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    • 2. 发明申请
    • Method for diagnosing a low pressure exhaust gas recirculation system of an internal combustion engine and device for carrying out the method
    • 用于诊断内燃机的低压排气再循环系统的方法和用于执行该方法的装置
    • US20140196527A1
    • 2014-07-17
    • US14156955
    • 2014-01-16
    • Thomas BOSSMEYERStefan MotzJens Pawlak
    • Thomas BOSSMEYERStefan MotzJens Pawlak
    • F02M25/07
    • F02M25/0702F02D21/08F02D41/0072F02D41/18F02D41/22F02M26/05F02M26/06F02M26/15F02M26/24F02M26/25F02M26/49Y02T10/47
    • A method and device for diagnosing a low pressure exhaust gas recirculation system (LPEGRS) of an internal combustion engine having an intake area for supplying fresh air which includes in succession in the flow direction a first section having a low pressure in which an air mass flow sensor is situated, a compressor and a second section having a high pressure, the engine exhaust area including a second section having a low exhaust gas pressure, and the LPEGRS which has an adjustable LPEGR valve recirculating at least a portion of the exhaust gas in the second section of the exhaust area to the first section of the intake area. The fresh air mass flow taken in is measured by the air mass flow sensor, the total mass flow flowing through the compressor being ascertained, the LPEGR mass flow being ascertained from the difference between the total mass flow and the fresh air mass flow taken in, an estimated value being calculated for the LPEGR mass flow, the difference between the ascertained LPEGR mass flow and the estimated value being formed, and an error signal being output for a deviation. The procedure is for detecting exhaust gas-relevant errors.
    • 一种用于诊断具有用于供应新鲜空气的进气区域的内燃机的低压排气再循环系统(LPEGRS)的方法和装置,其包括在流动方向上连续地具有低压的第一部分,其中空气质量流 传感器,压缩机和具有高压力的第二部分,发动机排气区域包括具有低废气压力的第二部分,并且LPEGRS具有可调节的LPEGR阀,该可调节LPEGR阀将废气的至少一部分再循环 排气区域的第二部分到进气区域的第一部分。 通过空气质量流量传感器测量的新鲜空气质量流量,确定流经压缩机的总质量流量,LPEGR质量流量是从总质量流量与吸入的新鲜空气质量流量之间的差异确定的, 对于LPEGR质量流量计算的估计值,确定的LPEGR质量流量与正在形成的估计值之间的差异以及针对偏差输出的误差信号。 该程序用于检测废气相关误差。
    • 8. 发明申请
    • METHOD FOR THE CLOSED-LOOP CONTROL OF THE REGENERATION OF A PARTICLE FILTER
    • 用于粒子滤波器再生的封闭环控制方法
    • US20080209892A1
    • 2008-09-04
    • US12040386
    • 2008-02-29
    • Christian POSTStefan Motz
    • Christian POSTStefan Motz
    • F01N3/00
    • F02D41/029F01N11/00F02D41/024F02P19/026Y02T10/26Y02T10/47
    • The invention concerns a method for the closed-loop control of the regeneration of a particle filter in the exhaust gas system of an internal combustion engine, wherein the burn-off of particles in the particle filter during a regeneration process is controlled by a closed-loop control of the oxygen content of the exhaust gas and/or wherein the temperature of the exhaust gas or of at least one component of the exhaust gas aftertreatment system is controlled in a closed loop. Provision is thereby made for the corrective controller actions for the closed-loop control of the oxygen content and/or the temperature of components of the exhaust gas aftertreatment system to take place only during stable combustion conditions of the internal combustion engine.The method prevents through corrective controller actions during insufficiently stable combustion conditions of the internal combustion engine conditions in the exhaust gas aftertreatment system of the internal combustion engine from being produced, which lead to an inadmissibly high temperature of individual components of the exhaust gas aftertreatment system.
