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1. 发明授权

US5487270A Air-fuel ratio control system for internal combustion engine 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5487270A
公开(公告)日：1996-01-30
申请号：US085378
申请日：1993-07-02
申请人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
发明人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
IPC分类号： F01N11/00 , F02D41/02 , F02D41/14 , F01N3/20
CPC分类号： F02D41/0295 , F01N11/007 , F02D41/1441 , F02D41/1477 , F01N2550/02 , F01N2900/0422 , F02D2041/1409 , F02D2041/1415 , F02D2041/1418 , F02D2041/1433 , F02D2200/0814 , Y02T10/47
摘要： An air-fuel ratio control system for an internal combustion engine includes two air-fuel ratio sensors, one upstream of a catalytic converter and the other downstream of the catalytic converter. When an output of the downstream air-fuel ratio sensor has been inverted between rich and lean, a target air-fuel ratio is corrected by a skip amount in a direction opposite to that of the inversion. On the other hand, at no inversion, the target air-fuel ratio is corrected by an integral amount in a direction opposite to deviation of the output of the downstream air-fuel ratio sensor. A fuel injection amount is derived based on a differential between the target air-fuel ratio and an output of the upstream air-fuel ratio sensor. An engine operating condition, the output of the downstream air-fuel ratio sensor or a deterioration degree of the catalytic converter may be used to change the skip amount and the integral amount.
摘要翻译：用于内燃机的空燃比控制系统包括两个空燃比传感器，一个在催化转化器的上游，另一个催化转化器的下游。当下游空燃比传感器的输出在富和稀之间反转时，通过与反转方向相反的方向的跳跃量校正目标空燃比。另一方面，在没有反转的情况下，目标空燃比以与下游空燃比传感器的输出的偏差相反的方向校正积分量。基于目标空燃比和上游空燃比传感器的输出之间的差异导出燃料喷射量。可以使用发动机工作状态，下游空燃比传感器的输出或催化转化器的劣化程度来改变跳跃量和积分量。

2. 发明授权

US5353775A Air-fuel ratio control system for internal combustion engine 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5353775A
公开(公告)日：1994-10-11
申请号：US9199
申请日：1993-01-26
申请人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
发明人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
IPC分类号： F02D41/14 , G01K7/00 , G01N27/409 , G01N27/26
CPC分类号： F02D41/1494
摘要： An engine temperature is measured an opening of a door is detected so an electrical conduction is made to a heater for heating a sensor element by setting a target element temperature to a relatively high level if such engine temperature (cooling water temperature Thw) is relatively low or, on the other hand, by setting the target element temperature to a relatively low level if the cooling water temperature is relatively high. Then the element temperature is detected and the heater is turned off when the element temperature has reached the target temperature.
摘要翻译：如果发动机温度（冷却水温度Thw）相对较低，则检测到发动机的温度，使得检测到门的开口，使得通过将目标元件温度设定为相对较高的水平来对用于加热传感器元件的加热器进行导通或者另一方面，如果冷却水温度相对较高，则通过将目标元件温度设定为相对较低的水平。然后，当元件温度达到目标温度时，检测元件温度并关闭加热器。

3. 发明授权

US5491975A Air-fuel ratio control system for internal combustion engine 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5491975A
公开(公告)日：1996-02-20
申请号：US85379
申请日：1993-07-02
申请人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
发明人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
IPC分类号： F02D41/14 , F01N3/28
CPC分类号： F02D41/1441 , F02D41/2454 , F02D41/2474 , F02D41/2477
摘要： In an air-fuel ratio control system for an internal combustion engine, a target air-fuel ratio is set on a side opposite to a direction of deviation of a monitored upstream side air-fuel ratio in such a manner as to counterbalance or offset the deviation of the upstream side air-fuel ratio. The deviation of the upstream side air-fuel ratio may be derived in the form of an mount of a particular component adsorbed in a catalytic converter. A learned value may be used to correct the monitored upstream side air-fuel ratio. Further, a monitored downstream side air-fuel ratio may be used to monitor the setting of the target air-fuel ratio.
摘要翻译：在内燃机的空燃比控制装置中，将目标空燃比设定在与被监测的上游侧空燃比的偏离方向相反的一侧，以抵消或抵消上游侧空燃比的偏差。上游侧空燃比的偏差可以以吸附在催化转化器中的特定成分的载体的形式得到。可以使用学习值来校正所监视的上游侧空燃比。此外，可以使用监视的下游侧空燃比来监视目标空燃比的设定。

