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1. 发明授权

US06234152B1 Method of checking the operability of a tank-venting system 失效
标题翻译：检查排气系统的可操作性的方法
公开(公告)号：US06234152B1
公开(公告)日：2001-05-22
申请号：US09372061
申请日：1999-08-11
申请人： Thorsten Fritz , Lutz Reuschenbach
发明人： Thorsten Fritz , Lutz Reuschenbach
IPC分类号： F02M3302
CPC分类号： B60K15/03519 , B60K2015/0319 , B60K2015/0321 , B60K2015/03243 , B60K2015/03514 , F02M25/0818
摘要： The invention is directed to a method for checking the operability of a tank-venting system of a vehicle. A pressure source introduces an overpressure into the tank-venting system with the pressure source having operating characteristic variables. A conclusion is drawn as to the ambient temperature from one of the operating characteristic variables and a determination is made as to whether the ambient temperature lies within a pregiven temperature interval. Only if the ambient temperature lies within the pregiven temperature interval is an overpressure introduced into the tank-venting system relative to atmospheric pressure. One of the operating characteristic variables of the pressure source is detected as the overpressure is introduced into the tank-venting system to obtain a pressure trace of the pressure in the tank-venting system. A conclusion as to the presence of a leak in the tank-venting system is drawn from the pressure trace.
摘要翻译：本发明涉及一种用于检查车辆的排气系统的可操作性的方法。压力源将压力源引入具有操作特性变量的储罐通气系统中。从工作特性变量之一得出环境温度的结论，并确定环境温度是否在预先设定的温度区间内。只有当环境温度处于预热温度区间内时，相对于大气压力才会引入通气系统中的过压。检测出压力源的工作特性变量之一，因为超压被引入到排气系统中，以获得油箱排气系统压力的压力曲线。从压力曲线中得出关于储罐排放系统中存在泄漏的结论。

2. 发明授权

US6131550A Method for checking the operability of a tank-venting system 有权
标题翻译：检查排气系统可操作性的方法
公开(公告)号：US6131550A
公开(公告)日：2000-10-17
申请号：US263787
申请日：1999-03-05
申请人： Thorsten Fritz , Andreas Blumenstock
发明人： Thorsten Fritz , Andreas Blumenstock
IPC分类号： B60K15/01 , F02B77/08 , F02D41/00 , F02D41/22 , F02M25/08 , F02M37/00 , G01M3/26 , F02M33/02
CPC分类号： F02M25/0818
摘要： The invention is directed to a method for checking the operability of a tank-venting system of a motor vehicle. The tank-venting system includes a tank, an adsorption filter and a tank-venting valve. The adsorption filter has a venting line and is connected to the tank via a connecting line. The tank-venting valve is connected to the adsorption filter via a valve line. In the method, a pressure source introduces a pressure into the tank-venting system which is an overpressure compared to atmospheric pressure and the pressure source has at least one operating variable. A first time-dependent trace of the one variable is provided and this trace is characteristic for a diagnostic trace undisturbed by a tanking operation. A second time-dependent trace of the one variable is detected during standstill of the vehicle and is compared to the first time-dependent trace. An output of a fault announcement is inhibited when the second time-dependent trace deviates from the first time-dependent trace by a pregiven value.
摘要翻译：本发明涉及一种用于检查机动车辆的通风系统的可操作性的方法。排气系统包括罐，吸附过滤器和排罐阀。吸附过滤器具有排气管线，并通过连接管线连接到油箱。通气阀通过阀线连接到吸附过滤器。在该方法中，压力源将压力引入到与大气压力相比是过压的罐排放系统中，并且压力源具有至少一个操作变量。提供一个变量的第一时间依赖的轨迹，并且该轨迹是由油罐操作不受干扰的诊断轨迹的特征。在车辆停止期间检测到一个变量的第二个时间依赖的轨迹，并将其与第一个时间相关的轨迹进行比较。当第二时间相关轨迹偏离第一时间依赖轨迹由预先设定的值时，故障通知的输出被禁止。

