公开(公告)号：US06240908B1

公开(公告)日：2001-06-05

申请号：US09333426

申请日：1999-06-15

申请人： Yoshihiko Hyodo ,  Hidekazu Sasaki ,  Takuya Matsuoka ,  Naoya Takagi

发明人： Yoshihiko Hyodo ,  Hidekazu Sasaki ,  Takuya Matsuoka ,  Naoya Takagi

IPC分类号： F02M3704

CPC分类号： F02M25/0809

摘要： A diagnostic apparatus for a fuel storage device has a gas introducing passage for introducing gas from a fuel storage device into an intake passage of an internal combustion engine and a shutoff valve that shuts the gas introducing passage. The diagnostic apparatus detects an amount of fuel component introduced into the intake passage via the gas introducing passage when the shutoff valve is in at least one of an open state and a closed state on the basis of the detected amount of fuel component and, upon detecting the presence of the fuel component in the introduced gas, the apparatus diagnoses that the fuel storage device has a fault.

摘要翻译： 燃料储存装置的诊断装置具有用于将燃料从燃料存储装置引入内燃机的进气通路的气体导入通路和关闭气体导入通路的切断阀。 诊断装置根据检测到的燃料成分量，检测在截止阀处于打开状态和关闭状态中的至少一个时经由气体导入通路导入的进气通路的燃料成分的量， 燃料成分在引入气体中的存在，该装置诊断燃油存储装置有故障。

公开(公告)号：US6145306A

公开(公告)日：2000-11-14

申请号：US229177

申请日：1999-01-13

申请人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo

发明人： Naoya Takagi ,  Toshimi Murai ,  Yoshihiko Hyodo

IPC分类号： F01N3/08 ,  F01N3/24 ,  F01N13/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/34 ,  F02D43/00 ,  F02M25/08 ,  F01N3/00

CPC分类号： F02M25/08 ,  F01N13/009 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F02D41/0035 ,  F02D41/0275

摘要： An exhaust gas purifying apparatus of a lean-burn internal combustion engine surely purifies nitrogen oxide occluded by a nitrogen oxide occluding/reducing catalyst without making a combustion of an air-fuel mixture unstable while utilizing a vapor fuel generated in a fuel tank. The exhaust gas purifying apparatus includes a gas state judging unit for judging a state of a vapor fuel gas supplied to an intake system of the lean-burn internal combustion engine, and an exhaust state control unit for setting, to a desired state, a state of the exhaust gas flowing to the nitrogen oxide occluding/reducing catalyst by selectively controlling the fuel injection valve and the gas supply unit in accordance with a state of the vapor fuel gas at the time when the nitrogen oxide occluded by the nitrogen oxide occluding/reducing catalyst provided in an exhaust system of the lean-burn internal combustion engine should be desorbed and purified.

摘要翻译： 稀燃内燃机的废气净化装置可确实地净化由氮氧化物封闭/还原催化剂吸留的氮氧化物，而不会使空气燃料混合物的燃烧不利于在燃料箱中产生的蒸汽燃料。 排气净化装置具备：气体状态判定部，判断供给到稀燃用内燃机的进气系统的蒸气燃料气体的状态;排气状态控制部，将期望状态设定为状态 的废气通过根据氮氧化物被氮氧化物封闭/还原的氮氧化物时的蒸汽燃料气体的状态选择性地控制燃料喷射阀和气体供给单元而流向氮氧化物闭塞/还原催化剂 提供在稀燃内燃机的排气系统中的催化剂应被解吸和净化。

公开(公告)号：US6102003A

公开(公告)日：2000-08-15

申请号：US273515

申请日：1999-03-22

申请人： Yoshihiko Hyodo ,  Naoya Takagi ,  Toshimi Murai

发明人： Yoshihiko Hyodo ,  Naoya Takagi ,  Toshimi Murai

IPC分类号： F02M25/08 ,  F02D21/08 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/30 ,  F02M7/00

CPC分类号： F02D41/3023 ,  F02D41/0045 ,  F02D41/1475 ,  F02D41/1497 ,  F02D41/0032 ,  F02M25/08

摘要： A fuel vapor concentration detecting apparatus in a lean-burn internal combustion engine detects a fuel vapor concentration and executes purge control. The apparatus includes an output fluctuation detecting module for detecting, on such an occasion that the fuel vapor is purged into an intake system of the internal combustion engine, an output fluctuation just when the fuel vapor is purged, and a concentration detecting module for calculating the fuel vapor concentration in accordance with a magnitude of the output fluctuation detected by the output fluctuation detecting module. The fuel vapor concentration in the lean-burn internal combustion engine is thus detected. A purge quantity or a state of the fuel injection is changed corresponding to the detected concentration of the fuel vapor.

