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11. 发明授权

US5941216A Method for controlling drive of injector for internal combustion engine and apparatus therefor 失效
标题翻译：用于控制用于内燃机的喷射器的驱动的方法及其装置
公开(公告)号：US5941216A
公开(公告)日：1999-08-24
申请号：US977332
申请日：1997-11-24
申请人： Yoshinobu Arakawa
发明人： Yoshinobu Arakawa
IPC分类号： F02D41/20 , F02D41/34 , F02D41/38 , F02M51/06 , F02M51/00
CPC分类号： F02D41/20 , F02M51/061 , F02D2041/2017 , F02D2041/2031 , F02D2041/2034 , F02D2041/2058
摘要： A method for controlling drive of an injector for an internal combustion engine which is capable of reducing a minimum injection quantity available for the control to increase a dynamic range of the injector is disclosed. A voltage across a solenoid coil is stepwise increased when a drive pulse is generated, so that a current fed to the solenoid coil is increased to a level higher than that of the drive current at the time when an injection valve starts port opening operation. Then, the drive current is gradually reduced toward a hold value required to hold the injection valve at a port opening position at a time-based variation ratio less than that of the drive current at the time when the voltage across the solenoid coil is stepwise decreased from a peak value, so that the voltage is stepwise reduced at the time when the drive pulse is extinguished, resulting in the drive current being extinguished.
摘要翻译：公开了一种用于控制内燃机喷射器的驱动方法，该内燃机能够减少可用于控制的最小喷射量以增加喷射器的动态范围。当产生驱动脉冲时，螺线管线圈两端的电压逐步增加，使得馈送到螺线管线圈的电流增加到高于喷射阀开启端口打开操作时驱动电流的电流。然后，将驱动电流逐渐减小到在电磁线圈的电压逐步减小的同时以比驱动电流的时间变化率小的方式将喷射阀保持在开口位置所需的保持值从峰值，使得驱动脉冲熄灭时电压逐步降低，导致驱动电流熄灭。

12. 发明授权

US5216994A Fuel injection system for internal combustion engine 失效
标题翻译：内燃机燃油喷射系统
公开(公告)号：US5216994A
公开(公告)日：1993-06-08
申请号：US861287
申请日：1992-03-31
申请人： Narutoshi Aoki , Yutaka Inaba , Yoshinobu Arakawa , Tsuneaki Endou , Ryuji Satsukawa
发明人： Narutoshi Aoki , Yutaka Inaba , Yoshinobu Arakawa , Tsuneaki Endou , Ryuji Satsukawa
IPC分类号： F02D41/06 , F02D41/20 , F02D41/30 , F02D45/00 , F02M51/06 , H02J9/06
CPC分类号： F02D41/062 , F02D41/20 , H02J9/061 , F02D2041/2006 , F02D2041/2013 , F02D2041/2051 , F02D2041/2058
摘要： A fuel injection system for an internal combustion engine capable of being normally operated while using an output of a generator driven by the internal combustion engine as a power supply therefor. The system includes a switching circuit for switching a driving current fed to an injector from a main power circuit which uses the output of the generator as a power supply therefor. The switching circuit is controlled by a switch control circuit for which a power supply comprises a control power circuit. The control power circuit includes a storage unit for storing electric power therein, so that the storage unit may be act as a power supply when the output of the main power circuit is reduced, to thereby feed the switch control circuit with a power supply voltage of a level equal to or above an operable level. The storage unit is charged by the output of the main power circuit or an output of a generating coil for a control power supply provided in the generator in a manner to be separate from a generating coil for the main power supply.
摘要翻译：一种用于内燃机的燃料喷射系统，其能够在使用由内燃机驱动的发电机的输出作为其供电时正常操作。该系统包括切换电路，用于从使用发电机的输出的主电源电路切换馈送到喷射器的驱动电流作为其电源。开关电路由电源包括控制电源电路的开关控制电路控制。控制电源电路包括用于在其中存储电力的存储单元，使得当主电源电路的输出减小时，存储单元可以用作电源，从而以开关控制电路的电源电压等于或高于可操作水平的水平。存储单元以与主电源的发电线圈分开的方式由主电源电路的输出或设置在发电机中的用于控制电源的发电线圈的输出充电。

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