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    • 3. 发明申请
    • METHOD FOR FLUSHING AN ACTIVATED CARBON FILTER
    • 用于冲洗活性炭过滤器的方法
    • US20120279480A1
    • 2012-11-08
    • US13503107
    • 2010-10-29
    • Ernst Wild
    • Ernst Wild
    • F02M33/02
    • F02M25/0818
    • In a method for flushing an activated carbon filter of a tank ventilation system of an internal combustion engine, which tank ventilation system includes a fuel tank and an activated carbon filter with which a tank shut-off valve TAV, a fuel tank vent valve TEV, and an activated carbon filter shut-off valve AAV are associated, the tank shut-off valve TAV is closed, the fuel tank vent valve TEV is opened, and the activated carbon filter shut-off valve AAV is closed. The activated carbon filter shut-off valve AAV is controlled to close in a clocked manner.
    • 在一种用于冲洗内燃机的箱式通风系统的活性炭过滤器的方法中,所述罐式通风系统包括燃料箱和活塞式碳过滤器,罐式切断阀TAV,燃料箱排放阀TEV, 并关闭活塞式碳过滤器截止阀AAV,油箱关闭阀TAV关闭,燃油箱排气阀TEV打开,活塞式碳过滤器截止阀AAV关闭。 活性炭过滤器截止阀AAV被控制为以时钟方式关闭。
    • 4. 发明授权
    • Method and device for operating an internal combustion engine
    • 用于操作内燃机的方法和装置
    • US07188605B2
    • 2007-03-13
    • US11084521
    • 2005-03-18
    • Ernst WildSabine Wegener
    • Ernst WildSabine Wegener
    • F02D41/30
    • F02D41/0002F02D41/0007F02D41/34F02D2250/26Y02T10/144Y02T10/42Y02T10/44
    • A method and a device for operating an internal combustion engine are provided, which allow a continuous limiting of the output of the internal combustion engine upon attaining a maximally possible injection duration of an injection valve. The internal combustion engine has at least one actuator for influencing the output of the internal combustion engine and at least one injection valve for supplying fuel to the combustion engine. A maximally possible injection duration for an injection procedure of the at least one injection valve is determined. A variable characterizing the output of internal combustion engine is limited as a function of the maximally possible injection duration by corresponding adjustment of the at least one actuator.
    • 提供了一种用于操作内燃机的方法和装置,其允许在获得喷射阀的最大可能的喷射持续时间时连续限制内燃机的输出。 内燃机具有至少一个致动器,用于影响内燃机的输出和用于向燃烧发动机供应燃料的至少一个喷射阀。 确定至少一个喷射阀的喷射程序的最大可能的喷射持续时间。 通过相应地调节至少一个致动器,表征内燃机的输出的变量被限制为最大可能的喷射持续时间的函数。
    • 8. 发明授权
    • Method for determining the load signal of an internal combustion engine
having external exhaust-gas recirculation
    • 用于确定具有外部排气再循环的内燃机的负载信号的方法
    • US5889203A
    • 1999-03-30
    • US877798
    • 1997-06-18
    • Ernst WildManfred PfitzAxel Stuber
    • Ernst WildManfred PfitzAxel Stuber
    • F02M25/07F02D21/08F02D45/00G01M15/00
    • F02D41/0072Y02T10/47
    • The invention is directed to a method for determining a load signal of an internal combustion engine having an intake pipe with a pressure sensor, external exhaust-gas recirculation (EGR) and an EGR valve. A load signal (tl) is computed in a circuit arrangement which is proportional to the mass inducted per revolution of the engine. The computation is made in dependence upon measured intake-pipe pressure (ps) and the speed (n) of the engine in rpm. On the one hand, the method makes a simple adaptation possible, while, on the other hand, a correct load signal is formed also in steady-state operation and, in this way, reduced exhaust-gas emissions of the engine are made possible. The exhaust-gas mass flow flowing through the EGR valve is determined by converting the exhaust-gas mass flow into an rpm-dependent signal. The rpm-dependent signal is filtered in a filter simulating charging operations in the intake pipe. A corrective signal (scorr) proportional to the exhaust-gas mass inducted by the engine per revolution thereof is determined and this corrective signal (scorr) is subtracted from the load signal (tl) to generate and output the corrected load signal (tlcorr).
