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    • 1. 发明授权
    • High-pressure fuel pump drive circuit for engine
    • 发动机高压燃油泵驱动电路
    • US07881035B2
    • 2011-02-01
    • US11833677
    • 2007-08-03
    • Nobuyuki TakahashiTakashi OkamotoTakuya Mayuzumi
    • Nobuyuki TakahashiTakashi OkamotoTakuya Mayuzumi
    • H01H9/00
    • F02D41/20F02D41/406F02D2041/2041F02M59/466F02M2037/085F04B49/06F04B49/10H01F7/1811
    • There is provided a high-pressure fuel pump drive circuit for manipulating the electric current to be passed to a solenoid coil for controlling a high-pressure pump. This circuit is characterized in that a first switching element, the solenoid coil and a second switching element are connected in series with each other in a rout from a source voltage side to the ground side, that a flywheel diode for passing electric current to a power source is disposed parallel with the solenoid and with the first switching element, and that a Zener diode connected with the power source is disposed parallel with the second switching element, wherein a counter electromotive force to be developed at the opposite ends of solenoid coil on the occasion when the second switching element is changed from ON to OFF is consumed by the flywheel diode provided that the first switching element is in a state of ON, and the counter electromotive force is more rapidly consumed by the Zener diode provided that the first switching element is turned OFF.
    • 提供了用于操纵要通过到用于控制高压泵的螺线管线圈的电流的高压燃料泵驱动电路。 该电路的特征在于,第一开关元件,螺线管线圈和第二开关元件在从源极电压侧到接地侧的路径中彼此串联连接,用于将电流传递到电力的续流二极管 源极与螺线管和第一开关元件平行设置,并且与电源连接的齐纳二极管与第二开关元件平行设置,其中在电磁线圈的相对端处形成的反电动势 只要第一开关元件处于ON状态,并且反电动势被齐纳二极管更快地消耗,则由续流二极管消耗第二开关元件由ON变为OFF的情况,只要第一开关元件 关闭。
    • 2. 发明申请
    • High-Pressure Fuel Pump Drive Circuit for Engine
    • 发动机高压燃油泵驱动电路
    • US20080030917A1
    • 2008-02-07
    • US11833677
    • 2007-08-03
    • Nobuyuki TakahashiTakashi OkamotoTakuya Mayuzumi
    • Nobuyuki TakahashiTakashi OkamotoTakuya Mayuzumi
    • H01H47/00
    • F02D41/20F02D41/406F02D2041/2041F02M59/466F02M2037/085F04B49/06F04B49/10H01F7/1811
    • There is provided a high-pressure fuel pump drive circuit for manipulating the electric current to be passed to a solenoid coil for controlling a high-pressure pump. This circuit is characterized in that a first switching element, the solenoid coil and a second switching element are connected in series with each other in a rout from a source voltage side to the ground side, that a flywheel diode for passing electric current to a power source is disposed parallel with the solenoid and with the first switching element, and that a Zener diode connected with the power source is disposed parallel with the second switching element, wherein a counter electromotive force to be developed at the opposite ends of solenoid coil on the occasion when the second switching element is changed from ON to OFF is consumed by the flywheel diode provided that the first switching element is in a state of ON, and the counter electromotive force is more rapidly consumed by the Zener diode provided that the first switching element is turned OFF.
    • 提供了用于操纵要通过到用于控制高压泵的螺线管线圈的电流的高压燃料泵驱动电路。 该电路的特征在于,第一开关元件,螺线管线圈和第二开关元件在从源极电压侧到接地侧的路径中彼此串联连接,用于将电流传递到电力的续流二极管 源极与螺线管和第一开关元件平行设置,并且与电源连接的齐纳二极管与第二开关元件平行设置,其中在电磁线圈的相对端处形成的反电动势 只要第一开关元件处于ON状态,并且反电动势被齐纳二极管更快地消耗,则由续流二极管消耗第二开关元件由ON变为OFF的情况,只要第一开关元件 关闭。
    • 6. 发明授权
    • Internal combustion engine controller
    • 内燃机控制器
    • US08978625B2
    • 2015-03-17
    • US13117554
    • 2011-05-27
    • Mamoru OkudaTakuya MayuzumiFumiaki NasuChikara Oomori
    • Mamoru OkudaTakuya MayuzumiFumiaki NasuChikara Oomori
    • F02M51/00F02D41/20
    • F02D41/20F02D2041/2003F02D2041/2051F02D2041/2058
    • At the time of drop of an injector current of an internal combustion engine controller, the drop is performed quickly while heat generation of a drive circuit is suppressed, and valve closing response speed of the injector is enhanced. The internal combustion engine controller includes a drive circuit which drives an injector current, and a boost circuit which boosts a battery voltage, and includes a peak current path for guiding a boost voltage of the boost circuit to an upstream side of the injector via a boost side switching element and a boost side protection diode, a holding current path for guiding the battery voltage to the upstream side of the injector via a battery side switching element and a battery side protection diode, a ground current path which is connected to a power supply ground from a downstream side of the injector via a downstream side switching element, and a regenerating circuit which allows the boost circuit to regenerate electric energy of the injector from the downstream side of the injector via a current regenerating diode, wherein the regenerating path is provided with a voltage regulating section in series with the current regenerating diode, and the drive circuit controls drive of the switching element.
    • 在内燃机控制器的喷射器电流下降时,驱动电路的发热被抑制而快速地进行下降,并且提高了喷射器的关闭响应速度。 内燃机控制器包括驱动喷射器电流的驱动电路和升高电池电压的升压电路,并且包括用于通过升压将升压电路的升压电压引导到喷射器的上游侧的峰值电流路径 保护电流路径,用于经由电池侧开关元件和电池侧保护二极管将电池电压引导到喷射器的上游侧;接地电流路径,连接到电源 经由下游侧开关元件从注射器的下游侧接地;以及再生电路,其允许升压电路经由电流再生二极管从喷射器的下游侧再生喷射器的电能,其中提供再生路径 具有与电流再生二极管串联的电压调节部分,驱动电路控制s的驱动 女巫元素
    • 8. 发明申请
    • Load Drive Circuit
    • 负载驱动电路
    • US20090079435A1
    • 2009-03-26
    • US12191618
    • 2008-08-14
    • Hisayoshi NAKATAMasahiro SasakiTakuya MayuzumiMitsuhiko WatanabeRyoichi Oura
    • Hisayoshi NAKATAMasahiro SasakiTakuya MayuzumiMitsuhiko WatanabeRyoichi Oura
    • G01R31/28H02H7/08
    • H02M3/156
    • 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.
    • 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。