公开(公告)号：US3982505A

公开(公告)日：1976-09-28

申请号：US503460

申请日：1974-09-05

申请人： Jean-Pierre Rivere

发明人： Jean-Pierre Rivere

IPC分类号： F02D41/20 ,  H01F7/18 ,  F02B3/00

CPC分类号： F02D41/20 ,  H01F7/1805 ,  F02D2041/1409 ,  F02D2041/2017 ,  F02D2041/2034 ,  F02D2041/2044 ,  F02D2041/2051 ,  F02D2041/2058

摘要： A method for controlling the response time of an electromechanical device having an actuating solenoid comprising: applying three reference voltages from three reference voltage sources in a predetermined order to a voltage and current amplifier which drives the solenoid, generating from the three reference voltages three corresponding currents through the solenoid, the three currents being a premagnetization current, a maximum activation current of the solenoid and a deactivation current of the solenoid.

摘要翻译： 一种用于控制具有致动螺线管的机电装置的响应时间的方法，包括：将来自三个参考电压源的预定顺序的三个参考电压施加到驱动所述螺线管的电压和电流放大器，从三个参考电压产生三个相应的电流 通过螺线管，三个电流是预磁化电流，螺线管的最大激活电流和螺线管的停用电流。

公开(公告)号：US3021454A

公开(公告)日：1962-02-13

申请号：US72798658

申请日：1958-04-11

申请人： BENDIX CORP

发明人： PICKENS ROBERT A

IPC分类号： F02D41/20

CPC分类号： F02D41/20 ,  F02D2041/2003 ,  F02D2041/2044

公开(公告)号：US20190234359A1

公开(公告)日：2019-08-01

申请号：US15775944

申请日：2016-11-07

申请人： Hitachi Automotive Systems, Ltd.

发明人： Masanori WATANABE ,  Shunsuke ARITOMI ,  Kenichiro TOKUO ,  Masayuki SUGANAMI

IPC分类号： F02M59/36 ,  F02D41/20 ,  F02M59/46 ,  F02M63/00 ,  F02D41/40

CPC分类号： F02M59/368 ,  F02D41/20 ,  F02D41/38 ,  F02D41/406 ,  F02D2041/2003 ,  F02D2041/2037 ,  F02D2041/2044 ,  F02D2041/2048 ,  F02M59/466 ,  F02M63/0022

摘要： It is an object of the present invention to provide a control method of a high-pressure fuel supply pump and a high-pressure fuel supply pump using the same capable of effectively reducing noise generated when an electromagnetic suction valve is opened. This can be realized such that, in a control method of a high-pressure fuel supply pump including a suction valve disposed on the suction side of the pressurizing chamber, a rod for urging the suction valve toward the opening valve direction, and an anchor for moving the rod in the closing valve direction with attraction by magnetic attraction caused by a solenoid being energized, when the anchor moves in the opening valve direction, a first drive current is passed through the solenoid for a predetermined period of time, and thereafter a second drive current larger than the first drive current is passed through the solenoid for a predetermined period of time.

公开(公告)号：US20180023720A1

公开(公告)日：2018-01-25

申请号：US15548297

申请日：2016-01-26

申请人： Schaeffler Technologies AG & Co. KG

发明人： Piergiacomo Traversa ,  Gerulf Pedersen

IPC分类号： F16K31/06 ,  F02B77/08

CPC分类号： F16K31/06 ,  F02B77/082 ,  F02D41/20 ,  F02D41/221 ,  F02D2041/2017 ,  F02D2041/2034 ,  F02D2041/2044 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02M51/0621 ,  F02M65/00 ,  Y02T10/40

摘要： The invention relates to a method for simulating malfunctioning solenoid valves for an internal combustion engine by influencing an activation time and a deactivation time of the solenoid valve. A current with a specified modifiable current strength flows through the solenoid valve in order to achieve an opening and closing process. The closing process is forced after the current supplied to the solenoid valve is activated at the activation time, and the opening process is forced after the current supplied to the solenoid valve is deactivated at the deactivation time. The current is applied with a charging current strength prior to the activation time for the duration of a charging phase, and after the activation time, the current is increased to peak current strength and subsequently reduced to a holding current strength. Furthermore, after the deactivation time, the current strength is reduced to a deactivation current strength, and after a delay, the current strength (I) increases again as a result of induction. A variation of the value and/or duration of the current strength and/or an application of an additional magnetic force is used to simulate a premature activation, a delayed activation, a premature deactivation, and/or a delayed deactivation.

公开(公告)号：US09856840B2

公开(公告)日：2018-01-02

申请号：US15195075

申请日：2016-06-28

申请人： Caterpillar Inc.

