公开(公告)号：US5816230A

公开(公告)日：1998-10-06

申请号：US901721

申请日：1997-07-28

申请人： Naohiro Kurokawa ,  Toru Kitamura ,  Norio Suzuki ,  Yuh Yoshii

发明人： Naohiro Kurokawa ,  Toru Kitamura ,  Norio Suzuki ,  Yuh Yoshii

IPC分类号： F02D45/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34

CPC分类号： F02D41/008 ,  F02D41/1401 ,  F02D41/1456 ,  F02D41/2448 ,  F02D41/2454 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D2200/0402

摘要： An air-fuel ratio control system for an internal combustion engine has a sensor which detects the air-fuel ratio of exhaust gases in an exhaust passage of the engine emitted from a plurality of cylinders. An air-fuel ratio of a mixture supplied to each of a plurality of cylinders is estimated, based on the detected air-fuel ratio and a model representative of a behavior of the exhaust passage. A cylinder-by-cylinder air-fuel ratio control amount is calculated for use in controlling the air-fuel ratio of the mixture supplied to the each of the cylinders in a feedback manner responsive to the estimated air-fuel ratio of the mixture such that the estimated air-fuel ratio of the mixture supplied to the each of the cylinders is converged to a desired air-fuel ratio. A learned value of the cylinder-by-cylinder air-fuel ratio control amount is calculated. When the difference between the detected air-fuel ratio and the estimated air-fuel ratio of the mixture supplied to the each of the cylinder is larger than a predetermined value, the calculation of the learned value of the cylinder-by-cylinder air-fuel ratio control amount is inhibited.

摘要翻译： 用于内燃机的空燃比控制系统具有检测从多个气缸发射的发动机的排气通道中的排气的空燃比的传感器。 基于检测到的空燃比和表示排气通路的行为的模型，推定供给到多个气缸中的每一个的混合气体的空燃比。 计算出逐个缸缸空燃比控制量，用于响应于混合物的估计空燃比控制供应到每个气缸的混合物的空燃比，使得 供给到每个气缸的混合物的估计空燃比被收敛到期望的空燃比。 计算出逐个缸缸空燃比控制量的学习值。 当检测到的空燃比与供给到每个气缸的混合气体的估计空燃比之间的差大于预定值时，计算气缸缸空气燃料的学习值 比例控制量被抑制。

公开(公告)号：US06347617B1

公开(公告)日：2002-02-19

申请号：US09605358

申请日：2000-06-29

申请人： Toru Kitamura ,  Norio Suzuki ,  Naohiro Kurokawa ,  Tetsuya Ishiguro ,  Takeshi Suzuki ,  Toshiaki Ichitani

发明人： Toru Kitamura ,  Norio Suzuki ,  Naohiro Kurokawa ,  Tetsuya Ishiguro ,  Takeshi Suzuki ,  Toshiaki Ichitani

IPC分类号： F02M3302

CPC分类号： F02D41/0032 ,  F02D2200/0606 ,  F02M25/08

摘要： Disclosed herein is an evaporative emission control system which can prevent changes in fuel component in the fuel tank and vacuum boiling in the fuel pump to thereby accurately control the air-fuel ratio to a desired value and ensure smooth supply of the fuel. The control system includes an evaporative fuel passage for connecting a fuel tank and an intake system of an internal combustion engine, and a control valve is provided in the evaporative fuel passage for opening and closing the evaporative fuel passage. It is determined whether or not a fuel temperature is higher than or equal to a predetermined fuel temperature. If the fuel temperature is higher than or equal to the predetermined fuel temperature, the opening operation of the control valve is disabled.

摘要翻译： 这里公开了一种蒸发排放控制系统，其能够防止燃料箱中的燃料成分的变化和燃料泵中的真空沸腾，从而将空燃比精确地控制为期望值，并确保燃料的平稳供给。 控制系统包括用于连接燃料箱和内燃机的进气系统的蒸发燃料通道，并且在蒸发燃料通道中设置有用于打开和关闭蒸发燃料通道的控制阀。 确定燃料温度是否高于或等于预定燃料温度。 如果燃料温度高于或等于预定燃料温度，则控制阀的打开操作被禁用。