摘要翻译： 稀燃内燃机中的燃料蒸气浓度检测装置检测燃料蒸气浓度并执行清洗控制。 该装置包括：输出波动检测模块，用于在燃料蒸气被清除到内燃机的进气系统中的情况下检测刚刚在清除燃料蒸气时的输出波动;以及浓度检测模块，用于计算 燃料蒸汽浓度根据由输出波动检测模块检测的输出波动的大小。 因此，能够检测稀燃内燃机的燃料蒸气浓度。 喷射量或燃料喷射状态根据检测到的燃料蒸气浓度而变化。

公开(公告)号：US06257209B1

公开(公告)日：2001-07-10

申请号：US09261169

申请日：1999-03-03

申请人： Yoshihiko Hyodo ,  Naoya Takagi ,  Motoki Ohtani

发明人： Yoshihiko Hyodo ,  Naoya Takagi ,  Motoki Ohtani

IPC分类号： F02M3704

CPC分类号： F02D41/0032 ,  F02B2075/125 ,  F02D11/105 ,  F02D37/02 ,  F02D41/0007 ,  F02D41/1441 ,  F02D41/187 ,  F02D2041/2027 ,  F02D2041/389 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2250/31 ,  F02D2250/41 ,  F02M25/08 ,  Y02T10/123 ,  Y02T10/144

摘要： In an internal combustion engine in which a throttle valve is substantially fully opened in most of the operating regions such as an in-cylinder injection type internal combustion engine, a technique is provided capable of effectively processing an evaporative fuel while stabilizing a combustion state of the internal combustion engine even in the case that an amount of evaporative fuel generated in a fuel tank or the like is increased. To achieve this technique, a purge amount of evaporative fuel is increased by increasing a differential pressure between an upstream portion and a downstream portion of a purge passage, and the differential pressure between an upstream portion and a downstream portion of a purge passage, and the differential pressure is adjusted in accordance with the combustion state of the internal combustion engine at that time, thereby making it possible to purge the maximum amount of evaporative fuel within a range in which the combustion state is not unstabilized.

摘要翻译： 在其中节气门在诸如缸内喷射型内燃机的大多数操作区域中基本上完全打开的内燃机中，提供了能够有效地处理蒸发燃料同时稳定燃烧状态的技术 即使在燃料箱等中产生的蒸发燃料的量增加的情况下也可以使用内燃机。 为了实现这种技术，通过增加净化通道的上游部分和下游部分之间的压差以及净化通道的上游部分和下游部分之间的压差来增加蒸发燃料的净化量，并且 根据该时刻的内燃机的燃烧状态来调节差压，从而能够在燃烧状态不稳定的范围内吹扫最大量的蒸发燃料。

公开(公告)号：US5315980A

公开(公告)日：1994-05-31

申请号：US6113

申请日：1993-01-15

申请人： Takayuki Otsuka ,  Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kidokoro

发明人： Takayuki Otsuka ,  Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kidokoro

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

CPC分类号： F02M25/0809

摘要： A malfunction detection apparatus for detecting a malfunction in an evaporative fuel purge system, which malfunction detection apparatus is able to suppress a fluctuation of an air-fuel ratio. A negative pressure inside an intake passage is introduced into the evaporative fuel purge system. The existence/nonexistence of a malfunction in the evaporative fuel purge system is determined by using pressure values inside the evaporative fuel purge system which values are detected and supplied by a pressure detecting unit. The apparatus is provided with an air-fuel ratio fluctuation suppressing unit for suppressing a fluctuation of the air-fuel ratio of air suctioned into an engine when introducing the negative pressure into the evaporative fuel purge system.

