公开(公告)号：US06615803B2

公开(公告)日：2003-09-09

申请号：US09955161

申请日：2001-09-19

申请人： Kazunori Kojima ,  Junichi Kako

发明人： Kazunori Kojima ,  Junichi Kako

IPC分类号： F02M5100

CPC分类号： F02D41/047

摘要： In a fuel injection control apparatus of an internal combustion engine for controlling a fuel supply quantities by making use of a fuel behavior model obtained by modeling the dynamic behavior of fuel flowing from injector into combustion chamber of cylinder of engine, the fuel behavior model is configured to estimate the dynamic fuel behavior such as attachment onto and detachment from a wall surface, e.g., using separate quantities, a wall surface adhesion quantity Fwv(k) of a low boiling point component and a wall surface adhesion quantity Fwp(k) of a high boiling point component at each time k, and to control an injected fuel quantity Fi(k) so that a fuel quantity Fc(k) of fuel flowing into the cylinder becomes a target value.

摘要翻译： 另外，在内燃机的燃料喷射控制装置中，通过利用通过将从喷射器流入喷射器的燃料的动力学行为模拟到发动机气缸的燃烧室而获得的燃料行为模型来控制燃料供给量，构成燃料行为模型 估计动态燃料行为，例如附着到壁表面上和从墙壁表面脱离，例如使用单独的量，低沸点组分的壁表面粘附量Fwv（k）和壁表面粘附量Fwp（k） 并且控制喷射燃料量Fi（k），使得流入气缸的燃料的燃料量Fc（k）成为目标值。

公开(公告)号：US06799560B2

公开(公告)日：2004-10-05

申请号：US10676157

申请日：2003-10-02

申请人： Kazunori Kojima ,  Junichi Kako ,  Koichi Ueda

发明人： Kazunori Kojima ,  Junichi Kako ,  Koichi Ueda

IPC分类号： F02M2312

CPC分类号： F02D41/0055 ,  B60L1/02 ,  B60L11/14 ,  B60L15/20 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/445 ,  B60L2240/80 ,  B60L2250/26 ,  B60L2260/26 ,  B60L2270/12 ,  F02B31/06 ,  F02D41/042 ,  F02D41/047 ,  F02D41/065 ,  F02M26/13 ,  F02M35/021 ,  F02M69/044 ,  Y02T10/146 ,  Y02T10/47 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275

摘要： A fuel injection amount control apparatus of an internal combustion engine is arranged to start injection of a fuel into an intake passage of the engine when a certain engine start condition is satisfied, and stop the injection of the fuel when a certain engine stop condition is satisfied. The control apparatus estimates an amount of fuel deposited on an intake passage forming member that defines the intake passage, and determines a fuel injection amount based on the estimated fuel deposition amount. The control apparatus also executes a particular process for making an actual fuel deposition amount on the intake passage forming member substantially equal to zero, after the engine stop condition is satisfied and before the injection of the fuel is started under a condition that the engine start condition is satisfied.

摘要翻译： 内燃机的燃料喷射量控制装置被设置成当满足某个发动机启动条件时开始向发动机的进气通道喷射燃料，并且当满足某个发动机停止条件时停止燃料喷射 。 控制装置估计沉积在限定进气通道的进气通道形成构件上的燃料量，并且基于估计的燃料沉积量确定燃料喷射量。 控制装置还执行特定的处理，用于在进气通道形成构件上实质上等于零的实际燃料沉积量，在发动机停止条件满足之后并且在发动机起动条件 满意

公开(公告)号：US06481201B2

公开(公告)日：2002-11-19

申请号：US09880029

申请日：2001-06-14

申请人： Junichi Kako ,  Toshinari Nagai ,  Naohide Fuwa ,  Kazunori Kojima ,  Akihiro Katayama ,  Naoto Kato

发明人： Junichi Kako ,  Toshinari Nagai ,  Naohide Fuwa ,  Kazunori Kojima ,  Akihiro Katayama ,  Naoto Kato

