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94 条记录 (耗时 0.025 秒)

    Method and arrangement for diagnosing a tank-venting system
    2.
    发明授权
    Method and arrangement for diagnosing a tank-venting system 失效
    诊断通气系统的方法和装置

    公开(公告)号：US5666925A

    公开(公告)日：1997-09-16

    申请号：US647757

    申请日：1996-05-15

    申请人： Helmut Denz ,  Ernst Wild ,  Andreas Blumenstock ,  Georg Mallebrein

    发明人： Helmut Denz ,  Ernst Wild ,  Andreas Blumenstock ,  Georg Mallebrein

    IPC分类号： G01M3/24 ,  B60K15/077 ,  F02M25/08 ,  F02M37/00 ,  G01M3/26 ,  F02M37/04

    CPC分类号： F02M25/0809

    摘要： 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.

    摘要翻译： 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。

    Tank-venting apparatus as well as a method and an arrangement for checking the same
    7.
    发明授权
    Tank-venting apparatus as well as a method and an arrangement for checking the same 失效
    作为检查方法和装置的油罐装置

    公开(公告)号：US5205263A

    公开(公告)日：1993-04-27

    申请号：US865923

    申请日：1992-04-09

    申请人： Andreas Blumenstock ,  Helmut Denz ,  Werner Mezger ,  Ernst Wild

    发明人： Andreas Blumenstock ,  Helmut Denz ,  Werner Mezger ,  Ernst Wild

    IPC分类号： G01M3/26 ,  B60K15/035 ,  F02M25/08 ,  G01M15/04

    CPC分类号： F02M25/0809 ,  B60K15/03504

    摘要： The invention is directed to a method of checking a tank-venting apparatus for a motor vehicle equipped with a fuel tank and an internal combustion engine having an intake pipe. The apparatus includes an adsorption filter having a venting end and an intake end, a supply line connecting the intake end to the tank and a connecting line interconnecting the intake pipe of the engine and the intake end of the adsorption filter. A tank-venting valve is mounted in the connecting line between the intake pipe and the intake end of the adsorption filter and a drive unit for actuating the tank-venting valve. The method includes the steps of: changing the open state of the tank-venting valve when a pregiven operating state range of the engine is present; detecting the difference pressure between the pressure at the intake end of the adsorption filter and the ambient pressure; checking if the difference pressure or the end value of the difference pressure change lies in a predetermined range after the open state of the tank-venting valve is changed; and, issuing a fault announcement if neither the difference pressure, the time constant of the difference pressure change nor the end value of the difference pressure change lies in said predetermined range. The invention utilizes the realization that the difference pressure is based on the gas flow into and out of the adsorption filter. The difference pressure drops when the outflow is clogged or when there is a leak. On the other hand, the difference pressure increases when the inflow is clogged. In this way, the operability of the tank-venting apparatus can be checked in a simple manner.

    摘要翻译： 本发明涉及一种检查装备有燃料箱的机动车辆的排气装置和具有进气管的内燃机的方法。 该装置包括具有通气端和进气端的吸附过滤器，将进气端连接到油箱的供给管线和将发动机的进气管与吸附过滤器的进气端相连的连接管线。 排气阀安装在进气管和吸附过滤器的进气端之间的连接管路中，以及用于致动排气阀的驱动单元。 该方法包括以下步骤：当存在发动机的预定运行状态范围时改变通气阀的打开状态; 检测吸附过滤器吸入端的压力与环境压力之间的差压; 检查在压力变化的打开状态发生变化之后，差压变化的差压或者结束值是否在规定的范围内， 以及如果差压，差压变化的时间常数和差压变化的结束值都不在所述预定范围内，则发出故障通知。 本发明利用差压是基于进入和离开吸附过滤器的气体流量的认识。 当流出物堵塞或泄漏时，差压力下降。 另一方面，当流入物堵塞时，差压增加。 以这种方式，可以以简单的方式检查罐排放装置的可操作性。

    Method and device for determining the gas intake in an internal combustion engine
    9.
    发明授权
    Method and device for determining the gas intake in an internal combustion engine 有权
    用于确定内燃机中的气体摄入的方法和装置