摘要翻译： 一种用于检测蒸发燃料净化系统故障的故障检测装置，该故障检测装置能够抑制空燃比的波动。 进气通道内的负压被引入蒸发燃料净化系统。 通过使用蒸发燃料净化系统内的压力值来确定蒸发燃料净化系统中的故障的存在/不存在，该压力值由压力检测单元检测和提供。 该装置设置有空燃比波动抑制单元，用于抑制当将负压引入蒸发燃料净化系统时吸入发动机的空气的空燃比的波动。

公开(公告)号：US5353770A

公开(公告)日：1994-10-11

申请号：US63080

申请日：1993-05-18

申请人： Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kidokoro

发明人： Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kidokoro

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

CPC分类号： F02D41/004 ,  F02M25/08

摘要： An apparatus for controlling a flow of evaporated fuel from a canister being fed into an intake passage of an engine through a plurality of control valves arranged in parallel in a purge passage between the canister and the intake passage. The plurality of control valves includes at least a first valve being switched on and off by setting a control factor indicating a duty ratio of an on-time within a duty cycle to a total duty-cycle time for the first valve, and a second valve being switched on and off by setting a control factor indicating an on-state or off-state of the second valve for a total duty-cycle time. The apparatus includes a first control part for setting a first control factor for the first valve so that the first valve is switched on at a rate indicated by the first control factor, and a second control part for setting a second control factor for the second valve so that the second valve is switched on and off at a timing different from a timing at which the first valve is switched on and off.

摘要翻译： 一种用于控制来自罐的蒸发燃料的流动的装置，其通过平行布置在罐和进气通道之间的清洗通道中的多个控制阀进给到发动机的进气通道中。 多个控制阀包括至少第一阀，其通过将表示占空比内的接通时间的占空比的控制系数设定为第一阀的总占空比时间来接通和关闭，第二阀 通过设置表示第二阀的开启状态或关闭状态的控制因子来执行总占空比时间的接通和关断。 该设备包括：第一控制部分，用于设定第一阀门的第一控制系数，使得第一阀门以第一控制系数指示的速率接通，第二控制部件用于设定第二阀门的第二控制系数 使得第二阀在与第一阀打开和关闭的定时不同的时间点打开和关闭。

公开(公告)号：US5979417A

公开(公告)日：1999-11-09

申请号：US69501

申请日：1998-04-29

申请人： Yoshihiko Hyodo ,  Takaaki Itoh ,  Toru Kidokoro ,  Takashi Ishikawa ,  Masahide Kobayashi

发明人： Yoshihiko Hyodo ,  Takaaki Itoh ,  Toru Kidokoro ,  Takashi Ishikawa ,  Masahide Kobayashi

IPC分类号： B60K15/03 ,  B60K15/035 ,  B60K15/077 ,  F02M25/08 ,  F02M33/00 ,  F02M37/00 ,  F02M37/20

CPC分类号： B60K15/03 ,  B60K15/03519 ,  B60K15/077 ,  B60K2015/03236 ,  B60K2015/03467 ,  Y10T137/86324

摘要： According to the present invention, there is provided a fuel reserving device for reserving fuel therein comprising a wall for dividing an interior of the device to a fuel chamber and an air chamber, the wall being deformable according to the amount of the fuel in the fuel chamber, a discharge passage which is open to a space formed above the surface of the fuel in the fuel chamber and a shut off valve for normally shutting the discharge passage off. Gas is discharged from the space via the discharge passage when the shut off valve is open. The shut off valve is opened and the gas is discharged from the space when the amount of the gas is larger than a predetermined amount. On the other hand, the shut off valve is closed and the discharging operation of the gas is stopped when the amount of the gas is smaller than the predetermined amount.

