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公开(公告)号：EP3222840A1
公开(公告)日：2017-09-27
申请号：EP15861043.6
申请日：2015-09-18
发明人： KUSAKABE Ryo , HORII Tomoaki , KIMURA Shingo , ITAYA Takaki , NAGASE Mitsuru , YAMAOKA Shirou
CPC分类号： F02D41/3809 , F02D41/008 , F02D41/401 , F02D41/402 , F02D2041/2017 , F02D2041/2082 , F02D2041/389 , F02D2200/0602
摘要： The objective of the present invention is to correct deviation in the injection amount and changes in the injection timing when the voltage of a high-voltage source for a drive device decreases. This drive device for a fuel injection device is equipped with a function whereby, when the pulse width of the injection pulse is set to an energization time 815 that closes a valve after a drive current has been switched to a maintenance current, the injection pulse width when the voltage of a high-voltage source has decreased is corrected so as to be longer than the injection pulse width when the voltage of the high-voltage source has not decreased, and, when the pulse width of the injection pulse is set to an energization time 804' that closes the valve before the drive current has been switched to the maintenance current, the absolute value of the amount of correction of the injection pulse width is made smaller than when the injection pulse width is set to the energization time 815 that closes the valve after the drive current has been switched to the maintenance current.
摘要翻译： 本发明的目的是当驱动装置的高压源的电压降低时，校正喷射量的偏差和喷射正时的变化。 该燃料喷射装置用驱动装置具备如下功能：在将驱动电流切换为维持电流后，将喷射脉冲的脉冲宽度设定为关闭阀的通电时间815时，喷射脉冲宽度 当高压源的电压已经降低的时候，当高压源的电压没有降低时，其被校正为长于喷射脉冲宽度，并且当喷射脉冲的脉冲宽度被设置为 在将驱动电流切换为维持电流前关闭阀的通电时间804'中，使喷射脉冲宽度的修正量的绝对值比喷射脉冲宽度成为通电时间815时的通电时间815小 驱动电流切换到维护电流后关闭阀门。
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2.发明公开FUEL INJECTION VALVE, CONTROL DEVICE FOR FUEL INJECTION VALVE, AND CONTROL METHOD 审中-公开燃油喷射阀，燃油喷射阀控制装置及控制方法
公开(公告)号：EP3267018A1
公开(公告)日：2018-01-10
申请号：EP16758844.1
申请日：2016-02-26
发明人： ITAYA Takaki , KUSAKABE Ryo , YAMAOKA Shirou , OGURA Kiyotaka
CPC分类号： F02D41/402 , F02D41/02 , F02D41/0255 , F02D41/06 , F02D41/08 , F02D41/20 , F02D41/3023 , F02D41/34 , F02D45/00 , F02P5/152 , Y02T10/44
摘要： The purpose of the present invention is to provide a control means which, with respect to injection control of a fuel injection valve, reduces deviation between an injection quantity of fuel injected by the fuel injection valve and a target value, the deviation being caused due to a pressure in a combustion chamber, as an injection timing in a compression stroke of an engine is retarded.
The present invention pertains to a fuel injection valve that performs a plurality of injections in one engine cycle, and performs control in such a manner that injection pulse signals 603 and 604 are transmitted to a drive circuit, and from the drive circuit for the fuel injection valve that outputs drive current waveforms 605, 606 for fuel injection, the injection pulse signal 612 in the compression stroke when the injection timing is retarded is shortened.摘要翻译： 本发明的目的是提供一种控制装置，该控制装置相对于燃料喷射阀的喷射控制减小由燃料喷射阀喷射的燃料的喷射量与目标值之间的偏差，该偏差是由于 随着发动机的压缩冲程中的喷射正时的延迟，燃烧室内的压力被减缓。 本发明涉及一个燃料喷射阀，其在一个发动机循环中执行多次喷射，并且以喷射脉冲信号603和604被传输到驱动电路并且从用于燃料喷射的驱动电路 输出用于燃料喷射的驱动电流波形605,606的阀，缩短喷射正时延迟时的压缩冲程中的喷射脉冲信号612。
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公开(公告)号：EP3263872A1
公开(公告)日：2018-01-03
申请号：EP16755144.9
申请日：2016-02-01
发明人： KUSAKABE Ryo , IIZUKA Takatoshi , MIYAKE Takao , SUGAYA Masashi , OGURA Kiyotaka , YAMAOKA Shirou
CPC分类号： F02D41/20 , F02D41/26 , F02D41/3064 , F02D41/307 , F02D2041/2041 , F02D2041/2051 , F02D2041/2058 , F02M51/00 , F02M51/06 , F02M51/061 , F02M61/10
摘要： The purpose of the present invention is to provide a drive device that improves the precision of injection quantities by stabilizing the behavior of a valve body 214 under the condition that a valve body reaches a height position lower than a maximum height position and making the injection pulse width and the injection quantity gradient small. The present invention is a drive device for a fuel injection device for use in an internal combustion engine, wherein: the fuel injection device is provided with a valve body 214 that can open and close a fuel passage, a needle 202 that activates an opening and closing valve by transmitting power between itself and the valve body 214, and an electromagnet that comprises a solenoid 205 and a fixed core 207 provided as drive means for the needle 202, and a cylindrical nozzle holder 201 disposed on the outer peripheral side of the needle 202; and the drive device 150 controls a drive current flowing to the coil so as to decrease from the maximum drive current to a first drive current 610 that is lower than the maximum drive current before the valve body 214 reaches the maximum height position so that the valve body 214 reaches a height position lower than the maximum height position.
摘要翻译： 本发明的目的在于提供一种驱动装置，该驱动装置通过在阀体到达比最高位置低的高度位置并且使喷射脉冲变得稳定的状态下稳定阀体214的动作来提高喷射量的精度 宽度和注入量梯度小。 本发明是一种用于内燃机的燃料喷射装置的驱动装置，其中：燃料喷射装置设置有能够打开和关闭燃料通道的阀体214，启动开口的针202以及 通过在其本体与阀体214之间传递动力而开闭阀，以及具有螺线管205和作为针202的驱动单元而设置的固定芯207的电磁铁，以及配置在该针的外周侧的筒状的喷嘴支架201 202; 并且驱动装置150将流过线圈的驱动电流从最大驱动电流减小到低于阀体214达到最大高度位置之前的最大驱动电流的第一驱动电流610，使得阀 主体214到达比最大高度位置低的高度位置。
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