公开(公告)号：US06230486B1

公开(公告)日：2001-05-15

申请号：US09465395

申请日：1999-12-17

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Tadashi Sato ,  Masaki Ueno ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Tadashi Sato ,  Masaki Ueno ,  Yoshihisa Iwaki

IPC: F01N300

CPC classification number: F02D41/1441 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1456 ,  G05B13/0255

Abstract: A plant control system has a reference value setting unit for variably setting a reference value for an air-fuel ratio to be given to an exhaust system including a catalytic converter, depending on a component based on an adaptive control law of a manipulated variable of the air-fuel ratio generated by a controller according to an adaptive sliding mode control process in order to converge an output of an O2 sensor disposed downstream of the catalytic converter to a target value. The manipulated variable generated by the controller represents the difference between the air-fuel ratio and the reference value, required to converge the output of the O2 sensor to the target value.

Abstract translation: 工厂控制系统具有参考值设定单元，用于根据构成要素的操作变量的自适应控制定律，根据构成要素，对包含催化转换器的排气系统进行空燃比的基准值的可变设定 由控制器根据自适应滑动模式控制过程产生的空燃比，以将设置在催化转化器下游的O2传感器的输出收敛到目标值。 由控制器产生的操纵变量表示将O2传感器的输出收敛到目标值所需的空燃比和参考值之间的差。

公开(公告)号：US5797261A

公开(公告)日：1998-08-25

申请号：US688857

申请日：1996-07-31

Applicant: Shusuke Akazaki ,  Yoichi Nishimura ,  Yuji Yasui

Inventor： Shusuke Akazaki ,  Yoichi Nishimura ,  Yuji Yasui

IPC: F02D45/00 ,  F02D41/14 ,  F01N3/20

CPC classification number: F02D41/1402 ,  F02D41/1441 ,  F02D41/1456 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1433

Abstract: An air-fuel ratio control system for an internal combustion engine has a first air-fuel ratio sensor arranged in an exhaust passage at a location upstream of a catalyst and a second air-fuel ratio sensor arranged in the exhaust passage at a location downstream of the catalyst. In response to an output from the first air-fuel ratio sensor, an air-fuel ratio correction coefficient is calculated for correcting an amount of fuel supplied to the engine in a manner such that an air-fuel ratio of a mixture supplied to the engine is converged to a desired air-fuel ratio. In response to an output from the second air-fuel ratio sensor, a desired air-fuel ratio correction amount is calculated for correcting the desired air-fuel ratio. A learned value of the desired air-fuel ratio correction amount is calculated, and the desired air-fuel ratio is corrected. Calculation of the learned value of the desired air-fuel ratio correction amount is permitted depending on a ratio between a time period over which the output from the second air-fuel ratio sensor is on a richer side with respect to a predetermined reference value and a time period over which the output from the second air-fuel ratio sensor is on a leaner side with respect to the predetermined reference value.

Abstract translation: 用于内燃机的空燃比控制系统具有布置在催化剂上游位置的排气通道中的第一空燃比传感器和布置在排气通道中位于催化剂上游的位置处的第二空燃比传感器 催化剂。 响应于第一空燃比传感器的输出，计算空燃比校正系数，以校正供应给发动机的燃料量，使得供应给发动机的混合物的空燃比 收敛到期望的空燃比。 响应于来自第二空燃比传感器的输出，计算出期望的空燃比校正量，以校正期望的空燃比。 计算所需空燃比校正量的学习值，校正所需的空燃比。 根据第二空燃比传感器的输出相对于预定参考值在更丰富的一侧的时间段与第二空燃比传感器的输出相对于预定的参考值之间的比率，可以计算所需的空燃比校正量的学习值 来自第二空燃比传感器的输出相对于预定参考值处于较瘦侧的时间段。

公开(公告)号：US5758630A

公开(公告)日：1998-06-02

申请号：US580662

申请日：1995-12-29

Applicant: Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Yoichi Nishimura ,  Isao Komoriya

Inventor： Hidetaka Maki ,  Shusuke Akazaki ,  Yusuke Hasegawa ,  Yoichi Nishimura ,  Isao Komoriya

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/34

CPC classification number: F02D41/008 ,  F02D41/1402 ,  F02D41/1473 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1433 ,  F02D41/1456

Abstract: A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates a controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled variable obtained at least based on an output of said air/fuel ratio sensor, to a desired value. The air/fuel ratio sensor outputs are sampled and one of the sampled data is selected as the air/fuel ratio to be input to the adaptation mechanism. Similarly, the senor outputs are sampled and one of the sampled is selected in accordance with another characteristic to be used in the estimation of the air/fuel ratios of the individual cylinder. The air/fuel ratio is discriminated to be within a prescribed range, and set to a predetermined value when it is determined to be within the prescribed range.

