利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

33 条记录 (耗时 0.021 秒)

    Sequencer module for a pulse width modulation driver
    21.
    发明授权
    Sequencer module for a pulse width modulation driver 失效
    用于脉冲宽度调制驱动器的音序器模块

    公开(公告)号：US6094079A

    公开(公告)日：2000-07-25

    申请号：US216902

    申请日：1998-12-21

    申请人： Brian L. Boggs ,  Paul C. Gottshall ,  Steven O. Hart ,  Brian G. McGee

    发明人： Brian L. Boggs ,  Paul C. Gottshall ,  Steven O. Hart ,  Brian G. McGee

    IPC分类号： H03K5/151 ,  H03K7/08 ,  H03K3/017

    CPC分类号： H03K5/1515 ,  H03K7/08

    摘要： A driver for producing a desired pulse width modulated current through a load is provided with a sequencer for generating a plurality of wave forms phase-shifted so as to have non-overlapping duty cycles. A target generator supplies a target current value to a comparator, which compares the target current value to a signal representative of a sensed current flowing through the load. A driver control is responsive to a duty-cycle of only one of the plurality of wave forms to selectively generate trigger signals for switching current through the load in response to the result of the comparison.

    摘要翻译： 用于通过负载产生期望的脉冲宽度调制电流的驱动器设置有用于产生相移的多个波形以便具有非重叠占空比的定序器。 目标发生器将目标电流值提供给比较器，比较器将目标电流值与表示流过负载的感测电流的信号进行比较。 驱动器控制响应于多个波形中的仅一个的占空比响应于比较的结果来选择性地产生用于切换通过负载的电流的触发信号。

    Method and apparatus for controlling overlap of two fuel shots in multi-shot fuel injection events
    23.
    发明授权
    Method and apparatus for controlling overlap of two fuel shots in multi-shot fuel injection events 失效
    用于控制多次燃料喷射事件中两个燃料喷射重叠的方法和装置

    公开(公告)号：US06450149B1

    公开(公告)日：2002-09-17

    申请号：US09616121

    申请日：2000-07-13

    申请人： Brian G. McGee

    发明人： Brian G. McGee

    IPC分类号： F02B300

    CPC分类号： F02D41/403 ,  Y02T10/44

    摘要： A fuel injection control system and method for controlling a potential overlap of two fuel shots in a particular fuel injection event for an engine. A controller is coupled to a plurality of fuel injection devices associated with the engine and is operable to determine a cylinder first shot duration value based upon a predetermined nominal first shot duration value and a predetermined cylinder first shot duration trim value. The controller is further operable to retrieve a first shot advance value and a minimum second shot delay value associated with the cylinder and thereafter determine whether a first fuel shot in the particular fuel injection event will overlap in some fashion with a second fuel shot in that same fuel injection event based upon the cylinder first shot duration value and the retrieved values. The controller is further operable to either remove a portion of the first fuel shot that overlaps into a predetermined region of the particular fuel injection event or set the first fuel shot duration time to zero if it determines that a potential overlap situation will occur. The controller is further operable to load the cylinder first shot duration time thus determined for each cylinder in a computer readable medium associated with the respective cylinder during each fuel injection event.

    摘要翻译： 一种用于在发动机的特定燃料喷射事件中控制两个燃料喷射的潜在重叠的燃料喷射控制系统和方法。 控制器耦合到与发动机相关联的多个燃料喷射装置，并且可操作以基于预定的标称第一拍摄持续时间值和预定的气缸第一拍摄持续时间调整值来确定气缸第一拍摄持续时间值。 控制器还可操作以检索与气缸相关联的第一喷射提前值和最小第二喷射延迟值，然后确定在特定燃料喷射事件中喷射的第一燃料是否以某种方式与第一喷射事件中的第二燃料喷射重叠 基于气缸初始持续时间值和检索值的燃料喷射事件。 所述控制器还可操作以将所述第一燃料喷射的一部分重新排列到所述特定燃料喷射事件的预定区域中，或者如果确定发生潜在重叠情况，则将所述第一燃料喷射持续时间设置为零。 控制器还可操作以在每个燃料喷射事件期间将与每个气缸相关联的计算机可读介质中的每个气缸所确定的气缸第一喷射持续时间加载。

    Method for controlled transition between use of different injection waveform types in a hydraulically-actuated electronically-controlled fuel injection system
    26.
    发明授权
    Method for controlled transition between use of different injection waveform types in a hydraulically-actuated electronically-controlled fuel injection system 失效
    在液压致动电子控制燃料喷射系统中使用不同喷射波形类型之间的控制转换方法

    公开(公告)号：US6026780A

    公开(公告)日：2000-02-22

    申请号：US993591

    申请日：1997-12-18

    申请人： Travis E. Barnes ,  Michael S. Lukich ,  Brian G. McGee ,  Daniel R. Puckett ,  John P. Timmons

    发明人： Travis E. Barnes ,  Michael S. Lukich ,  Brian G. McGee ,  Daniel R. Puckett ,  John P. Timmons

