公开(公告)号：US5604305A

公开(公告)日：1997-02-18

申请号：US404755

申请日：1995-03-15

申请人： Helmut Denz ,  Andreas Blumenstock

发明人： Helmut Denz ,  Andreas Blumenstock

IPC分类号： F02D41/08 ,  F02D41/14 ,  F02D41/22 ,  F02D45/00 ,  F02M25/08 ,  F02M26/49 ,  G05B9/02 ,  G05B23/02 ,  G01M15/00

CPC分类号： F02D41/221 ,  F02M25/0809 ,  F02M26/49 ,  G05B9/02 ,  Y02T10/40

摘要： The invention relates to a method for diagnosing the function of an adjusting device and includes the steps of: driving the adjusting device, detecting the effect of driving the adjusting device on a predetermined variable operatively coupled to the adjusting device; determining the adjusting device to be operable when the effect lies in a first range of possible values; and, determining the adjusting device to be inoperable when the effect lies in a second range of possible values. A third range is defined which separates the first and second ranges from each other. The method is interrupted or repeated when the effect lies in the third range.

摘要翻译： 本发明涉及一种用于诊断调节装置的功能的方法，包括以下步骤：驱动调节装置，检测驱动调节装置对可调节装置操作的预定变量的影响; 当所述效果位于可能值的第一范围内时，确定所述调节装置是可操作的; 以及当所述效果在可能值的第二范围内时，确定所述调节装置不能操作。 定义了将第一和第二范围彼此分开的第三范围。 当效果在第三范围内时，该方法被中断或重复。

公开(公告)号：US5553577A

公开(公告)日：1996-09-10

申请号：US316459

申请日：1994-09-30

申请人： Helmut Denz ,  Andreas Blumenstock

发明人： Helmut Denz ,  Andreas Blumenstock

IPC分类号： G01M3/26 ,  B60K15/035 ,  B60K15/077 ,  F02M25/08 ,  F02M37/04

CPC分类号： B60K15/03504 ,  F02M25/0818

摘要： An apparatus for checking a tank venting system for leaks that serves to vent a fuel tank of a motor vehicle whose engine has a intake tube. The apparatus has an absorption filter connected to a ventilation line, which can be closed by means of a shutoff valve, and pressure producing devices for the production of an overpressure in the fuel tank. The pressure producing devices are embodied as actuatable by means of the vacuum in the intake tube in order to be able to forego the separate electromechanical drive devices for the pressure producing devices which have been necessary in the prior art.

摘要翻译： 一种用于检查用于泄漏的罐排气系统的装置，其用于排放具有进气管的发动机的机动车辆的燃料箱。 该装置具有连接到可以通过截止阀关闭的通风管道的吸收过滤器和用于在燃料箱中产生超压的压力产生装置。 压力产生装置通过进气管中的真空被实施为可致动的，以便能够放弃现有技术中必需的压力产生装置的单独的机电驱动装置。

公开(公告)号：US5463998A

公开(公告)日：1995-11-07

申请号：US129039

申请日：1993-10-04

申请人： Helmut Denz ,  Andreas Blumenstock

发明人： Helmut Denz ,  Andreas Blumenstock

IPC分类号： F02M25/08 ,  F02M33/02

CPC分类号： F02M25/0809

摘要： A method for checking the operability of a tank-venting system in a vehicle having an internal combustion engine, which tank-venting system has a tank with a tank-pressure sensor, an adsorption filter connected to the tank via a tank-connecting line, and a tank-venting valve which is connected to the adsorption filter via a valve line, in which system the adsorption filter has a venting line which can be closed with the aid of a shut-off valve, has the following steps:closing the shut-off valve;opening the tank-venting valve;determining the build-up gradient (p+) of the underpressure building up in the tank;closing the tank-venting valve;determining the decay gradient (p-) of the decaying underpressure in the tank;mathematically combining the build-up and decay gradients in a manner such that the influence of the fill level has as little effect as possible on the evaluation variable (Q) formed by means of the combination; and,comparing the value of the evaluation variable with a threshold value (Q.sub.-- SW) and evaluating the system as non-operative if the value of the evaluation variable and the threshold value fulfill a pregiven relationship.

