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    Fuel injector control system and method
    2.
    发明申请
    Fuel injector control system and method 有权
    燃油喷射器控制系统及方法

    公开(公告)号：US20060266335A1

    公开(公告)日：2006-11-30

    申请号：US11139685

    申请日：2005-05-31

    申请人： Travis Barnes ,  Rammohan Sankar ,  Daniel Li

    发明人： Travis Barnes ,  Rammohan Sankar ,  Daniel Li

    IPC分类号： F02M47/02 ,  F02M57/02 ,  F02M59/46

    CPC分类号： F02M63/0015 ,  F02M45/02 ,  F02M47/027 ,  F02M57/023 ,  F02M59/366

    摘要： A fuel injector for an internal combustion engine is disclosed. The fuel injector has a plunger, an electronically controlled check valve, and a controller in communication with the electronically controlled check valve. The controller is configured to receive a indication of a desired start of injection timing relative to an angular position of a crankshaft of the engine, and a desired injection quantity. The controller is also configured to determine a displacement of the plunger based on an angular position of the crankshaft; to determine a start of current for the electronically controlled check valve relative to plunger displacement that results in the desired start of injection timing, and to determine an end of current for the electronically controlled check valve relative to plunger displacement that results in the desired injection quantity. The controller is further configured to affect the determined start and end of current for the electronically controlled check valve.

    摘要翻译： 公开了一种用于内燃机的燃料喷射器。 燃料喷射器具有柱塞，电控止回阀和与电控止回阀连通的控制器。 控制器被配置为接收相对于发动机的曲轴的角位置和期望的喷射量的期望的喷射正时开始的指示。 控制器还构造成基于曲轴的角位置来确定柱塞的位移; 以确定电子控制止回阀相对于柱塞位移的电流开始，其导致所需的喷射正时开始，并且确定电子控制止回阀相对于柱塞位移的电流的结束，其导致期望的喷射量 。 控制器还被配置为影响电子控制止回阀确定的电流开始和结束。

    EGR flow measurement
    3.
    发明授权
    EGR flow measurement 有权
    EGR流量测量

    公开(公告)号：US09068502B2

    公开(公告)日：2015-06-30

    申请号：US13231106

    申请日：2011-09-13

    申请人： Gurpreet Gambhir ,  Rammohan Sankar ,  Travis Barnes ,  Zenebe Gete

    发明人： Gurpreet Gambhir ,  Rammohan Sankar ,  Travis Barnes ,  Zenebe Gete

    IPC分类号： F02M25/07 ,  F02B47/08 ,  F01N3/00 ,  G06F19/00

    CPC分类号： F02B47/08 ,  F01N3/00 ,  F02D41/0072 ,  F02D2021/083 ,  F02M26/43 ,  G06F19/00 ,  Y02T10/121 ,  Y02T10/47

    摘要： A system and method for measuring an EGR flow rate for an engine having an EGR valve with a selectable EGR valve position and a venturi sensor situated to take a differential pressure measurement relative to recirculated exhaust gas includes determining an EGR valve effective area based on the EGR valve position, determining a weighting factor based on the effective area, calculating a first EGR flow estimate based on the effective area, and calculating a second EGR flow estimate based on the differential pressure measurement of the venturi sensor. A final EGR flow rate is determined based on the weighting factor, the first EGR flow estimate, and the second EGR flow estimate.

    摘要翻译： 一种用于测量具有具有可选EGR阀位置的EGR阀和相对于再循环废气进行差压测量的文氏管传感器的发动机的EGR流量的系统和方法包括基于EGR确定EGR阀有效面积 阀位置，基于有效面积确定加权因子，基于有效面积计算第一EGR流量估计，以及基于文丘里管传感器的差压测量来计算第二EGR流量估计。 基于加权因子，第一EGR流量估计和第二EGR流量估计来确定最终EGR流量。

    Pump control system
    5.
    发明申请
    Pump control system 有权
    泵控制系统

    公开(公告)号：US20070023009A1

    公开(公告)日：2007-02-01

    申请号：US11192037

    申请日：2005-07-29

    申请人： Christopher Elliott ,  Scott Schuricht ,  Travis Barnes

    发明人： Christopher Elliott ,  Scott Schuricht ,  Travis Barnes

    IPC分类号： F02M57/02 ,  F02M59/36 ,  F04B49/00

    CPC分类号： F02M59/366 ,  F02M63/0225

    摘要： A pump for a fuel system is disclosed. The pump has a housing defining at least one pumping chamber, and a plunger. The plunger is movable to draw a fluid into and displace the fluid from the at least one pumping chamber. The pump also has a metering valve and a controller. The metering valve has a valve element movable to selectively meter fluid drawn into the at least one pumping chamber. The controller is configured to receive an indication of a desired discharge characteristic and reference a first map to determine an inlet opening area corresponding to the desired discharge characteristic. The controller is also configured to reference a second map to determine a position of the metering valve corresponding to the determined inlet opening area, and to send a control signal to the metering valve indicative of the determined position.

    摘要翻译： 公开了一种用于燃料系统的泵。 泵具有限定至少一个泵送室的壳体和柱塞。 柱塞可移动以将流体吸入并移动来自至少一个泵送室的流体。 泵还具有计量阀和控制器。 计量阀具有可移动的阀元件，用于选择性地计量流入至少一个泵送室的流体。 控制器被配置为接收期望的放电特性的指示并且参考第一映射以确定对应于期望的放电特性的入口开口面积。 控制器还被配置为引用第二映射以确定对应于确定的入口开口面积的计量阀的位置，并且向计量阀发送指示所确定的位置的控制信号。

    COMPRESSION RELEASE ENGINE BRAKE CONTROL USING SPEED ERROR
    9.
    发明申请
    COMPRESSION RELEASE ENGINE BRAKE CONTROL USING SPEED ERROR 有权
    使用速度错误的压缩释放发动机制动控制

    公开(公告)号：US20050034704A1

    公开(公告)日：2005-02-17

    申请号：US10640491

    申请日：2003-08-13

    申请人： Travis Barnes ,  Ronald Shinogle

    发明人： Travis Barnes ,  Ronald Shinogle

    IPC分类号： F02D13/04 ,  F02D31/00

    CPC分类号： F02D13/04 ,  F02D31/001

    摘要： The minimum desired engine speed for engaging engine braking varies. The disclosed method includes determining a speed error by subtracting the desired engine speed from the actual engine speed, comparing the speed error to an error threshold, and generating a brake enable command if the speed error is greater than or equal to the error threshold.

    摘要翻译： 用于接合发动机制动的最小期望发动机转速变化。 所公开的方法包括通过从实际发动机速度减去所需发动机转速来确定速度误差，将速度误差与误差阈值进行比较，以及如果速度误差大于或等于误差阈值则产生制动使能指令。