公开(公告)号：US06488006B2

公开(公告)日：2002-12-03

申请号：US09815084

申请日：2001-03-22

Applicant: Ross Dykstra Pursifull

Inventor： Ross Dykstra Pursifull

IPC: F02M307

CPC classification number: F02D11/105 ,  F02D11/10 ,  F02D2011/102 ,  F02D2041/2003 ,  F02D2041/2034 ,  F02D2041/2037 ,  F02D2041/2055 ,  F02D2200/0404 ,  F02D2200/602 ,  F02D2400/08

Abstract: A method for controlling a positioning device of an internal combustion engine includes the steps of: providing an electric motor for actuating the positioning device; detecting a position of the positioning device in relationship to a stop; determining whether the positioning device is near the stop; enabling overshoot when the positioning device is not near the stop; determining a velocity of the positioning device; and, enabling overshoot of the positioning device when the positioning device is near the stop, but the velocity is below a predetermined value.

Abstract translation: 一种用于控制内燃机的定位装置的方法，包括以下步骤：提供用于致动定位装置的电动机; 检测所述定位装置与停止相关的位置; 确定定位装置是否接近停止; 当定位装置不靠近停止时启用过冲; 确定所述定位装置的速度; 并且当定位装置接近停止时，使得定位装置能够过冲，但速度低于预定值。

公开(公告)号：US20010047780A1

公开(公告)日：2001-12-06

申请号：US09862441

申请日：2001-05-23

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Seigo Komatsu ,  Ikuhiro Taniguchi ,  Taketoshi Kawabe ,  Shigeru Nakajima

IPC: F01L009/04

CPC classification number: F02D13/0253 ,  F01L9/04 ,  F02D13/0203 ,  F02D41/064 ,  F02D41/20 ,  F02D2041/001 ,  F02D2041/1422 ,  F02D2041/2037 ,  Y02T10/18

Abstract: In an electromagnetically operable engine valve assembly including a controller for an internal combustion engine, a stable initialization is achieved which suppresses a collision of a movable element against an electromagnet to cope with a viscosity of a lubricating oil during an engine start under an engine low temperature. A supplied current value is feedback controlled in accordance with a position of movable element when an initialization control such that a current is continuously supplied to one of electromagnets is executed. At this time, the feedback control gain G1 is, first, set to a relatively small value and is, thereafter, switched to a relatively large value at a gradual pace for each execution of the initialization control until the initialization control has succeeded in moving the movable element to an initial position.

Abstract translation: 在包括用于内燃机的控制器的电磁可操作的发动机气门组件中，实现了稳定的初始化，其抑制可移动元件与电磁体的碰撞，以在发动机低温下的发动机起动期间处理润滑油的粘度 。 当执行将电流连续提供给电磁体之一的初始化控制时，根据可动元件的位置来反馈控制供给的电流值。 此时，反馈控制增益G1首先被设定为相对较小的值，然后在每次执行初始化控制时逐渐切换到相对较大的值，直到初始化控制成功移动 可移动元件到初始位置。

公开(公告)号：US06269784B1

公开(公告)日：2001-08-07

申请号：US09559870

申请日：2000-04-26

Applicant: Stephen James Newton

Inventor： Stephen James Newton

IPC: F01L904

CPC classification number: F02D41/20 ,  F01L9/04 ,  F02D13/0203 ,  F02D13/0253 ,  F02D2041/001 ,  F02D2041/2037 ,  F02D2041/2079

Abstract: A controller for electrically actuated engine valves operates in a switching mode to monitor back EMF during periods when the coil drive current is off. Back EMF is used to determine a position of the armature so as to control the armature current to provide for soft seating of the valve reducing valve wear.

Abstract translation: 用于电动发动机气门的控制器在切换模式下工作，以在线圈驱动电流关闭期间监视反电动势。 反电动势用于确定电枢的位置，以便控制电枢电流，以提供阀门减压阀磨损的软阀座。

公开(公告)号：US5865371A

公开(公告)日：1999-02-02

申请号：US686936

申请日：1996-07-26

Applicant: Jeffrey B. Pace ,  Vernon R. Warner ,  James A. Nitkiewicz

Inventor： Jeffrey B. Pace ,  Vernon R. Warner ,  James A. Nitkiewicz

IPC: F02M51/08 ,  F02D41/20 ,  F02M63/00 ,  F16K31/08

CPC classification number: F02D41/20 ,  F02D19/024 ,  F02D2041/2027 ,  F02D2041/2031 ,  F02D2041/2034 ,  F02D2041/2037 ,  F02D2200/063

Abstract: An injector needle/armature assembly stroke is controlled so as to minimize opening and closing impact forces. The controlled motion eliminates or significantly reduces the problems associated with valve bounce, providing less acoustic emission, reduced wear, improved spray characteristics and better flow regulation. The current applied to the electromagnetic coil of the injector in accordance with a modified injector timing pulse waveform serves to reduce impact velocities at each end of the armature stroke. The waveform can be optimized for a class of injectors with a pulse width modulated waveform, repeatedly re-energizing and de-energizing the electromagnetic coil in accordance with an optimized on/off pulse train.