摘要翻译： PCT No.PCT / DE93 / 00019 Sec。 371日期：1993年10月4日 102（e）日期1993年10月4日PCT提交1993年1月14日PCT公布。 出版物WO93 / 153133 日期：1995年8月5日。一种用于检查具有内燃机的车辆中的排气系统的可操作性的方法，该排气系统具有带有罐压传感器的罐，连接到罐的吸附过滤器 通过罐连接管路和通过阀线连接到吸附过滤器的排气阀，其中吸附过滤器具有可以通过截止阀关闭的通气管道的系统具有 以下步骤：关闭截止阀; 打开通气阀; 确定坦克中负压建筑物的积聚梯度（p +）; 关闭排气阀; 确定罐中腐蚀负压的衰减梯度（p-）; 以积累和衰减梯度的数学方式组合，使得填充水平的影响对通过组合形成的评估变量（Q）具有尽可能小的影响; 以及将所述评估变量的值与阈值（Q-SW）进行比较，并且如果所述评估变量的值和所述阈值达到预先确定的关系，则将所述系统评估为非操作的。

公开(公告)号：US5442551A

公开(公告)日：1995-08-15

申请号：US989026

申请日：1993-03-11

申请人： Helmut Denz ,  Ernst Wild ,  Andreas Blumenstock

发明人： Helmut Denz ,  Ernst Wild ,  Andreas Blumenstock

IPC分类号： B60K15/035 ,  F02D35/00 ,  F02M25/08 ,  G01M3/26 ,  F02M33/02 ,  G01M15/00

CPC分类号： G01M3/26 ,  B60K15/03504 ,  F02M25/0809

摘要： A method for determining the operability of a tank-venting system on a motor vehicle subjects the signals for the volume flow through the tank-venting valve and the signals for the pressure difference between the tank interior and the ambient to a cross-covariance analysis. The above-mentioned signals are formed by a high pass in advance of forming the cross-covariance function and the maximum or the mean value of the cross-covariance function is formed with respect to the product of the two input variables. A variance measure is formed for the signal of the volume flow through the tank-venting valve and a transfer factor is computed from the variance measure and the mean value or maximum. The tank-venting system is deemed to be operational when the transfer range lies in a pregiven region. An advantage of the method is seen in the independence of the tank-pressure changes which are not caused by volume-flow changes through the tank-venting valve. Here, changes are especially of concern which are caused by the sudden generation of vapor in the tank such as caused by sloshing fuel.

摘要翻译： PCT No.PCT / DE92 / 00504 Sec。 371日期1993年3月11日 102（e）1993年3月11日PCT PCT 1992年6月19日PCT公布。 出版物WO93 / 01405 日期：1993年1月21日。一种用于确定机动车辆上的排气系统的可操作性的方法，经由通气阀的体积流量的信号和罐内部与环境之间的压力差的信号 进行交叉协方差分析。 上述信号在形成交叉协方差函数之前通过高通形成，并且相对于两个输入变量的乘积形成互协方差函数的最大值或平均值。 对于通过排罐阀的体积流量的信号形成方差测量，并根据方差测量值和平均值或最大值计算转移系数。 当转移范围在预制区域时，通风系统被认为是可操作的。 该方法的优点在于容器压力变化的独立性，这不是通过通气阀的体积流量变化引起的。 在这里，特别关注的是由于罐内蒸气的突然产生，如由燃料挥动引起的。