公开(公告)号：US06330879B1

公开(公告)日：2001-12-18

申请号：US09604403

申请日：2000-06-27

申请人： Toru Kitamura ,  Norio Suzuki ,  Naohiro Kurokawa ,  Tetsuya Ishiguro

发明人： Toru Kitamura ,  Norio Suzuki ,  Naohiro Kurokawa ,  Tetsuya Ishiguro

IPC分类号： F02M3302

CPC分类号： F02M25/08 ,  F02D41/004 ,  F02D2200/0406

摘要： Disclosed herein is an evaporative emission control system which can prevent changes in fuel component in the fuel tank and vacuum boiling in the fuel pump to thereby accurately control the air-fuel ratio to a desired value and ensure smooth supply of the fuel. The control system includes an evaporative fuel passage for connecting a fuel tank and an intake system of an internal combustion engine, and a control valve is provided in the evaporative fuel passage for opening and closing the evaporative fuel passage. It is determined whether or not a pressure in the tank is higher than or equal to a pressure value obtained by adding a pressure in the intake system. If the pressure in the tank is higher than or equal to the pressure value, the opening operation of the control valve is enabled.

摘要翻译： 这里公开了一种蒸发排放控制系统，其能够防止燃料箱中的燃料成分的变化和燃料泵中的真空沸腾，从而将空燃比精确地控制为期望值，并确保燃料的平稳供给。 控制系统包括用于连接燃料箱和内燃机的进气系统的蒸发燃料通道，并且在蒸发燃料通道中设置有用于打开和关闭蒸发燃料通道的控制阀。 确定罐中的压力是否高于或等于通过在进气系统中增加压力而获得的压力值。 如果罐中的压力高于或等于压力值，则控制阀的打开操作成为可能。

公开(公告)号：US06305362B1

公开(公告)日：2001-10-23

申请号：US09605059

申请日：2000-06-28

申请人： Toru Kitamura ,  Norio Suzuki ,  Naohiro Kurokawa ,  Tetsuya Ishiguro

发明人： Toru Kitamura ,  Norio Suzuki ,  Naohiro Kurokawa ,  Tetsuya Ishiguro

IPC分类号： F02M3704

CPC分类号： F02M25/08 ,  F02D41/0032

摘要： Disclosed herein is an evaporative emission control system which can properly control the ratio between a tank purge amount and a canister purge amount to realize quick pressure reduction in a fuel tank and ensuring the storage capacity of a canister in a well balanced fashion. A target pressure in controlling the pressure in the fuel tank at a negative pressure and a detected pressure in the fuel tank are compared with each other. When the difference between the target pressure and the detected pressure is large, tank purge is preferentially carried out to open a tank pressure control valve. When the detected pressure is in the vicinity of the target pressure, canister purge is preferentially carried out to purge the evaporative fuel stored in the canister.

摘要翻译： 本文公开了一种蒸发排放控制系统，其可以适当地控制罐吹扫量和罐吹扫量之间的比率，以实现燃料箱中的快速减压，并以良好平衡的方式确保罐的储存能力。 将燃料箱中的压力控制在负压下的目标压力和燃料箱中的检测压力进行比较。 当目标压力和检测到的压力之间的差异大时，优先进行罐吹扫以打开罐压力控制阀。 当检测到的压力在目标压力附近时，优先进行罐吹扫以清除储存在罐中的蒸发燃料。

公开(公告)号：US06223121B1

公开(公告)日：2001-04-24

申请号：US09245022

申请日：1999-02-05

申请人： Akira Ishida ,  Masuo Takigawa ,  Toru Kitamura ,  Akira Kato ,  Naohiro Kurokawa

发明人： Akira Ishida ,  Masuo Takigawa ,  Toru Kitamura ,  Akira Kato ,  Naohiro Kurokawa

IPC分类号： F02D4500

CPC分类号： F02D41/1405 ,  F02D2041/1415 ,  F02D2041/1433

摘要： A control device for controlling an air-to-fuel ratio when fuel is injected in an internal combustion engine, comprises: a state detecting unit for detecting parameters representing operating states of the internal combustion engine; a counting unit for counting the number of times of explosion in a cylinder just after the engine starts; and a unit for estimating an air-to-fuel ratio just after the engine starts from the operating state parameters and the number of times of explosion.

摘要翻译： 一种用于在内燃机中喷射燃料时控制空燃比的控制装置，包括：状态检测单元，用于检测表示内燃机运行状态的参数; 计数单元，用于计算发动机起动之后的气缸中的爆炸次数; 以及用于从运行状态参数和爆炸次数估计发动机起动后的空燃比的单元。

公开(公告)号：US5947096A

公开(公告)日：1999-09-07

申请号：US937747

申请日：1997-09-25

申请人： Naohiro Kurokawa ,  Toru Kitamura ,  Akira Kato

发明人： Naohiro Kurokawa ,  Toru Kitamura ,  Akira Kato

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/22 ,  F02D41/34 ,  F02D41/36

CPC分类号： F02D41/008 ,  F02D41/1401 ,  F02D41/1456 ,  F02D41/1458 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433