4. 发明授权

US5622047A Method and apparatus for detecting saturation gas amount absorbed by catalytic converter 失效
标题翻译：用于检测催化转化器吸收的饱和气体量的方法和装置
公开(公告)号：US5622047A
公开(公告)日：1997-04-22
申请号：US318599
申请日：1994-10-05
申请人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
发明人： Yukihiro Yamashita , Kenji Ikuta , Shigenori Isomura
IPC分类号： F01N11/00 , F02D41/14 , F01N3/20
CPC分类号： F02D41/1441 , F01N11/007 , F02D41/1477 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： In an apparatus for detecting a saturation gas amount absorbed by a catalytic converter disposed in an exhaust system of an engine, an air-to-fuel ratio detecting device is disposed in a region of the engine exhaust system downstream of the catalytic converter for monitoring exhaust gas, which has passed through the catalytic converter, to detect an air-to-fuel ratio of an air-fuel mixture causing the exhaust gas. An air-to-fuel ratio changing device serves to change an air-to-fuel ratio of an air-fuel mixture fed to the engine by a correction quantity in a given direction, and serves to maintain changing the air-to-fuel ratio during a correction time. A change increasing device serves to increase the correction quantity and/or the correction time by the air-to-fuel ratio changing device to execute an air-to-fuel ratio changing process again in cases where the air-to-fuel ratio detected by the air-to-fuel ratio detecting device does not vary even when the air-to-fuel ratio changing device executes changing the air-to-fuel ratio. A saturation gas amount calculating device serves to calculate a saturation gas amount absorbed by the catalytic converter on the basis of the correction quantity and the correction time in cases where the air-to-fuel ratio detected by the air-to-fuel ratio detecting device varies when the air-to-fuel ratio changing device executes changing the air-to-fuel ratio.
摘要翻译：在用于检测由设置在发动机的排气系统中的催化转化器吸收的饱和气体量的装置中，空气 - 燃料比检测装置设置在用于监测排气的催化转化器的下游的发动机排气系统的区域已经通过催化转化器的气体检测引起废气的空气 - 燃料混合物的空燃比。空燃比改变装置用于通过给定方向的校正量来改变供给发动机的空气燃料混合物的空燃比，并且用于维持空燃比的变化在修正时间。变化增加装置用于通过空燃比改变装置增加校正量和/或校正时间，以在由空气 - 燃料比变化装置检测到的空燃比的情况下再次执行空燃比变更处理空燃比检测装置即使当空燃比改变装置执行改变空燃比时也不变化。饱和气体量计算装置用于根据空气 - 燃料比检测装置检测到的空气燃料比，基于校正量和校正时间来计算由催化转化器吸收的饱和气体量当空燃比改变装置执行改变空燃比时，会发生变化。

