知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.01 秒)

    Method for monitoring an SCR system
    5.
    发明授权
    Method for monitoring an SCR system 有权
    监控SCR系统的方法

    公开(公告)号：US09222849B2

    公开(公告)日：2015-12-29

    申请号：US13805871

    申请日：2011-06-22

    申请人： Frederic Peucat ,  Jean-Claude Habumuremyi ,  Joel Op de Beeck

    发明人： Frederic Peucat ,  Jean-Claude Habumuremyi ,  Joel Op de Beeck

    IPC分类号： G01M15/09 ,  G01M3/02 ,  F01N3/20 ,  F01N11/00 ,  G01M15/10

    CPC分类号： G01M3/025 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/14 ,  F01N2610/1433 ,  G01M15/09 ,  G01M15/102 ,  Y02T10/24 ,  Y02T10/47

    摘要： A method for detecting whether an injector with a valve controlled by a PWM signal of an SCR system is clogged, the SCR system including a rotary positive-displacement pump driven by a motor and pressure of which is controlled by a controller that continuously measures rotational speed of the motor and pressure at an outlet of the pump. During operation of the SCR system at a given pressure: the associated average rotational speed is measured; the speed is held at the measured value; a curve of a change in pressure is compared to reference curves stored in a memory and a condition of the injector, for example whether the injector is clogged or not, is deduced therefrom.

    摘要翻译： 一种用于检测具有由SCR系统的PWM信号控制的阀的喷射器是否被堵塞的SCR系统，其包括由电动机驱动的旋转正排量泵，其压力由连续测量转速的控制器控制 在泵的出口处的电动机和压力。 在给定压力下操作SCR系统期间，测量相关联的平均转速; 速度保持在测量值; 将压力变化的曲线与存储在存储器中的参考曲线和喷射器的条件（例如，喷射器是否堵塞）进行比较。

    METHOD FOR MONITORING AN SCR SYSTEM
    6.
    发明申请
    METHOD FOR MONITORING AN SCR SYSTEM 有权
    监控SCR系统的方法

    公开(公告)号：US20130180323A1

    公开(公告)日：2013-07-18

    申请号：US13805871

    申请日：2011-06-22

    申请人： Frederic Peucat ,  Jean-Claude Habumuremyi ,  Joel OP DE Beeck

    发明人： Frederic Peucat ,  Jean-Claude Habumuremyi ,  Joel OP DE Beeck

    IPC分类号： G01M15/10

    CPC分类号： G01M3/025 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/14 ,  F01N2610/1433 ,  G01M15/09 ,  G01M15/102 ,  Y02T10/24 ,  Y02T10/47

    摘要： A method for detecting whether an injector with a valve controlled by a PWM signal of an SCR system is clogged, the SCR system including a rotary positive-displacement pump driven by a motor and pressure of which is controlled by a controller that continuously measures rotational speed of the motor and pressure at an outlet of the pump. During operation of the SCR system at a given pressure: the associated average rotational speed is measured; the speed is held at the measured value; a curve of a change in pressure is compared to reference curves stored in a memory and a condition of the injector, for example whether the injector is clogged or not, is deduced therefrom.

    摘要翻译： 一种用于检测具有由SCR系统的PWM信号控制的阀的喷射器是否被堵塞的SCR系统，其包括由电动机驱动的旋转正排量泵，其压力由连续测量转速的控制器控制 在泵的出口处的电动机和压力。 在给定压力下操作SCR系统期间，测量相关联的平均转速; 速度保持在测量值; 将压力变化的曲线与存储在存储器中的参考曲线和喷射器的条件（例如，喷射器是否堵塞）进行比较。

    Method for Heating a SCR System
    7.
    发明申请
    Method for Heating a SCR System 审中-公开
    SCR系统加热方法

    公开(公告)号：US20110027740A1

    公开(公告)日：2011-02-03

    申请号：US12921617

    申请日：2009-03-11

    申请人： Frederic Peucat ,  Stephane Leonard ,  Jae Sik Choi ,  Nicolas Duret

    发明人： Frederic Peucat ,  Stephane Leonard ,  Jae Sik Choi ,  Nicolas Duret

    IPC分类号： F01N3/10

    CPC分类号： F01N9/00 ,  F01N3/2066 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1486 ,  F01N2900/0422 ,  F01N2900/1811 ,  Y02T10/24 ,  Y02T10/47

    摘要： Process for heating a urea component of a SCR system comprising besides said component, a temperature sensor, a heating device in the component, according to which: 1. the temperature (Tcpt) of the liquid in the component is determined and compared to a 1st setpoint (T0); 2. if the temperature (Tcpt) is greater than the 1st setpoint (T0), step 1 is repeated; 3. if the temperature (Tcpt) is less than or equal to the 1st setpoint (T0), the heating device is actuated, 4. the time during which the heating device is actuated is measured and the heating device is stopped if this time is greater than a time t1; 5. the temperature (Tcpt) is determined after a time t2 and compared to a 2nd setpoint (T1 with T1>T0); if the temperature (Tcpt) is less than or equal to the 2nd setpoint (T1) the heating device is actuated and step 4 is repeated; 6. if the temperature (Tcpt) is greater than the 2nd septoint (T1), the heating device is stopped and step 1 is repeated.

