Dynamic fuel injection control pressure set-point limits
    1.
    发明授权
    Dynamic fuel injection control pressure set-point limits 有权
    动态燃油喷射控制压力设定值限制

    公开(公告)号:US06973923B1

    公开(公告)日:2005-12-13

    申请号:US10894981

    申请日:2004-07-20

    IPC分类号: F02D41/38 F02M37/04 F02M57/02

    摘要: An internal combustion engine fuel system applies injection control pressure to fuel injectors (26) to force fuel into combustion chambers (28). A processor of a control system (22) develops data values for injection control pressure set-point (ICPC—T13) representing desired injection control pressure and evaluates (134) the injection control pressure set-point data values for compliance with an allowable dynamic range defined by a data value for a minimum dynamic limit correlated with engine speed (N) from a function generator (132) and a data value for a maximum dynamic limit correlated with engine temperature (EOT) from a function generator (130). The processor limits the data value of desired injection control pressure that is subsequently processed to control injection control pressure applied by the fuel system to the fuel injectors to the allowable dynamic range.

    摘要翻译: 内燃机燃料系统向燃料喷射器(26)施加喷射控制压力以迫使燃料进入燃烧室(28)。 控制系统(22)的处理器开发表示期望的喷射控制压力的喷射控制压力设定点(ICPC < - > T13)的数据值,并评估(134)喷射控制压力设定值数据值 用于符合由功能发生器(132)的与发动机转速(N)相关的最小动态极限的数据值所规定的允许动态范围和与来自功能的发动机温度(EOT)相关的最大动态极限的数据值 发电机(130)。 处理器限制随后处理的期望喷射控制压力的数据值,以控制由燃料系统施加到燃料喷射器的喷射控制压力达到允许的动态范围。

    Map-scheduled gains for closed-loop control of fuel injection pressure
    2.
    发明授权
    Map-scheduled gains for closed-loop control of fuel injection pressure 有权
    燃油喷射压力闭环控制的地图预定增益

    公开(公告)号:US06850832B1

    公开(公告)日:2005-02-01

    申请号:US10692866

    申请日:2003-10-24

    摘要: A schedule (164, 166) correlates data values of closed-loop gain (KP, KI) with engine temperature values (EOT) and engine speed values (N). A control strategy develops a data value (ICPC_DES) representing desired injector control pressure (ICP) set-point, processes ICPC_DES and a data value (ICP_MPA) representing actual ICP to develop ICP error data value (ICP_ERR) for closed-loop P-I control (160, 162) of actual ICP. Data values for closed-loop proportional and integral gains are obtained from the schedule based on measured engine temperature and measured engine speed. ICP become less subject to undesirable fluctuations that might otherwise change fuel injection quantity in ways detrimental to attainment of desired tailpipe emission objectives.

    摘要翻译: 时间表(164,166)将闭环增益(KP,KI)的数据值与发动机温度值(EOT)和发动机转速值(N)相关联。 控制策略开发表示所需喷射器控制压力(ICP)设定点的数据值(ICPC_DES),处理ICPC_DES和表示实际ICP的数据值(ICP_MPA),以开发用于闭环PI控制的ICP误差数据值(ICP_ERR) 160,162)。 基于测量的发动机温度和测量的发动机转速,从时间表中获得闭环比例和积分增益的数据值。 ICP变得更少受不期望的波动的影响,否则可能以不利于达到期望的排气管排放目标的方式改变燃料喷射量。

    Apparatus and Method for Protecting Against Fouling of an Exhaust Gas Recirculation Valve
    3.
    发明申请
    Apparatus and Method for Protecting Against Fouling of an Exhaust Gas Recirculation Valve 审中-公开
    用于防止排气再循环阀结垢的装置和方法

    公开(公告)号:US20110041816A1

    公开(公告)日:2011-02-24

    申请号:US12545906

    申请日:2009-08-24

    IPC分类号: F02M25/07 F02B47/08

    摘要: This invention relates to a method for protecting an exhaust gas recirculation (EGR) valve from fouling due to hydrocarbon condensation at low EGR cooler outlet exhaust temperatures. In modern internal combustion engines exhaust gas recirculation (EGR) valves provide a means to recirculate exhaust gases into the intake air stream. The EGR valve regulates the flow of exhaust gas entering the stream. The EGR valve can experience fouling due to the condensation of hydrocarbons at low EGR cooler outlet exhaust temperatures. Typically, fouling occurs when the internal combustion engine is operating at relatively low temperatures, namely during low speed and/or low torque operations. The effects of fouling an EGR valve include higher emission levels, reduction in fuel economy, and rough idling.