5. 发明授权

US5385133A Fuel injection system for internal combustion engine 失效
标题翻译：内燃机燃油喷射系统
公开(公告)号：US5385133A
公开(公告)日：1995-01-31
申请号：US166380
申请日：1993-12-14
申请人： Kenji Ikuta , Shigenori Isomura , Toshihiro Suzumura
发明人： Kenji Ikuta , Shigenori Isomura , Toshihiro Suzumura
IPC分类号： F02M69/32 , F02B75/02 , F02M69/00 , F02M69/04 , F02M69/08
CPC分类号： F02M69/08 , F02M69/044 , F02B2075/027
摘要： A fuel injection system for a multi-cylinder internal combustion engine is provided. This fuel injection system includes a plurality of fuel injection valves each arranged to inject fuel into an intake port of each cylinder of the engine, an air passage connected to a portion of an air intake passage leading to the intake ports, a plurality of branch air passages each communicating with a preselected portion around an injection nozzle of each fuel injection valve, an air control valve, connecting between the air passage and the plurality of branch air passages, for selectively introducing a portion of intake air in the air intake passage to the preselected portions around the injection nozzles of the fuel injection valves. The air control valve is arranged to selectively assume first and second valve positions, the first valve position being to establish communications between the air passage and the branch air passages in sequence according to rotation of the engine, the second valve position being to establish communication between the air passage and all the branch air passages to supply the intake air in the air passage uniformly to all the branch air passages when an opening period of time during which one of the fuel injection valves is open partly overlaps with that of another fuel injection valve.
摘要翻译：提供了一种用于多缸内燃机的燃料喷射系统。该燃料喷射系统包括多个燃料喷射阀，每个燃料喷射阀被配置为将燃料喷射到发动机的每个气缸的进气口中，与通向进气口的进气通道的一部分连接的空气通道，多个分支空气每个与每个燃料喷射阀的喷射喷嘴周围的预选部分连通的通道，连接空气通道和多个分支空气通道的空气控制阀，用于选择性地将进气通道中的一部分进气导入到在燃料喷射阀的喷射喷嘴周围的预选部分。空气调节阀被布置成选择性地采取第一和第二阀位置，第一阀位置是根据发动机的旋转依次建立空气通道和分支空气通道之间的通信，第二阀位置是建立在空气通道和所有分支空气通道，其中当一个燃料喷射阀打开的打开时间部分地与另一个燃料喷射阀的一部分重叠时，将空气通道中的进气均匀地供应到所有分支空气通道。

6. 发明授权

US5460148A Assist air control system for internal combustion engine 失效
标题翻译：协助内燃机空调系统
公开(公告)号：US5460148A
公开(公告)日：1995-10-24
申请号：US190932
申请日：1994-02-03
申请人： Toshihiro Suzumura , Hisashi Iida , Keigi Honjoh , Kenji Ikuta , Shigenori Isomura
发明人： Toshihiro Suzumura , Hisashi Iida , Keigi Honjoh , Kenji Ikuta , Shigenori Isomura
IPC分类号： F02D41/22 , F02D7/02 , F02D41/00 , F02M69/00 , F02M69/04 , F02M69/46 , F02B23/00
CPC分类号： F02M69/047 , F02D41/0002 , F02D7/02 , Y02T10/42
摘要： An assist air control system for an internal combustion engine introduces, via an assist air passage bypassing a throttle valve, a portion of intake air flowing in an intake pipe upstream of the throttle valve to an area where fuel is injected from a fuel injection valve, so as to facilitate atomization of the injected fuel. The assist air passage includes a flow control unit for opening and closing the assist air passage. The degree of opening of the assist air passage is limited to a value that is reduced as an engine temperature increases, while increased as an engine load increases. The opening degree of the flow control unit may be controlled electrically, mechanically, or both. In this case, the electrically controlled opening degree value is set smaller than the mechanically controlled opening degree value.
摘要翻译：用于内燃机的辅助空气控制系统经由绕过节流阀的辅助空气通道将在节气门上游的进气管中流动的进气的一部分引入燃料从燃料喷射阀喷射的区域，以便于喷射燃料的雾化。辅助空气通道包括用于打开和关闭辅助空气通道的流量控制单元。辅助空气通道的开度被限制为当发动机温度升高时减小的值，同时随着发动机负荷的增加而增加。流量控制单元的开度可以电气地，机械地或两者地控制。在这种情况下，电控开度值被设定为小于机械控制开度值。

