Diagnostic systems and methods for fuel injectors in homogenous charge compression ignition engine systems
    1.
    发明授权
    Diagnostic systems and methods for fuel injectors in homogenous charge compression ignition engine systems 有权
    燃料喷射器在均质充气压缩点火发动机系统中的诊断系统和方法

    公开(公告)号:US08118010B2

    公开(公告)日:2012-02-21

    申请号:US12574114

    申请日:2009-10-06

    IPC分类号: F02M7/28

    摘要: An engine control system for a homogenous charge compression ignition (HCCI) engine includes a fuel injector temperature determination module and a fuel injector control module. The fuel injector temperature determination module determines a temperature of a tip of a fuel injector based on a first temperature model when the HCCI engine is operating in an HCCI combustion mode, and determines the temperature of the tip of the fuel injector based on a second temperature model when the HCCI engine is operating in a spark ignition (SI) combustion mode. The fuel injector control module controls a fuel injector pulse width based on the determined temperature and a predetermined temperature threshold, wherein the fuel injector pulse width increases when the determined temperature is greater than the predetermined temperature threshold.

    摘要翻译: 用于均质充气压缩点火(HCCI)发动机的发动机控制系统包括燃料喷射器温度确定模块和燃料喷射器控制模块。 当HCCI发动机以HCCI燃烧模式操作时,燃料喷射器温度确定模块基于第一温度模型确定燃料喷射器的尖端的温度,并且基于第二温度来确定燃料喷射器的尖端的温度 HCCI发动机在火花点火(SI)燃烧模式下运行时的型号。 燃料喷射器控制模块基于所确定的温度和预定温度阈值来控制燃料喷射器脉冲宽度,其中当所确定的温度大于预定温度阈值时,燃料喷射器脉冲宽度增加。

    DIAGNOSTIC SYSTEMS AND METHODS FOR FUEL INJECTORS IN HOMOGENOUS CHARGE COMPRESSION IGNITION ENGINE SYSTEMS
    2.
    发明申请
    DIAGNOSTIC SYSTEMS AND METHODS FOR FUEL INJECTORS IN HOMOGENOUS CHARGE COMPRESSION IGNITION ENGINE SYSTEMS 有权
    燃料喷射器在均匀充气压力点火发动机系统中的诊断系统和方法

    公开(公告)号:US20110079193A1

    公开(公告)日:2011-04-07

    申请号:US12574114

    申请日:2009-10-06

    IPC分类号: F02B17/00 F02M7/00

    摘要: An engine control system for a homogenous charge compression ignition (HCCI) engine includes a fuel injector temperature determination module and a fuel injector control module. The fuel injector temperature determination module determines a temperature of a tip of a fuel injector based on a first temperature model when the HCCI engine is operating in an HCCI combustion mode, and determines the temperature of the tip of the fuel injector based on a second temperature model when the HCCI engine is operating in a spark ignition (SI) combustion mode. The fuel injector control module controls a fuel injector pulse width based on the determined temperature and a predetermined temperature threshold, wherein the fuel injector pulse width increases when the determined temperature is greater than the predetermined temperature threshold.

    摘要翻译: 用于均质充气压缩点火(HCCI)发动机的发动机控制系统包括燃料喷射器温度确定模块和燃料喷射器控制模块。 当HCCI发动机以HCCI燃烧模式操作时,燃料喷射器温度确定模块基于第一温度模型确定燃料喷射器的尖端的温度,并且基于第二温度来确定燃料喷射器的尖端的温度 HCCI发动机在火花点火(SI)燃烧模式下运行时的型号。 燃料喷射器控制模块基于所确定的温度和预定温度阈值来控制燃料喷射器脉冲宽度,其中当所确定的温度大于预定温度阈值时,燃料喷射器脉冲宽度增加。

    Diagnostic systems and methods for sensors in homogenous charge compression ignition engine systems
    3.
    发明授权
    Diagnostic systems and methods for sensors in homogenous charge compression ignition engine systems 有权
    用于均质充气压缩点火发动机系统的传感器的诊断系统和方法

