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1. 发明申请

US20060137437A1 Fuel vapor treatment system with leak diagnosing 失效
标题翻译：具有泄漏诊断功能的燃油蒸气处理系统
公开(公告)号：US20060137437A1
公开(公告)日：2006-06-29
申请号：US11261488
申请日：2005-10-31
申请人： Takeshi Tsuyuki , Takane Hayashi , Hiroya Ishii
发明人： Takeshi Tsuyuki , Takane Hayashi , Hiroya Ishii
IPC分类号： G01M19/00
CPC分类号： F02M25/0818
摘要： A fuel vapor purge system is configured to execute a highly accurate leak diagnosis with respect to a fuel vapor leak. After the engine is stopped, the temperature of the fuel vapor rises temporarily and then decreases until it reaches the outside ambient temperature. During this period, the purge line is closed off and a purge line pressure decreasing rate is detected when the purge line pressure is slightly above atmospheric pressure. The detected purge line pressure decreasing rate is then compared to a threshold value. The purge system is diagnosed as “normal” if the purge line pressure decreasing rate is equal to or larger than the threshold value and as “leaking” if the purge line pressure decreasing rate is less than the threshold value.
摘要翻译：燃料蒸汽吹扫系统被配置为执行关于燃料蒸汽泄漏的高度准确的泄漏诊断。在发动机停止后，燃料蒸汽的温度暂时上升，然后减小，直到达到外部环境温度。在此期间，当清除管路压力略高于大气压力时，清除管路被关闭，并且检测净化管路压力降低率。然后将检测到的净化管线压力降低率与阈值进行比较。如果净化管线压力降低率等于或大于阈值，则净化系统被诊断为“正常”，并且如果净化管线压力降低率小于阈值，则清洗系统被“泄漏”。

2. 发明授权

US07366604B2 Fuel vapor treatment system with leak diagnosing 有权
标题翻译：具有泄漏诊断功能的燃油蒸气处理系统
公开(公告)号：US07366604B2
公开(公告)日：2008-04-29
申请号：US11261474
申请日：2005-10-31
申请人： Hiroya Ishii , Takeshi Tsuyuki , Takane Hayashi
发明人： Hiroya Ishii , Takeshi Tsuyuki , Takane Hayashi
IPC分类号： F02M33/02 , F02N25/08
CPC分类号： F02M25/0827
摘要： A fuel vapor purge system is configured to execute a highly accurate leak diagnosis with respect to a fuel vapor leak. After the engine is stopped, the temperature of the fuel vapor rises temporarily and then decreases until it reaches the outside ambient temperature. During this period, the purge line is closed off and a minimum value reached by the purge line pressure is detected. The difference between the minimum value of the purge line pressure and the atmospheric pressure is compared to a threshold value. The purge system is diagnosed as “normal” if the difference is equal to or larger than the threshold value and a “leaking” if the difference is less than the threshold value.
摘要翻译：燃料蒸汽吹扫系统被配置为执行关于燃料蒸汽泄漏的高度准确的泄漏诊断。在发动机停止后，燃料蒸汽的温度暂时上升，然后减小，直到达到外部环境温度。在此期间，清除管线被关闭，并且检测到清除管线压力达到的最小值。将净化管路压力的最小值与大气压力之差与阈值进行比较。如果差值等于或大于阈值，则净化系统被诊断为“正常”，如果差小于阈值，则清除系统被“泄漏”。