Abstract translation: 一种用于内燃机的燃料计量控制系统，包括具有自适应控制器的反馈回路和估计控制器参数+ E，cirθ+ EE的自适应机构。 自适应控制器校正燃料喷射量，使至少基于所述空气/燃料比传感器的输出获得的受控变量达到期望值。 空气/燃料比传感器输出被采样，并且其中一个采样数据被选择为要输入到适应机构的空燃比。 类似地，传感器输出被采样，并且根据用于估计单个气缸的空气/燃料比的另一特性来选择采样中的一个。 空气/燃料比被判断为在规定范围内，并且当确定在规定范围内时将其设定为预定值。

公开(公告)号：US5505174A

公开(公告)日：1996-04-09

申请号：US421181

申请日：1995-04-13

Applicant: Isao Komoriya ,  Yusuke Hasegawa ,  Hidetaka Maki ,  Shusuke Akazaki ,  Hiroshi Kitagawa ,  Toru Kitamura

Inventor： Isao Komoriya ,  Yusuke Hasegawa ,  Hidetaka Maki ,  Shusuke Akazaki ,  Hiroshi Kitagawa ,  Toru Kitamura

IPC: F02D21/08 ,  F02D41/00 ,  F02M25/07 ,  F02D41/04 ,  F02P5/15

CPC classification number: F02D41/0072 ,  F02M26/57 ,  F02D2041/1431 ,  Y02T10/47

Abstract: A system for estimating an exhaust gas recirculation rate for an internal combustion engine. In the system, the EGR rate when its operation is steady is first determined to a desired value with respect to the engine operating conditions at least including the engine speed and the engine load, then the EGR rate is estimated as;EGR rate=(steady-state EGR rate).times.{(gas flow rate QACT determined by the actual valve lifting amount and the ratio between the upstream pressure and the downstream pressure of valve)/(gas flow rate QCMD determined by a command value and the ratio between the upstream pressure and the downstream pressure of valve)} A delay time until the recycled gas enters the combustion chamber is determined and one from among the EGR rates or a fuel injection correction coefficients calculated therefrom consecutively is selected.

Abstract translation: 一种用于估计内燃机的排气再循环速率的系统。 在该系统中，其运转稳定时的EGR率首先被确定为至少包括发动机转速和发动机负荷的发动机运行条件的期望值，则EGR率被估计为： EGR率=（稳态EGR率）x {（由实际阀提升量确定的气体流量QACT和阀的上游压力与下游压力之间的比率）/（由指令值确定的气体流量QCMD和 阀的上游压力和下游压力之间的比率）}确定直到再循环气体进入燃烧室的延迟时间，并且选择EGR率之中的一个或连续计算的燃料喷射校正系数。

公开(公告)号：US5239963A

公开(公告)日：1993-08-31

申请号：US975384

申请日：1992-11-12

Applicant: Hidehito Ikebe ,  Shusuke Akazaki

Inventor： Hidehito Ikebe ,  Shusuke Akazaki

IPC: F02D13/02 ,  F02D29/00 ,  F02D45/00 ,  F02P5/15

CPC classification number: F02P5/1504 ,  F02P5/1502 ,  F02B2275/18 ,  Y02T10/46 ,  Y10T477/67

Abstract: An ignition timing control system controls ignition timing of spark plugs of an internal combustion engine associated with a plurality of changeover devices, changeover of an operative state of each of which has influence upon output torque of the engine. Operating conditions of the engine are detected. A basic ignition timing advance value is calculated based on results of detection of the operating conditions of the engine. A changeover of the operative state of each of the changeover devices is detected. A correction value for correcting the basic ignition timing advance value for suppressing the engine torque is calculated, in response to results of detection of the changeover of the operative state of each of the changeover devices. The largest one of a plurality of the correction values calculated is selected to a final correction value to be used for correcting the basic ignition timing advance value, when changeovers of the operative states of at least two of the changeover devices are detected substantially at the same time.