    IPC分类号： F02D41/38 ,  F02D41/40 ,  F02B3/04 ,  F02M37/00

    CPC分类号： F02D41/3827 ,  F02D41/402 ,  Y02T10/44

    摘要： A method for controlling transfer from use of a first injection waveform type to use of a second injection waveform type in a hydraulically-actuated electronically-controlled fuel injection system of an engine includes sensing an engine speed and an engine load when the first injection waveform type is selected and storing the sensed engine speed and the sensed engine load. An actual engine speed is thereafter compared with the stored engine speed and an actual engine load is thereafter compared with the stored engine load. Transfer from use of the first injection waveform type to use of the second injection waveform type is prevented unless at least (i) a difference between the actual engine load and the stored engine load exceeds a predetermined load amount, or (ii) a difference between the actual engine speed and the stored engine speed exceeds a predetermined speed amount.

    摘要翻译： 用于在发动机的液压致动电子控制燃料喷射系统中控制从使用第一喷射波形类型到使用第二喷射波形类型的转移的方法包括当第一喷射波形类型 并且存储感测的发动机速度和感测的发动机负载。 此后，将实际的发动机转速与存储的发动机转速进行比较，然后将实际发动机负荷与存储的发动机负荷进行比较。 除非至少（i）实际发动机负荷与存储的发动机负荷之间的差异超过预定的负载量，否则，可以防止从使用第一喷射波形转换到使用第二喷射波形类型，或者（ii） 实际发动机速度和存储的发动机转速超过预定速度量。

    Method for delivering a small quantity of fuel with a hydraulically-actuated injector during split injection
    28.
    发明授权
    Method for delivering a small quantity of fuel with a hydraulically-actuated injector during split injection 失效
    在分流喷射期间用液压致动喷射器输送少量燃料的方法

    公开(公告)号：US5893347A

    公开(公告)日：1999-04-13

    申请号：US993994

    申请日：1997-12-18

    申请人： Brian G. McGee ,  John P. Timmons

    发明人： Brian G. McGee ,  John P. Timmons

    IPC分类号： F02D41/38 ,  F02D41/40 ,  F02M57/02 ,  F02B3/00

    CPC分类号： F02M57/025 ,  F02D41/403 ,  Y02T10/44

    摘要： A method for apportioning a total fuel quantity to be injected to an engine by a hydraulically-actuated injector between a pilot shot and a main shot includes determining a pilot shot and/or main shot fuel quantity desired to be delivered during injection. The desired pilot shot fuel quantity is compared with a threshold pilot shot fuel quantity and/or the desired main shot fuel quantity is compared with a threshold main shot fuel quantity. The total fuel quantity is delivered by a pilot shot if the desired pilot shot fuel quantity is less than the threshold pilot shot fuel quantity and/or the desired main shot fuel quantity is less than the threshold main shot fuel quantity.

    摘要翻译： 通过液压致动的喷射器在飞行员射击和主射击之间分配要喷射到发动机的总燃料量的方法包括确定期望在喷射期间传送的飞行员喷射和/或主喷射燃料量。 将所需的引燃喷射燃料量与阈值引燃喷射燃料量进行比较，和/或将期望的主喷射燃料量与阈值主喷射燃料量进行比较。 如果所需的引燃喷射燃料量小于阈值引燃喷射燃料量，和/或所需的主喷射燃料量小于阈值主喷射燃料量，则通过引燃喷射来传送总燃料量。

    Accurate deliver of total fuel when two injection events are closely coupled
    30.
    发明授权
    Accurate deliver of total fuel when two injection events are closely coupled 失效
    当两个注射事件紧密耦合时，准确地输送总燃料

    公开(公告)号：US06415762B1

    公开(公告)日：2002-07-09

    申请号：US09616004

    申请日：2000-07-13

    申请人： Gregory G. Hafner ,  Brian G. McGee

    发明人： Gregory G. Hafner ,  Brian G. McGee

    IPC分类号： F02B300

    CPC分类号： F02D41/3827 ,  F02B3/06 ,  F02D41/403 ,  F02D41/405 ,  Y02T10/44

    摘要： When two fuel shots such as the main and anchor fuel shots are closely coupled, the controller is operable to determine a total main and anchor fuel quantity, a main shot duration, and anchor delay. The total main and anchor fuel quantity is determined by subtracting a pilot shot fuel amount from the governor fuel output, and a sensor senses a rail pressure. If a triggering condition is met, preferably a main shot fuel amount being less than or equal to a minimum main shot fuel amount, the anchor duration is determined from a map using the main shot duration, anchor delay, rail pressure, and total main and anchor fuel quantity as factors for setting the anchor duration.

    摘要翻译： 当主燃料喷射和主燃料喷射两个燃料喷射紧密耦合时，控制器可操作地确定总主燃料量，主喷射持续时间和锚延迟。 通过从调速器燃料输出中减去先导喷射燃料量来确定总主燃料量和主燃料量，并且传感器感测轨道压力。 如果满足触发条件，优选主喷射燃料量小于或等于最小主喷燃料量，则使用主喷射持续时间，锚延迟，轨道压力和总主要的地图确定锚固持续时间，并且 锚定燃料量作为锚定持续时间的因素。