Method and system for controlling fuel pressure in a common rail fuel
injection system
    2.
    发明授权
    Method and system for controlling fuel pressure in a common rail fuel injection system 失效
    用于控制共轨燃油喷射系统中燃油压力的方法和系统

    公开(公告)号:US6016791A

    公开(公告)日:2000-01-25

    申请号:US867695

    申请日:1997-06-04

    IPC分类号: F02D41/38 F02M63/02 F02M37/04

    摘要: A system and method for controlling the fuel pressure in a common rail fuel injection system which electronically controls a variable output high pressure pump based upon engine speed, torque and actual common rail pressure inputs, as well as the present system voltage, thereby providing simple yet stable control of the fuel pressure in the accumulator of the common rail system which is relatively insensitive to supply voltage fluctuations from the power source providing the electrical power to the solenoid-controlled valve which controls the high pressure pump.

    摘要翻译: 一种用于控制共轨燃料喷射系统中的燃料压力的系统和方法,其基于发动机速度,扭矩和实际共轨压力输入以及当前的系统电压电子地控制可变输出高压泵,由此提供简单的 稳定地控制共轨系统的蓄压器中的燃料压力,其相对于从提供电力的电源向控制高压泵的电磁阀提供电力的电压波动相对不敏​​感。

    System and method for controlling fuel injections
    4.
    发明授权
    System and method for controlling fuel injections 有权
    控制燃油喷射的系统和方法

    公开(公告)号:US06516782B1

    公开(公告)日:2003-02-11

    申请号:US09321028

    申请日:1999-05-27

    申请人: Eric D. Thomas

    发明人: Eric D. Thomas

    IPC分类号: F02D4140

    摘要: A method for controlling fuel delivery from a fuel injector includes determining a first desired engine torque output; determining engine speed; determining a first quantity of fuel to be delivered by the fuel injector based on the first desired engine torque output and the engine speed; determining an injection pressure; and determining a first amount of time for energizing the fuel injector in order to deliver the first quantity of fuel based on the injection pressure. For a system capable of split injection, the method further includes determining a second desired engine torque output; determining a second quantity of fuel to be delivered by the fuel injector based on the second desired engine torque output and the engine speed; and determining a second amount of time for energizing the fuel injector in order to deliver the second quantity of fuel. The method and system of the invention provide more precise control of fuel delivery compared with prior systems and methods.

    摘要翻译: 用于控制来自燃料喷射器的燃料输送的方法包括确定第一期望的发动机扭矩输出; 确定发动机转速; 基于所述第一期望的发动机转矩输出和所述发动机转速确定由所述燃料喷射器输送的第一燃料量; 确定注射压力; 以及确定用于激励所述燃料喷射器的第一时间量,以便基于所述喷射压力输送所述第一量的燃料。 对于能够分裂喷射的系统,该方法还包括确定第二期望的发动机扭矩输出; 基于所述第二期望的发动机扭矩输出和所述发动机转速来确定由所述燃料喷射器输送的第二量的燃料; 以及确定用于激励所述燃料喷射器以便传送所述第二量的燃料的第二时间量。 与现有系统和方法相比,本发明的方法和系统提供了对燃料输送的更精确的控制。

    System and method for enhanced engine monitoring and protection
    5.
    发明授权
    System and method for enhanced engine monitoring and protection 有权
    用于增强发动机监控和保护的系统和方法

    公开(公告)号:US6131539A

    公开(公告)日:2000-10-17

    申请号:US345052

    申请日:1999-06-30

    申请人: Eric D. Thomas

    发明人: Eric D. Thomas

    摘要: A system and method for monitoring and controlling an engine based on an engine fluid pressure include sensing an engine fluid pressure, determining a current value for an engine operating parameter, determining whether the engine fluid pressure has crossed a first threshold corresponding to the current value of the engine operating parameter, determining whether the engine fluid pressure has crossed a second threshold corresponding to the current value of the engine operating parameter, generating a warning signal when the fluid pressure has crossed the first threshold but has not crossed the second threshold, and generating a shutdown signal when the fluid pressure has crossed the second threshold. In one embodiment, the second threshold is determined based on the first threshold by applying a constant offset value.

