Method of controlling valve landing in a camless engine
    1.
    发明授权
    Method of controlling valve landing in a camless engine 失效
    在无凸轮发动机中控制阀门着陆的方法

    公开(公告)号:US06397797B1

    公开(公告)日:2002-06-04

    申请号:US09732696

    申请日:2000-12-08

    IPC分类号: F01L904

    CPC分类号: F01L9/04

    摘要: A method of controlling valve landing in a camless engine including a valve movable between fully open and fully closed positions, and an electromagnetic valve actuator for actuating the valve is provided. The method includes providing at least one discrete position measurement sensor to determine when the valve is at a particular position during valve movement. The velocity of the valve is calculated at the particular position based upon current and rate of change of current in the electromagnetic valve actuator when the valve is at the particular position. Valve landing is controlled based upon the calculated velocity.

    摘要翻译: 一种在无凸轮发动机中控制阀门着陆的方法,包括可在完全打开和完全关闭位置之间移动的阀,以及用于致动阀的电磁阀致动器。 该方法包括提供至少一个离散的位置测量传感器,以确定在阀门运动期间阀门何时处于特定位置。 当阀处于特定位置时,基于电磁阀致动器中的电流的变化的电流和速率在特定位置处计算阀的速度。 基于计算的速度控制阀门着陆。

    Control algorithm for soft-landing in electromechanical actuators
    2.
    发明授权
    Control algorithm for soft-landing in electromechanical actuators 有权
    机电执行器软着陆控制算法

    公开(公告)号:US06693787B2

    公开(公告)日:2004-02-17

    申请号:US10098780

    申请日:2002-03-14

    IPC分类号: H01H900

    摘要: A system (12) and method for controlling an armature (20) of an electromagnetic actuator (10) are provided. The system (12) includes a circuit (46) for providing current to the coils (32, 34) of electromagnets (16, 18) disposed on either side of the armature (20). The system (12) also includes an electronic control unit (ECU) (50). The ECU (50) is configured to determine the neutral position of a virtual spring corresponding to the combination of forces acting on the armature 20 including the magnetic force of the attracting electromagnet (16 or 18) and the force of a restoring spring (22 or 24) opposing movement of the armature (20) towards the attracting electromagnet (16 or 18). The ECU (50) is further configured to control the current in the coil (32 or 34) of the attracting electromagnet (16 or 18) responsive to the determined neutral position so as to minimize the velocity of the armature as it reaches the pole face (36 or 38) of the attracting electromagnet (16 or 18).

    摘要翻译: 提供一种用于控制电磁致动器(10)的电枢(20)的系统(12)和方法。 系统(12)包括用于向设置在电枢(20)的任一侧的电磁体(16,18)的线圈(32,34)提供电流的电路(46)。 系统(12)还包括电子控制单元(ECU)(50)。 ECU(50)被配置为确定虚拟弹簧的中性位置对应于包括吸引电磁体(16或18)的磁力的作用在电枢20上的力的组合以及恢复弹簧(22或 24)电枢(20)相对于吸引电磁体(16或18)的相对运动。 ECU(50)还被配置为响应于所确定的中立位置来控制吸引电磁体(16或18)的线圈(32或34)中的电流,以便使电枢达到极面时的速度最小化 (36或38)的吸引电磁体(16或18)。

    Control methods for electromagnetic valve actuators
    3.
    发明授权
    Control methods for electromagnetic valve actuators 失效
    电磁阀执行机构的控制方法

    公开(公告)号:US06845300B2

    公开(公告)日:2005-01-18

    申请号:US10037250

    申请日:2002-01-07

    IPC分类号: F01L9/04 G05D11/00

    CPC分类号: F01L9/04

    摘要: An electromagnetically operated valve assembly (28) has a first solenoid (58) and a second solenoid (60). An armature (56) having a valve stem (54) coupled thereto is positioned between the first solenoid (58) and second solenoid (60). A controller (12) is coupled to the first solenoid (58), the second solenoid (60). A current sensor (49) is coupled to the first solenoid and generated a signal corresponding to the induced current in the first solenoid. The controller (12) changes a voltage applied to the first solenoid from a first polarity to a second polarity. The controller (12) is further configured to hold the voltage at the second polarity for a predetermined time period and a predetermined amplitude to decrease the induced current. The predetermined time period or the predetermined amplitude is determined based on the first signal.