IPC分类号： F01N300

CPC分类号： F01N11/007 ,  F02D41/0295 ,  F02D41/047 ,  F02D41/1441 ,  F02D41/1456 ,  F02D2041/1422 ,  F02D2200/0814 ,  F02D2200/0816 ,  Y02T10/47

摘要： An air-fuel ratio control apparatus of an internal combustion engine according to the present invention is provided with oxygen storage amount estimating means, downstream exhaust air-fuel ratio detecting means, maximum oxygen storage amount estimating means, and air-fuel ratio target setting means. The oxygen storage amount estimating means estimates an oxygen storage amount of an exhaust purifying catalyst, based on a history of an oxygen adsorption/desorption amount of the exhaust purifying catalyst located on an exhaust path. The downstream exhaust air-fuel ratio detecting means is located downstream of the exhaust purifying catalyst and detects an exhaust air-fuel ratio downstream of the exhaust purifying catalyst. The maximum oxygen storage amount estimating means estimates a maximum oxygen storage amount, based on an oxygen storage amount estimate when the exhaust air-fuel ratio detected is a predetermined air-fuel ratio. This permits effective utilization of oxygen occlusion capability of the exhaust purifying catalyst and improvement in exhaust purification performance.

公开(公告)号：US06901744B2

公开(公告)日：2005-06-07

申请号：US10212105

申请日：2002-08-06

申请人： Junichi Kako ,  Toshinari Nagai ,  Naohide Fuwa ,  Kazunori Kojima ,  Akihiro Katayama ,  Naoto Kato

发明人： Junichi Kako ,  Toshinari Nagai ,  Naohide Fuwa ,  Kazunori Kojima ,  Akihiro Katayama ,  Naoto Kato

IPC分类号： F02D45/00 ,  B01D53/86 ,  F01N3/20 ,  F01N3/24 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F01N3/00

CPC分类号： F01N11/007 ,  F02D41/0295 ,  F02D41/047 ,  F02D41/1441 ,  F02D41/1456 ,  F02D2041/1422 ,  F02D2200/0814 ,  F02D2200/0816 ,  Y02T10/47

摘要： An air-fuel ratio control apparatus of an internal combustion engine according to the present invention is provided with oxygen storage amount estimating means, downstream exhaust air-fuel ratio detecting means, maximum oxygen storage amount estimating means, and air-fuel ratio target setting means. The oxygen storage amount estimating means estimates an oxygen storage amount of an exhaust purifying catalyst, based on a history of an oxygen adsorption/desorption amount of the exhaust purifying catalyst located on an exhaust path. The downstream exhaust air-fuel ratio detecting means is located downstream of the exhaust purifying catalyst and detects an exhaust air-fuel ratio downstream of the exhaust purifying catalyst. The maximum oxygen storage amount estimating means estimates a maximum oxygen storage amount, based on an oxygen storage amount estimate when the exhaust air-fuel ratio detected is a predetermined air-fuel ratio. This permits effective utilization of oxygen occlusion capability of the exhaust purifying catalyst and improvement in exhaust purification performance.

摘要翻译： 根据本发明的内燃机的空燃比控制装置设置有储氧量估计装置，下游排气空燃比检测装置，最大氧气存储量估计装置和空燃比目标设定装置 。 氧气存储量估计装置基于位于排气路径上的排气净化催化剂的氧吸附/脱附量的历史来估计排气净化催化剂的氧气存储量。 下游排气空燃比检测装置位于排气净化催化剂的下游，并且检测排气净化催化剂下游的排气空燃比。 最大氧气存储量估计装置基于当检测到的排气空燃比为预定空燃比时的氧气存储量估计值来估计最大氧气存储量。 这样可以有效地利用排气净化催化剂的吸氧能力，提高排气净化性能。