    摘要翻译： 用于加热SCR系统的尿素组分的方法，包括除了所述组分，温度传感器，组分中的加热装置之外，其中：1.确定组分中液体的温度（Tcpt），并将其与第一 设定值（T0）; 2.如果温度Tcpt大于第一设定值（T0），则重复步骤1。 3.如果温度（Tcpt）小于或等于第一设定值（T0），则加热装置启动4.测量加热装置启动的时间，如果此时间为 大于时间t1; 在时间t2之后确定温度（Tcpt），并与第二设定值（T1> T1）进行比较; 如果温度（Tcpt）小于或等于第二设定点（T1），则加热装置被致动并且重复步骤4; 6.如果温度Tc Tc大于第二次（T1），加热装置停止，重复步骤1。

    Method and system for injecting a liquid
    8.
    发明授权
    Method and system for injecting a liquid 有权
    注射液体的方法和系统

    公开(公告)号：US08474244B2

    公开(公告)日：2013-07-02

    申请号：US12677612

    申请日：2008-09-12

    申请人： Nicolas Duret ,  Jean-Claude Habumuremyi ,  Frederic Peucat ,  Claude Mesjasz

    发明人： Nicolas Duret ,  Jean-Claude Habumuremyi ,  Frederic Peucat ,  Claude Mesjasz

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  F01N2610/02 ,  F01N2900/1808 ,  Y02T10/24

    摘要： Method for controlling an injector intended for injecting a pollution-control liquid additive into the exhaust gases of an internal combustion engine at a flow rate governed by a given frequency and opening time of the injector, the injector having a calibration curve that establishes, at given frequency, pressure, temperature and nature of the liquid, the amount of liquid injected during an opening of the injector as a function of the duration of this opening, this curve comprising at least one linear zone (calibration line) and a non-linear zone, said method being characterized in that in the linear zone the parameters of the calibration line are used and in the non-linear zone use is made of a set opening time and a variable frequency according to at least one calibration point established for this purpose. SCR system to which this method can be applied.

    摘要翻译： 用于控制喷射器的方法，所述喷射器用于以由给定的喷射器的给定频率和打开时间控制的流量将污染控制液体添加剂注入到内燃机的废气中，所述喷射器具有在给定的时间内建立的校准曲线 频率，压力，温度和性质，喷射器打开期间喷射的液体的量作为该打开持续时间的函数，该曲线包括至少一个线性区域（校准线）和非线性区域 所述方法的特征在于，在线性区域中，使用校准线的参数，并且在非线性区域中，根据为此目的建立的至少一个校准点，使用设定的开启时间和可变频率。 可以应用该方法的SCR系统。

    Method and system for injecting a liquid
    10.
    发明申请
    Method and system for injecting a liquid 有权
    注射液体的方法和系统

    公开(公告)号：US20100205937A1

    公开(公告)日：2010-08-19

    申请号：US12677612

    申请日：2008-09-12

    申请人： Nicolas Duret ,  Jean-Claude Habumuremyi ,  Frederic Peucat ,  Claude Mesjasz

    发明人： Nicolas Duret ,  Jean-Claude Habumuremyi ,  Frederic Peucat ,  Claude Mesjasz

    IPC分类号： F01N3/20 ,  F01N9/00

    CPC分类号： F01N3/208 ,  F01N2610/02 ,  F01N2900/1808 ,  Y02T10/24

    摘要： Method for controlling an injector intended for injecting a pollution-control liquid additive into the exhaust gases of an internal combustion engine at a flow rate governed by a given frequency and opening time of the injector, the injector having a calibration curve that establishes, at given frequency, pressure, temperature and nature of the liquid, the amount of liquid injected during an opening of the injector as a function of the duration of this opening, this curve comprising at least one linear zone (calibration line) and a non-linear zone, said method being characterized in that in the linear zone the parameters of the calibration line are used and in the non-linear zone use is made of a set opening time and a variable frequency according to at least one calibration point established for this purpose. SCR system to which this method can be applied.

    摘要翻译： 用于控制喷射器的方法，所述喷射器用于以由给定的喷射器的给定频率和打开时间控制的流量将污染控制液体添加剂注入到内燃机的废气中，所述喷射器具有在给定的时间内建立的校准曲线 频率，压力，温度和性质，喷射器打开期间喷射的液体的量作为该打开持续时间的函数，该曲线包括至少一个线性区域（校准线）和非线性区域 所述方法的特征在于，在线性区域中，使用校准线的参数，并且在非线性区域中，根据为此目的建立的至少一个校准点，使用设定的开启时间和可变频率。 可以应用该方法的SCR系统。