System and method to estimate intake charge temperature for internal combustion engines
    24.
    发明授权
    System and method to estimate intake charge temperature for internal combustion engines 有权
    用于估计内燃机的进气压力的系统和方法

    公开(公告)号:US08731803B2

    公开(公告)日:2014-05-20

    申请号:US13186602

    申请日:2011-07-20

    IPC分类号: F02B47/10 F02B47/08

    摘要: An engine includes an intake manifold mixing an intake air flow and an exhaust gas recirculation flow to provide an intake charge flow. A method to estimate an intake charge temperature of the intake charge includes monitoring system conditions for the engine, determining an effect of the mixing upon a specific heat coefficient of the intake charge flow based upon the monitored system conditions, estimating the intake charge temperature based upon the effect of the mixing upon the specific heat coefficient of the intake charge flow and the monitored system conditions, and controlling the engine based upon the estimated intake charge temperature.

    摘要翻译: 发动机包括混合进气流和排气再循环流的进气歧管以提供进气充注流。 估计进气量的进气充气温度的方法包括监测发动机的系统条件,基于所监测的系统条件确定混合的影响与进气充量流量的比热系数,基于 混合对进气充气流量的比热系数和监测的系统条件的影响,以及基于估计的进气充量温度来控制发动机。

    METHOD FOR DETECTING THE FAILURE OF A CHARGE AIR COOLER
    25.
    发明申请
    METHOD FOR DETECTING THE FAILURE OF A CHARGE AIR COOLER 有权
    用于检测充电空气冷却器故障的方法

    公开(公告)号:US20140081597A1

    公开(公告)日:2014-03-20

    申请号:US14005950

    申请日:2012-03-16

    IPC分类号: G01M15/04

    摘要: A method for detecting a failure of a charge air cooler placed in an air supply circuit of an engine, the circuit including an air filter and a compressor. The method is performed continuously and repeatedly. The method includes: determining temperature Tair of the air between the filter and the compressor, the temperature of the air Tapc between the compressor and the cooler, and the temperature of the air Tsras between the cooler and the engine; calculating the Tapc-Tsras/Tapc-Tair ratio, which is a parameter indicative of effectiveness of the cooler; comparing the parameter against a predetermined threshold effectiveness value; and making a diagnosis as to whether the cooler is operating correctly or incorrectly, on the basis of the comparison.

    摘要翻译: 一种用于检测放置在发动机的空气供给回路中的增压空气冷却器的故障的方法,所述电路包括空气过滤器和压缩机。 连续重复执行该方法。 该方法包括:确定过滤器和压缩机之间的空气的温度Tair,压缩机和冷却器之间的空气Tapc的温度以及冷却器和发动机之间的空气温度Tsras; 计算Tapc-Tsras / Tapc-Tair比率,这是表示冷却器有效性的参数; 将所述参数与预定阈值有效值进行比较; 并且基于比较来诊断冷却器是否正常或不正确地操作。

    CHARGE FLOW TEMPERATURE ESTIMATION
    26.
    发明申请
    CHARGE FLOW TEMPERATURE ESTIMATION 有权
    充电流量温度估算

    公开(公告)号:US20130343421A1

    公开(公告)日:2013-12-26

    申请号:US13530548

    申请日:2012-06-22

    IPC分类号: G01K13/02 G01K15/00

    摘要: An engine air system for charge flow temperature estimation includes a charge air cooler outlet temperature sensor configured to provide a first temperature signal, an exhaust gas recirculation outlet temperature sensor configured to provide a second temperature signal, and a control module configured to receive the first temperature signal and the second temperature signal. The control module includes a charge flow temperature estimation module configured to determine an the estimated charge flow temperature at an intake manifold temperature sensing position based on a combination of the first temperature signal multiplied by an estimated fresh air fraction and the second temperature signal multiplied by an exhaust gas recirculation fraction.

    摘要翻译: 用于充电流温度估计的发动机空气系统包括配置成提供第一温度信号的增压空气冷却器出口温度传感器,被配置为提供第二温度信号的排气再循环出口温度传感器,以及被配置为接收第一温度 信号和第二温度信号。 控制模块包括充电流温度估计模块,其被配置为基于乘以估计新鲜空气部分的第一温度信号与乘以估计新鲜空气部分的第二温度信号的组合来确定进气歧管温度感测位置处的估计的充气流量温度 废气再循环部分。

    Exhaust purification device for internal combustion engine
    27.
    发明授权
    Exhaust purification device for internal combustion engine 有权
    内燃机排气净化装置

    公开(公告)号:US08539756B2

    公开(公告)日:2013-09-24

    申请号:US13257175

    申请日:2010-03-11

    IPC分类号: F01N3/00 F01N3/02

    摘要: Provided is an exhaust purification device for an internal combustion engine, wherein the operation of an internal combustion engine can be prevented from being maintained when a particulate filter is melted. An exhaust purification device is comprised of a particulate filter; a downstream-side temperature sensor which detects a downstream-side exhaust temperature; a filter temperature sensor which detects a filter temperature; an exhaust differential pressure detection device which calculates an exhaust differential pressure between an upstream-side exhaust pressure and a downstream-side exhaust pressure at predetermined time intervals; a notification device; and an ECU which controls the internal combustion engine based on a differential pressure variation first and second exhaust differential pressures or the downstream-side exhaust temperature.