    摘要翻译: 电磁操作阀组件(28)具有第一螺线管(58)和第二螺线管(60)。 具有与其连接的阀杆(54)的衔铁(56)位于第一螺线管(58)和第二螺线管(60)之间。 控制器(12)联接到第一螺线管(58),第二螺线管(60)。 电流传感器(49)耦合到第一螺线管,并产生对应于第一螺线管中的感应电流的信号。 控制器(12)将施加到第一螺线管的电压从第一极性改变为第二极性。 控制器(12)还被配置成将预定时间段和预定幅度的第二极性电压保持以减小感应电流。 基于第一信号确定预定时间段或预定幅度。

    Method for controlling an electromechanical actuator for a fuel air charge valve
    5.
    发明授权
    Method for controlling an electromechanical actuator for a fuel air charge valve 失效
    用于控制用于燃料空气充气阀的机电致动器的方法

    公开(公告)号:US06681728B2

    公开(公告)日:2004-01-27

    申请号:US09682987

    申请日:2001-11-05

    IPC分类号: F01L904

    CPC分类号: F01L9/04

    摘要: A method for controlling movement of an armature for an electromagnetic valve actuator. The armature moves between pole faces of juxtaposed solenoid coils. Voltage applied to armature capturing coil is varied in a closed-loop fashion as the armature moves through a flux initialization phase, followed by an armature landing phase whereby a soft landing of the armature is achieved during valve opening movement and valve closing movement.

    摘要翻译: 一种用于控制用于电磁阀致动器的电枢的运动的方法。 电枢在并置的电磁线圈的极面之间移动。 施加到电枢捕获线圈的电压在电枢移动通过磁通初始化阶段时以闭环方式变化,随后是电枢着陆阶段,从而在阀打开运动和闭阀运动期间实现电枢的软着陆。

    Permanent magnet enhanced electromagnetic valve actuator

    公开(公告)号:US06532919B2

    公开(公告)日:2003-03-18

    申请号:US09732839

    申请日:2000-12-08

    IPC分类号: F01L904

    CPC分类号: F01L9/04

    摘要: An electromagnetic valve actuator (EVA) for actuating movement of a valve in a vehicle engine includes a valve assembly operatively connected to the valve for movement therewith. The valve assembly includes a shaft connected to the valve. Two armature plates are operatively associated with the shaft, and each armature plate includes a permanent magnet. An electromagnetic coil is positioned between the two armature plates for selectively electromagnetically pushing and pulling the armature plates. Two springs are engaged with the two armature plates, respectively, for biasing the armature plates in opposing directions. The permanent magnets are operative to assist the electromagnetic coil in holding the valve in a desired position to reduce power consumption or assisting in repelling the armature for accelerating valve opening or closing.

    Method and system for transient load response in a camless internal combustion engine
    7.
    发明授权
    Method and system for transient load response in a camless internal combustion engine 有权
    无凸轮内燃机瞬态负载响应方法及系统

    公开(公告)号:US06431129B1

    公开(公告)日:2002-08-13

    申请号:US09648330

    申请日:2000-08-25

    IPC分类号: F01L134

    摘要: A method of operating an internal combustion engine in response to a transient load includes the steps of providing an air charge quantity required to produce a commanded air-fuel mixture within the combustion chamber, providing a fuel quantity required to produce a commanded air-fuel mixture within the combustion chamber, and displacing a quantity of the air-fuel mixture from the combustion chamber in response to the transient load. The method is especially advantageous for rapidly affecting engine response to transient loads resulting from sudden load change events, such as traction control, transmission shift and driver demand events.