    • 本发明涉及一种用于确定具有带有压力传感器,外部排气再循环(EGR)和EGR阀的进气管的内燃机的负载信号的方法。 负载信号(t1)以与发动机每转转动的质量成比例的电路装置来计算。 根据测量的进气管压力(ps)和发动机的转速(n)以rpm计算。 一方面,该方法能够进行简单的适应,另一方面,在稳态运行中也形成正确的负载信号,从而能够减少发动机的废气排放。 流经EGR阀的排气质量流量通过将废气质量流转换成与转速相关的信号来确定。 转速相关信号在模拟进气管中的充气操作的过滤器中进行过滤。 确定与每转一次由发动机引入的排气质量成比例的校正信号(scorr),并从负载信号(t1)中减去该校正信号(scorr),以产生并输出校正的负载信号(tlcorr)。
    • 9. 发明授权
    • Method and arrangement for diagnosing a tank-venting system
    • 诊断通气系统的方法和装置
    • US5666925A
    • 1997-09-16
    • US647757
    • 1996-05-15
    • Helmut DenzErnst WildAndreas BlumenstockGeorg Mallebrein
    • Helmut DenzErnst WildAndreas BlumenstockGeorg Mallebrein
    • G01M3/24B60K15/077F02M25/08F02M37/00G01M3/26F02M37/04
    • F02M25/0809
    • The invention is directed to a method for checking the tightness of a tank-venting system used with an internal combustion engine having an intake pipe. The tank-venting system includes a fuel tank wherein fuel vapor forms, a storage device connected to the fuel tank, the storage device having a vent opening and a device for closing the vent opening, and a tank-venting valve interconnecting the intake pipe and the storage device whereby the fuel vapor is conducted from the tank to the intake pipe via the storage device and the tank-venting valve. The method includes the steps of: (a) during operation of the engine and while the venting opening is closed, carrying out one of the following: (a1) opening the tank-venting valve and drawing a predetermined quantity of gaseous substance through the tank-venting valve, or (a2) opening the tank-venting valve and drawing a gaseous substance through the tank-venting valve so long until a predetermined underpressure is reached in the tank-venting system, so that a pressure fluctuation is produced in the tank-venting system with the pressure fluctuation being characterized by a plurality of characteristic variables; (b) evaluating at least one of the characteristic variables to judge the tightness of the tank-venting system.
    • 本发明涉及一种用于检查与具有进气管的内燃机一起使用的排气系统的紧密度的方法。 排气系统包括燃料蒸气形成的燃料箱,连接到燃料箱的存储装置,具有通气口的存储装置和用于关闭通风口的装置,以及将进气管和 存储装置,其中燃料蒸气经由存储装置和排气阀从罐传导到进气管。 该方法包括以下步骤:(a)在发动机运转期间和通气口关闭的同时,执行以下操作之一:(a1)打开排气阀并通过罐抽出预定量的气态物质 或者(a2)打开排气阀,并将气体物质通过罐排放阀长时间直到达到在通气系统中预定的负压,从而在罐中产生压力波动 压力波动的特征在于多个特征变量; (b)评估至少一个特征变量来判断排气系统的紧密度。
    • 10. 发明授权
    • Method and apparatus for checking the tightness of a tank-venting system
    • 用于检查排气系统密封性的方法和装置
    • US5460141A
    • 1995-10-24
    • US246518
    • 1994-05-20
    • Helmut DenzErnst WildAndreas Blumenstock
    • Helmut DenzErnst WildAndreas Blumenstock
    • F02M25/08F02M33/02
    • F02M25/0809
    • The invention is directed to a method for checking the tightness of a tank-venting system when a pregiven test condition is satisfied. The method includes the steps of: (a) building up a difference pressure in the tank-venting system irrespective of whether the pregiven test condition is satisfied; (b) determining the presence of the test condition and then closing the tank-venting system; (c) determining the value of the decay gradient of the difference pressure when the pregiven test condition is satisfied thereby losing no time in starting the check of the tightness; and, (d) drawing a conclusion as to the tightness of the tank-venting system when the value of the decay gradient is less in magnitude than a threshold decay gradient. In this way, as soon as the test condition is satisfied, a determination of the value of the decay gradient of the difference pressure already built up can be started. An apparatus for carrying out the method is also disclosed.
    • 本发明涉及一种在满足预制测试条件时检查罐排气系统的紧密度的方法。 该方法包括以下步骤:(a)建立罐排气系统中的差压,无论是否满足预先测试条件; (b)确定测试条件的存在,然后关闭油箱排气系统; (c)确定当预先测试条件满足时差压的衰减梯度的值,从而在开始检查紧密度时没有时间; 和(d)当衰减梯度的值小于阈值衰减梯度时,得出关于通气系统的紧密度的结论。 以这种方式,一旦满足测试条件,就可以开始确定已经建立的差压的衰减梯度的值。 还公开了一种用于执行该方法的装置。