    公开(公告)号：US06352065B1

    公开(公告)日：2002-03-05

    申请号：US09508725

    申请日：2000-06-23

    申请人： Ernst Wild ,  Lutz Reuschenbach ,  Nikolaus Benninger ,  Hendrik Koerner ,  Werner Hess ,  Hong Zhang ,  Georg Mallebrein ,  Harald Von Hofmann

    发明人： Ernst Wild ,  Lutz Reuschenbach ,  Nikolaus Benninger ,  Hendrik Koerner ,  Werner Hess ,  Hong Zhang ,  Georg Mallebrein ,  Harald Von Hofmann

    IPC分类号： F02D4118

    CPC分类号： F02D41/0072 ,  F02D41/0062 ,  F02D41/1401 ,  F02D41/187 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2200/0402 ,  Y02T10/47

    摘要： A method for determining a gas charge of an internal combustion engine having an intake manifold. The intake manifold has a gas mixture, which is a fresh air/fuel mixture and an exhaust gas, and further has a gas mass flow from the intake manifold and an intake manifold pressure. The method includes the steps of determining a partial pressure of the fresh air/fuel mixture in the gas mass flow by setting up a mass balance for a fresh air/fuel mixture mass flow, determining a partial pressure of the exhaust gas in the gas mass flow by setting up a mass balance for an exhaust gas mass flow, and determining a gas mass flow via a throttle based on a function that depends on a temperature compensation factor, a pressure compensation factor and a factor depending on a ratio of a pressure downstream of the throttle to a pressure upstream of the throttle. The pressure downstream of the throttle corresponds to the intake manifold pressure.

    摘要翻译： 一种用于确定具有进气歧管的内燃机的气体充量的方法。 进气歧管具有气体混合物，其是新鲜空气/燃料混合物和废气，并且还具有来自进气歧管的气体质量流和进气歧管压力。 该方法包括以下步骤：通过设定新鲜空气/燃料混合物质量流的质量平衡来确定气体质量流中的新鲜空气/燃料混合物的分压，确定气体质量中排气的分压 通过设置废气质量流的质量平衡来流动，以及基于取决于温度补偿因子，压力补偿因子和根据下游压力比的比例的函数，通过节气门来确定气体质量流量 的节气门到节气门上游的压力。 节气门下游的压力对应于进气歧管压力。

    Method and device for controlling operation of a vehicle
    10.
    发明授权
    Method and device for controlling operation of a vehicle 有权
    用于控制车辆操作的方法和装置

    公开(公告)号：US06256576B1

    公开(公告)日：2001-07-03

    申请号：US09432956

    申请日：1999-11-03

    申请人： Ernst Wild ,  Juergen Pantring ,  Mirjam Steger ,  Lutz Reuschenbach ,  Michael Order ,  Werner Hess ,  Georg Mallebrein ,  Christian Koehler

    发明人： Ernst Wild ,  Juergen Pantring ,  Mirjam Steger ,  Lutz Reuschenbach ,  Michael Order ,  Werner Hess ,  Georg Mallebrein ,  Christian Koehler

    IPC分类号： F02D4126

    CPC分类号： F02D41/26 ,  F02D41/3029 ,  F02D2250/12

    摘要： The method for controlling operation of a vehicle having at least two possible operating modes includes calculating and/or determining the operating variables and/or control variables of at least one active one of at least two possible operating modes in a first continually repeated predetermined time interval and calculating and/or determining the operating variables and/or control variables of at least one inactive one of the at least two possible operating modes in at least one other continually repeated predetermined time interval. The first predetermined time interval is shorter than any of the one or more other predetermined time interval(s). A device for performing the method is also described.

    摘要翻译： 用于控制具有至少两种可能的操作模式的车辆的操作的方法包括在第一连续重复的预定时间间隔中计算和/或确定至少两个可能的操作模式中的至少一个活动的一个的操作变量和/或控制变量 以及在至少一个其他连续重复的预定时间间隔中计算和/或确定所述至少两个可能的操作模式中的至少一个不活动的操作变量和/或控制变量。 第一预定时间间隔比一个或多个其它预定时间间隔中的任何一个短。 还描述了用于执行该方法的装置。