摘要： An air-fuel ratio control system for an internal combustion engine includes an air-fuel ratio sensor for detecting the air-fuel ratio of exhaust gases from the engine. An ECU estimates the air-fuel ratio of a mixture supplied to each of the cylinders cylinder by cylinder in response to an output from the air-fuel ratio sensor, by using an observer based on a model representative of the behavior of the exhaust system. Cylinder-by-cylinder air-fuel ratio control amounts corresponding respectively to the cylinders are calculated for carrying out feedback control of the air-fuel ratio of the mixture such that each of the estimated air-fuel ratio is converged to a desired value. One of the cylinder-by-cylinder air-fuel ratio control amounts corresponding to one of the cylinders is held at a predetermined value, and it is determined whether relationships in value between ones of the cylinder-by-cylinder air-fuel ratio control amounts corresponding respectively to cylinders other than the one cylinder and a plurality of predetermined determination values meet a predetermined determination pattern. When the relationships meet the predetermined determination pattern, it is determined that the response speed of the air-fuel ratio sensor has changed.

摘要翻译： 用于内燃机的空燃比控制系统包括用于检测来自发动机的废气的空燃比的空燃比传感器。 ECU基于来自空燃比传感器的输出，通过使用基于表示排气系统的行为的模型的观察者来估计供给到每个汽缸的气缸的气体的空燃比。 计算分别对应于气缸的圆柱体空燃比控制量，以进行混合物的空燃比的反馈控制，使得每个估计空燃比收敛到期望值。 将与其中一个气缸相对应的逐个缸体空燃比控制量中的一个保持在预定值，并且确定是否在每个缸缸空燃比控制量之间的值之间的关系 分别对应于一个气缸以外的气缸，并且多个预定的确定值满足预定的确定模式。 当这些关系满足预定的确定模式时，确定空燃比传感器的响应速度已经改变。

公开(公告)号：US06513321B2

公开(公告)日：2003-02-04

申请号：US09733911

申请日：2000-12-12

申请人： Norio Suzuki ,  Toru Kitamura

发明人： Norio Suzuki ,  Toru Kitamura

IPC分类号： F01N300

CPC分类号： F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F02D41/1441 ,  F02D41/1456 ,  Y02T10/22

摘要： In an exhaust gas purifying apparatus of the present invention, oxygen sensors 18 and 20 are respectively located upstream, a close coupled three-way catalyst 14 positioned at the upstream end of an exhaust system, and downstream, in a under floor three-way catalyst 17 positioned at the downstream end. When an output VO2 of the oxygen sensor 20 exceeds a predetermined voltage VO2H2, the first correction coefficient KCMDLS is calculated in accordance with the output VO2 (S12 and S13). And when VO2≦VO2H2 is established, in accordance with the engine operating state the second correction coefficient KVMDR is set to a predetermined value KVMDR0 that is slightly greater than 1.0 (S16 to S18), and the target air-fuel ratio coefficient KCMD is corrected by using the correction coefficients KCMDLS and KCMDR (S21).

摘要翻译： 在本发明的排气净化装置中，氧传感器18,20分别位于上游，位于排气系统的上游侧的紧密耦合的三元催化剂14和下层的三层催化剂 17位于下游端。 当氧传感器20的输出VO2超过预定电压VO2H2时，根据输出VO2计算第一校正系数KCMDLS（S12和S13）。 并且当VO2 <= VO2H2建立时，根据发动机运转状态，将第二校正系数KVMDR设定为略大于1.0的规定值KVMDR0（S16〜S18），目标空燃比系数KCMD为 通过使用校正系数KCMDLS和KCMDR进行校正（S21）。

公开(公告)号：US06405527B2

公开(公告)日：2002-06-18

申请号：US09772078

申请日：2001-01-30

申请人： Norio Suzuki ,  Toru Kitamura

发明人： Norio Suzuki ,  Toru Kitamura

IPC分类号： F01N300

CPC分类号： F02D41/0295 ,  F02D41/123 ,  F02D2200/0814

摘要： There is provided a fuel supply control system for an internal combustion engine, which is capable of controlling fuel cutoff according to an amount of oxygen stored in a catalytic converter to thereby enhance the purification rate of the catalytic converter while maintaining excellent fuel economy, thereby making it possible to improve exhaust emission characteristics. An amount of oxygen stored in the catalytic converter 13 arranged in an exhaust pipe 12 of an engine 3 is estimated (steps S1 to S29). A deceleration condition of the engine is detected (steps S35, S36). When the deceleration condition is detected, supply of fuel to the engine is cut off (step S41). The cutoff of fuel supply is controlled based on the oxygen storage amount OSC (steps S31, S32, S40, S41).