Abstract translation: 控制喷射器针/电枢组件行程以最小化打开和关闭冲击力。 控制运动消除或显着减少与阀弹跳相关的问题，提供更少的声发射，减少的磨损，改进的喷雾特性和更好的流量调节。 根据修改的喷射器定时脉冲波形施加到喷射器的电磁线圈的电流用于减小在电枢行程的每个端部处的冲击速度。 该波形可针对具有脉冲宽度调制波形的一类喷射器进行优化，根据优化的开/关脉冲序列反复重新激励和断开电磁线圈。

公开(公告)号：US4266261A

公开(公告)日：1981-05-05

申请号：US51588

申请日：1979-06-25

Applicant: Klaus Streit ,  Klaus Harsch ,  Peter Schulzke

Inventor： Klaus Streit ,  Klaus Harsch ,  Peter Schulzke

IPC: F02D41/20 ,  H01H47/32

CPC classification number: H01H47/325 ,  F02D41/20 ,  F02D2041/2017 ,  F02D2041/2031 ,  F02D2041/2037 ,  F02D2041/2058

Abstract: A method is proposed for operating an electromagnetic load device with a movable armature, especially an injection valve of an internal combustion engine. The load device is supplied, at the beginning of trigger pulse, with a high amperage current and, at least toward the end of the pulse, with a reduced current. This method is characterized in that, starting with a certain amperage, at which preferably the armature is set into motion but has not as yet reached its final position, the current rise is at least reduced. The apparatus aspect comprises a measuring element and switching element connected in series with the load device. A threshold switch is associated with the measuring element to control the switching element. The switching thresholds of the threshold switch can be controlled in dependence on current and/or on time. The first current threshold is at a value at which the armature of the load is preferably being moved, but has not yet reached its final position. The method and the apparatus achieve a low power operation of the load device with a coincidence factor between the trigger pulse signal and, for example, the switching characteristic of an injection valve. It is essential that the current flow, after the starting current, no longer continue to rise in the same way but rather, if possible, is already somewhat reduced and, after the armature of the load has been attracted, a holding current is established as a function current and/or time. With a view toward a clear cut-out characteristic, a short term current supply to the load is advantageous at the end of the actual trigger pulse signal.

Abstract translation: 提出一种用于操作具有可移动衔铁，特别是内燃机的喷射阀的电磁负载装置的方法。 负载装置在触发脉冲开始时以高电流电流供电，并且至少朝向脉冲的末端以减小的电流供电。 该方法的特征在于，以一定的电流强度开始，优选地，电枢被设定为运动但尚未达到其最终位置，电流上升至少减小。 装置方面包括与负载装置串联连接的测量元件和开关元件。 阈值开关与测量元件相关联，以控制开关元件。 可以根据电流和/或导通时间来控制阈值开关的切换阈值。 第一电流阈值处于负载电枢优选地移动但尚未达到其最终位置的值。 该方法和装置以触发脉冲信号与例如喷射阀的切换特性之间的重合因素实现负载装置的低功率运行。 重要的是，起动电流之后的电流不再以相同的方式继续上升，而是如果可能的话已经有所减少，并且在负载的电枢被吸引之后，保持电流被建立为 功能电流和/或时间。 为了获得明确的切断特性，在实际触发脉冲信号结束时，对负载的短期电流供应是有利的。

公开(公告)号：US20190024601A1

公开(公告)日：2019-01-24

申请号：US16070177

申请日：2016-12-22

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Akiyasu MIYAMOTO ,  Masahiro TOYOHARA ,  Osamu MUKAIHARA ,  Yoshihito YASUKAWA

IPC: F02D41/20 ,  F02D41/30 ,  F02M51/06

CPC classification number: F02D41/20 ,  F02D41/3005 ,  F02D41/402 ,  F02D2041/2037 ,  F02D2041/2044 ,  F02D2041/2051 ,  F02M51/0685 ,  F02M2200/50

Abstract: A control device of a fuel injection device improves stabilization in an opening operation of a valve element and stabilizes an injection amount. The control device includes a valve element to open a fuel passage by being separated from a valve seat, a movable iron core to perform an opening/closing operation of the valve element, and a fixed iron core to attract the movable iron core when a current flows to a coil. The control device includes a control unit which performs an intermediate energization in which the coil is energized again to attract the movable iron core to the fixed iron core and then the energizing to the coil is blocked and the movable iron core is displaced in a direction away from the fixed core. The control unit controls whether the intermediate energization is performed according to an injection interval of the fuel injection device.