摘要翻译： 根据本发明，提供了一种用于在其中储存燃料的燃料储存装置，包括用于将装置的内部分成燃料室和空气室的壁，所述壁可根据燃料中的燃料量而变形 在燃料室中的燃料表面上形成的空间开口的排出通道和用于正常关闭排出通道的截止阀。 当截止阀打开时，气体经由排放通道从空间排出。 当气体的量大于预定量时，关闭阀被打开并且气体从空间排出。 另一方面，当气体的量小于预定量时，截止阀关闭，气体的排出操作停止。

公开(公告)号：US5220898A

公开(公告)日：1993-06-22

申请号：US927895

申请日：1992-08-10

申请人： Toru Kidokoro ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Akinori Osanai

发明人： Toru Kidokoro ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Akinori Osanai

IPC分类号： F02M25/08

CPC分类号： F02M25/08

摘要： A pressure control device allows evaporated fuel evaporated in an fuel tank of an engine to be discharged to a canister during the engine running state. The canister absorbs the evaporated fuel. The pressure control device continues to allow evaporated fuel in the fuel tank to be discharged to the canister after the engine stops until a predetermined period has elapsed. The pressure control device allows evaporated fuel in the fuel tank to be discharged to the canister while a pressure in the fuel tank is higher than a first predetermined pressure after the predetermined period has elapsed in the engine stopped state. On the other hand, the pressure control device prevents evaporated fuel in the fuel tank from being discharged to the canister while a pressure in the fuel tank is lower than the first predetermined pressure after the predetermined period has elapsed in the engine stopped state.

摘要翻译： 压力控制装置允许在发动机运行状态期间在发动机的燃料箱中蒸发的蒸发燃料排出到罐。 罐吸收蒸发的燃料。 在发动机停止之后，压力控制装置继续允许燃料箱中的蒸发燃料排放到罐中，直到经过预定时间。 压力控制装置允许燃料箱中的蒸发燃料在发动机停止状态下经过预定时间之后，同时在燃料箱中的压力高于第一预定压力时排出到罐中。 另一方面，在发动机停止状态下经过规定期间后，压力控制装置能够防止燃料箱内的蒸发燃料排出到罐内，同时燃料箱内的压力低于第一规定压力。

公开(公告)号：US5216997A

公开(公告)日：1993-06-08

申请号：US932846

申请日：1992-08-20

申请人： Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kodokoro

发明人： Akinori Osanai ,  Takaaki Itoh ,  Yoshihiko Hyodo ,  Toru Kodokoro

IPC分类号： F02D41/14 ,  F02D41/00 ,  F02D41/02 ,  F02M25/08

CPC分类号： F02M25/08 ,  F02D41/004 ,  F02D41/0045 ,  F02D41/0042

摘要： A fuel supply control device including a purge control valve. The maximum purge rate, that is, the ratio between the amount of purge and the amount of intake air when the purge control valve is fully open, is stored in advance. The purge control valve is controlled in its duty ratio, which duty ratio is the target purge rate/maximum purge rate. When the purge is started, the target duty ratio is gradually increased. When the purge is performed and the feedback correction coefficient FAF falls, the feedback correction coefficient FAF is gradually returned to the FAF before the start of a purge, the purge A/F correction coefficient is increased, and the amount of injection is corrected by the sum of the purge A/F correction coefficient and the feedback correction coefficient.

摘要翻译： 一种燃料供给控制装置，包括净化控制阀。 预先存储最大吹扫速率，即清洗控制阀完全打开时吹扫量与进气量之间的比率。 净化控制阀的占空比被控制，占空比是目标吹扫速率/最大吹扫速率。 当清洗开始时，目标占空比逐渐增加。 当执行吹扫并且反馈校正系数FAF下降时，反馈校正系数FAF在清洗开始之前逐渐返回到FAF，清洗A / F校正系数增加，并且喷射量由 净化A / F校正系数和反馈校正系数之和。

公开(公告)号：US07481101B2

公开(公告)日：2009-01-27

申请号：US11272733

申请日：2005-11-15

申请人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Takuji Matsubara ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： F02M25/08 ,  G01M15/00 ,  G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/089

摘要： A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

摘要翻译： 设置有控制燃料箱10和罐26之间的连通状态的密封阀28。 在内燃机停止期间，密封阀28通常关闭，并且罐26向大气敞开。 当内燃机停止时，密封阀28打开，并且在油箱内部压力和大气压力之间产生超过阀开度判定值的压差。 检测在密封阀28打开之前和之后产生的罐内部压力的变化。 当罐内压力的变化低于预定的确定值时，确定密闭阀的关闭故障。