公开(公告)号：US06367245B1

公开(公告)日：2002-04-09

申请号：US09654157

申请日：2000-09-01

Applicant: Yuji Yasui ,  Tetsuo Endo ,  Tadashi Sato ,  Shiro Takakura

Inventor： Yuji Yasui ,  Tetsuo Endo ,  Tadashi Sato ,  Shiro Takakura

IPC: F01N300

CPC classification number: F01N3/0835 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0878 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/03 ,  F01N2900/0422 ,  Y02T10/47

Abstract: Exhaust gas sensors or air-fuel ratio sensors for generating outputs depending on the concentration of HC are disposed respectively upstream and downstream of an HC adsorbent in an exhaust passage. When an exhaust gas emitted from an internal combustion engine is supplied to the exhaust passage to allow the HC adsorbent to adsorb HC in the exhaust gas, an amount of HC adsorbed by the HC adsorbent per unit time is determined based on the difference between outputs from the exhaust gas sensors. A deteriorated state of the HC adsorbent is evaluated by comparing the determined adsorbed amount of HC and its integrated value with a threshold set depending on a temperature or the like of the HC adsorbent.

Abstract translation: 用于根据HC浓度产生输出的排气传感器或空燃比传感器分别设置在排气通道中的HC吸附剂的上游和下游。 当从内燃机排出的排气被供给到排气通道以允许HC吸附剂吸附废气中的HC时，每单位时间吸附HC吸附剂的HC量根据来自 废气传感器。 通过将所确定的HC的吸附量与其积分值进行比较，根据HC吸附剂的温度等设定阈值来评价HC吸附剂的劣化状态。

公开(公告)号：US06327850B1

公开(公告)日：2001-12-11

申请号：US09680482

申请日：2000-10-06

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

IPC: F01N300

CPC classification number: F02D41/0082 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/1403 ,  F02D2041/141 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1431 ,  F02D2041/1433

Abstract: An object system is regarded as being equivalent to a system for generating an output of an O2 sensor or exhaust gas sensor from a target combined air-fuel ratio that is produced by combining target air-fuel ratios KCMD for respective cylinder groups according to a filtering process of the mixed model type. With the equivalent system as an object to be controlled, an air-fuel ratio processing controller determines a target combined air-fuel ratio, and determines a target air-fuel ratio KCMD for each of the cylinder groups from the target combined air-fuel ratio. The air-fuel ratios in the cylinder groups are manipulated into the target air-fuel ratio according to a feed-forward control process.

Abstract translation: 目标系统被认为等同于根据目标组合空燃比产生O2传感器或废气传感器的输出的系统，该目标组合空燃比是根据过滤器将各个气缸组的目标空燃比KCMD组合 混合模型类型的过程。 以等效系统作为被控制对象，空燃比处理控制器确定目标组合空燃比，并根据目标组合空燃比确定每个气缸组的目标空燃比KCMD 。 根据前馈控制过程将气缸组中的空燃比操纵为目标空燃比。

公开(公告)号：US06209517B1

公开(公告)日：2001-04-03

申请号：US09411978

申请日：1999-10-04

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F02M300

CPC classification number: F02D31/005 ,  F02D41/32 ,  F02D2041/1422 ,  F02P5/1508 ,  Y02T10/42 ,  Y02T10/46

Abstract: A control apparatus controls the rotational speed of an internal combustion engine by generating a command value for ignition timing of the internal combustion engine to convert an actual rotational speed of the internal combustion engine to a predetermined target rotational speed according to a feedback control process and controlling the ignition timing based on the generated command value. The feedback control process is carried out by a response designating control process capable of variably designating a rate of reduction of the difference between the actual rotational speed of the internal combustion engine and the target rotational speed with the value of a predetermined parameter in the feedback control process. The value of the predetermined parameter is variably established under a predetermined condition.