3. 发明授权

US07383722B2 Fuel vapor treatment system with leak diagnosing 失效
标题翻译：具有泄漏诊断功能的燃油蒸气处理系统
公开(公告)号：US07383722B2
公开(公告)日：2008-06-10
申请号：US11261488
申请日：2005-10-31
申请人： Takeshi Tsuyuki , Takane Hayashi , Hiroya Ishii
发明人： Takeshi Tsuyuki , Takane Hayashi , Hiroya Ishii
IPC分类号： G01M15/00
CPC分类号： F02M25/0818
摘要： A fuel vapor purge system is configured to execute a highly accurate leak diagnosis with respect to a fuel vapor leak. After the engine is stopped, the temperature of the fuel vapor rises temporarily and then decreases until it reaches the outside ambient temperature. During this period, the purge line is closed off and a purge line pressure decreasing rate is detected when the purge line pressure is slightly above atmospheric pressure. The detected purge line pressure decreasing rate is then compared to a threshold value. The purge system is diagnosed as “normal” if the purge line pressure decreasing rate is equal to or larger than the threshold value and as “leaking” if the purge line pressure decreasing rate is less than the threshold value.
摘要翻译：燃料蒸汽吹扫系统被配置为执行关于燃料蒸汽泄漏的高度准确的泄漏诊断。在发动机停止后，燃料蒸汽的温度暂时上升，然后减小，直到达到外部环境温度。在此期间，当清除管路压力略高于大气压力时，清除管路被关闭，并且检测净化管路压力降低率。然后将检测到的净化管线压力降低率与阈值进行比较。如果净化管线压力降低率等于或大于阈值，则净化系统被诊断为“正常”，并且如果净化管线压力降低率小于阈值，则清洗系统被“泄漏”。

4. 发明申请

US20060130568A1 Fuel vapor treatment system with leak diagnosing 有权
标题翻译：具有泄漏诊断功能的燃油蒸气处理系统
公开(公告)号：US20060130568A1
公开(公告)日：2006-06-22
申请号：US11261474
申请日：2005-10-31
申请人： Hiroya Ishii , Takeshi Tsuyuki , Takane Hayashi
发明人： Hiroya Ishii , Takeshi Tsuyuki , Takane Hayashi
IPC分类号： G01M19/00
CPC分类号： F02M25/0827
摘要： A fuel vapor purge system is configured to execute a highly accurate leak diagnosis with respect to a fuel vapor leak. After the engine is stopped, the temperature of the fuel vapor rises temporarily and then decreases until it reaches the outside ambient temperature. During this period, the purge line is closed off and a minimum value reached by the purge line pressure is detected. The difference between the minimum value of the purge line pressure and the atmospheric pressure is compared to a threshold value. The purge system is diagnosed as “normal” if the difference is equal to or larger than the threshold value and a “leaking” if the difference is less than the threshold value.
摘要翻译：燃料蒸汽吹扫系统被配置为执行关于燃料蒸汽泄漏的高度准确的泄漏诊断。在发动机停止后，燃料蒸汽的温度暂时上升，然后减小，直到达到外部环境温度。在此期间，清除管线被关闭，并且检测到清除管线压力达到的最小值。将净化管路压力的最小值与大气压力之差与阈值进行比较。如果差值等于或大于阈值，则净化系统被诊断为“正常”，如果差小于阈值，则清除系统被“泄漏”。

5. 发明授权

US07272488B2 Leak detecting device for fuel vapor treatment unit 有权
标题翻译：用于燃油蒸气处理装置的泄漏检测装置
公开(公告)号：US07272488B2
公开(公告)日：2007-09-18
申请号：US11141396
申请日：2005-06-01
申请人： Takane Hayashi , Takeshi Tsuyuki , Hiroya Ishii
发明人： Takane Hayashi , Takeshi Tsuyuki , Hiroya Ishii
IPC分类号： G06F19/00 , G01M19/00
CPC分类号： F02M25/0827
摘要： Disclosed is a leak detecting device for a fuel vapor treatment unit that purges a vapor gas generated through evaporation of fuel in a fuel tank (2) into an intake system (22) of an engine (21). The leak detecting device includes a valve (5) that can selectively seal the fuel vapor treatment unit; a pressure detecting sensor (8) that detects a pressure in the fuel vapor treatment unit; and a controller (10). The controller (10) is programmed to: issue a command to close the valve (5) with a view to sealing the fuel vapor treatment unit during stoppage of the engine (21); calculate deviation amounts (P−P0) of the detected pressures during stoppage of the engine (21) after the fuel vapor treatment unit has been sealed; integrate absolute values (|P−P0|) of the deviation amounts, and determine, based on an integrated value (s), whether or not there is a leak occurring in the fuel vapor treatment unit.
摘要翻译：公开了一种用于燃料蒸气处理单元的泄漏检测装置，其将通过将燃料箱（2）中的燃料蒸发而产生的蒸汽气体吹扫到发动机（21）的进气系统（22）中。泄漏检测装置包括：阀（5），其能够选择性地密封燃料蒸气处理单元; 压力检测传感器（8），其检测所述燃料蒸气处理单元中的压力; 和控制器（10）。控制器（10）被编程为：发出关闭阀（5）的命令，以在发动机（21）停止期间密封燃料蒸气处理单元; 在所述燃料蒸气处理单元被密封之后，计算在所述发动机（21）停止期间检测到的压力的偏差量（P-P 0 ）; 整合偏差量的绝对值（| P-P <0> 0），并根据积分值确定在燃料蒸气处理单元中是否发生泄漏。