    摘要翻译: 基于发动机流体压力监测和控制发动机的系统和方法包括检测发动机流体压力,确定发动机运转参数的当前值,确定发动机流体压力是否已经超过对应于当前值的第一阈值 发动机操作参数,确定发动机流体压力是否已经超过对应于发动机运转参数的当前值的第二阈值,当流体压力已超过第一阈值但未超过第二阈值时产生警告信号,并产生 当流体压力超过第二阈值时的关闭信号。 在一个实施例中,通过应用恒定偏移值,基于第一阈值确定第二阈值。

    System and method for controlling fuel injections
    6.
    发明授权
    System and method for controlling fuel injections 有权
    控制燃油喷射的系统和方法

    公开(公告)号:US6125823A

    公开(公告)日:2000-10-03

    申请号:US321045

    申请日:1999-05-27

    申请人: Eric D. Thomas

    发明人: Eric D. Thomas

    摘要: A system and method for controlling fuel delivery from a fuel injector includes determining engine speed, determining a proposed pilot pulse width time based on engine speed, determining injection pressure, determining a proposed first quantity of fuel to be delivered by the fuel injector based on the proposed pilot pulse width time and injection pressure and determining a desired engine torque output. A desired total quantity of fuel to be delivered by the fuel injector is determined based on the desired engine torque output and engine speed. The proposed first quantity of fuel is compared with the desired total quantity of fuel. A desired first quantity of fuel to be delivered by the fuel injector is determined based on the desired engine torque output and engine speed if the proposed first quantity of fuel is greater than the desired total quantity of fuel. A desired pilot pulse width time is determined based on the desired first quantity of fuel and the injection pressure. A desired second quantity of fuel to be delivered by the fuel injector is determined by subtracting the proposed first quantity of fuel from the desired total quantity of fuel if the proposed first quantity of fuel is less than or equal to the desired first quantity of fuel. A main pulse width time is determined based on the desired second quantity of fuel and the injection pressure.

    摘要翻译: 用于控制来自燃料喷射器的燃料输送的系统和方法包括确定发动机速度,基于发动机速度确定提出的导频脉冲宽度时间,确定喷射压力,基于所述燃料喷射器确定所提供的燃料喷射器将要传送的第一数量的燃料 提出了导频脉冲宽度时间和注入压力,并确定了所需的发动机转矩输出。 基于期望的发动机扭矩输出和发动机转速来确定由燃料喷射器输送的期望的燃料总量。 将所提出的第一数量的燃料与期望的总燃料量进行比较。 如果所提出的第一燃料量大于期望的燃料总量,则基于期望的发动机转矩输出和发动机转速确定由燃料喷射器输送的期望的第一量的燃料。 基于期望的第一燃料量和喷射压力来确定期望的导频脉冲宽度时间。 如果所提出的第一数量的燃料小于或等于期望的第一燃料量,则由燃料喷射器输送的期望的第二量的燃料被确定为从期望的总燃料量中减去所提出的第一量的燃料。 基于期望的第二燃料量和喷射压力确定主脉冲宽度时间。

    GAS/LIQUID MIXING DEVICE FOR DIESEL EXHAUST AFTERTREATMENT
    8.
    发明申请
    GAS/LIQUID MIXING DEVICE FOR DIESEL EXHAUST AFTERTREATMENT 有权
    用于柴油机排气的气体/液体混合装置

    公开(公告)号:US20110214415A1

    公开(公告)日:2011-09-08

    申请号:US12715946

    申请日:2010-03-02

    申请人: Eric D. Thomas

    发明人: Eric D. Thomas

    IPC分类号: F01N3/035 F01N3/10 F01N1/00

    摘要: An exhaust gas treatment system for an internal combustion engine comprises an exhaust gas conduit configured to receive and to deliver exhaust gas to a downstream exhaust treatment device. An injector bay extends outwardly from the exhaust gas conduit upstream of the exhaust treatment device and an exhaust fluid injector mounts through an opening in the injector bay and is in fluid communication with the exhaust gas conduit and oriented in an upstream direction to deliver an exhaust fluid to the exhaust gas in the upstream direction. An exhaust flow baffle extends outwardly from the injector bay and into the exhaust gas in an upstream direction. The exhaust flow baffle is located upstream of the exhaust fluid injector and is configured to define a turbulent, low pressure velocity field downstream thereof and proximate to the exhaust fluid injector.