Abstract translation: 控制装置通过根据反馈控制处理生成用于内燃机的点火正时的指令值来将内燃机的实际转速转换为规定的目标转速来控制内燃机的转速， 基于生成的指令值的点火正时。 反馈控制处理通过响应指定控制处理来进行，该响应指定控制处理能够以反馈控制中的预定参数的值可变地指定内燃机的实际转速与目标转速之间的差减小的速率 处理。 在预定条件下可变地建立预定参数的值。

公开(公告)号：US06195988B1

公开(公告)日：2001-03-06

申请号：US09499975

申请日：2000-02-08

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: F02D41/1458 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1406 ,  F02D41/1477 ,  F02D41/1481 ,  F02D2041/1422 ,  F02D2041/1423 ,  F02D2041/1431

Abstract: An object system for generating an output signal of an O2 sensor from a target air-fuel ratio is expressed as a model including a response delay element and a dead time element. Data of identified values of parameters of the model are sequentially generated by an identifier. Data of an estimated value of the output signal of the O2 sensor after a dead time of the object system is sequentially generated by an estimator. The target air-fuel ratio is generated according to an adaptive sliding mode control process performed by a sliding mode controller using the data of the identified and estimated values. The air-fuel ratio of an internal combustion engine is manipulated on the basis of the target air-fuel ratio according to a feed-forward control process.

Abstract translation: 用于从目标空燃比产生O2传感器的输出信号的目标系统被表示为包括响应延迟元件和死区时间元件的模型。 通过标识符顺序地生成模型的参数的标识值的数据。 由对象系统的死区时间之后的O2传感器的输出信号的估计值的数据由估计器依次产生。 目标空燃比根据滑动模式控制器使用所识别的和估计值的数据执行的自适应滑动模式控制处理来生成。 根据前馈控制处理，基于目标空燃比来操作内燃机的空燃比。

公开(公告)号：US06192311B1

公开(公告)日：2001-02-20

申请号：US09411867

申请日：1999-10-04

Applicant: Yuji Yasui ,  Masaki Ueno

Inventor： Yuji Yasui ,  Masaki Ueno

IPC: F02D4114

CPC classification number: F02D41/0002 ,  F02D41/1403 ,  F02D2041/1433 ,  G05B13/0255 ,  Y02T10/42

Abstract: A control apparatus controls an internal combustion engine by generating a command value for a manipulative quantity of a flow control valve disposed in an intake air passage of an internal combustion engine controllable by the flow control valve, according to a sliding mode control process in order to converge a predetermined control quantity relative to the internal combustion engine to a target value thereof. An object to be controlled by the sliding mode control process is modeled by a discrete system for generating the control quantity from the command value for the manipulative quantity of the flow control valve. The sliding mode control process uses a switching function constructed by a linear function composed of a plurality of time-series data of the difference between the control quantity and the target value. An algorithm for generating the command value for the manipulative quantity of the flow control valve in a predetermined control cycle according to the sliding mode control process is constructed based on the discrete-system model of the object to be controlled and the switching function.

Abstract translation: 控制装置通过根据滑动模式控制处理产生用于由可控流量控制阀配置在内燃机的进气通道中的流量控制阀的操作量的指令值，以控制内燃机，以便 将相对于内燃机的预定控制量收敛到其目标值。 通过滑动模式控制过程控制的对象由用于从流量控制阀的操作量的命令值产生控制量的离散系统建模。 滑动模式控制处理使用由由控制量和目标值之间的差的多个时间序列数据组成的线性函数构成的切换功能。 基于要控制的对象的离散系统模型和切换功能，构建根据滑动模式控制处理在预定控制周期中为流量控制阀的操作量产生命令值的算法。

公开(公告)号：US06188953B1

公开(公告)日：2001-02-13

申请号：US09311353

申请日：1999-05-13

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

IPC: F02D4114

CPC classification number: F02D41/1441 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1456 ,  F02D2041/1409 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1433 ,  G05B13/047

Abstract: A plant control system has an actuator for generating an input to the plant, a first sensor for detecting an output from the plant, a manipulated variable determining unit for sequentially determining a manipulated variable which determines the input to the plant to equalize the output from the first sensor to a predetermined target value, an actuator controller for controlling operation of the actuator based on the manipulated variable determined by the manipulated variable determining unit, and an estimator for sequentially generating data representing an estimated value of the output from the first sensor after a total dead time which is the sum of a first dead time of the plant and a second dead time of a system which comprises the actuator and the actuator controller. The manipulated variable determining unit determines the manipulated variable based on the data generated by the estimator.