公开(公告)号：US5255515A

公开(公告)日：1993-10-26

申请号：US981844

申请日：1992-11-25

申请人： Andreas Blumenstock ,  Ernst Wild ,  Helmut Denz ,  Klaus Ries-Muller

发明人： Andreas Blumenstock ,  Ernst Wild ,  Helmut Denz ,  Klaus Ries-Muller

IPC分类号： F01N3/20 ,  F01N11/00 ,  F02B77/08 ,  F02D35/00 ,  G01M15/04 ,  G01N33/00 ,  F07N3/20

CPC分类号： F01N11/007 ,  F01N2550/02 ,  Y02T10/47

摘要： The invention is directed to a method for obtaining a value for evaluating the performance loss of a catalytic converter with the aid of a forward signal of a forward gas probe mounted forward of the catalytic converter and a rearward signal of a rearward gas probe mounted rearward of the catalytic converter, the catalytic converter being connected to an internal combustion engine. The method includes the steps of: carrying out the method during the steady-state operation of the engine; multiplying the forward signal and the rearward signal with each other to form a plurality of products; averaging the products over a plurality of oscillations of the forward signal to obtain a mean value; and, utilizing the mean value as a value for evaluating the performance loss of the catalytic converter. This correlation method can be varied in different ways and especially in that the forward-probe signal is correlated without or with phase shift with the rearward-probe signal. A cross-correlation factor or the real or imaginary component of an orthogonal correlation or other correlation values are obtained in dependence upon the nature of the correlation. These correlation values are used for evaluating the performance loss of the catalytic converter. The evaluation of the performance loss of the catalytic converter with the aid of these correlation values is very significantly more reliable than the evaluation with the aid of amplitudes or amplitude mean values of the probe signals.

摘要翻译： 本发明涉及一种用于通过安装在催化转化器前方的正向气体探针的前向信号和后方气体探针的向后信号获得用于评估催化转化器的性能损失的值的方法， 催化转化器，催化转化器连接到内燃机。 该方法包括以下步骤：在发动机的稳态运行期间执行该方法; 将前向信号和后向信号彼此相乘以形成多个乘积; 在正向信号的多个振荡中对产品进行平均以获得平均值; 并利用平均值作为评价催化转化器的性能损失的值。 该相关方法可以以不同的方式变化，特别是前向探针信号与后向探测信号无相关或相移相关。 取决于相关性质，获得正交相关或其他相关值的互相关因子或实分量或虚分量。 这些相关值用于评估催化转化器的性能损失。 借助于这些相关值对催化转化器的性能损失的评估与借助于探测信号的幅度或振幅平均值的评估相比非常显着更可靠。

公开(公告)号：US5373830A

公开(公告)日：1994-12-20

申请号：US98346

申请日：1993-08-06

申请人： Helmut Denz ,  Hans Neu ,  Guenther Riehl ,  Andreas Blumenstock ,  Rainer Frank

发明人： Helmut Denz ,  Hans Neu ,  Guenther Riehl ,  Andreas Blumenstock ,  Rainer Frank

IPC分类号： B60K15/035 ,  F02M25/08 ,  F02M37/04

CPC分类号： B60K15/03504 ,  B60K15/03519 ,  F02M25/0854

摘要： A breather valve for the gas tank of an internal combustion engine having an adsorption filter which is linked to the atmosphere by a breather line which is controlled by a shut-off valve. The tank breather valve is constructed so that pressure build up in the fuel tank, the lines, and the adsorption filter do not lead to damage of the valves. The magnetic circuit of the shut-off valve provides that above a predetermined pressure in the adsorption filter, the generated pressure is sufficient to open the shut-off valve, thereby facilitating pressure relief without any damage. The breather is particularly suitable for internal combustion engines in motor vehicles.

摘要翻译： 一种具有吸附过滤器的内燃机的气罐的通气阀，吸附过滤器通过由截止阀控制的通气管线连接到大气。 油箱通气阀的构造使得在燃油箱，管路和吸附过滤器中的压力不会导致阀的损坏。 截止阀的磁回路在吸附过滤器中提供高于预定压力，所产生的压力足以打开截止阀，从而有助于压力释放而没有任何损坏。 呼吸器特别适用于机动车内燃机。

公开(公告)号：US5220896A

公开(公告)日：1993-06-22

申请号：US811526

申请日：1991-12-20

申请人： Andreas Blumenstock ,  Helmut Denz ,  Ulrich Steinbrenner ,  Ernst Wild

发明人： Andreas Blumenstock ,  Helmut Denz ,  Ulrich Steinbrenner ,  Ernst Wild

IPC分类号： F02B77/08 ,  B60K15/035 ,  F02M25/08 ,  F02M37/00

CPC分类号： B60K15/03504

摘要： A tank-venting arrangement includes: a tank; an adsorption filter connected to the tank; a tank-venting valve interconnecting the adsorption filter and the intake pipe of the engine; a control unit for driving the tank-venting valve so that it closes or opens; a pressure difference sensor for measuring the pressure difference between the pressure in the tank and the ambient pressure; and, an integrating unit for determining the time integral of the pressure difference. With this tank-venting arrangement, a simple and reliable determination can be made as to when so much fuel vapor should have been adsorbed in the active charcoal filter so that when the tank-venting valve is opened thereafter, a lean correction by means of a lambda controller can be required. If this lean correction is not made, this is an indication that the fuel flowing from the tank has not reached the tank-venting valve so that the tank-venting arrangement leaks or is obstructed.