    摘要翻译: 本发明涉及一种用于在低EGR冷却器出口排气温度下由于烃冷凝而保护废气再循环(EGR)阀免于结垢的方法。 在现代内燃机中,废气再循环(EGR)阀提供了将废气再循环到进气流中的手段。 EGR阀调节进入流的废气流。 EGR阀可能由于在低EGR冷却器出口排气温度下的碳氢化合物而经历结垢。 通常,当内燃机在相对较低的温度下操作时,即在低速和/或低扭矩操作期间发生结垢。 污染EGR阀的效果包括更高的排放水平,降低燃油经济性和粗糙的空转。

    Engine cold start aid malfunction alert
    4.
    发明申请
    Engine cold start aid malfunction alert 有权
    发动机冷启动辅助故障警报

    公开(公告)号:US20060272606A1

    公开(公告)日:2006-12-07

    申请号:US11147550

    申请日:2005-06-07

    IPC分类号: F02P19/02

    CPC分类号: F02P19/027 F02D2041/228

    摘要: A motor vehicle engine (10) has a glow plug system (14) for aiding combustion of fuel in combustion chambers of the engine when the engine is cold and an ignition switch (16) is operated to crank the engine. A first circuit signals the cold start aid to commence operation of the cold start aid in anticipation of engine starting. A second circuit indicates a fault in the cold start aid. A third circuit, that includes a warning signal device (38), activates the warning signal device to inform a driver of the vehicle of the indicated fault upon the first circuit having signaled the cold start aid to commence operation and the second circuit having indicated a fault in the cold start aid.

    摘要翻译: 机动车辆发动机(10)具有电热塞系统(14),用于在发动机冷时使燃料燃烧在发动机的燃烧室中,并且操作点火开关(16)以起动发动机。 第一回路发信号通知冷启动辅助装置以开始启动冷启动辅助装置的运行。 第二个电路表示冷起动辅助装置中的故障。 包括警告信号装置(38)的第三电路激活警告信号装置,以在第一电路通知冷启动辅助装置开始运行的情况下通知车辆的指示故障的车辆,并且第二电路指示为 冷启动辅助故障。

    Controlling an engine operating parameter during transients in a control data input by selection of the time interval for calculating the derivative of the control data input
    5.
    发明授权
    Controlling an engine operating parameter during transients in a control data input by selection of the time interval for calculating the derivative of the control data input 有权
    通过选择计算控制数据输入的导数的时间间隔来控制控制数据输入中的瞬变期间的发动机工作参数

    公开(公告)号:US06973382B2

    公开(公告)日:2005-12-06

    申请号:US10809235

    申请日:2004-03-25

    摘要: Desired engine fueling data FQL—MFD—TQL is processed by a derivative variable time function (40) embodied in an algorithm to develop a data value EGR—MFD—DER representing the time derivative of desired fueling. The algorithm comprises certain selectable parameters (EGR—DTS, EGR—MFD—KF, EGR—MFD—KD). An iteration of the algorithm includes processing FQL—MFD—TQL according to a first function (40A) to yield a first data value and according to a second function (40B) to yield a second data value. A third function (40C) subtracts the second data value from the first to yield a data value for the time derivative that forms one input to a map (42). A second input to the map is a data value for mass airflow (MAF—GMS). The map provides data for calculating the set point of an EGR valve (36). The invention provides improved control of EGR during fueling transients.

    摘要翻译: 期望的发动机燃料供应数据FQL通过体现在算法中的导数可变时间函数(40)来处理TQL以产生数据值EGR < - > SUB> MFD DER表示所需加油的时间导数。 该算法包括某些可选择的参数(EGR, - DTS, - LF&gt; MFD&lt;&lt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; > - KD)。 算法的迭代包括根据第一函数(40A)处理FQL MFD TQL以产生第一数据值并根据第二函数(40B )以产生第二数据值。 第三功能(40C)从第一功能(40C)中减去第二数据值,以产生对地图(42)形成一个输入的时间导数的数据值。 地图的第二个输入是质量气流的数据值(MAF - GMS)。 地图提供用于计算EGR阀(36)的设定点的数据。 本发明提供了在加油瞬变期间对EGR的改进的控制。

    Exhaust gas control in an engine having a two-stage turbocharger
    6.
    发明授权
    Exhaust gas control in an engine having a two-stage turbocharger 有权
    具有两级涡轮增压器的发动机中的排气控制

    公开(公告)号:US06801846B1

    公开(公告)日:2004-10-05

    申请号:US10692948

    申请日:2003-10-24

    IPC分类号: F02D2300

    摘要: A control system (58) for controlling the extent to which a valve (50) selectively by-passes exhaust flow around one of two turbines (18T, 20T) in an engine exhaust system (14). A desired set-point (TCBC_DES) and the actual set-point of operation of the valve are used to develop a set-point error for closed-loop control of the actual set-point. A data value for closed-loop gain is selected from a schedule (164, 166) based on engine speed and fueling. The selected data value of closed-loop gain and the set-point error data value are used to create a data value for a closed-loop output (TCBC_DTY_PIF) that is used to create a data value for a final output for forcing the actual set-point to the desired set-point.