公开(公告)号：US20080230930A1

公开(公告)日：2008-09-25

申请号：US12053124

申请日：2008-03-21

Applicant: Shusuke AKAZAKI ,  Yuji YAMAMOTO

Inventor： Shusuke AKAZAKI ,  Yuji YAMAMOTO

IPC: B01F3/04

CPC classification number: F02B31/06 ,  F02B2275/48 ,  F02M25/06 ,  F02M26/20 ,  F02M26/42 ,  F02M35/10032 ,  F02M35/10085 ,  F02M35/10124 ,  F02M35/10216 ,  F02M35/10222 ,  F02M35/10262 ,  F02M35/112 ,  Y02T10/121 ,  Y02T10/125 ,  Y02T10/146

Abstract: An intake air amount controlling apparatus of an engine is provided. The apparatus comprises an intake manifold that is branched from an intake manifold collecting portion of the engine. The intake manifold communicates with an intake port of a cylinder head of a corresponding cylinder. The apparatus further comprises a throttle valve in the intake manifold of the cylinder and a throttle bore provided in the intake manifold. The throttle bore has a curved surface. The throttle valve rotates such that one half of the throttle valve contacts with the curved surface of the throttle bore until the throttle valve reaches a predetermined opening degree. Thus, an air flow via the one half of the throttle valve is prevented from entering the intake port. An air flow via the other half of the throttle valve is allowed to enter the intake port. Areas of cross sections, which are orthogonal to an air flow passing in the intake manifold, of the intake manifold at upstream and downstream of the throttle valve are larger than an area of a cross section, which is orthogonal to an air flow entering the intake port, crossing an open face at which the intake manifold communicates with the intake port.

Abstract translation: 提供一种发动机的进气量控制装置。 该装置包括从发动机的进气歧管收集部分分支的进气歧管。 进气歧管与相应气缸的气缸盖的进气口连通。 该装置还包括在气缸的进气歧管中的节流阀和设置在进气歧管中的节流孔。 节气门孔具有曲面。 节流阀旋转使得节流阀的一半与节流孔的曲面接触，直到节流阀达到预定开度。 因此，防止通过节流阀的一半的空气流进入进气口。 通过另一半节流阀的气流被允许进入进气口。 与进气歧管中通过的空气流正交的横截面与节气门上游和下游的进气歧管的面积大于与进入进气口的空气流正交的横截面面积 通过进气歧管与进气口连通的开口面。

公开(公告)号：US07377262B2

公开(公告)日：2008-05-27

申请号：US11703211

申请日：2007-02-07

Applicant: Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

Inventor： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

IPC: F02D41/14

CPC classification number: F02D35/028 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1458

Abstract: An air-fuel ratio controlling apparatus includes an internal pressure detector for detecting an internal pressure of a combustion chamber of the engine. The apparatus estimates a motoring pressure of the engine and determines a start-of-combustion time, a time point when a difference between the internal pressure and the motoring pressure exceeds a predetermined value in a compression stroke and a combustion stroke of the engine. Firing delay for each cylinder is calculated from as a duration from sparking to the start-of-combustion time. Air-fuel ratio of each cylinder is estimated based on the firing delay and fuel injection amount for each cylinder is calculated to make the air-fuel ratio of plural cylinders uniform.

Abstract translation: 空燃比控制装置包括用于检测发动机的燃烧室的内部压力的内部压力检测器。 该装置估计发动机的运转压力，并且确定起动燃烧时间，即内压和电动压力之间的差在发动机的压缩冲程和燃烧冲程中超过预定值的时间点。 从火花到燃烧时间的持续时间计算每个气缸的燃烧延迟。 基于燃烧延迟来估算每个气缸的空燃比，并计算每个气缸的燃料喷射量，以使多个气缸的空燃比均匀。

公开(公告)号：US20080053404A1

公开(公告)日：2008-03-06

申请号：US11896203

申请日：2007-08-30

Applicant: Takahide Mizuno ,  Shusuke Akazaki ,  Tetsuya Ishiguro

Inventor： Takahide Mizuno ,  Shusuke Akazaki ,  Tetsuya Ishiguro

IPC: F02P5/153

CPC classification number: F02P5/153 ,  F02D35/023 ,  F02D35/028 ,  F02D2041/1432 ,  F02P5/1504 ,  Y02T10/46

Abstract: An ignition timing control system for an internal combustion engine, which is capable of ensuring both stability of control in a steady operating condition of the engine, and an excellent follow-up property of a controlled variable to a target value in a transient operating condition of the engine, even when the controlled variable contains a lot of high-frequency noise components. In the ignition timing control system, a maximum pressure angle-calculating section calculates a maximum pressure angle based on an in-cylinder pressure and a crank angle position. A target angle-calculating section calculates a target angle. A maximum pressure angle controller calculates a maximum pressure angle correction term with a control algorithm to which is applied a sliding mode control algorithm, using a value obtained by performing ε-filtering on a switching function, such that the maximum pressure angle converges to the target angle. The ignition timing is calculated by adding corrected ignition timing to the value.