Abstract translation: 工厂控制系统具有用于产生对工厂的输入的致动器，用于检测来自工厂的输出的第一传感器，用于顺序地确定操作变量的操作变量确定单元，其确定对工厂的输入以使来自 第一传感器到预定目标值，执行器控制器，用于基于由操纵变量确定单元确定的操作变量来控制致动器的操作;以及估计器，用于依次产生表示在第一传感器之后的输出的估计值的数据 总死区时间是工厂的第一个死区时间和系统的第二死区时间的总和，其包括致动器和致动器控制器。 操纵变量确定单元基于由估计器生成的数据来确定操纵变量。

公开(公告)号：US06182445B2

公开(公告)日：2001-02-06

申请号：US09498654

申请日：2000-02-07

Applicant: Hideharu Yamazaki ,  Yuji Yasui ,  Takashi Haga ,  Katsumi Saito ,  Yoshihisa Iwaki

Inventor： Hideharu Yamazaki ,  Yuji Yasui ,  Takashi Haga ,  Katsumi Saito ,  Yoshihisa Iwaki

IPC: F01N300

CPC classification number: F02D41/221 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2550/06 ,  F01N2900/0422 ,  F02M26/15 ,  Y02T10/22 ,  Y02T10/40 ,  Y02T10/47 ,  Y10T137/8158

Abstract: A system for detecting malfunctions of an exhaust switch-over valve of an internal combustion engine, which opens/closes a bypass exhaust gas passage branched from an exhaust pipe of the engine and storing an adsorbent that adsorbs unburned components of the exhaust gas generated by the engine when the engine is started. In the system, the entrance temperature and the exit temperature in the bypass exhaust gas passage are detected and compared with each other in a first detection period when the passage is opened and in a second detection period when the passage is closed. Based on this comparison, it is determined whether the valve malfunctions. Alternatively, the valve malfunction is determined by comparing the valve opening/closing state with an instruction to operate the valve. With this, little time lag exists in the detection, thereby improving malfunction detection accuracy.

Abstract translation: 一种用于检测内燃机的排气切换阀的故障的系统，其对从发动机的排气管分支的旁通废气通道进行开闭，并且存储吸附由所述排气管产生的废气的未燃烧成分的吸附剂 发动机起动时发动机。 在该系统中，当通道打开时的第一检测时段和通道关闭的第二检测期间，检测旁路排气通道中的入口温度和出口温度并进行比较。 基于此比较，确定阀是否故障。 或者，通过将阀打开/关闭状态与操作阀的指令进行比较来确定阀故障。 因此，在检测中存在很少的时滞，从而提高故障检测精度。

公开(公告)号：US6112517A

公开(公告)日：2000-09-05

申请号：US153300

申请日：1998-09-15

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

IPC: F02D45/00 ,  F02D41/14 ,  G05B13/00 ,  G05B13/02 ,  G05B13/04 ,  G05B21/02 ,  F01N3/00

CPC classification number: F02D41/1441 ,  F02D41/1403 ,  G05B13/042 ,  F02D2041/1409 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/1402 ,  F02D41/1456

Abstract: A plant control system controls a plant modeled as a discrete-system model including an element relative to a response delay of the plant. The plant control system includes an actuator for generating an input to the plant, a first detector detecting an output from the plant, and a second detector for detecting the input to the plant which is generated by the actuator. An identifier identifies parameters to be established of the discrete-system model based on data representing an output of the first detector and data representing an output of the second detector. A manipulated variable determining unit determines a manipulated variable which determines the input to the plant to control operation of the actuator such that the output from the first detector will be equalized to a predetermined target value, according to a predetermining algorithm using the parameters of the discrete-system model which are identified by the identifier.