    摘要翻译: 用于内燃机的废气处理系统包括排气导管,该排气导管构造成接收并将废气输送到下游排气处理装置。 注射器隔间从排气处理装置上游的废气管道向外延伸,并且排气流体注入器通过注射器隔间中的开口安装并与排气管道流体连通并且沿上游方向定向以输送排出流体 到上游方向的废气。 排气流挡板从喷射器舱向外延伸并沿上游方向进入废气。 排气流动挡板位于排气流体注入器的上游,并且构造成限定其下游并且靠近排气流体注入器的湍流低压速度场。

    Controller and storage medium for detecting cold engine operation

    公开(公告)号:US06445997B1

    公开(公告)日:2002-09-03

    申请号:US09829090

    申请日:2001-04-09

    申请人: Eric D. Thomas

    发明人: Eric D. Thomas

    IPC分类号: G06F1900

    摘要: An engine controller and computer readable storage medium for detecting cold engine operation include determining at least two fluid temperatures and providing an output signal based on the at least two temperatures. Preferably, an engine coolant temperature, an intercooler temperature, and an engine air temperature are determined via appropriate temperature sensors. In one embodiment, the cold engine output signal is activated or asserted if any one of the at least two fluid temperatures is below a corresponding temperature threshold. The cold engine output signal is deactivated when all of the fluid temperatures are above corresponding temperature thresholds (plus hysteresis where applicable). An optional user-selectable parameter provides for actuation of the cold engine output only during idle. The cold engine output signal may be used to control various accessories including coolant heating systems, shutters, or the like. Additional parasitic loads or an exhaust brake may be actuated to increase combustion temperatures by increasing engine load to reduce or eliminate white smoke.

    Gas/liquid mixing device for diesel exhaust aftertreatment
    10.
    发明授权
    Gas/liquid mixing device for diesel exhaust aftertreatment 有权
    用于柴油机废气后处理的气/液混合装置

    公开(公告)号:US08621846B2

    公开(公告)日:2014-01-07

    申请号:US12715946

    申请日:2010-03-02

    申请人: Eric D. Thomas

    发明人: Eric D. Thomas

    IPC分类号: F01N3/00

    摘要: An exhaust gas treatment system for an internal combustion engine comprises an exhaust gas conduit configured to receive and to deliver exhaust gas to a downstream exhaust treatment device. An injector bay extends outwardly from the exhaust gas conduit upstream of the exhaust treatment device and an exhaust fluid injector mounts through an opening in the injector bay and is in fluid communication with the exhaust gas conduit and oriented in an upstream direction to deliver an exhaust fluid to the exhaust gas in the upstream direction. An exhaust flow baffle extends outwardly from the injector bay and into the exhaust gas in an upstream direction. The exhaust flow baffle is located upstream of the exhaust fluid injector and is configured to define a turbulent, low pressure velocity field downstream thereof and proximate to the exhaust fluid injector.

    摘要翻译: 用于内燃机的废气处理系统包括排气导管,该排气导管构造成接收并将废气输送到下游排气处理装置。 注射器隔间从排气处理装置上游的废气管道向外延伸,并且排气流体注入器通过注射器隔间中的开口安装并与排气管道流体连通并且沿上游方向定向以输送排出流体 到上游方向的废气。 排气流挡板从喷射器舱向外延伸并沿上游方向进入废气。 排气流动挡板位于排气流体注入器的上游,并且构造成限定其下游并且靠近排气流体注入器的湍流低压速度场。