发明人： Daniel R. Puckett ,  Bryan Moore ,  Michael E. Sattler ,  Prasanna M. Ballal ,  Bradley S. Bashore ,  Kranti K. Nellutla

IPC分类号： F02B15/00 ,  F02M47/02 ,  F02D41/38 ,  F02M51/06 ,  F02D41/20 ,  F02M63/00 ,  F02D41/30

CPC分类号： F02M47/027 ,  F02D41/20 ,  F02D41/3082 ,  F02D41/3836 ,  F02D2041/2044 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02M51/0625 ,  F02M63/0022 ,  F02M63/0075

摘要： Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.

公开(公告)号：US20170222428A1

公开(公告)日：2017-08-03

申请号：US15412002

申请日：2017-01-21

申请人： LSIS CO., LTD.

发明人： Jaehyuk CHOI

IPC分类号： H02H7/22 ,  H01H47/32

CPC分类号： H02H7/222 ,  F02D41/20 ,  F02D2041/2027 ,  F02D2041/2044 ,  F02D2041/2065 ,  H01F7/1844 ,  H01F2007/1866 ,  H01F2007/1888 ,  H01H47/002 ,  H01H47/325 ,  H01H2047/025

摘要： The magnetic coil driving circuit of the magnetic contactor according to the present invention comprises a semiconductor switch configured to open or close a circuit for magnetizing or demagnetizing a magnetic coil; a pulse width modulation unit configured to output a pulse signal as a control signal for turning on or off the semiconductor switch; a control unit configured to output a control signal for changing a pulse width of the pulse signal to the pulse width modulation unit; and a temperature detection and protection unit configured to detect a temperature inside the magnetic contactor, output an output signal for turning off the semiconductor switch when the temperature exceeds an allowable temperature, and control the semiconductor switch by the pulse signal from the pulse width modulation unit when the temperature is within the allowable temperature.

公开(公告)号：US09482196B2

公开(公告)日：2016-11-01

申请号：US14399227

申请日：2013-05-08

申请人： Continental Automotive GmbH

发明人： Mauro Grandi

IPC分类号： F02D41/22 ,  F02D41/24 ,  F02M51/06 ,  F02M57/00 ,  F02D41/20

CPC分类号： F02M51/061 ,  F02D41/20 ,  F02D41/221 ,  F02D41/2467 ,  F02D2041/2034 ,  F02D2041/2044 ,  F02D2041/2058 ,  F02M57/005 ,  Y02T10/40

摘要： A method is disclosed for monitoring an opening of an injection valve. The injection valve includes a valve body with a cavity having a fluid outlet portion, a valve needle movable in the cavity between a closing position preventing fluid flow outlet and other positions allowing fluid flow through the outlet, and an actuator unit for actuating the valve needle. The method includes actuating the actuator unit with a predetermined voltage signal, recording a time-dependent profile of a current through the actuator unit, detecting a first gradient alteration time where the gradient of the recorded current profile changes more than a first threshold, detecting a second gradient alteration time where the gradient of the recorded current profile changes more than a second threshold, and based on the first and second gradient alteration times determining a diagnostic value usable for compensating a long-term drift of the injection valve.

摘要翻译： 公开了一种用于监视喷射阀的打开的方法。 注射阀包括具有腔体的阀体，其具有流体出口部分，可在空腔中可移动的封闭位置，阻止流体流出口与允许流体流过出口的其它位置之间的阀针以及用于致动阀针的致动器单元 。 所述方法包括以预定的电压信号致动所述致动器单元，记录电流通过所述致动器单元的时间相关曲线，检测所述记录的电流分布的梯度变化多于第一阈值的第一梯度改变时间，检测 第二梯度改变时间，其中所记录的电流分布的梯度变化大于第二阈值，并且基于确定可用于补偿喷射阀的长期漂移的诊断值的第一和第二梯度改变时间。

公开(公告)号：US09476330B2

公开(公告)日：2016-10-25

申请号：US14551388

申请日：2014-11-24

申请人： DENSO CORPORATION

发明人： Keita Kojima

IPC分类号： F02D41/00 ,  F01L9/04 ,  F02D41/20 ,  F02D41/22

CPC分类号： F01L9/04 ,  F01L2009/0401 ,  F02D41/20 ,  F02D41/22 ,  F02D2041/2006 ,  F02D2041/2027 ,  F02D2041/2044 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2041/2089

摘要： An electromagnetic valve driver, in normal operation, supplies peak current from a capacitor to a coil of an injector by turning ON a transistor on a downstream side of the coil and a discharge transistor that discharges electricity from the capacitor to the coil. Thereafter, the driver supplies constant current to the coil by an ON-OFF control of a transistor disposed between a battery and an upstream side of the coil until an end of the electricity supply period. When an open failure of the discharge transistor is detected, the driver controls the current to prevent a voltage rise of the capacitor to reduce flyback energy collected from a downstream side of the coil by the capacitor based on a transistor OFF timing delay scheme, in which an OFF timing of a transistor is delayed by a preset delay time from a normal OFF timing thereof.

