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：US07603990B2

公开(公告)日：2009-10-20

申请号：US12135303

申请日：2008-06-09

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 ,  F02D41/0042 ,  F02D41/0045

摘要： An ECU computes a transit time from a time when the fuel vapor passes the purge valve right after the purge valve is opened until a time when the fuel vapor reaches a vicinity of the fuel injector. Further more, the ECU computes a fuel vapor concentration at the vicinity of the fuel injector after the transit time has elapsed based on a first-order lag curve which is defined by a maximum variation of the fuel vapor concentration and a time constant. Correcting the fuel injection quantity according to the fuel vapor concentration at the vicinity of the injector restricts a disturbance of air-fuel ratio at a time of starting purge process.

摘要翻译： ECU在从清洗阀打开直到燃料蒸气到达燃料喷射器附近的时刻之前计算燃料蒸气经过净化阀时的通行时间。 此外，ECU基于由燃料蒸气浓度的最大变化和时间常数确定的一阶滞后曲线，在经过了通过时间之后，计算燃料喷射器附近的燃料蒸气浓度。 根据喷射器附近的燃料蒸气浓度校正燃料喷射量，限制了在开始吹扫过程时的空燃比干扰。

公开(公告)号：US07246608B2

公开(公告)日：2007-07-24

申请号：US11295729

申请日：2005-12-07

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano ,  Sinsuke Kiyomiya ,  Yuusaku Nishimura

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano ,  Sinsuke Kiyomiya ,  Yuusaku Nishimura

IPC分类号： F02M33/02

CPC分类号： F02D41/0045 ,  F02D41/004 ,  F02D2200/703 ,  F02M25/089

摘要： A fuel vapor processing apparatus includes a canister, a purge passage, a detection passage including an atmosphere passage and a restrictor, a passage changing valve for changing the connection passage of the detection passage between the purge passage and the atmosphere passage, a pump connecting with the detection passage on the opposite side of the passage changing valve across the restrictor, a pressure sensor for detecting a pressure between the restrictor and the pump, and an ECU for computing the concentration of fuel vapor. When the passage changing valve causes the purge passage to connect with the detection passage and the pump reduces pressure in the detection passage to pass the air-fuel mixture through the restrictor, the pressure sensor detects the pressure during a detection period of time that elapses after the air-fuel mixture passes through the restrictor until the air-fuel mixture reaches the pump.

摘要翻译： 一种燃料蒸汽处理装置，包括罐，净化通道，包括大气通道和限流器的检测通道，用于改变在净化通道和大气通道之间的检测通道的连接通道的通道改变阀， 在通过限制器的通道改变阀的相对侧的检测通道，用于检测限制器和泵之间的压力的压力传感器和用于计算燃料蒸气浓度的ECU。 当通道切换阀使清扫通道与检测通道连接时，泵减小检测通道中的压力以使空气 - 燃料混合物通过限流器，压力传感器在经过的检测时段之后检测压力 空气 - 燃料混合物通过限流器直到空气 - 燃料混合物到达泵。

公开(公告)号：US20070062495A1

公开(公告)日：2007-03-22

申请号：US11522523

申请日：2006-09-18

申请人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano ,  Shinsuke Kiyomiya ,  Yuusaku Nishimura

发明人： Masao Kano ,  Shinsuke Takakura ,  Noriyasu Amano ,  Shinsuke Kiyomiya ,  Yuusaku Nishimura

IPC分类号： F02M25/08

CPC分类号： F02M25/0836 ,  F02D41/0045 ,  F02D2200/0406 ,  F02D2200/703 ,  F02D2250/41 ,  F02M25/089

摘要： An evaporative fuel treatment system is disclosed that includes a canister, a detection passage having a reduced area portion, and switching device that switches fluid communication. Also included is a depressurizing device for depressurizing the detection passage coupled to the detection passage on a side of the reduced area portion opposite to the switching device, and a pressure detecting device. Moreover, the system includes an evaporative fuel state calculating device for calculating an evaporative fuel state in the mixture based on a cutoff pressure, an air pressure, and a mixture pressure of a mixture of air and the evaporative fuel. In one embodiment, the cutoff pressure, the air pressure, and the mixture pressure are detected independently and discontinuously. In another embodiment, the cutoff pressure and the air pressure are detected on a continual basis during purge of the evaporative fuel.

摘要翻译： 公开了一种蒸发燃料处理系统，其包括罐，具有减小的面积部分的检测通道和切换流体连通的开关装置。 还包括减压装置，用于对与开关装置相对的减小区域部分的一侧耦合到检测通道的检测通道进行减压，以及压力检测装置。 此外，该系统包括蒸发燃料状态计算装置，用于基于空气和蒸发燃料的混合物的截止压力，空气压力和混合压力来计算混合物中的蒸发燃料状态。 在一个实施例中，独立且不连续地检测截止压力，空气压力和混合压力。 在另一个实施例中，在净化蒸发燃料期间，连续地检测截止压力和空气压力。

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：US07318425B2

公开(公告)日：2008-01-15

申请号：US11398755

申请日：2006-04-06

申请人： Masao Kano ,  Shinsuke Takakura ,  Tomoaki Nakano ,  Noriyasu Amano ,  Shinsuke Kiyomiya ,  Yuusaku Nishimura

发明人： Masao Kano ,  Shinsuke Takakura ,  Tomoaki Nakano ,  Noriyasu Amano ,  Shinsuke Kiyomiya ,  Yuusaku Nishimura

IPC分类号： F02M33/04

CPC分类号： F02M25/089 ,  F02D41/0032 ,  F02D41/0045

摘要： A fuel vapor treatment apparatus includes a first canister, a purge passage, an atmosphere passage, a first detection passage provided with a restrictor, and a passage-changing valve for changing the connection passage of the first detection passage between the purge passage and the atmosphere passage. The apparatus further includes a second canister connecting with the first detection passage on the opposite side of the passage-changing valve across the restrictor. A differential pressure sensor detects a pressure difference between both ends of the restrictor. An ECU computes the concentration of fuel vapor on the basis of the detection result of the differential pressure sensor.

摘要翻译： 燃料蒸气处理装置包括第一罐，净化通道，大气通道，设有限流器的第一检测通道和用于改变净化通道和大气之间的第一检测通道的连接通道的通道切换阀 通道。 该装置还包括在通过限制器的通道切换阀的相反侧与第一检测通道连接的第二罐。 差压传感器检测节流器两端之间的压力差。 ECU根据差压传感器的检测结果计算燃料蒸气的浓度。

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.