公开(公告)号：US20080141983A1

公开(公告)日：2008-06-19

申请号：US12000264

申请日：2007-12-11

申请人： Shinsuke Takakura ,  Masao Kano ,  Noriyasu Amano

发明人： Shinsuke Takakura ,  Masao Kano ,  Noriyasu Amano

IPC分类号： F02M33/02

CPC分类号： F02M25/089

摘要： A fuel vapor treatment system includes a canister containing an adsorbent, a detector detecting a concentration of a fuel vapor, a purge passage for introducing the mixture gas into an engine, and an ECU which controls a purge based on a detected fuel vapor condition quantity and learns a fuel vapor concentration. If a difference between a learned concentration and a detection concentration is not less than a specified value, the ECU performs a purge control based on the learned concentration prior to a purge control based on the detection concentration.

公开(公告)号：US06971375B2

公开(公告)日：2005-12-06

申请号：US11087811

申请日：2005-03-24

申请人： Noriyasu Amano ,  Takanobu Kawano ,  Koichi Inagaki ,  Nobuhiko Koyama ,  Masao Kano ,  Shinsuke Takakura ,  Yoshichika Yamada

发明人： Noriyasu Amano ,  Takanobu Kawano ,  Koichi Inagaki ,  Nobuhiko Koyama ,  Masao Kano ,  Shinsuke Takakura ,  Yoshichika Yamada

IPC分类号： F02D41/02 ,  F02D45/00 ,  F02M25/07 ,  F02M25/08 ,  F02M33/02

CPC分类号： F02M25/089 ,  F02M25/0809 ,  F02M25/0827 ,  F02M25/0872

摘要： A pump generates a gas flow within a measurement passage having an orifice. A differential pressure sensor detects a pressure difference between both ends of the orifice. Switching valves are disposed in the measurement passage to create a first concentration measurement state in which the measurement passage is opened at both ends thereof and the gas flowing through the measurement passage is the atmosphere, and a second concentration measurement state in which the measurement passage is in communication at both ends thereof with a canister and the gas flowing through the measurement passage is a fuel vapor-containing air-fuel mixture provided from the canister. An ECU calculates a fuel vapor concentration by based on a pressure difference detected in the first concentration measurement state and a pressure difference detected in the second concentration measurement state.

摘要翻译： 泵在具有孔口的测量通道内产生气流。 差压传感器检测孔口两端之间的压力差。 切换阀设置在测量通道中以产生第一浓度测量状态，其中测量通道在其两端开口，并且流过测量通道的气体是大气;以及第二浓度测量状态，其中测量通道是 在其两端与罐连通，并且流过测量通道的气体是从罐提供的含燃料蒸气的空气 - 燃料混合物。 ECU根据在第一浓度测量状态下检测的压力差和在第二浓度测量状态下检测的压力差来计算燃料蒸气浓度。

公开(公告)号：US07469686B2

公开(公告)日：2008-12-30

申请号：US11401464

申请日：2006-04-11

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

IPC分类号： F02M33/02 ,  F02M33/04

CPC分类号： F02M25/0809 ,  F02M25/0827

摘要： A leak detecting apparatus includes a canister adsorbing a fuel vapor evaporated in a fuel tank, a measure passage, a pump connected with the canister through the measure passage, and a pressure senor detecting a pressure in the measure passage. The pump depressurizes the measure passage, the canister, and the fuel tank so that a leakage of the fuel vapor is detected. When a blow-by of the fuel vapor is arisen, the pump is stopped to forcibly terminate a depressurization.

摘要翻译： 泄漏检测装置包括吸附在燃料箱中蒸发的燃料蒸气的罐，测量通道，通过测量通道与罐连接的泵以及检测测量通道中的压力的​​压力传感器。 泵对测量通道，罐和燃料箱进行减压，从而检测到燃料蒸气的泄漏。 当出现燃料蒸汽的窜动时，停止泵以强制终止减压。

公开(公告)号：US07383826B2

公开(公告)日：2008-06-10

申请号：US11647326

申请日：2006-12-29

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

IPC分类号： G01M3/04 ,  F02M25/08

CPC分类号： F02M25/08

摘要： A fuel vapor treatment apparatus connects with a fuel tank, which produces fuel vapor to be purged into an intake passage of an internal combustion engine through a purge passage. The fuel vapor treatment apparatus includes a state measuring unit that includes a measurement passage provided separately from the purge passage. When the measurement passage is blocked from the intake passage, the state measuring unit measures a state of fuel vapor by detecting a physical quantity of the fuel vapor in the measurement passage. The physical quantity is correlative to the state of fuel vapor. The fuel vapor treatment apparatus further includes a diagnosis unit for diagnosing a malfunction of at least one of components of the state measuring unit.