3. 发明授权

US5890474A Method and arrangement for checking the operability of a tank-venting system 失效
标题翻译：检查排气系统的可操作性的方法和装置
公开(公告)号：US5890474A
公开(公告)日：1999-04-06
申请号：US900335
申请日：1997-07-25
申请人： Eberhard Schnaibel , Helmut Schwegler , Ulrich Kuhn , Werner Krauss , Thorsten Fritz , Andreas Blumenstock , Stephan Uhl , Michael Nicolaou , Lutz Reuschenbach , Georg Mallebrein , Michael Hermann
发明人： Eberhard Schnaibel , Helmut Schwegler , Ulrich Kuhn , Werner Krauss , Thorsten Fritz , Andreas Blumenstock , Stephan Uhl , Michael Nicolaou , Lutz Reuschenbach , Georg Mallebrein , Michael Hermann
IPC分类号： G01M3/26 , F02M25/08 , G01M3/32 , F02M37/04
CPC分类号： F02M25/0818
摘要： The invention is directed to a method and arrangement for checking the operability of a vessel. Pressure is introduced into the vessel utilizing a pressure source having operating variables which vary during operation of the pressure source. These operating variables are detected while the pressure is introduced into the vessel and a conclusion as to a presence of a leak in the vessel is drawn from the operating variables. By utilizing the operating variables, a statement as precise as possible is provided as to the presence of the leak with as little additional equipment as possible.
摘要翻译：本发明涉及一种用于检查船只的可操作性的方法和装置。使用具有在压力源的操作期间变化的操作变量的压力源将压力引入容器中。在将压力引入容器中时检测这些操作变量，并从操作变量中得出关于容器中存在泄漏的结论。通过利用操作变量，尽可能精确地提供尽可能少的附加设备的泄漏的存在。

4. 发明授权

US06845652B2 Method and device for diagnosing tank leaks using a reference measuring method 有权
标题翻译：使用参考测量方法诊断油箱泄漏的方法和装置
公开(公告)号：US06845652B2
公开(公告)日：2005-01-25
申请号：US10178459
申请日：2002-06-24
申请人： Volk r Stegmann , Thorsten Fritz , Martin Streib , Peter Wiltsch , Armin Hassdenteufel
发明人： Volk r Stegmann , Thorsten Fritz , Martin Streib , Peter Wiltsch , Armin Hassdenteufel
IPC分类号： G01M3/26 , G01M3/02 , G01M3/32 , G01M3/04
CPC分类号： F02M25/0818 , G01M3/025 , G01M3/3236 , G01M3/3263
摘要： In a method and a device for leak testing of a vessel, e.g., a tank venting system of a motor vehicle, a leak-tightness measurement is performed by introducing a positive pressure or partial vacuum and detecting the variation over time of a positive pressure or partial vacuum in the vessel, and a reference measurement is performed using a reference leak. A conclusion is drawn as to the presence of a leak in the vessel by comparing the results of the leak-tightness measurement and the reference measurement. To avoid faulty diagnoses, the positive pressure or partial vacuum during the leak-tightness measurement and the reference measurement is detected by using a single pressure measuring device.
摘要翻译：在用于容器（例如机动车辆的罐排放系统）的泄漏测试的方法和装置中，通过引入正压或部分真空并检测正压力随时间的变化来执行密封性测量，或在容器中部分真空，并使用参考泄漏进行参考测量。通过比较密封性测量结果和参考测量结果，可以得出结论：容器中存在泄漏。为了避免故障诊断，通过使用单个压力测量装置检测泄漏密封性测量期间的正压力或部分真空度和参考测量值。

5. 发明授权

US06644100B2 Method for conducting a leak test of a tank ventilation system of a vehicle 有权
公开(公告)号：US06644100B2
公开(公告)日：2003-11-11
申请号：US09980902
申请日：2001-12-16
申请人： Thorsten Fritz , Lutz Reuschenbach
发明人： Thorsten Fritz , Lutz Reuschenbach
IPC分类号： G01M304
CPC分类号： F02M25/0818
摘要： A method for checking the tightness of a tank-venting system of a vehicle wherein one introduces an overpressure or underpressure compared to the atmospheric pressure via a pressure source alternately into the tank-venting system and a reference leak of a defined size connected in parallel to the tank-venting system over a pregiven time interval and wherein one detects at least one operating characteristic variable of the pressure source when introducing the pressure into the tank-venting system (tank measurement) as well as when introducing the pressure into the reference leak (reference measurement) and wherein one compares the two measurements and, when there is a deviation of the tank measurement from the reference measurement by a pregivable value, one draws a conclusion as to a leak when there is a deviation of the tank measurement from the reference measurement by a pregivable value and the method is characterized in that one draws a conclusion as to the operability of the tank-venting valve of the tank-venting system from the time-dependent trace of the operating characteristic variable for the tank measurement.