6. 发明申请

US20050262932A1 Leak detecting device for fuel vapor treatment unit 有权
标题翻译：用于燃油蒸气处理装置的泄漏检测装置
公开(公告)号：US20050262932A1
公开(公告)日：2005-12-01
申请号：US11141396
申请日：2005-06-01
申请人： Takane Hayashi , Takeshi Tsuyuki , Hiroya Ishii
发明人： Takane Hayashi , Takeshi Tsuyuki , Hiroya Ishii
IPC分类号： F02M25/08 , G01M19/00
CPC分类号： F02M25/0827
摘要： Disclosed is a leak detecting device for a fuel vapor treatment unit that purges a vapor gas generated through evaporation of fuel in a fuel tank (2) into an intake system (22) of an engine (21). The leak detecting device includes a valve (5) that can selectively seal the fuel vapor treatment unit; a pressure detecting sensor (8) that detects a pressure in the fuel vapor treatment unit; and a controller (10). The controller (10) is programmed to: issue a command to close the valve (5) with a view to sealing the fuel vapor treatment unit during stoppage of the engine (21); calculate deviation amounts (P-P0) of the detected pressures during stoppage of the engine (21) after the fuel vapor treatment unit has been sealed; integrate absolute values (|P-P0|) of the deviation amounts, and determine, based on an integrated value (s), whether or not there is a leak occurring in the fuel vapor treatment unit.
摘要翻译：公开了一种用于燃料蒸气处理单元的泄漏检测装置，其将通过将燃料箱（2）中的燃料蒸发而产生的蒸汽气体吹扫到发动机（21）的进气系统（22）中。泄漏检测装置包括：阀（5），其能够选择性地密封燃料蒸气处理单元; 压力检测传感器（8），其检测所述燃料蒸气处理单元中的压力; 和控制器（10）。控制器（10）被编程为：发出关闭阀（5）的命令，以在发动机（21）停止期间密封燃料蒸气处理单元; 在所述燃料蒸气处理单元被密封之后，计算在所述发动机（21）停止期间检测到的压力的偏差量（P-P 0 ）; 整合偏差量的绝对值（| P-P <0> 0），并根据积分值确定在燃料蒸气处理单元中是否发生泄漏。

7. 发明申请

US20070068227A1 Leak diagnostic apparatus for a vaporized fuel processing system 有权
标题翻译：用于蒸发燃料处理系统的泄漏诊断装置
公开(公告)号：US20070068227A1
公开(公告)日：2007-03-29
申请号：US11528208
申请日：2006-09-27
申请人： Takeshi Tsuyuki , Hiroya Ishii , Kazuhisa Watanabe
发明人： Takeshi Tsuyuki , Hiroya Ishii , Kazuhisa Watanabe
IPC分类号： G01M3/04
CPC分类号： F02M25/0809
摘要： A leak diagnostic apparatus for a vaporized fuel processing system that purges vaporized fuel in a fuel tank of a vehicle is disclosed. The leak diagnostic apparatus comprises a leak diagnostic device, a fuel tank condition detection device and a determining device. The leak diagnostic device carries out a leak diagnosis of the vaporized fuel processing system while the engine is operating. The fuel tank condition detection device detects the conditions in the fuel tank. The determining device determines whether the leak diagnosis should be carried out based on predetermined conditions in the fuel tank.
摘要翻译：公开了一种用于汽车燃料处理系统的泄漏诊断装置，其清除车辆的燃料箱中的汽化燃料。泄漏诊断装置包括泄漏诊断装置，燃料箱状态检测装置和判定装置。泄漏诊断装置在发动机运转时进行汽化燃料处理系统的泄漏诊断。燃料箱状态检测装置检测燃料箱中的状况。确定装置基于燃料箱中的预定条件来确定是否应该进行泄漏诊断。

