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1. 发明授权

US06363313B1 Fuel property detecting system 失效
标题翻译：燃油特性检测系统
公开(公告)号：US06363313B1
公开(公告)日：2002-03-26
申请号：US09545166
申请日：2000-04-06
申请人： Hiroshi Katoh , Shigeaki Kakizaki , Takane Hayashi
发明人： Hiroshi Katoh , Shigeaki Kakizaki , Takane Hayashi
IPC分类号： F02D4114
CPC分类号： F02D41/02 , F02D41/1406 , F02D2200/0402 , G01N33/28
摘要： A fuel property detecting system comprises a control unit coupled to a fuel injector and an air-fuel ratio sensor. The control unit is arranged to sample data of a response wave-form of an exhaust air-fuel ratio in response to an injected fuel quantity at a transient period, to identify a plant model as to fuel in use by controlling a parameter of a previously constructed plant model on the basis of the input and output data so as to decrease a prediction error between the plant model and a norm model, to calculate a cutoff frequency of the identified plant model, and to estimate a fuel property of the fuel in use from the calculated cutoff frequency of the identified plant model and data previous stored in the control unit.
摘要翻译：燃料特性检测系统包括耦合到燃料喷射器和空燃比传感器的控制单元。控制单元被布置成响应于在瞬时期间的喷射燃料量而对排气空燃比的响应波形的数据进行采样，以通过控制先前的参数来识别在使用中的燃料的设备模型根据输入和输出数据构建植物模型，以减少植物模型和规范模型之间的预测误差，以计算所识别的植物模型的截止频率，并估计所使用的燃料的燃料性质从所识别的植物模型的计算的截止频率和先前存储在控制单元中的数据。

2. 发明授权

US06651631B2 Fuel vapor emission control device for an engine 有权
公开(公告)号：US06651631B2
公开(公告)日：2003-11-25
申请号：US10087765
申请日：2002-03-05
申请人： Takane Hayashi , Takeshi Tsuyuki , Shigeaki Kakizaki , Masato Kobayashi
发明人： Takane Hayashi , Takeshi Tsuyuki , Shigeaki Kakizaki , Masato Kobayashi
IPC分类号： F02M3704
CPC分类号： F02M25/08 , F02D41/0032 , F02D41/0042 , F02D41/0045 , F02D41/40 , F02D2041/1433 , Y02T10/44
摘要： Fuel vapor adsorbed by activated carbon 4a in a canister 4 is introduced to an engine 10 by a manifold vacuum in an intake air passage 8, and burnt. The controller 21 estimates the fuel amount desorbed from the canister 4 during purge, using a canister model (physical model) comprising an equation which computes the adsorption amount and an equation which computes the desorption amount from the adsorption amount and purge rate. An injection pulse width output to injectors 15 is corrected to reduce an air-fuel ratio fluctuation due to the supply of this desorbed fuel to the engine 10.

3. 发明授权

US06453887B1 Fuel vapor emission control device for an engine 有权
标题翻译：用于发动机的燃料蒸汽排放控制装置
公开(公告)号：US06453887B1
公开(公告)日：2002-09-24
申请号：US10087762
申请日：2002-03-05
申请人： Takane Hayashi , Takeshi Tsuyuki , Shigeaki Kakizaki , Masato Kobayashi
发明人： Takane Hayashi , Takeshi Tsuyuki , Shigeaki Kakizaki , Masato Kobayashi
IPC分类号： F03M3704
CPC分类号： F02M25/089 , F02D41/0032 , F02D41/0042 , F02D41/0045 , F02D41/40 , Y02T10/44
摘要： A fuel vapor emission control device of an engine 10 includes a canister 4 which adsorbs fuel vapor generated in a fuel tank 1, and a purge valve 11 which opens and closes a pipe 6 connecting the canister 4 and an intake passage 8 of the engine 10. A controller 21 sets a target purge rate according to a difference between a target air-fuel ratio feedback deviation and an actual air-fuel ratio feedback deviation during purge, and drives the purge valve 11 so that the target purge rate is achieved.
摘要翻译：发动机10的燃料蒸汽排放控制装置包括吸收燃料箱1中产生的燃料蒸气的罐4和打开和关闭连接发动机10的罐4和进气通道8的管6的净化阀11 控制器21根据目标空燃比反馈偏差和净化时的实际空燃比反馈偏差之间的差设定目标吹扫率，驱动净化阀11使得实现目标吹扫速度。

4. 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”。

5. 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”。

6. 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”。

7. 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。

8. 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。

9. 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”。

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