    摘要翻译: 一种根据瞬时负载操作内燃机的方法包括以下步骤:提供在燃烧室内产生指令的空气 - 燃料混合物所需的空气装料量,从而提供生产指挥的空气 - 燃料混合物所需的燃料量 在燃烧室内,并且响应于瞬态负载而使一定量的空气 - 燃料混合物从燃烧室移位。 该方法特别有利于快速影响由突然的负载变化事件引起的瞬态负载的响应,例如牵引力控制,变速器换档和驾驶员需求事件。

    Multi-valve engine with gas exchange channel between inlet ports
    8.
    发明授权
    Multi-valve engine with gas exchange channel between inlet ports 失效
    多气门发动机在进气口之间具有气体交换通道

    公开(公告)号:US06705261B2

    公开(公告)日:2004-03-16

    申请号:US10214343

    申请日:2002-08-07

    IPC分类号: F01L126

    摘要: An intake valve phase shift in multi-valve engines to enhance air-fuel mixing and optimum combustion at all operating conditions. The intake valve members are independently operated by electro-mechanical actuators or the like, and activated and deactivated by the electronic controller of the engine. A channel or passageway in a diverter member positioned between the two intake ports in the cylinder head allows air and fuel from a closed intake port to be diverted to an open intake port and thus into the combustion chamber. The passageway preferably has a configuration with a certain curvature, orientation and position relative to the diameter of the inlet ports. The curvature is about one-half the diameter D of the inlet port, the passageway is symmetrical from port to port and directs the fuel toward the opposite sides of the ports, and the passageway is positioned about D/4 from the valve seats.

    摘要翻译: 多气门发动机中的进气阀相移,以在所有操作条件下增强空气燃料混合和最佳燃烧。 进气阀构件由机电致动器等独立地操作,并且由发动机的电子控制器激活和去激活。 位于气缸盖中的两个进气口之间的分流器构件中的通道或通道允许来自封闭的进气口的空气和燃料被转移到打开的进气口并进入燃烧室。 该通道优选地具有相对于入口的直径具有一定曲率,取向和位置的构造。 曲率大约是入口直径D的一半,通道从端口到端口对称,并将燃料引导到端口的相对侧,并且通道定位在距离阀座大约D / 4的位置。

    Method and system for starting a camless internal combustion engine
    10.
    发明授权
    Method and system for starting a camless internal combustion engine 有权
    启动无凸轮内燃机的方法和系统

    公开(公告)号:US06357409B1

    公开(公告)日:2002-03-19

    申请号:US09577030

    申请日:2000-05-23

    IPC分类号: F01L1308

    摘要: A method for starting a camless internal combustion engine in response to a start signal, the internal combustion engine having a crankshaft and multiple cylinders each having one or more actuators for electronically actuating corresponding intake and exhaust valves, the internal combustion engine being mechanically coupled via the crankshaft to a starter motor, the starter motor being activated in response to the start signal, the method including the steps of: positioning each of the valves in accordance with a predetermined valve initial position, the valves being positioned so as to allow the flow of air in and out of each of the cylinders; rotating the crankshaft via the starter to a target idle speed for the engine; activating each of the valves in accordance with a predetermined valve activation sequence when the rotational speed of the crankshaft equals or exceeds the target idle speed; and activating each of the cylinders in accordance with a predetermined cylinder activation sequence after the valves have been activated.

    摘要翻译: 一种用于响应于启动信号启动无凸轮内燃机的方法,内燃机具有曲轴和多个气缸,每个气缸具有一个或多个致动器,用于电子地驱动相应的进气门和排气门,所述内燃机经由 起动电动机响应于起动信号被启动,该方法包括以下步骤:根据预定的阀初始位置对每个阀进行定位,阀被定位成允许阀的流动 每个气瓶进出的空气; 通过起动器将曲轴旋转到发动机的目标怠速; 当曲轴的转速等于或超过目标怠速时,根据预定的阀启动顺序激活每个阀; 并且在阀被激活之后根据预定的气缸启动顺序来启动每个气缸。