7. 发明授权

US5441032A Fuel injection system for multi-cylinder internal combustion engine 失效
标题翻译：多缸内燃机燃油喷射系统
公开(公告)号：US5441032A
公开(公告)日：1995-08-15
申请号：US161855
申请日：1993-12-06
申请人： Kenji Ikuta , Toshihiro Suzumura , Shigenori Isomura , Keigi Honjoh
发明人： Kenji Ikuta , Toshihiro Suzumura , Shigenori Isomura , Keigi Honjoh
IPC分类号： F02B75/02 , F02D7/02 , F02D41/00 , F02M69/04 , F02M69/08 , F02B3/00
CPC分类号： F02D41/0002 , F02D7/02 , F02M69/044 , F02M69/047 , F02M69/08 , F02B2075/027 , Y02T10/42
摘要： In a fuel injection system for an internal combustion engine, engine cylinders are divided into a plurality of cylinder groups. An air passage is provided for supplying mixing air to areas near injection holes of fuel injection valves so as to facilitate atomization of fuel injected from the respective fuel injection valves. The air passage is opened synchronously with a fuel injection of each fuel injection valve such that the mixing air is selectively distributed to the above-noted areas per cylinder group. The mixing air is distributed for such a cylinder group that includes the engine cylinder being injected with the fuel from the corresponding fuel injection valve. The air passage includes a branch portion for the distribution of the mixing air to the above-noted areas. Capacities of the air passage from the branch portion to the respective fuel injection valves may be set substantially equal to each other so as to further facilitate the atomization of the injected fuel.
摘要翻译：在用于内燃机的燃料喷射系统中，发动机气缸被分成多个气缸组。提供空气通道，用于将混合空气供给到燃料喷射阀的喷射孔附近的区域，以便于从各个燃料喷射阀喷射的燃料的雾化。空气通道与每个燃料喷射阀的燃料喷射同步地打开，使得混合空气选择性地分配到每个气缸组的上述区域。混合空气被分配用于这样的气缸组，其包括发动机气缸从相应的燃料喷射阀注入燃料。空气通道包括用于将混合空气分配到上述区域的分支部分。从分支部分到各个燃料喷射阀的空气通道的容量可以设定为基本相等，以便进一步促进喷射燃料的雾化。

8. 发明授权

US5719778A Heater control apparatus for oxygen sensor 失效
标题翻译：氧传感器加热器控制装置
公开(公告)号：US5719778A
公开(公告)日：1998-02-17
申请号：US500423
申请日：1995-07-10
申请人： Toshihiro Suzumura , Shigenori Isomura , Tomomichi Mizoguchi , Yukihiro Yamashita , Jun Hasegawa
发明人： Toshihiro Suzumura , Shigenori Isomura , Tomomichi Mizoguchi , Yukihiro Yamashita , Jun Hasegawa
IPC分类号： G01N27/41 , F02D41/14 , G01N27/12 , G01N27/406 , G01N27/409 , G05D23/24 , G06F14/00
CPC分类号： G05D23/2401 , G01N27/4067 , G05D23/1928
摘要： In a heater control of an oxygen sensor, a heater control circuit is rendered fully conductive at 100% duty initially to supply full power to a heater until the resistance value of the heater reaches a predetermined initial value corresponding to a predetermined temperature. Then, the duty of the heater control circuit is feedback controlled so that the heater temperature becomes a target value until the internal resistance of the oxygen sensor reaches a target temperature, and further, after the internal resistance of the oxygen sensor S reaches the target temperature, the duty of the heater control circuit is feedback controlled so that the element temperature of the sensor becomes a target value.
摘要翻译：在氧传感器的加热器控制中，加热器控制电路最初完全以100％的负载导通，以向加热器供电，直到加热器的电阻值达到对应于预定温度的预定初始值。然后，反馈控制加热器控制电路的占空比，使得加热器温度成为目标值，直到氧传感器的内阻达到目标温度，此外，在氧传感器S的内阻达到目标温度加热器控制电路的负载被反馈控制，使得传感器的元件温度成为目标值。