8. 发明授权

US06886398B2 Monitoring of fuel vapor pressure 有权
标题翻译：监测燃油蒸汽压力
公开(公告)号：US06886398B2
公开(公告)日：2005-05-03
申请号：US10642622
申请日：2003-08-19
申请人： Takeshi Tsuyuki , Takashi Aramaki , Masato Kobayashi , Hiroya Ishii
发明人： Takeshi Tsuyuki , Takashi Aramaki , Masato Kobayashi , Hiroya Ishii
IPC分类号： F02M25/08 , G01M15/00
CPC分类号： F02M25/0818
摘要： Fuel vapor in a fuel tank (1) is purged into an intake passage (8) of an engine (10) through a purge vent (2, 4, 6). The controller (21) determines whether a leak is present in a purge vent from the fuel tank (1) to a purge control valve (11). The determination process comprises a pull-down process in which a pressure in the purge vent is reduced using a negative pressure in the intake passage (8) and a leak-down process of sealing the purge vent at the reduced pressure and monitoring the pressure variation. The controller (21) calculates an error equivalence amount (DVPII), a pressure component corresponding to sloshing in the fuel tank (1) during the leak-down process, and determines the presence of a leak in a highly accurate manner based a corrected pressure (DVP5A) in which the monitored pressure variation is corrected using the error equivalence amount (DVPII) (S22).
摘要翻译：燃料箱（1）中的燃料蒸汽通过排气口（2,4,6）被清除到发动机（10）的进气通道（8）中。控制器（21）确定从燃料箱（1）到净化控制阀（11）的排气口中是否存在泄漏。确定过程包括下拉过程，其中在进气通道（8）中使用负压使排气口中的压力减小，以及在减压下密封排气口的泄漏过程并监测压力变化。控制器（21）计算误差当量（DVPII），在泄漏处理期间对应于燃料箱（1）中的晃动的压力分量，并且基于校正压力高精度地确定泄漏的存在（DVP5A），其中使用误差当量量（DVPII）校正所监视的压力变化（S22）。

9. 发明授权

US07685867B2 Leak diagnostic apparatus for a vaporized fuel processing system 有权
标题翻译：用于蒸发燃料处理系统的泄漏诊断装置
公开(公告)号：US07685867B2
公开(公告)日：2010-03-30
申请号：US11528208
申请日：2006-09-27
申请人： Takeshi Tsuyuki , Hiroya Ishii , Kazuhisa Watanabe
发明人： Takeshi Tsuyuki , Hiroya Ishii , Kazuhisa Watanabe
IPC分类号： G01M3/04
CPC分类号： F02M25/0809
摘要： A leak diagnostic apparatus for a vaporized fuel processing system that purges vaporized fuel in a fuel tank of a vehicle is disclosed. The leak diagnostic apparatus comprises a leak diagnostic device, a fuel tank condition detection device and a determining device. The leak diagnostic device carries out a leak diagnosis of the vaporized fuel processing system while the engine is operating. The fuel tank condition detection device detects the conditions in the fuel tank. The determining device determines whether the leak diagnosis should be carried out based on predetermined conditions in the fuel tank.
摘要翻译：公开了一种用于汽车燃料处理系统的泄漏诊断装置，其清除车辆燃料箱中的汽化燃料。泄漏诊断装置包括泄漏诊断装置，燃料箱状态检测装置和判定装置。泄漏诊断装置在发动机运转时进行汽化燃料处理系统的泄漏诊断。燃料箱状态检测装置检测燃料箱中的状况。确定装置基于燃料箱中的预定条件来确定是否应该进行泄漏诊断。

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