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公开(公告)号：EP3339615A1
公开(公告)日：2018-06-27
申请号：EP16838990.6
申请日：2016-07-25
发明人： TSUKIO, Koichi
CPC分类号： F02D41/20 , F02D41/08 , F02D41/34 , F02D41/402 , F02D2041/2013 , F02D2041/2058 , F02D2041/2068 , F02D2041/389 , F02M51/00 , F02M51/06 , F02M61/10
摘要： Provided is booster device for driving an injector which can suppress an insufficiency of a boost voltage applied to the injector even when the fuel injection interval is short.
A boost driver 1 (switching element) is connected to a boost coil 4 in series and turns on/off the conduction of the boost coil 4. A boost capacitor 7 applies a voltage to the injector. A boost diode 6 has an anode connected to a connection point of the boost coil 4 and the boost driver 1 and a cathode connected to the boost capacitor 7. A boost gate control circuit 11 controls the boost driver 1 to be turned on/off so as to increase a charging speed of the boost capacitor 7 increases when a decision period indicating a period corresponding to an injection interval of the injector is equal to or less than the first threshold value.-
公开(公告)号：EP2901461B1
公开(公告)日：2018-07-11
申请号：EP13744515.1
申请日：2013-07-30
发明人： SYKES, Martin , MITCHEL, Alasdair , SMITH, Nick
CPC分类号： B05B9/0413 , B05B3/001 , F01N3/2066 , F01N3/208 , F01N2610/02 , F01N2610/11 , F01N2610/146 , F02D41/20 , F02D41/221 , F02D2041/2034 , F02D2041/2041 , F02D2041/2051 , F02D2041/2058 , F02D2041/2068 , F02D2041/2089 , F02M51/04 , F02M59/10 , G01R31/006 , G01R31/2829 , H01F7/06 , H01F7/1811 , H03K17/08142 , H03K17/0822 , H03K17/18 , Y02A50/2325 , Y02T10/24 , Y02T10/40 , Y10T29/49002
摘要： A fluid injector comprising a coil arranged to drive a pump from a first state to a second state when energized, so as to pump a dosing fluid; a PN junction electrically arranged across the coil to discharge energy stored in the coil when the voltage across the coil is above a threshold. In one particular embodiment, the fluid injector is a selective catalytic reduction dosing fluid injector.
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公开(公告)号：EP2901461A1
公开(公告)日：2015-08-05
申请号：EP13744515.1
申请日：2013-07-30
发明人： SYKES, Martin , MITCHEL, Alasdair , SMITH, Nick
CPC分类号： B05B9/0413 , B05B3/001 , F01N3/2066 , F01N3/208 , F01N2610/02 , F01N2610/11 , F01N2610/146 , F02D41/20 , F02D41/221 , F02D2041/2034 , F02D2041/2041 , F02D2041/2051 , F02D2041/2058 , F02D2041/2068 , F02D2041/2089 , F02M51/04 , F02M59/10 , G01R31/006 , G01R31/2829 , H01F7/06 , H01F7/1811 , H03K17/08142 , H03K17/0822 , H03K17/18 , Y02A50/2325 , Y02T10/24 , Y02T10/40 , Y10T29/49002
摘要： A fluid injector comprising a coil arranged to drive a pump from a first state to a second state when energized, so as to pump a dosing fluid; a PN junction electrically arranged across the coil to discharge energy stored in the coil when the voltage across the coil is above a threshold. In one particular embodiment, the fluid injector is a selective catalytic reduction dosing fluid injector.
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公开(公告)号：EP3187720A1
公开(公告)日：2017-07-05
申请号：EP15835172.6
申请日：2015-08-05
发明人： NAGATA, Yasuhiko
CPC分类号： F02D41/221 , F02D41/042 , F02D41/062 , F02D41/20 , F02D41/22 , F02D2041/2006 , F02D2041/2068 , F02D2041/2086 , F02D2041/224 , F02M51/06 , F02M61/04 , F02M61/16 , G01R31/00 , G01R31/028 , Y02T10/40
摘要： Some fuel injection valve drive control devices for an internal combustion engine which use a voltage boosted from an in-vehicle battery to control driving of a fuel injection valve are provided with a discharge circuit for discharging electric charge accumulated in a boost capacitor in the event of an emergency. However, the discharge circuit is intended for emergency use and does not operate during normal control, resulting in a problem in that occurrences of failures could go unnoticed and undiagnosed. In order to solve the aforementioned problem, the present invention has a configuration provided with: a boost circuit which has a boost coil, a switching component (FFT or the like) for supplying a switching current from a battery source voltage to the boost coil, and a boost capacitor for accumulating a boosted voltage generated by the operation of the switching component; a discharge circuit for discharging the accumulated electric charge via a current limiting means (e.g. discharge resistor, constant current source) and a discharge switch (FET or the like); and a monitoring circuit for monitoring the accumulated voltage. The discharge circuit is caused to operate when the control device is shutting down and performs a deterioration/failure diagnosis of the boost capacitor and an operation check of the discharge circuit on the basis of a monitored voltage value of the boost capacitor at the time of starting the discharge operation and a monitored voltage value of the boost capacitor after a predetermined time has elapsed.