公开(公告)号：US10241483B2

公开(公告)日：2019-03-26

申请号：US14768606

申请日：2014-02-12

申请人： Kota Sata ,  Junichi Kako ,  Satoru Watanabe ,  Yuta Suzuki ,  Masato Edahiro

发明人： Kota Sata ,  Junichi Kako ,  Satoru Watanabe ,  Yuta Suzuki ,  Masato Edahiro

IPC分类号： G05B17/02

摘要： The present invention relates to a control device design method for a control device that determines a manipulation amount of a control object having a dead time by feedback control so as to bring a control amount of the control object closer to a target value. The method according to the present invention includes a step of designing a feedback loop that computes a correction amount for the manipulation amount using a plurality of controllers including a prediction model of the control object, a step of deriving the same number of delay elements as the plurality of controllers from a dead time element of the prediction model, and a step of allocating the plurality of controllers associated with the delay elements to a plurality of arithmetic units so that the computation of the feedback loop is performed by parallel computation by the plurality of arithmetic units that operate in parallel.

公开(公告)号：US10202909B2

公开(公告)日：2019-02-12

申请号：US13202340

申请日：2009-02-20

申请人： Shuntaro Okazaki ,  Junichi Kako

发明人： Shuntaro Okazaki ,  Junichi Kako

IPC分类号： F02D28/00 ,  F01N11/00 ,  F02D41/26 ,  F02D15/04 ,  F02D13/02 ,  F02D41/14

摘要： The control system of an internal combustion engine of the present invention comprises an S/V ratio changing mechanism able to change an S/V ratio of a combustion chamber and a detection device having an output value changing in accordance with a hydrogen concentration in exhaust gas, which increases along with an increase in the S/V ratio, the internal combustion engine being controlled by the output value of the detection device. Further, the output value of the detection device or a parameter relating to operation of the internal combustion engine is corrected in accordance with the S/V ratio of the above S/V ratio changing mechanism. Due to this, even if the hydrogen concentration in the exhaust gas increases along with an increase in the S/V ratio, the internal combustion engine can be suitably controlled.

公开(公告)号：US08406980B2

公开(公告)日：2013-03-26

申请号：US12595767

申请日：2008-04-11

申请人： Norihisa Nakagawa ,  Takahiko Fujiwara ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki

发明人： Norihisa Nakagawa ,  Takahiko Fujiwara ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki

IPC分类号： B60T7/12 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  F01N3/00 ,  F02D41/00

CPC分类号： F02D41/1455 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/2461

摘要： An air-fuel ratio control device includes an air-fuel ratio sensor provided upstream from a three-way catalyst, and an oxygen sensor provided downstream from the three-way catalyst. The air-fuel ratio control device controls the fuel supply amount based on the output from the air-fuel ratio sensor, and compensates for errors in the air-fuel ratio sensor by correcting the fuel supply amount based on the output from the oxygen sensor. The fuel supply correction amount is calculated based on an integral term that integrates the deviation between the output from the downstream air-fuel ratio sensor and the target air-fuel ratio. When a fuel supply adjustment control is executed, the value of the integral term in the sub-feedback control is not updated for a predetermined period after the fuel supply adjustment control ends. The actual air-fuel ratio is thus brought to the target air-fuel ratio in an appropriate manner.

摘要翻译： 空燃比控制装置包括设置在三元催化剂上游的空燃比传感器和设置在三元催化剂下游的氧传感器。 空燃比控制装置基于空燃比传感器的输出来控制燃料供给量，并且通过基于氧传感器的输出校正燃料供给量来补偿空燃比传感器的误差。 基于将来自下游空燃比传感器的输出与目标空燃比的偏差进行积分的积分项来计算燃料供给修正量。 当执行燃料供给调节控制时，在燃料供给调节控制结束之后的预定时间段内，子反馈控制中的积分项的值不被更新。 因此，实际的空燃比以适当的方式达到目标空燃比。