    摘要翻译: 一种控制系统(58),用于控制阀(50)在多大程度上选择性地绕过发动机排气系统(14)中的两个涡轮机(18T,20T)之一的排气流。 使用期望的设定点(TCBC_DES)和阀的实际操作设定点来开发用于实际设定点的闭环控制的设定点误差。 基于发动机速度和加油从调度(164,166)中选择闭环增益的数据值。 所选择的闭环增益数据值和设定值误差数据值用于创建一个闭环输出(TCBC_DTY_PIF)的数据值,该数据值用于创建最终输出的数据值以强制实际设置 指向所需的设定点。

    Torque-based low idle governor
    7.
    发明授权
    Torque-based low idle governor 有权
    基于扭矩的低空调机

    公开(公告)号:US06654678B1

    公开(公告)日:2003-11-25

    申请号:US10385046

    申请日:2003-03-10

    申请人: Rogelio Rodriguez

    发明人: Rogelio Rodriguez

    IPC分类号: G60T712

    摘要: An engine control system (10, 12) and method for improving stability of engine running speed when torque subtractions (TTS) from gross torque change while the engine (14) is running at a constant speed, such as at low idle speed. Engine speed error data (Nerror) is processed according to one or more control functions (52, 54, 56) each having gain determined by the torque subtraction data value via function generators (58, 60, 62) to develop fueling adjustment data (P-FGT, I-FGT, D-FGT) for compensating desired engine fueling (MFDES) for the torque subtraction data (TTS).

    摘要翻译: 一种发动机控制系统(10,12)和用于在发动机(14)以低速怠速运行的恒定速度下从转矩减法(TTS)转矩减法(TTS)改善发动机运行速度的稳定性的方法。 根据通过功能发生器(58,60,62)由扭矩减去数据值确定的增益的一个或多个控制功能(52,54,56)处理发动机速度误差数据(Nerror),以显示加油调节数据(P -FGT,I-FGT,D-FGT),用于补偿用于扭矩减除数据(TTS)的所需发动机加油(MFDES)。

    System And Method For Indicating Apparent Vehicle Service Brake Application Without Apparent Operation Of Service Brack Actuator
    9.
    发明申请
    System And Method For Indicating Apparent Vehicle Service Brake Application Without Apparent Operation Of Service Brack Actuator 有权
    表示车辆行驶制动应用的系统和方法,无明显操作的辅助执行机构

    公开(公告)号:US20100145565A1

    公开(公告)日:2010-06-10

    申请号:US12497201

    申请日:2009-07-02

    IPC分类号: G06F19/00 B60T8/88

    CPC分类号: B60T8/885 B60T2270/413

    摘要: A motor vehicle (10) has wheels (22F, 22R) on which it travels, a powertrain (12) for delivering propulsion torque to at least some of the wheels to propel the vehicle, and a service brake system (24) having service brakes (28). When the service brakes are applied by a service brake actuator (26), braking torque is applied to at least some of the wheels. A first device (36) provides data representing a velocity that correlates with velocity of the vehicle, and a second device (38) associated with the actuator provides data that distinguishes between application and non-application of the service brakes by the actuator. A processor (34) monitors data from the first and second devices and processes the monitored data (FIG. 2) to provide a data output BPP_FLT when the first device has disclosed velocity change indicative of the service brakes having been applied without the second device having disclosed that the service brakes have been applied.

    摘要翻译: 机动车辆(10)具有在其上行进的轮子(22F,22R),用于将至少一些轮子推进推进力的动力传动系统(12)推进车辆;以及行车制动系统(24),其具有行车制动器 (28)。 当由行车制动器致动器(26)施加行车制动时,对至少一些车轮施加制动转矩。 第一装置(36)提供表示与车辆的速度相关的速度的数据,并且与致动器相关联的第二装置(38)提供通过致动器来区分应用和不施加行车制动器的数据。 处理器(34)监视来自第一和第二设备的数据并处理所监视的数据(图2),以在第一设备已经公开了指示已经施加的业务制动器的速度变化而没有第二设备具有数据输出BPP_FLT时 披露了服务制动器已被应用。

    High pressure oil limit based on fuel level to protect fuel injectors
    10.
    发明授权
    High pressure oil limit based on fuel level to protect fuel injectors 失效
    基于燃油液位的高压油极限,以保护燃油喷射器

    公开(公告)号:US07702449B2

    公开(公告)日:2010-04-20

    申请号:US12184841

    申请日:2008-08-01

    IPC分类号: F02M37/04 F02M7/00

    摘要: A first fuel value (FL_Signal) indicative of the quantity of fuel presently in a fuel tank (34) and a second fuel value (FL_LOW_THLD) representing a quantity of fuel in the tank at which a maximum Injection Control Pressure (ICP) limit should be changed are processed by a processor (22). When the result of the processing discloses that the second fuel value is less than the first fuel value, the maximum ICP limit is reduced from a greater value (ICPC_NORMAL_LMX) to a lesser value (ICPC_FL_LMX).

    摘要翻译: 指示当前在燃料箱(34)中的燃料量的第一燃料值(FL_Signal)和表示最大喷射控制压力(ICP)极限应该在罐中的燃料量的第二燃料值(FL_LOW_THLD) 改变的处理器(22)处理。 当处理结果公开了第二燃料值小于第一燃料值时,最大ICP限制从较大值(ICPC_NORMAL_LMX)减小到较小值(ICPC_FL_LMX)。