprises a boost circuit, a switching element, a current detecting resistor and a controller and is designed to be actuated such that the boost circuit is used to boost a power source voltage to create a boosted voltage and the controller is used to control the switching element so as to enable the boosted voltage to flow to the injector solenoid coil. This control unit is designed such that, when the boost circuit goes out of order, the injector solenoid coil is excited by making use of the power source voltage without using the boosted voltage and without creating a peak current to thereby generate a first holding current required for opening the injector and a second holding current required for retaining the opened state of the injector, the second holding current being lower in intensity than the first holding current.
摘要翻译： 提出了一种用于内燃机的控制单元，其包括升压电路，开关元件，电流检测电阻器和控制器，并被设计为被致动，使得升压电路用于提高电源电压以产生 升压电压，并且控制器用于控制开关元件，以便使升压的电压能够流到喷射器螺线管线圈。 该控制单元被设计成使得当升压电路不顺序时，通过利用电源电压而不使用升压电压而激励喷射器螺线管线圈，并且不产生峰值电流，从而产生所需的第一保持电流 用于打开喷射器和保持喷射器的打开状态所需的第二保持电流，第二保持电流的强度低于第一保持电流。
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公开(公告)号：US20090079435A1
公开(公告)日：2009-03-26
申请号：US12191618
申请日：2008-08-14
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：US20100242920A1
公开(公告)日：2010-09-30
申请号：US12708379
申请日：2010-02-18
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。
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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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