公开(公告)号：US5970707A

公开(公告)日：1999-10-26

申请号：US150266

申请日：1998-09-09

申请人： Hiroshi Sawada ,  Junichi Kako

发明人： Hiroshi Sawada ,  Junichi Kako

IPC分类号： F01N3/08 ,  B01D53/94 ,  F01N3/20 ,  F01N3/24 ,  F01N11/00 ,  F01N13/02 ,  F01N13/04 ,  F02D41/02 ,  F02D41/14 ,  F01N3/00

CPC分类号： B01D53/9454 ,  B01D53/9495 ,  F01N11/007 ,  F01N13/009 ,  F01N13/011 ,  F01N3/0842 ,  F02D41/0275 ,  F02D41/1441 ,  F01N2250/12 ,  F01N2550/02 ,  F01N2550/03 ,  F02D41/1456 ,  Y02T10/22 ,  Y02T10/47

摘要： In an exhaust gas purification device for an internal combustion engine, a three-way catalyst and a NO.sub.X occluding and reducing catalyst (a NORC) are disposed in the exhaust gas passage of an engine in this order from the upstream side. A first air-fuel ratio sensor is disposed in the exhaust gas passage between the three-way catalyst and the NORC, and a second air-fuel ratio sensor is disposed in the exhaust gas passage downstream of the NORC. An engine electronic control unit (ECU) changes the operating air-fuel ratio of the engine from a lean air-fuel ratio to a rich air-fuel ratio and a rich air-fuel ratio to a lean air-fuel ratio in order to evaluate the abilities of the three-way catalyst and the NORC. The ECU evaluates the catalytic abilities based on the output of the first air-fuel ratio sensor when the engine air-fuel ratio is changed. Further, the ECU evaluates the catalytic ability and the NO.sub.X absorbing capacity of the NORC based on the outputs of the first and the second air-fuel ratio sensor when the engine operating air-fuel ratio is changed. The evaluation of the abilities of both the three-way catalyst and the NORC in one successive changing operation of the engine operating air-fuel ratio is based on only the outputs of the first and the second air-fuel ratio sensor.

摘要翻译： 另外，在内燃机的废气净化装置中，从上游侧依次配置有发动机的排气通路中的三元催化剂和NO X吸留还原催化剂（NORC）。 第一空燃比传感器设置在三通催化剂和NORC之间的排气通道中，第二空燃比传感器设置在NORC下游的排气通道中。 发动机电子控制单元（ECU）将发动机的运转空燃比从稀空燃比变为浓空燃比和浓空燃比为了评价 三元催化剂和NORC的能力。 当发动机空燃比改变时，ECU基于第一空燃比传感器的输出来评估催化能力。 此外，当发动机运转空燃比变化时，ECU基于第一和第二空燃比传感器的输出，评价NORC的催化能力和NO x吸收能力。 在发动机工作空燃比的一个连续变化操作中对三元催化剂和NORC两者的能力的评估仅基于第一和第二空燃比传感器的输出。

公开(公告)号：US20100268436A1

公开(公告)日：2010-10-21

申请号：US12670746

申请日：2008-10-01

申请人： Shinichi Soejima ,  Junichi Kako ,  Kaoru Ohtsuka ,  Hiroyuki Tanaka ,  Keisuke Kawai

发明人： Shinichi Soejima ,  Junichi Kako ,  Kaoru Ohtsuka ,  Hiroyuki Tanaka ,  Keisuke Kawai

IPC分类号： G06F19/00 ,  F02P5/15

CPC分类号： F02D41/10 ,  B60W2710/0616 ,  F02D11/105 ,  F02D37/02 ,  F02D41/0085 ,  F02D41/307 ,  F02D2200/602 ,  F02D2200/701 ,  F02D2250/18 ,  F02D2250/22 ,  F02N11/04 ,  F02N2200/046 ,  F02P5/1504 ,  Y02T10/46 ,  Y10T477/677