公开(公告)号：US09932947B2

公开(公告)日：2018-04-03

申请号：US14643872

申请日：2015-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas Wolfgang Nehl ,  Suresh Gopalakrishnan ,  Chandra S. Namuduri ,  Avoki M. Omekanda

IPC: H01H47/22 ,  H01H47/32 ,  H01H47/04 ,  F02M51/06 ,  H01F7/18 ,  F02D41/20 ,  F02D41/40

CPC classification number: F02M51/0625 ,  F02D41/20 ,  F02D41/402 ,  F02D2041/2037 ,  F02D2041/2044 ,  F02D2041/2058 ,  F02D2041/2072 ,  H01F7/1872

Abstract: An electromagnetic actuation system includes an electrical coil, a magnetic core, an armature, a controllable bi-directional drive circuit for selectively driving current through the coil in either of two directions, and a control module providing an actuator command to the drive circuit. Current is driven though the electrical coil in a first direction when an actuation is desired. When the actuation is not desired current is driven through the electrical coil including in a second direction sufficient to reduce residual flux within the actuator below a level passively attained within the actuator at zero coil current.

公开(公告)号：US20170211558A1

公开(公告)日：2017-07-27

申请号：US15296173

申请日：2016-10-18

Applicant: DENSO CORPORATION

Inventor： Chi ZHANG

IPC: F04B7/00 ,  F02M59/02 ,  F02D41/30 ,  F04B49/06 ,  F04B17/05 ,  F04B53/14 ,  F04B53/10 ,  F02M59/10 ,  F04B9/04

CPC classification number: F04B7/0076 ,  F02D41/20 ,  F02D41/3082 ,  F02D41/3845 ,  F02D2041/2037 ,  F02D2041/2058 ,  F02M59/025 ,  F02M59/102 ,  F02M59/368 ,  F04B1/0408 ,  F04B1/0426 ,  F04B1/0456 ,  F04B1/053 ,  F04B9/042 ,  F04B17/05 ,  F04B23/04 ,  F04B49/06 ,  F04B49/065 ,  F04B53/001 ,  F04B53/10 ,  F04B53/102 ,  F04B53/14

Abstract: When a condition for reducing a noise caused in the high-pressure pump is satisfied, a reduction control unit implements a noise reduction control to supply a smaller power to reduce a moving speed of a movable portion in a close acting direction to put a valve body into a closed state for a predetermined time after an energization start timing of a solenoid in a plunger rising period. A closing control unit causes a closing current, which is a constant current for surely putting the valve body into the closed state, to flow the closing current in the solenoid when the noise reduction control is completed in the plunger rising period. The predetermined time is shorter than an energization period in which a current flows in the solenoid.

公开(公告)号：US09617939B2

公开(公告)日：2017-04-11

申请号：US14346019

申请日：2012-09-20

Applicant: DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA

Inventor： Francois Ravenda

IPC: F02D41/20

CPC classification number: F02D41/20 ,  F02D2041/2027 ,  F02D2041/2037 ,  F02D2041/2058 ,  F02D2041/2062

Abstract: A method is provided for determining the velocity of a pintle assembly in a solenoid fuel injector during a closing stroke of the pintle assembly, such that a braking step is performed during the closing stroke, which includes operating an injector driver with a current regulator to establish a braking current in the solenoid coil. The velocity of the pintle assembly is derived from the duty-cycle of the current regulator during the braking step. A method of operating a solenoid fuel injector, in particular for gaseous fuel, using the so-determined pintle velocity is also provided.

公开(公告)号：US09502633B2

公开(公告)日：2016-11-22

申请号：US14403428

申请日：2013-05-21

Applicant: CONTINENTAL AUTOMOTIVE FRANCE ,  CONTINENTAL AUTOMOTIVE GMBH

Inventor： Michael Leblon ,  Alain Atanasyan ,  Jeremie Memain

IPC: H01L41/04 ,  F02D41/20 ,  F02D41/40 ,  F02M51/06

CPC classification number: H01L41/042 ,  F02D41/2096 ,  F02D41/402 ,  F02D2041/2037 ,  F02D2041/2051 ,  F02M51/0603 ,  Y02T10/44

Abstract: Method for controlling a piezoelectric actuator acting on valve elements to open or close a fuel injector respectively allowing or preventing fuel injection into a combustion chamber of an engine, the method includes: applying to the piezoelectric actuator a nominal electrical charge to open the injector, as a function of the torque required and the engine speed, to open the valve elements for fuel injection, thereafter applying to the actuator at least one electrical polarization charge, to polarize the actuator during an opening phase of the injector and fuel injection into the combustion chamber, thereafter commanding the closure of the injector by applying to the actuator at least one electrical discharge to close the valve elements, the step of applying the electrical polarization charge including a prior step of increasing the value of the charge current to a value greater than that of the nominal charge.