6. 发明授权

US06250288B1 Method for checking the operability of a tank-venting system of a vehicle 有权
标题翻译：用于检查车辆的排气系统的可操作性的方法
公开(公告)号：US06250288B1
公开(公告)日：2001-06-26
申请号：US09372060
申请日：1999-08-11
申请人： Thorsten Fritz
发明人： Thorsten Fritz
IPC分类号： F02M3302
CPC分类号： F02M25/0818
摘要： The invention is directed to a method for checking the operability of a tank-venting system of a vehicle. A pressure source is operatively connected to the tank-venting system and a first fill level of the tank is determined and stored at the start of a standstill of the vehicle. An overpressure relative to atmospheric pressure is introduced into the tank-venting system during the standstill of the vehicle and an operating characteristic variable of this pressure source is detected as the overpressure is introduced into the tank-venting system. A conclusion as to the presence of a leak in the tank-venting system is drawn from the operating characteristic variable. A second fill level of the tank at the end of the standstill is determined and stored. The difference of the first and second fill levels is formed and a determination is made as to whether the difference exceeds a pregiven threshold value; and, only if the threshold value is exceeded, a fault announcement is outputted.
摘要翻译：本发明涉及一种用于检查车辆的排气系统的可操作性的方法。压力源可操作地连接到罐排放系统，并且在车辆停止开始时确定并存储罐的第一填充水平。在车辆停止期间，相对于大气压力的超压被引入到排气系统中，并且当超压被引入到罐排放系统中时，检测到该压力源的工作特性变量。从运行特征变量中可以得出关于在排气系统中存在泄漏的结论。确定并存储在停止结束时的罐的第二填充水平。形成第一和第二填充水平的差异，并且确定差异是否超过预先设定的阈值; 并且仅当超过阈值时才输出故障通知。

7. 发明授权

US6105557A Method of checking the operability of a tank-venting system 失效
标题翻译：检查排气系统的可操作性的方法
公开(公告)号：US6105557A
公开(公告)日：2000-08-22
申请号：US358478
申请日：1999-07-21
申请人： Eberhard Schnaibel , Thorsten Fritz , Lutz Reuschenbach
发明人： Eberhard Schnaibel , Thorsten Fritz , Lutz Reuschenbach
IPC分类号： G01M3/26 , F02M25/08 , F02M33/02
CPC分类号： F02M25/0818
摘要： The invention is directed to a method for checking the operability of a tank-venting system. The tank-venting system includes a tank, an adsorption filter having a tank-venting line, a connecting line for connecting the adsorption filter to the tank, a tank-venting valve and a valve line connecting the adsorption filter to the tank-venting valve. A pressure source is provided for introducing a pressure into the tank-venting system, an operating characteristic variable of the pressure source is detected only over a pregiven time interval (.DELTA.t.sub.m) when introducing the pressure to obtain a time-dependent trace of the operating characteristic variable. The time-dependent trace is extrapolated and a conclusion is drawn as to the presence of a leak therefrom.
摘要翻译：本发明涉及一种用于检查罐排气系统的可操作性的方法。排气系统包括一个罐，一个吸气过滤器，一个排气管，一个用于将吸附过滤器连接到油箱的连接管，一个油箱排放阀和一个将吸附过滤器连接到油箱排放阀。提供压力源以将压力引入到罐排放系统中，当引入压力以获得操作的时间依赖性痕迹时，压力源的操作特性变量仅在预制时间间隔（DELTA tm）上被检测特征变量。时间依赖的曲线被外推，并且得出关于其中存在泄漏的结论。

8. 发明授权

US06889667B2 Tank-venting system in a motor vehicle and method for checking the operability of the tank-venting system 失效
标题翻译：机动车辆的排气系统以及用于检查排气系统的可操作性的方法
公开(公告)号：US06889667B2
公开(公告)日：2005-05-10
申请号：US10378616
申请日：2003-03-05
申请人： Thorsten Fritz , Dieter Lederer , Karl-Bernhard Lederle
发明人： Thorsten Fritz , Dieter Lederer , Karl-Bernhard Lederle
IPC分类号： G01M3/26 , F02M25/08 , B60K15/035
CPC分类号： F02M25/0818
摘要： A method checks the operability of a tank-venting system for a motor vehicle having an internal combustion engine. The tank-venting system includes a fuel tank (10), an adsorption filter (20) and a filter line (12) connecting the adsorption filter to the fuel tank. The adsorption filter (20) has a venting line (22) and a switchover/check valve (70) is provided for closing off the venting line (22). The system includes a tank-venting valve (90) and a valve line (24) connecting the tank-venting valve to the adsorption filter. In the method, an overpressure relative to atmospheric pressure is introduced into the tank-venting system utilizing a drivable pressure source (50). An operating characteristic variable of the pressure source is detected while introducing the overpressure to determine the pressure course. A conclusion is drawn as to the presence of a leak from the pressure course. The overpressure is reduced by opening the tank-venting valve (90) and simultaneously closing said switchover/check valve (70).
摘要翻译：一种方法检查具有内燃机的机动车辆的排气系统的可操作性。排气系统包括将吸附过滤器连接到燃料箱的燃料箱（10），吸附过滤器（20）和过滤管线（12）。吸附过滤器（20）具有排气管线（22），并且设置有切断/止回阀（70）以关闭通气管线（22）。该系统包括一个通气阀（90）和一个将排气阀连接到吸附过滤器的阀线（24）。在该方法中，使用可驱动的压力源（50）将相对于大气压的超压引入到排气系统中。在引入过压的同时检测压力源的工作特性变量以确定压力进程。得出的结论是压力过程中存在泄漏。通过打开通气阀（90）并同时关闭所述切换/止回阀（70）来减小过压。

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