    公开(公告)号:US08255143B2

    公开(公告)日:2012-08-28

    申请号:US12512459

    申请日:2009-07-30

    IPC分类号: G01M15/02 G01M15/00

    摘要: An engine control system for a homogenous charge compression ignition (HCCI) engine includes an airflow determination module and a sensor diagnostic module. The airflow determination module generates a first plurality of estimates of airflow into the HCCI engine when the HCCI engine is operating in a first combustion mode, wherein the first plurality of estimates are based on an intake manifold absolute pressure (MAP), a mass air flow (MAF) rate, and a camshaft position. The sensor diagnostic module determines a state of at least one of a first plurality of sensors based on a predetermined threshold and differences between one of the first plurality of estimates and others of the first plurality of estimates, wherein the first plurality of sensors includes a MAP sensor, a MAF sensor, and a camshaft sensor.

    摘要翻译: 用于均质充气压缩点火(HCCI)发动机的发动机控制系统包括气流确定模块和传感器诊断模块。 当HCCI发动机以第一燃烧模式操作时,气流确定模块产生对HCCI发动机的气流的第一多个估计值,其中第一多个估计值基于进气歧管绝对压力(MAP),质量空气流量 (MAF)速率和凸轮轴位置。 所述传感器诊断模块基于预定阈值来确定第一多个传感器中的至少一个的状态,以及所述第一多个估计中的一个与所述第一多个估计中的另一个之间的差异,其中所述第一多个传感器包括MAP 传感器,MAF传感器和凸轮轴传感器。

    DIAGNOSTIC SYSTEMS AND METHODS FOR SENSORS IN HOMOGENOUS CHARGE COMPRESSION IGINTION ENGINE SYSTEMS
    4.
    发明申请
    DIAGNOSTIC SYSTEMS AND METHODS FOR SENSORS IN HOMOGENOUS CHARGE COMPRESSION IGINTION ENGINE SYSTEMS 有权
    均匀充气压缩发动机系统中传感器的诊断系统和方法

    公开(公告)号:US20110029216A1

    公开(公告)日:2011-02-03

    申请号:US12512459

    申请日:2009-07-30

    IPC分类号: F02D45/00 F02B9/02

    摘要: An engine control system for a homogenous charge compression ignition (HCCI) engine includes an airflow determination module and a sensor diagnostic module. The airflow determination module generates a first plurality of estimates of airflow into the HCCI engine when the HCCI engine is operating in a first combustion mode, wherein the first plurality of estimates are based on an intake manifold absolute pressure (MAP), a mass air flow (MAF) rate, and a camshaft position. The sensor diagnostic module determines a state of at least one of a first plurality of sensors based on a predetermined threshold and differences between one of the first plurality of estimates and others of the first plurality of estimates, wherein the first plurality of sensors includes a MAP sensor, a MAF sensor, and a camshaft sensor.

    摘要翻译: 用于均质充气压缩点火(HCCI)发动机的发动机控制系统包括气流确定模块和传感器诊断模块。 当HCCI发动机以第一燃烧模式操作时,气流确定模块产生对HCCI发动机的气流的第一多个估计值,其中第一多个估计值基于进气歧管绝对压力(MAP),质量空气流量 (MAF)速率和凸轮轴位置。 所述传感器诊断模块基于预定阈值来确定第一多个传感器中的至少一个的状态,以及所述第一多个估计中的一个与所述第一多个估计中的另一个之间的差异,其中所述第一多个传感器包括MAP 传感器,MAF传感器和凸轮轴传感器。

    Control system and method for low quantity fuel injection
    7.
    发明授权
    Control system and method for low quantity fuel injection 有权
    低量燃油喷射控制系统及方法

    公开(公告)号:US08452520B2

    公开(公告)日:2013-05-28

    申请号:US12791385

    申请日:2010-06-01

    IPC分类号: F02D41/30 G06F17/00

    摘要: A control system for an engine includes a parameter determination module and a period determination module. The parameter determination module determines a first fuel injection parameter based on a rate of change of a quantity of fuel injected during a period, and determines a second fuel injection parameter based on an initial quantity of fuel injected during the period. The period determination module determines a desired fuel injection period based on a desired fuel injection quantity, the first and second fuel injection parameters, and at least one of mass air flow (MAF) rate, intake air temperature (IAT), fuel injector pressure (FIP), engine coolant temperature (ECT), and exhaust gas air/fuel (A/F) ratio.