Abstract translation: 一种用于内燃机的点火正时控制系统，其能够确保在发动机的稳定运行状态下的控制的稳定性，以及在瞬态运行状态下控制变量与目标值的良好追随性 发动机，即使受控变量包含大量的高频噪声分量。 在点火正时控制系统中，最大压力角计算部根据缸内压力和曲柄角位置来计算最大压力角。 目标角度计算部分计算目标角度。 最大压力角控制器利用控制算法计算最大压力角校正项，该控制算法应用滑动模式控制算法，使用通过对切换功能执行ε滤波而获得的值，使得最大压力角收敛到目标 角度。 通过将校正的点火正时与该值相加来计算点火正时。

公开(公告)号：US20070265763A1

公开(公告)日：2007-11-15

申请号：US11798031

申请日：2007-05-09

Applicant: Shusuke Akazaki ,  Takahide Mizuno ,  Masayoshi Nishino ,  Mitsuo Hashizume

Inventor： Shusuke Akazaki ,  Takahide Mizuno ,  Masayoshi Nishino ,  Mitsuo Hashizume

IPC: G06F19/00 ,  F02M7/00

CPC classification number: F02D41/1405 ,  F02D35/023 ,  F02D35/024 ,  F02D41/1458

Abstract: An air-fuel ratio control system for an internal combustion engine, which is capable of accurately estimating an exhaust gas state parameter according to the properties of fuel, thereby making it possible to properly control the air-fuel ratio of a mixture. The air-fuel ratio control system 1 estimates an exhaust gas state parameter indicative of a state of exhaust gases, as an estimated exhaust gas state parameter (AF13 NN) by inputting a detected combustion state parameter (DCADLYIG) indicative of a combustion state of the mixture in the engine 3, and detected operating state parameters (NE, TW, PBA, IGLOG, TOUT) indicative of operating states of the engine 3, to a neural network (NN) configured as a network to which are input the combustion state parameter (DCADLYIG) and the operating state parameters (NE, TW, PBA, IGLOG, TOUT), and in which the exhaust gas state parameter is used as a teacher signal (step 1), and controls the air-fuel ratio based on the estimated exhaust gas state parameter (AF_NN) (steps 3, 4, and 24 to 28).

Abstract translation: 一种用于内燃机的空燃比控制系统，其能够根据燃料的特性精确地估计排气状态参数，从而可以适当地控制混合物的空燃比。 空燃比控制系统1通过输入检测到的燃烧状态参数（DCADLYIG）来估计表示排气状态的排气状态参数作为估计排气状态参数（AF 13 N NN） ）和表示发动机3中的混合物的燃烧状态的检测到的运行状态参数（NE，TW，PBA，IGLOG，TOUT）发送到被配置为网络的神经网络（NN） 输入燃烧状态参数（DCADLYIG）和操作状态参数（NE，TW，PBA，IGLOG，TOUT），其中排气状态参数用作教师信号（步骤1），并且控制 基于估计的废气状态参数（AF_NN）（步骤3,4和24至28）的空燃比。

公开(公告)号：US06848420B2

公开(公告)日：2005-02-01

申请号：US10640946

申请日：2003-08-13

Applicant: Tetsuya Ishiguro ,  Masahiro Sato ,  Eiji Hashimoto ,  Shusuke Akazaki

Inventor： Tetsuya Ishiguro ,  Masahiro Sato ,  Eiji Hashimoto ,  Shusuke Akazaki

IPC: F02D9/02 ,  F02D11/10 ,  F02D41/14 ,  F02D41/22 ,  F02D45/00 ,  F02D9/10

CPC classification number: F02D11/107 ,  F02D11/105 ,  F02D41/1403 ,  F02D2041/1423

Abstract: A control system for a throttle valve actuating device is disclosed. The throttle valve actuating device has a throttle valve of an internal combustion engine and an actuator for actuating the throttle valve. Model parameters of a controlled object model obtained by modeling the throttle valve actuating device is identified by an identifier. The model parameters includes a specific model parameter irrelevant to an input and an output of the controlled object model. An opening of the throttle valve is controlled to a target opening using the identified model parameters. It is determined that the throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value.

Abstract translation: 公开了一种用于节流阀致动装置的控制系统。 节流阀致动装置具有内燃机的节流阀和用于致动节流阀的致动器。 通过对节气门致动装置建模获得的受控对象模型的模型参数由标识符标识。 模型参数包括与受控对象模型的输入和输出无关的特定模型参数。 使用所识别的模型参数将节流阀的开度控制到目标开度。 当特定模型参数的值变得大于预定值时，确定节流阀致动装置异常。