    • 本发明涉及一种用于闭环控制内燃机排气系统中的颗粒过滤器的再生的方法,其中在再生过程中颗粒过滤器中的颗粒的燃烧被封闭 - 对排气的氧含量进行回路控制和/或其中废气温度或废气后处理系统的至少一个组分的温度控制在闭环中。 因此,为了仅在内燃机的稳定燃烧条件下才进行氧气含量的闭环控制和/或排气后处理系统的部件的温度的校正控制器动作。 该方法在内燃机的排气后处理系统中的内燃机状态的不充分稳定的燃烧条件下,通过校正控制器动作而产生,从而导致排气后处理系统的各个部件的温度不允许高。
    • 9. 发明授权
    • Method for diagnosing a low pressure exhaust gas recirculation system of an internal combustion engine and device for carrying out the method
    • 用于诊断内燃机的低压排气再循环系统的方法和用于执行该方法的装置
    • US09145851B2
    • 2015-09-29
    • US14156955
    • 2014-01-16
    • Thomas BossmeyerStefan MotzJens Pawlak
    • Thomas BossmeyerStefan MotzJens Pawlak
    • F02M25/07F02D21/08F02D41/00F02D41/18F02D41/22
    • F02M25/0702F02D21/08F02D41/0072F02D41/18F02D41/22F02M26/05F02M26/06F02M26/15F02M26/24F02M26/25F02M26/49Y02T10/47
    • A method and device for diagnosing a low pressure exhaust gas recirculation system (LPEGRS) of an internal combustion engine having an intake area for supplying fresh air which includes in succession in the flow direction a first section having a low pressure in which an air mass flow sensor is situated, a compressor and a second section having a high pressure, the engine exhaust area including a second section having a low exhaust gas pressure, and the LPEGRS which has an adjustable LPEGR valve recirculating at least a portion of the exhaust gas in the second section of the exhaust area to the first section of the intake area. The fresh air mass flow taken in is measured by the air mass flow sensor, the total mass flow flowing through the compressor being ascertained, the LPEGR mass flow being ascertained from the difference between the total mass flow and the fresh air mass flow taken in, an estimated value being calculated for the LPEGR mass flow, the difference between the ascertained LPEGR mass flow and the estimated value being formed, and an error signal being output for a deviation. The procedure is for detecting exhaust gas-relevant errors.
    • 一种用于诊断具有用于供应新鲜空气的进气区域的内燃机的低压排气再循环系统(LPEGRS)的方法和装置,其包括在流动方向上连续地具有低压的第一部分,其中空气质量流 传感器,压缩机和具有高压力的第二部分,发动机排气区域包括具有低废气压力的第二部分,并且LPEGRS具有可调节的LPEGR阀,该可调节LPEGR阀将废气的至少一部分再循环 排气区域的第二部分到进气区域的第一部分。 通过空气质量流量传感器测量的新鲜空气质量流量,确定流经压缩机的总质量流量,LPEGR质量流量是从总质量流量与吸入的新鲜空气质量流量之间的差异确定的, 对于LPEGR质量流量计算的估计值,确定的LPEGR质量流量与正在形成的估计值之间的差异以及针对偏差输出的误差信号。 该程序用于检测废气相关误差。
    • 10. 发明申请
    • METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING A FEED LINE FOR FEEDING IN AN AIR MIXTURE AND HAVING AN EXHAUST LINE
    • 具有用于在空气混合物中进料并具有排气管线的进料管线的内燃机的操作方法
    • US20110257952A1
    • 2011-10-20
    • US13089626
    • 2011-04-19
    • Stefan MotzThomas Bossmeyer
    • Stefan MotzThomas Bossmeyer
    • G06G7/48G06F19/00F02D41/26F02M25/07F02B33/44
    • F02D41/0055F02B33/44F02M26/05F02M26/06F02M26/15F02M26/25Y02T10/47
    • A method for operating an internal combustion engine (10), the internal combustion engine (10) having a feed line (14) for feeding an air mixture into the internal combustion engine (10), the feed line (14) having a first section (27) at a comparatively low pressure, a compressor (22) for compressing the air mixture fed in, and a second section (29) at a comparatively high pressure arranged in series in the feed direction, the internal combustion engine (10) having an exhaust line (12) for discharging exhaust gas from the internal combustion engine (10), the exhaust line (12) having a section (43) in which the exhaust gas is at a comparatively low pressure, and the internal combustion engine (10) having an exhaust gas recirculation system (50) which recirculates into the first section (27) of the air feed (14) at least part of the exhaust gas which flows through the section (43) of the exhaust line (12) at the comparatively low pressure, the recirculated part of the exhaust gas and fresh air fed in forming the air mixture flowing through the feed line (14). A mass flow (71) of the recirculated part of the exhaust gas is determined by means of the following steps: (a) determination of a mass flow (72) flowing through the compressor (22); (b) determination of a mass flow (70) of the fresh air fed in; and (c) subtraction of the mass flow (70) determined in step (b) from the mass flow (72) determined in step (a).
    • 一种用于操作内燃机(10)的方法,所述内燃机(10)具有用于将空气混合物供给到所述内燃机(10)中的供给管线(14),所述进料管线(14)具有第一部分 (27),用于压缩供给的空气混合物的压缩机(22)和沿供给方向串联布置的相对高压的第二部分(29),内燃机(10)具有 用于排出来自内燃机(10)的废气的排气管线(12),排气管线(12)具有排气处于较低压力的部分(43),内燃机(10) )具有排气再循环系统(50),废气再循环系统(50)将空气再循环系统(50)再循环到空气供给(14)的第一部分(27)中,排气的至少一部分流过排气管线(12)的部分(43) 比较低的压力,废气的再循环部分 在形成流过供给管线(14)的空气混合物的空气供给。 通过以下步骤确定废气的再循环部分的质量流(71):(a)确定流过压缩机(22)的质量流(72); (b)确定进入的新鲜空气的质量流量(70); 和(c)从步骤(a)中确定的质量流(72)减去在步骤(b)中确定的质量流量(70)。