摘要翻译： 用于内燃机的一些燃料喷射阀驱动控制装置使用从车载电池升压的电压来控制燃料喷射阀的驱动，其中设置有放电电路，用于在 一件紧急状况。 但是，放电电路用于紧急用途，并且在正常控制期间不运行，导致出现故障的情况可能被忽视并且未被诊断。 为了解决上述问题，本发明具有：升压电路，其具有升压线圈，用于从升压线圈向电池电源电压供给开关电流的开关元件（FFT等） 以及升压电容器，用于累积由开关组件的操作产生的升压电压; 放电电路，用于经由限流装置（例如放电电阻器，恒流源）和放电开关（FET等）释放积聚的电荷; 以及用于监视累积电压的监视电路。 当控制装置关闭时使放电电路工作，并且在启动时基于监测到的升压电容器的电压值执行升压电容器的劣化/故障诊断和放电电路的操作检查 经过预定时间后的放电操作和升压电容器的监测电压值。
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公开(公告)号：EP2662554A1
公开(公告)日：2013-11-13
申请号：EP12464009.5
申请日：2012-05-11
发明人： Bogdan, Dan
CPC分类号： F02D41/20 , F02D2041/2048 , F02D2041/2058 , F02D2041/2068 , H01H47/325
摘要： The invention relates to a driving circuit for a magnetic valve comprising a comparator with variable hysteresis (30). The comparator with variable hysteresis (30) additional to a measuring input terminal (CMP_IN(+)) and a control input terminal (CMP_IN(-)) has an output terminal (CMP_OUT) and comprises: an operational amplifier (31) having an non-inverting input terminal (+),an inverting input terminal (-) and an output terminal (CMP_OUT), a serial connection comprising a third resistor (34), a second resistor (33), a first resistor (32) and a control voltage source delivering a variable threshold value (V ctrl ), the serial connection being connected in parallel to a supply voltage (V 5V ) whereby a partial serial connection comprising the second resistor (33), the first resistor (32) and the control voltage source being connected in parallel to a further switching element (35) and the point of connection between the second (33) and first (32) resistor being a voltage tap (V in ), whereby the inverting input terminal (-) of the operational amplifier (31) being connected with the voltage tap (V in ) and the output terminal (CMP_OUT) of the operational amplifier (31) being connected with the control input terminal of the further switching element (35).
摘要翻译： 本发明涉及一种包括具有可变滞后（30）的比较器的电磁阀的驱动电路。 具有附加到测量输入端子（CMP_IN（+））和控制输入端子（CMP_IN（ - ））的可变滞后（30）的比较器具有输出端子（CMP_OUT），并且包括：运算放大器（31） - 反相输入端子（ - ）和输出端子（CMP_OUT）的串联连接，包括第三电阻器（34），第二电阻器（33），第一电阻器（32）和控制器 电压源提供可变阈值（V ctrl），串联连接并联连接到电源电压（V 5V），由此包括第二电阻器（33），第一电阻器（32）和控制电压 源极与另一开关元件（35）并联连接，并且第二（33）和第一（32）电阻器之间的连接点是电压抽头（V in），由此操作的反相输入端子（ - ） 放大器（31）与电压抽头（V in）a连接 和与另一个开关元件（35）的控制输入端连接的运算放大器（31）的输出端（CMP_OUT）。
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6.发明公开Method and apparatus for controlling a solenoid actuated inlet valve of a fuel pump 审中-公开用于控制燃油泵的螺线管致动入口阀的方法和设备
公开(公告)号：EP2743486A3
公开(公告)日：2018-05-02
申请号：EP13195849.8
申请日：2013-12-05
申请人： Hitachi, Ltd.