摘要： This invention is intended to ensure that a control device for a vehicle drive unit is capable of realizing desired torque by making the main-actuator and sub-actuator collaborate adequately while holding the interposition of the sub-actuator as low as possible. For this end, a future target of torque that is going to be output from the engine and a realization timing of the future target are taken as reservation information for reserving engine torque regulation. Next, the required period, which is required to realize the future target when a main-actuator (a throttle) is operated to regulate the torque, is computed from a current engine operating condition. Then, the operation of the main-actuator is started at the timing preceding the realization timing by the required period for realizing the future target. In parallel with that, a sub-actuator (an ignition system) is operated to cancel out a torque change induced by the operation of the main-actuator during the period from the start timing of the operation of the main-actuator to the realization timing.

摘要翻译： 本发明旨在确保用于车辆驱动单元的控制装置能够通过使主致动器和副致动器协调一致地实现期望的扭矩，同时保持副致动器的插入尽可能低。 为此，将要从发动机输出的扭矩的未来目标和未来目标的实现定时作为用于保留发动机转矩调节的预约信息。 接下来，根据当前的发动机工作条件计算当主执行器（节气门）操作以调节转矩时实现未来目标所需的期间。 然后，在实现定时之前的时刻开始主执行器的操作达到实现未来目标的所需时间段。 与此同时，副致动器（点火系统）被操作以抵消在从主致动器的操作的开始定时到实现定时的期间由主致动器的操作引起的转矩变化 。

公开(公告)号：US07474956B2

公开(公告)日：2009-01-06

申请号：US11885266

申请日：2006-09-13

申请人： Norihisa Nakagawa ,  Takahiko Fujiwara ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki

发明人： Norihisa Nakagawa ,  Takahiko Fujiwara ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki

IPC分类号： G06F19/00 ,  F02D41/14 ,  F01N3/10

CPC分类号： F02D41/1441 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/123 ,  F02D41/1454 ,  F02D41/1456 ,  F02D2041/1409 ,  F02D2041/1422 ,  F02D2200/0814

摘要： An air-fuel ratio control system maintaining constant an oxygen storage amount or oxygen release amount per unit time with respect to an exhaust purification catalyst having an oxygen storage capacity even if the intake air amount changes is provided.An air-fuel ratio control system of an internal combustion engine having an intake air amount detecting means, a linear air-fuel ratio sensor arranged at an upstream side of an exhaust purification catalyst, an O2 sensor arranged at a downstream side of said exhaust purification catalyst, a target air-fuel ratio controlling means for performing feedback control of a target air-fuel ratio of exhaust flowing into the exhaust purification catalyst based on output information from the intake air amount detecting means and the O2 sensor, and a fuel injection amount controlling means for performing feedback control of the fuel injection amount based on output information of the linear air-fuel ratio sensor so as to achieve the target air-fuel ratio, characterized in that the target air-fuel ratio controlling means performs feedback control of the target air-fuel ratio so that even when the intake air amount changes, a correction amount per unit time of an oxygen storage amount of the exhaust purification catalyst is made constant.

摘要翻译： 即使提供进气量变化，也能够提供相对于具有储氧能力的排气净化催化剂，每单位时间保持恒定氧气储存量或氧释放量的空燃比控制系统。 一种内燃机的空燃比控制系统，具有进气量检测装置，布置在排气净化催化剂的上游侧的线性空燃比传感器，配置在排气净化装置的下游侧的O2传感器 催化剂，目标空燃比控制装置，用于根据来自进气量检测装置和O2传感器的输出信息，对流入排气净化催化剂的排气的目标空燃比进行反馈控制;燃料喷射量 控制装置，用于基于线性空燃比传感器的输出信息进行燃料喷射量的反馈控制，以实现目标空燃比，其特征在于，所述目标空燃比控制装置执行所述目标空燃比控制装置的反馈控制， 目标空燃比，使得即使当进气量变化时，排气的氧气存储量的每单位时间的校正量 净化催化剂保持恒定。