9. 发明授权

US06263668B1 Engine exhaust gas control system having NOx catalyst 有权
标题翻译：具有NOx催化剂的发动机排气控制系统
公开(公告)号：US06263668B1
公开(公告)日：2001-07-24
申请号：US09668636
申请日：2000-09-25
申请人： Yukihiro Yamashita , Shigenori Isomura
发明人： Yukihiro Yamashita , Shigenori Isomura
IPC分类号： F01N310
CPC分类号： F01N3/0842 , F01N13/009 , F01N2250/12 , F01N2370/02 , F02D41/027 , F02D41/0275 , F02D41/1402 , F02D41/1456 , F02D41/1463 , F02D41/1475
摘要： In an engine exhaust system, an NOx catalyst for occluding NOx in a state of the lean air-fuel ratio and reducing the occluded NOx in the state of the rich air-fuel ration A CPU sets a target air-fuel ratio of a mixture supplied to an engine to the lean side with respect to the stoichiometric air-fuel ratio for the lean mixture combustion. The CPU sets a rich time for a rich mixture combustion in accordance with the engine operating state and the NOx purification rate in the NOx catalyst. In this moment, the shortest rich time is set within a range in which a desired NOx purification rate by the NOx catalyst is obtained. A three-way catalyst may be arranged upstream of the NOx catalyst. The three-way catalyst carries only a noble metal such as platinum having no oxygen storing capability.
摘要翻译：在发动机排气系统中，在浓空燃比A CPU的状态下，以稀空燃比的状态吸入NOx的NO x催化剂和减少吸入的NOx，设定供给的混合物的目标空燃比相对于贫混合物燃烧的化学计量空燃比，发动机到稀薄侧。根据发动机运转状态和NOx催化剂的NOx净化率，CPU为丰富的混合燃烧设定了丰富的时间。此时，将最短的富集时间设定在得到NOx催化剂的期望的NOx净化率的范围内。可以在NOx催化剂的上游设置三元催化剂。三元催化剂仅携带不具有氧气存储能力的铂等贵金属。

10. 发明授权

US6148612A Engine exhaust gas control system having NOx catalyst 有权
标题翻译：具有NOx催化剂的发动机排气控制系统
公开(公告)号：US6148612A
公开(公告)日：2000-11-21
申请号：US166937
申请日：1998-10-06
申请人： Yukihiro Yamashita , Shigenori Isomura
发明人： Yukihiro Yamashita , Shigenori Isomura
IPC分类号： F01N3/08 , F01N13/02 , F02D41/02 , F02D41/14 , F01N3/00 , F01N7/00
CPC分类号： F01N3/0842 , F01N13/009 , F02D41/027 , F02D41/0275 , F02D41/1463 , F02D41/1475 , F01N2250/12 , F01N2370/02 , F02D41/1402 , F02D41/1456
摘要： In an engine exhaust system, an NOx catalyst for occluding NOx in a state of the lean air-fuel ratio and reducing the occluded NOx in the state of the rich air-fuel ratio. A CPU sets a target air-fuel ratio of a mixture supplied to an engine to the lean side with respect to the stoichiometric air-fuel ratio for the lean mixture combustion. The CPU sets a rich time for a rich mixture combustion in accordance with the engine operating state and the NOx purification rate in the NOx catalyst. In this moment, the shortest rich time is set within a range in which a desired NOx purification rate by the NOx catalyst is obtained. A three-way catalyst may be arranged upstream of the NOx catalyst. The three-way catalyst carries only a noble metal such as platinum having no oxygen storing capability.
摘要翻译：在发动机排气系统中，在浓空燃比的状态下，在稀空燃比的状态下吸附NOx的NOx催化剂和减少封闭的NOx。 CPU将供给发动机的混合物的目标空燃比设定为相对于稀混合燃烧的理论空燃比。根据发动机运转状态和NOx催化剂的NOx净化率，CPU为丰富的混合燃烧设定了丰富的时间。此时，将最短的富集时间设定在得到NOx催化剂的期望的NOx净化率的范围内。可以在NOx催化剂的上游设置三元催化剂。三元催化剂仅携带不具有氧气存储能力的铂等贵金属。

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