    摘要翻译: 提供一种用于内燃机的排气净化装置,其中当微粒过滤器熔化时可以防止内燃机的运转。 排气净化装置由微粒过滤器构成; 检测下游侧排气温度的下游侧温度传感器; 检测过滤器温度的过滤器温度传感器; 排气压差检测装置,以预定的时间间隔计算上游侧排气压力和下游侧排气压力之间的排气压差; 通知装置; 以及基于差压变化第一和第二排气压差或下游侧排气温度来控制内燃机的ECU。

    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    28.
    发明申请
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制装置

    公开(公告)号:US20130186374A1

    公开(公告)日:2013-07-25

    申请号:US13825180

    申请日:2010-09-23

    IPC分类号: F02M25/08

    摘要: Disclosed is a control device applied to an internal combustion engine provided with a fuel vapor treatment system for treating collected fuel vapor by purging the collected fuel vapor into intake air downstream from an air flowmeter (6) and an exhaust gas recirculation system for recirculating part of exhaust gas in the intake air using intake negative pressure. An electronic control unit (22) performs an advance correction corresponding to the exhaust gas recirculation quantity regarding the MBT ignition timing and the knock limit ignition timing, and corrects the volumetric efficiency of the internal combustion engine, which is used for the calculation of the advance correction quantity used for the advance correction, according to the purge air quantity. Consequently, regardless of the decrease of the exhaust gas recirculation quantity caused by the implementation of a large quantity of purge, the appropriate advance corrections of the MBT ignition timing and the knock limit ignition timing become possible.

    摘要翻译: 公开了一种应用于具有燃料蒸汽处理系统的内燃机的控制装置,所述燃料蒸气处理系统用于通过将收集的燃料蒸气吹扫到从空气流量计(6)下游的进入空气和用于再循环部分的排气再循环系统 进气中的排气使用进气负压。 电子控制单元(22)对与MBT点火正时和爆震极限点火正时相关的废气再循环量执行预先校正,并且校正用于计算前进量的内燃机的容积效率 根据吹扫空气量用于预先校正的校正量。 因此,不管由实施大量清洗而导致的废气再循环量的减少,MBT点火正时和爆震极限点火正时的适当的前进修正成为可能。

    SYSTEM AND METHOD TO ESTIMATE INTAKE CHARGE TEMPERATURE FOR INTERNAL COMBUSTION ENGINES
    29.
    发明申请
    SYSTEM AND METHOD TO ESTIMATE INTAKE CHARGE TEMPERATURE FOR INTERNAL COMBUSTION ENGINES 有权
    估计内燃机充电温度的系统和方法

    公开(公告)号:US20130024085A1

    公开(公告)日:2013-01-24

    申请号:US13186602

    申请日:2011-07-20

    IPC分类号: F02D28/00

    摘要: An engine includes an intake manifold mixing an intake air flow and an exhaust gas recirculation flow to provide an intake charge flow. A method to estimate an intake charge temperature of the intake charge includes monitoring system conditions for the engine, determining an effect of the mixing upon a specific heat coefficient of the intake charge flow based upon the monitored system conditions, estimating the intake charge temperature based upon the effect of the mixing upon the specific heat coefficient of the intake charge flow and the monitored system conditions, and controlling the engine based upon the estimated intake charge temperature.

    摘要翻译: 发动机包括混合进气流和排气再循环流的进气歧管以提供进气充注流。 估计进气量的进气充气温度的方法包括监测发动机的系统条件,基于所监测的系统条件确定混合的影响与进气充量流量的比热系数,基于 混合对进气充气流量的比热系数和监测的系统条件的影响,以及基于估计的进气充量温度来控制发动机。

    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEM AND METHOD
    30.
    发明申请
    INTAKE AIR TEMPERATURE SENSOR DIAGNOSTIC SYSTEM AND METHOD 有权
    摄入空气温度传感器诊断系统及方法

    公开(公告)号:US20090235725A1

    公开(公告)日:2009-09-24

    申请号:US12051062

    申请日:2008-03-19

    IPC分类号: G01F1/68 G01K15/00

    摘要: An intake air temperature (IAT) sensor diagnostic system may include an IAT determination module, a mass air flow (MAF) module, and a diagnostic module. The IAT determination module determines a measured IAT based on an IAT sensor. The MAF module determines a reference temperature based on a MAF sensor. The diagnostic module determines faults in the IAT sensor based on a comparison between the reference temperature and the measured IAT.

    摘要翻译: 进气温度(IAT)传感器诊断系统可以包括IAT确定模块,大气流(MAF)模块和诊断模块。 IAT确定模块基于IAT传感器确定测量的IAT。 MAF模块基于MAF传感器确定参考温度。 诊断模块基于参考温度和测量的IAT之间的比较来确定IAT传感器中的故障。