    摘要翻译: 用于发动机的控制系统包括参数确定模块和周期确定模块。 参数确定模块基于在一段时间内喷射的燃料量的变化率来确定第一燃料喷射参数,并且基于在该时段期间喷射的燃料的初始量来确定第二燃料喷射参数。 周期确定模块基于期望的燃料喷射量,第一和第二燃料喷射参数以及质量空气流量(MAF)速率,进气温度(IAT),燃料喷射器压力(IAT)中的至少一个来确定期望的燃料喷射周期 FIP),发动机冷却液温度(ECT)和废气空气/燃料(A / F)比。

    SYSTEM AND METHOD FOR CONTROLLING A CATALYST TEMPERATURE IN AN HCCI COMBUSTION ENGINE
    8.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING A CATALYST TEMPERATURE IN AN HCCI COMBUSTION ENGINE 有权
    用于控制HCCI燃烧发动机中催化剂温度的系统和方法

    公开(公告)号:US20110016850A1

    公开(公告)日:2011-01-27

    申请号:US12507925

    申请日:2009-07-23

    IPC分类号: F02D43/00 F02B17/00

    摘要: A method and system for controlling an engine includes a homogenous charge compression ignition (HCCI) mode control module that operates an engine in HCCI mode and a condition monitor module that monitors operating conditions of the engine. The control module also includes a condition predictor module that generates a first predicted condition of a catalyst in response to the operating conditions of the engine. A comparison module compares the first predicted condition to a first threshold. A spark injection mode control module operates the engine in a spark injection mode in response to comparing.

    摘要翻译: 用于控制发动机的方法和系统包括在HCCI模式下操作发动机的均质充气压缩点火(HCCI)模式控制模块和监视发动机的运行状况的状态监测模块。 控制模块还包括条件预测器模块,其响应于发动机的操作条件产生催化剂的第一预测条件。 比较模块将第一预测条件与第一阈值进行比较。 火花喷射模式控制模块响应于比较而以火花喷射模式操作发动机。

    SYSTEMS AND METHODS FOR HEATING INTAKE AIR DURING COLD HCCI OPERATION
    10.
    发明申请
    SYSTEMS AND METHODS FOR HEATING INTAKE AIR DURING COLD HCCI OPERATION 有权
    系统和方法,用于加热冷气运行时摄入空气

    公开(公告)号:US20110132317A1

    公开(公告)日:2011-06-09

    申请号:US12629966

    申请日:2009-12-03

    IPC分类号: F02B17/00 F02M7/00 F02G5/00

    摘要: A system for controlling intake airflow of an engine includes a mode determination module, a throttle valve control module, and a valve actuation module. The mode determination module generates a mode signal based on an engine speed signal and an engine load signal. The mode signal indicates one of a spark ignition mode and a homogeneous charge compression ignition mode. The throttle valve control module generates a valve control signal based on the mode signal, a temperature signal, and a plurality of valve position signals that indicate positions of first and second throttle valves. The throttle valve control module controls the positions of the first and second throttle valves to regulate flow rates of intake air into an intake manifold of the engine via a heat exchanger based on the valve control signal. The valve actuation module actuates the first and second throttle valves based on the valve control signal.

    摘要翻译: 用于控制发动机的进气气流的系统包括模式确定模块,节气门控制模块和阀致动模块。 模式确定模块基于发动机速度信号和发动机负载信号产生模式信号。 模式信号表示火花点火模式和均质充量压缩点火模式之一。 节流阀控制模块基于模式信号,温度信号和指示第一和第二节流阀的位置的多个阀位置信号产生阀控制信号。 节流阀控制模块基于阀控制信号,控制第一和第二节流阀的位置,以通过热交换器调节进入发动机的进气歧管的进气流量。 阀致动模块基于阀控制信号来致动第一和第二节流阀。