摘要翻译： 提供了一种用于内燃机的燃料供应控制系统，其能够根据存储在催化转化器中的氧气的量来控制燃料切断，从而提高催化转化器的净化率，同时保持优异的燃料经济性，从而使 可以改善废气排放特性。 估计排放在发动机3的排气管12内的催化转化器13中储存的氧量（步骤S1〜S29）。 检测发动机的减速状态（步骤S35，S36）。 当检测到减速条件时，向发动机供给燃料被切断（步骤S41）。 基于氧气储存量OSC来控制燃料供给的切断（步骤S31，S32，S40，S41）。

公开(公告)号：US07725244B2

公开(公告)日：2010-05-25

申请号：US12005738

申请日：2007-12-28

申请人： Chiho Itoga ,  Ken Ogawa ,  Toru Kitamura ,  Toshinari Shinohara

发明人： Chiho Itoga ,  Ken Ogawa ,  Toru Kitamura ,  Toshinari Shinohara

IPC分类号： G05D1/00

CPC分类号： F02D41/3023 ,  F02D41/0057 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/221 ,  F02D41/3041 ,  F02D41/3047 ,  F02D2041/3052 ,  Y02T10/47

摘要： A control apparatus and method for an internal combustion engine are provided for ensuring a stable combustion state and improving the fuel efficiency when an air-fuel mixture is burnt with self ignition while auxiliarily using a spark ignition. The control apparatus for an internal combustion engine which is operated in a plurality of modes including a torch self ignition combustion mode comprises an ECU. In the torch self ignition combustion mode, the ECU controls an internal EGR amount, calculates an actual exhaust closing angle, calculates a target exhaust closing angle, calculates a closing angle deviation, calculates a fuel injection amount for forming a homogeneous air-fuel mixture, calculates a correction coefficient in accordance with the closing angle deviation, and corrects a basic value by the correction coefficient to calculate a fuel injection amount for forming a stratified air-fuel mixture.

摘要翻译： 提供一种用于内燃机的控制装置和方法，用于确保稳定的燃烧状态，并且在辅助使用火花点火时空燃混合物自燃时燃烧效率提高。 用于包括割炬自点燃燃烧模式的多种模式的内燃机的控制装置包括ECU。 在火炬自点燃燃烧模式中，ECU控制内部EGR量，计算实际排气关闭角度，计算目标排气关闭角度，计算闭合角度偏差，计算用于形成均匀空气 - 燃料混合物的燃料喷射量， 根据闭合角度偏差计算校正系数，并通过校正系数校正基本值，以计算用于形成分层空气 - 燃料混合物的燃料喷射量。

公开(公告)号：US07637156B2

公开(公告)日：2009-12-29

申请号：US11571974

申请日：2005-07-12

申请人： Ryuta Araki ,  Osamu Torayashiki ,  Toru Kitamura ,  Hiroshi Kawasaki ,  Tsuyoshi Takemoto ,  Koji Nakamura ,  Christopher P. Fell ,  Kevin Townsend ,  Ian Sturland

发明人： Ryuta Araki ,  Osamu Torayashiki ,  Toru Kitamura ,  Hiroshi Kawasaki ,  Tsuyoshi Takemoto ,  Koji Nakamura ,  Christopher P. Fell ,  Kevin Townsend ,  Ian Sturland

IPC分类号： G01P9/04

CPC分类号： G01C19/5684

摘要： A vibrator 10, which is formed in a silicon wafer 1 by means of MEMS technique, has eight beam portions (beams) 12 supported at a central portion 11 and extending in the radial direction while mutually keeping the same angle and has a ring portion 13 connected to the eight beam portions 12. Outside the ring portion 13, eight electrodes 21a to 21h for electrostatic actuation, capacitance detection, or the like are spaced uniformly with a gap 22 created between the ring portion 13 and the electrodes 21a to 21h. Inside the ring portion 13, sixteen electrodes 23 for frequency adjustment are spaced uniformly with a gap 24 created between the ring portion 13 and the electrodes 23.

摘要翻译： 通过MEMS技术形成在硅晶片1中的振动器10具有支撑在中心部分11处并在径向方向上延伸并且相互保持相同角度的八个梁部分（梁）12，并且具有环形部分13 连接到八个光束部分12.在环部分13的外部，用于静电致动，电容检测等的八个电极21a至21h与在环部分13和电极21a至21h之间产生的间隙22均匀地间隔开。 在环部13内部，用于频率调节的十六个电极23与在环部13和电极23之间形成的间隙24均匀地间隔开。