发明人： Tanabe, Yosuke , McCune, Donald J.
CPC分类号： F16K31/0655 , F02D41/3845 , F02D2041/2055 , F02D2041/2068 , F02D2200/025 , F02D2200/0602 , F02M59/367 , F04B7/0076 , Y10T137/0318
摘要： A method and apparatus for controlling a solenoid actuated inlet valve to a pump chamber of a piston pump. A control circuit 112 energizes the solenoid 116 to open the inlet valve 104 in synchronism with the reciprocation of the piston 108 and thereafter de-energize the solenoid 116 to initiate closure of the inlet valve 104. The inlet valve 104 is decelerated following de-energization of the solenoid 116 thus effectively reducing engine noise attributable to the inlet valve 104.
摘要翻译： 一种用于控制螺线管致动的进入活塞泵的泵室的入口阀的方法和装置。 控制电路112使螺线管116通电，以便与活塞108的往复运动同步地打开入口阀104，然后使螺线管116断电以启动入口阀104的关闭。入口阀104在去激励之后被减速 因此有效地减小了由进气门104引起的发动机噪音。
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公开(公告)号：EP3187720A4
公开(公告)日：2018-04-18
申请号：EP15835172
申请日：2015-08-05
发明人： NAGATA YASUHIKO
IPC分类号： F02D41/22 , F02D41/04 , F02D41/06 , F02D41/20 , F02M51/06 , F02M61/04 , F02M61/16 , G01R31/00 , G01R31/02
CPC分类号： F02D41/221 , F02D41/042 , F02D41/062 , F02D41/20 , F02D41/22 , F02D2041/2006 , F02D2041/2068 , F02D2041/2086 , F02D2041/224 , F02M51/06 , F02M61/04 , F02M61/16 , G01R31/00 , G01R31/028 , Y02T10/40
摘要： Some fuel injection valve drive control devices for an internal combustion engine which use a voltage boosted from an in-vehicle battery to control driving of a fuel injection valve are provided with a discharge circuit for discharging electric charge accumulated in a boost capacitor in the event of an emergency. However, the discharge circuit is intended for emergency use and does not operate during normal control, resulting in a problem in that occurrences of failures could go unnoticed and undiagnosed. In order to solve the aforementioned problem, the present invention has a configuration provided with: a boost circuit which has a boost coil, a switching component (FFT or the like) for supplying a switching current from a battery source voltage to the boost coil, and a boost capacitor for accumulating a boosted voltage generated by the operation of the switching component; a discharge circuit for discharging the accumulated electric charge via a current limiting means (e.g. discharge resistor, constant current source) and a discharge switch (FET or the like); and a monitoring circuit for monitoring the accumulated voltage. The discharge circuit is caused to operate when the control device is shutting down and performs a deterioration/failure diagnosis of the boost capacitor and an operation check of the discharge circuit on the basis of a monitored voltage value of the boost capacitor at the time of starting the discharge operation and a monitored voltage value of the boost capacitor after a predetermined time has elapsed.
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8.发明公开Method and apparatus for controlling a solenoid actuated inlet valve of a fuel pump 审中-公开用于控制Kraftstofpumpe的电磁致动入口阀的方法和装置
公开(公告)号：EP2743486A2
公开(公告)日：2014-06-18
申请号：EP13195849.8
申请日：2013-12-05
申请人： Hitachi, Ltd.
发明人： Tanabe, Yosuke , McCune, Donald J.
CPC分类号： F16K31/0655 , F02D41/3845 , F02D2041/2055 , F02D2041/2068 , F02D2200/025 , F02D2200/0602 , F02M59/367 , F04B7/0076 , Y10T137/0318
摘要： A method and apparatus for controlling a solenoid actuated inlet valve to a pump chamber of a piston pump. A control circuit 112 energizes the solenoid 116 to open the inlet valve 104 in synchronism with the reciprocation of the piston 108 and thereafter de-energize the solenoid 116 to initiate closure of the inlet valve 104. The inlet valve 104 is decelerated following de-energization of the solenoid 116 thus effectively reducing engine noise attributable to the inlet valve 104.
摘要翻译： 一种用于控制电磁致动入口阀到活塞泵的泵室的方法和装置。 控制电路112激励螺线管116同步地打开入口阀104与活塞108和其后的往复运动断电螺线管116以发起所述入口阀104入口阀104被减速之后去磁的闭合 螺线管116从而有效地降低发动机的噪音的属性能够在入口阀104届
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