摘要翻译： 燃料蒸汽处理装置与燃料箱连接，该燃料箱通过净化通道产生要被吹扫到内燃机的进气通道中的燃料蒸气。 燃料蒸气处理装置包括状态测量单元，该状态测量单元包括与吹扫通道分开设置的测量通道。 当测量通道从进气通道阻挡时，状态测量单元通过检测测量通道中的燃料蒸气的物理量来测量燃料蒸气的状态。 物理量与燃料蒸气的状态相关。 燃料蒸气处理装置还包括用于诊断状态测量单元的至少一个部件的故障的诊断单元。

公开(公告)号：US20070119423A1

公开(公告)日：2007-05-31

申请号：US11603901

申请日：2006-11-24

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

IPC分类号： F02M25/08

CPC分类号： F02M25/089 ,  F02D41/0045 ,  F02D41/062 ,  F02D2200/0612

摘要： An evaporative fuel treatment apparatus is disclosed that includes a fuel tank and a purge passage that fluidly couples the intake path of an internal combustion engine and the fuel tank. The apparatus also includes a purge valve that is installed in the purge passage and controls the quantity of evaporative fuel purged from the fuel tank into the intake path. Furthermore, the apparatus includes an evaporative fuel status measuring device that measures a density-based status of evaporative fuel in the fuel tank. Additionally, the apparatus includes a purge valve controlling device that controls the purge valve based on the density-based status of the evaporative fuel measured by the evaporative fuel status measuring device.

摘要翻译： 公开了一种蒸发燃料处理装置，其包括将内燃机的进气通路和燃料箱流体连接的燃料箱和净化通路。 该设备还包括一个清洗阀，其安装在净化通道中并控制从燃料箱排出到进入通道中的蒸发燃料的量。 此外，该装置包括测量燃料箱中的蒸发燃料的基于密度的状态的蒸发燃料状态测量装置。 另外，该设备包括一个清洗阀控制装置，该清洗阀控制装置基于由蒸发燃料状态测量装置测量的蒸发燃料的基于密度的状态来控制排气阀。

公开(公告)号：US20060225714A1

公开(公告)日：2006-10-12

申请号：US11401464

申请日：2006-04-11

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano

IPC分类号： G01M19/00 ,  F02M25/08

CPC分类号： F02M25/0809 ,  F02M25/0827

摘要： A leak detecting apparatus includes a canister adsorbing a fuel vapor evaporated in a fuel tank, a measure passage, a pump connected with the canister through the measure passage, and a pressure senor detecting a pressure in the measure passage. The pump depressurizes the measure passage, the canister, and the fuel tank so that a leakage of the fuel vapor is detected. When a blow-by of the fuel vapor is arisen, the pump is stopped to forcibly terminate a depressurization.

公开(公告)号：US20070220983A1

公开(公告)日：2007-09-27

申请号：US11653851

申请日：2007-01-17

申请人： Masayoshi Sugino ,  Noriyasu Amano ,  Shinsuke Takakura

发明人： Masayoshi Sugino ,  Noriyasu Amano ,  Shinsuke Takakura

IPC分类号： G01L11/00

CPC分类号： G01L9/0008

摘要： An oscillation-type state measuring apparatus has an oscillation-type sensor, a reference oscillation signal generating circuit for producing reference oscillation signals, a beat signal generating circuit for generating beat signals having a beat frequency by synthesizing the sensor oscillation signals and the reference oscillation signals, a counter for measuring a period of the beat signals, and a physical quantity calculation circuit for calculating a physical quantity from the period of the beat signals and from the period of the reference oscillation signals. The reference oscillation signal generating circuit varies the frequency of the reference oscillation signals, and the physical quantity calculation circuit calculates the physical quantity based on the varied period of the reference oscillation signals.

摘要翻译： 振荡型状态测量装置具有振荡型传感器，用于产生参考振荡信号的参考振荡信号产生电路，通过合成传感器振荡信号和基准振荡信号产生具有拍频的拍频信号的拍子信号发生电路 ，用于测量拍频信号的周期的计数器，以及物理量计算电路，用于根据拍子信号的周期和基准振荡信号的周期来计算物理量。 参考振荡信号发生电路改变参考振荡信号的频率，并且物理量计算电路基于参考振荡信号的变化周期来计算物理量。

公开(公告)号：US07370535B2

公开(公告)日：2008-05-13

申请号：US11653851

申请日：2007-01-17

申请人： Masayoshi Sugino ,  Noriyasu Amano ,  Shinsuke Takakura

发明人： Masayoshi Sugino ,  Noriyasu Amano ,  Shinsuke Takakura

IPC分类号： G01L11/00

CPC分类号： G01L9/0008

摘要： An oscillation-type state measuring apparatus has an oscillation-type sensor, a reference oscillation signal generating circuit for producing reference oscillation signals, a beat signal generating circuit for generating beat signals having a beat frequency by synthesizing the sensor oscillation signals and the reference oscillation signals, a counter for measuring a period of the beat signals, and a physical quantity calculation circuit for calculating a physical quantity from the period of the beat signals and from the period of the reference oscillation signals. The reference oscillation signal generating circuit varies the frequency of the reference oscillation signals, and the physical quantity calculation circuit calculates the physical quantity based on the varied period of the reference oscillation signals.