摘要翻译： 排气装置包括：罐; 连接到罐的吸附过滤器; 将吸附过滤器与发动机的进气管相连接的排气阀; 控制单元，用于驱动所述排气阀使其关闭或打开; 压力差传感器，用于测量罐中的压力与环境压力之间的压力差; 以及用于确定压力差的时间积分的积分单元。 通过这种排气装置，可以简单可靠地确定当活性炭过滤器吸附多少燃料蒸汽时，当其后打开排气阀时，借助于 可以使用lambda控制器。 如果没有进行精益校正，这表明从罐中流出的燃料没有到达排放阀，以致于排气装置泄漏或被阻塞。

公开(公告)号：US5197442A

公开(公告)日：1993-03-30

申请号：US811294

申请日：1991-12-20

申请人： Andreas Blumenstock ,  Helmut Denz ,  Ulrich Steinbrenner ,  Ernst Wild

发明人： Andreas Blumenstock ,  Helmut Denz ,  Ulrich Steinbrenner ,  Ernst Wild

IPC分类号： B60K15/077 ,  B60K15/035 ,  F02M25/08 ,  F02M37/00

CPC分类号： B60K15/03504 ,  F02M25/0818

摘要： A tank-venting arrangement includes: a tank having a tank closure; an electrically drivable check valve; an adsorption filter; connecting lines for interconnecting the above components; a difference pressure sensor which measures the pressure difference between the pressure in the tank and the ambient pressure and supplies a pressure difference signal; a comparator which, at least for a running engine, compares the pressure difference signal to upper and lower threshold values and supplies an opening signal to the check valve to open the latter when the pressure difference signal is greater than the upper threshold value and a closure signal for closing the check valve when the pressure difference signal drops below the lower threshold value; and, a detector unit which supplies an opening signal to the check valve for opening the check valve when the sensor determines a possible opening of the tank and a closure signal for closing the check valve when the sensor determines a possible closure of the tank. With the aid of the check valve and the difference pressure sensor which measures the pressure difference between the pressure in the tank and the ambient pressure, the tank-venting arrangement can be so operated that at least for a running engine, a desired maximum overpressure in the tank can be obtained relative to the ambient pressure independently of the extent of the underpressure in that part of the arrangement forward of the check valve.

摘要翻译： 排气装置包括：具有罐盖的罐; 电驱动止回阀; 吸附过滤器; 用于连接上述部件的连接线; 差压传感器，其测量罐中的压力与环境压力之间的压力差，并提供压力差信号; 比较器，其至少对于运行的发动机，将压力差信号与上限和下限阈值进行比较，并且当压力差信号大于上限阈值时，向止回阀提供打开信号以打开后者， 当压力差信号下降到低于阈值时关闭止回阀的信号; 以及检测器单元，当传感器确定罐的可能打开时，检测器单元向打开止回阀的打开信号提供打开信号，以及当传感器确定罐可能关闭时关闭止回阀的关闭信号。 借助于止回阀和差压传感器，该差压传感器测量罐中的压力与环境压力之间的压力差，罐排气装置可以如此操作，使得至少对于运行的发动机来说，期望的最大超压在 可以独立于止回阀向前的布置部分的负压程度，相对于环境压力获得罐。

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。

公开(公告)号：US5460141A

公开(公告)日：1995-10-24

申请号：US246518

申请日：1994-05-20

申请人： Helmut Denz ,  Ernst Wild ,  Andreas Blumenstock

发明人： Helmut Denz ,  Ernst Wild ,  Andreas Blumenstock

IPC分类号： F02M25/08 ,  F02M33/02

CPC分类号： F02M25/0809

摘要： 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.

摘要翻译： 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。