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    • 4. 发明授权
    • Methods for controlling a fuel metering in the multiple injection operating mode
    • 用于在多次喷射操作模式下控制燃料计量的方法
    • US06920862B2
    • 2005-07-26
    • US10473088
    • 2002-02-13
    • Ekkehard PottEric BreeKai PhilippMichael Zillmer
    • Ekkehard PottEric BreeKai PhilippMichael Zillmer
    • F02M45/02F02B75/12F02D41/02F02D41/14F02D41/32F02D41/34F02D41/38F02D41/40F02D43/00F02D45/00F02M45/04F02M51/00F02B3/00
    • F02D41/3836F02B2075/125F02D41/402F02D2041/2048F02D2041/389F02D2200/0602Y02T10/123Y02T10/44
    • The invention relates to two methods for controlling a fuel metering of a direct-injection internal combustion engine (10) in a multiple injection operating mode according to which at least two fuel injections into a cylinder (12) are carried out during a compression cycle of the cylinder (12) of the internal combustion engine (10) by means of at least one injection valve (22). The invention provides that a pressure (rail pressure, PR), under which the fuel is stored in front of the injection valve (22), is present in such a manner and/or injected fuel portions of the individual injections of a combustion cycle and/or a total fuel quantity, which is injected during a multiple injection, are varied in such a manner as to prevent a forthcoming valve opening time (Δt) of the injection valve (22) from falling below a preset valve opening time (ΔtK) during at least one injection of a combustion cycle. The inventive measures ensure, with simple means, a precise fuel metering in the multiple injection operating mode and thus enable an application of the multiple injection operating mode over wide operating ranges, particularly also in the low load operating mode and idle operating mode.
    • 本发明涉及用于以多次喷射操作模式控制直喷式内燃机(10)的燃料计量的两种方法,根据该方法,在压缩循环期间执行至少两个喷射到气缸(12)中的燃料喷射 内燃机(10)的气缸(12)通过至少一个喷射阀(22)。 本发明提供了一种在燃料储存在喷射阀(22)的前方的压力(轨道压力),以这样的方式和/或喷射的燃料部分 在多次注射期间喷射的燃烧循环和/或总燃料量的单独喷射以防止喷射阀(22)的即将到来的阀打开时间(Deltat)下降的方式变化 在燃烧循环的至少一次喷射期间的预设阀打开时间(Deltat K)。 本发明的措施通过简单的手段确保在多次喷射操作模式下的精确燃料计量,并且因此能够在宽的工作范围内,特别是在低负载运行模式和空转操作模式下,可应用多次喷射操作模式。
    • 8. 发明申请
    • Method for heating up a catalytic converter
    • 加热催化转化器的方法
    • US20060162321A1
    • 2006-07-27
    • US10546674
    • 2004-02-23
    • Michael ZillmerMatthias HolzEkkehard PottKai Philipp
    • Michael ZillmerMatthias HolzEkkehard PottKai Philipp
    • F01N3/00F01N3/10
    • F02D41/008B01D53/9495F01N3/0842F01N3/0885F01N13/009F01N13/011F01N2570/04F02D41/0082F02D41/0245F02D41/025F02D41/402Y02T10/26
    • The invention relates to a method for heating up at least one catalytic converter (34) that is disposed in an exhaust gas duct (28) of an internal combustion engine, especially an NOx storage catalytic converter (34) which is mounted upstream of a precatalytic converter (30, 32). According to the invention, at least one chemical heating measure causing a temperature increase in the catalytic converter (34) that is to be heated substantially by means of chemical energy which is fed into the exhaust gas duct (28) in addition to the energy supplied at an original engine operation point, and at least one thermal heating measure causing an increase in the temperature of the catalytic converter especially by means of thermal energy that is supplied in addition to the energy supplied at an original engine operation point, are combined in such a way that a main portion of chemical energy is supplied before a main portion of thermal energy.
    • 本发明涉及一种用于加热至少一个催化转化器(34)的方法,所述催化转化器(34)设置在内燃机的排气管道(28)中,特别是NO x X存储催化转化器(34) ),其安装在预分解转换器(30,32)的上游。 根据本发明,至少一种化学加热措施导致催化转化器(34)的温度升高,该催化转化器基本上通过供应到排气管道(28)中的化学能被加热,除了所提供的能量 在原始发动机操作点处,以及至少一个导致催化转化器的温度升高的热加热措施,特别是通过除了在原始发动机操作点供应的能量之外提供的热能,这些热加热措施被组合在一起 化学能的主要部分在热能的主要部分之前供应的方式。
    • 10. 发明授权
    • Method for increasing an exhaust gas temperature of a spark-ignition, direct injection internal combustion engine
    • 火花点火式直喷式内燃机的废气温度升高方法
    • US07086221B2
    • 2006-08-08
    • US10471640
    • 2002-02-22
    • Ekkehard PottEric BreeKai PhilippMichael Zillmer
    • Ekkehard PottEric BreeKai PhilippMichael Zillmer
    • F01N3/00
    • F02D41/3023F02B2075/125F02D41/0245F02D41/0255F02D41/401F02D41/402Y02T10/123Y02T10/26Y02T10/44
    • The invention relates to a method for at least temporarily increasing an exhaust gas temperature of a spark-ignition, direction injection internal combustion engine (10) involving at least one measure, which is executed by the engine, whereby this at least one measure consists of a spark retarding and of a multiple injection (ME). During the multiple injection (ME), at least two fuel injections into the cylinder (12) are carried out within an induction cycle and compression cycle of a cylinder (12) of the internal combustion engine (10), and the latest of these injections ensues during a compression cycle of the cylinder (12). The invention also relates to the utilization of the method. According to the invention, a control end of an injection angle (αEE) of the latest injection is at least temporarily set to between 80 and 10° before an upper ignition dead center (ZOT) when operating with multiple injection and/or an ignition angle (αZ) is at least temporarily set to between 10 and 45° after the upper ignition dead center (ZOT) also when operating with multiple injection. A combination of both measures enables a dramatic acceleration of the warming up of a catalytic converter (16) that is connected downstream from the internal combustion engine (10).
    • 本发明涉及一种用于至少暂时提高火花点火的方向注射内燃机(10)的排气温度的方法,该内燃机涉及由发动机执行的至少一个措施,由此该至少一个措施由 火花塞和多重注射(ME)。 在多次喷射(ME)期间,在内燃机(10)的气缸(12)的感应循环和压缩循环内进行至气缸(12)中的至少两次燃料喷射,以及最近的这些喷射 在气缸(12)的压缩循环期间。 本发明还涉及该方法的应用。 根据本发明,当最后一次喷射的喷射角度(α×EE))的控制端至少临时设定在上点火死点(ZOT)之前的80°和10°之间,当与 当多次注射操作时,多个注射和/或点火角(αZZ)至少临时设定在上点火死死点(ZOT)之后的10°和45°之间。 两种措施的组合使得能够显着加速连接在内燃机(10)下游的催化转化器(16)的预热。