摘要翻译： 振荡型状态测量装置具有振荡型传感器，用于产生参考振荡信号的参考振荡信号产生电路，通过合成传感器振荡信号和基准振荡信号产生具有拍频的拍频信号的拍子信号发生电路 ，用于测量拍频信号的周期的计数器，以及物理量计算电路，用于根据拍子信号的周期和基准振荡信号的周期来计算物理量。 参考振荡信号发生电路改变参考振荡信号的频率，并且物理量计算电路基于参考振荡信号的变化周期来计算物理量。

公开(公告)号：US20070295313A1

公开(公告)日：2007-12-27

申请号：US11808771

申请日：2007-06-12

申请人： Noriyasu Amano ,  Shinsuke Takakura ,  Masao Kanoh ,  Terutoshi Shiokawa

发明人： Noriyasu Amano ,  Shinsuke Takakura ,  Masao Kanoh ,  Terutoshi Shiokawa

IPC分类号： F02M25/08

CPC分类号： F02M25/089 ,  F02D41/0032 ,  F02D2200/0406 ,  F02M25/0836

摘要： A fuel vapor treatment apparatus includes a first canister purges fuel vapor into an intake passage of an engine through a purge passage, which communicates with a first detection passage having a throttle. A second canister is located on an opposite side of the purge passage with respect to the throttle, and communicates with the first detection passage. A gas flow generating unit generates gas flow by reducing pressure in a second detection passage communicating with the second canister. A pressure detecting unit detects pressure correlated with the throttle and the gas flow generating unit. An exhaust detecting unit detects exhaust of fuel vapor from the second canister to the second detection passage. A purge control unit controls purge of fuel vapor from the purge passage to the intake passage in accordance with detection results of the pressure detecting unit and the exhaust detecting unit.

摘要翻译： 燃料蒸气处理装置包括第一罐，其通过与具有节气门的第一检测通道连通的净化通道将燃料蒸汽吹扫到发动机的进气通道中。 第二罐位于相对于节气门的净化通道的相对侧，并与第一检测通道连通。 气体流产生单元通过与第二罐连通的第二检测通道中的压力减小而产生气流。 压力检测单元检测与节流阀和气体流量生成单元相关的压力。 排气检测单元检测燃料蒸汽从第二罐排出到第二检测通道。 吹扫控制单元根据压力检测单元和排气检测单元的检测结果控制从净化通道到进气通道的燃料蒸气的吹扫。

公开(公告)号：US07484501B2

公开(公告)日：2009-02-03

申请号：US11808771

申请日：2007-06-12

申请人： Noriyasu Amano ,  Shinsuke Takakura ,  Masao Kanoh ,  Terutoshi Shiokawa

发明人： Noriyasu Amano ,  Shinsuke Takakura ,  Masao Kanoh ,  Terutoshi Shiokawa

IPC分类号： F02M33/04

CPC分类号： F02M25/089 ,  F02D41/0032 ,  F02D2200/0406 ,  F02M25/0836

摘要： A fuel vapor treatment apparatus includes a first canister purges fuel vapor into an intake passage of an engine through a purge passage, which communicates with a first detection passage having a throttle. A second canister is located on an opposite side of the purge passage with respect to the throttle, and communicates with the first detection passage. A gas flow generating unit generates gas flow by reducing pressure in a second detection passage communicating with the second canister. A pressure detecting unit detects pressure correlated with the throttle and the gas flow generating unit. An exhaust detecting unit detects exhaust of fuel vapor from the second canister to the second detection passage. A purge control unit controls purge of fuel vapor from the purge passage to the intake passage in accordance with detection results of the pressure detecting unit and the exhaust detecting unit.

摘要翻译： 燃料蒸气处理装置包括第一罐，其通过与具有节气门的第一检测通道连通的净化通道将燃料蒸汽吹扫到发动机的进气通道中。 第二罐位于相对于节气门的净化通道的相对侧，并与第一检测通道连通。 气体流产生单元通过与第二罐连通的第二检测通道中的压力减小而产生气流。 压力检测单元检测与节流阀和气体流量生成单元相关的压力。 排气检测单元检测燃料蒸汽从第二罐排出到第二检测通道。 吹扫控制单元根据压力检测单元和排气检测单元的检测结果控制从净化通道到进气通道的燃料蒸气的吹扫。