摘要翻译： 电磁阀驱动器在正常操作中通过接通线圈下游侧的晶体管和从电容器向线圈放电的放电晶体管，将电容器的峰值电流提供给注入器的线圈。 此后，驱动器通过对设置在电池和线圈的上游侧之间的晶体管的ON-OFF控制向线圈供给恒定电流，直到电力供给期间结束。 当检测到放电晶体管的开路故障时，驱动器控制电流以防止电容器的电压上升，以减少基于晶体管OFF定时延迟方案由电容器从线圈的下游侧收集的回扫能量，其中 晶体管的OFF定时从其正常OFF定时延迟预设的延迟时间。

公开(公告)号：US09382860B2

公开(公告)日：2016-07-05

申请号：US14115469

申请日：2012-05-03

申请人： Christoph Klesse ,  Thomas Kraft ,  Hans Riepl ,  Tobias Ritsch

发明人： Christoph Klesse ,  Thomas Kraft ,  Hans Riepl ,  Tobias Ritsch

IPC分类号： F02D41/00 ,  F02D41/20 ,  F02D41/24 ,  F02D41/40

CPC分类号： F02D41/20 ,  F02D41/2464 ,  F02D41/401 ,  F02D2041/2044

摘要： A valve includes a spring having a spring force, an actuator having an actuator force that acts against the spring force, and a tappet that can be actuated by means of the actuator. The valve also includes a sealing element, which is or can be coupled to the tappet, and a sealing seat, such that the valve is closed when the sealing element lies against the sealing seat. A current having a specified curve, proceeding from an initial value of the current to a specified final value of the current, is applied during a specified time interval of the actuator after a closing phase of the valve for a normally open valve or after an opening phase for a normally closed valve. The initial value of the current is less than the final value.

摘要翻译： 阀包括具有弹簧力的弹簧，具有抵抗弹簧力的致动器力的致动器以及能够通过致动器致动的挺杆。 该阀还包括已经或可以联接到挺杆的密封元件和密封座，使得当密封元件抵靠密封座时阀被关闭。 具有特定曲线的电流从电流的初始值到电流的规定的最终值，在致动器的指定时间间隔内，在常开阀的阀的闭合阶段之后或在开启之后 常闭阀门。 电流的初始值小于最终值。

公开(公告)号：US20150256114A1

公开(公告)日：2015-09-10

申请号：US14197494

申请日：2014-03-05

申请人： Continental Automotive Systems, Inc.

发明人： Izcoati Emmanuel Sanchez Gonzalez ,  Sergio Garcia de Alba Garcin ,  Oscar Alexjandro Camacho ,  Rafael Cobas Asensio

IPC分类号： H02P25/02 ,  F02M61/04 ,  F02M51/06

CPC分类号： F02D41/20 ,  F02D2041/2041 ,  F02D2041/2044 ,  F02D2041/2079 ,  F02M51/0617 ,  F02M65/005

摘要： A detection circuit for a diesel injection valve includes a first threshold, a first comparator for receiving a BEMF signal from the valve and compare the BEMF signal to the first threshold, a filter for filtering the BEMF signal thereby providing a filtered BEMF signal, a second threshold, and a second comparator for comparing a difference between the BEMF signal and the filtered BEMF signal to the second threshold, indicating an end of motion of the valve. An output of the first comparator and an output of the second comparator are joined to define an output signal. The output signal is activated only when the BEMF signal is above the first threshold and when the difference between the BEMF signal and the filtered BEMF signal is greater than the second threshold.

摘要翻译： 用于柴油喷射阀的检测电路包括第一阈值，用于从阀接收BEMF信号并将BEMF信号与第一阈值进行比较的第一比较器，用于对BEMF信号进行滤波从而提供经滤波的BEMF信号的滤波器， 阈值，以及第二比较器，用于将BEMF信号和滤波后的BEMF信号之间的差值与第二阈值进行比较，指示阀的运动结束。 第一比较器的输出和第二比较器的输出被连接以限定输出信号。 只有当BEMF信号高于第一阈值并且BEMF信号和滤波后的BEMF信号之间的差异大于第二阈值时，输出信号才被激活。