Abstract translation: 工厂控制系统控制模拟为包括相对于设备的响应延迟的元件的离散系统模型的工厂。 工厂控制系统包括用于产生对工厂的输入的致动器，检测来自工厂的输出的第一检测器和用于检测由致动器产生的对工厂的输入的第二检测器。 标识符基于表示第一检测器的输出的数据和表示第二检测器的输出的数据来标识要建立的离散系统模型的参数。 操纵变量确定单元根据使用离散的参数的预定算法确定确定对工厂的输入以控制致动器的操作的操作变量，使得来自第一检测器的输出将被均衡为预定目标值 系统模型由标识符标识。

公开(公告)号：US6079205A

公开(公告)日：2000-06-27

申请号：US153156

申请日：1998-09-15

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

IPC: F02D45/00 ,  F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  G05B13/00 ,  G05B13/02 ,  G05B13/04 ,  G05B21/02 ,  F01N3/00

CPC classification number: G05B21/02 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1477 ,  G05B13/047 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/008 ,  F02D41/1402 ,  F02D41/1456

Abstract: A plant control system controls a plant modeled as a discrete-system model including an element relative to a response delay of the plant and an element relative to a dead time of the plant. The plant control system includes an actuator for generating an input to the plant, a first detector for detecting an output from the plant, and a second detector for detecting the input to the plant. An estimator generates data representing an estimated value of an output of the first detector after the dead time, based on data representing the output of the first detector and data representing an output of the second detector. A manipulated variable determining unit determines a manipulated variable which determines the input to the plant, based on the estimated value, represented by the data generated by the estimator, of the output of the first detector after the dead time. The input to the plant from the actuator is controlled such that the output from the first detector will be equalized to a predetermined target value.

Abstract translation: 植物控制系统控制模拟为离散系统模型的植物，其包括相对于植物的响应延迟的元素和相对于植物的死时间的元件。 工厂控制系统包括用于产生对工厂的输入的致动器，用于检测来自工厂的输出的第一检测器和用于检测对工厂的输入的第二检测器。 基于表示第一检测器的输出的数据和表示第二检测器的输出的数据，估计器产生表示死区时间之后的第一检测器的输出的估计值的数据。 操作变量确定单元基于由估计器生成的数据表示的估计值，确定在死区时间之后的第一检测器的输出的确定到工厂的输入的操作变量。 来自致动器的对工厂的输入被控制，使得来自第一检测器的输出将被均衡到预定的目标值。

公开(公告)号：US6021767A

公开(公告)日：2000-02-08

申请号：US143535

申请日：1998-08-28

Applicant: Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

Inventor： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

IPC: F02D45/00 ,  F02D41/14 ,  F02D41/24 ,  G05B13/04 ,  F02D41/00

CPC classification number: G05B13/042 ,  F02D41/1402 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1433 ,  F02D2250/12 ,  F02D41/1456 ,  F02D41/2483

Abstract: An air-fuel ratio control system for a multi-cylinder engine is provided. An air-fuel ratio sensor is arranged in an exhaust system of the engine for detecting an air-fuel ratio of a mixture supplied to the engine and for generating an output indicative of the air-fuel ratio of the mixture. An adaptive controller determines an amount of fuel to be supplied to the engine with a first predetermined repetition period in a manner such that the output from the air-fuel ratio sensor becomes equal to a desired value. An adaptive parameter-adjusting mechanism adjusts adaptive parameters used by the adaptive controller. In the adaptive parameter-adjusting mechanism, the adaptive parameters are calculated with a second predetermined repetition period longer than the first predetermined repetition period, and output data indicative of results of the calculation is generated. Further, the output data indicative of results of the calculation is smoothed and output data indicative of the smoothed data is generated with a repetition period at least equal to the first predetermined repetition period. The adaptive controller uses the smoothed data as values of the adaptive parameters.

Abstract translation: 提供了一种用于多缸发动机的空燃比控制系统。 在发动机的排气系统中布置有空燃比传感器，用于检测供应到发动机的混合物的空燃比并产生表示混合物的空燃比的输出。 自适应控制器以使得来自空燃比传感器的输出变得等于期望值的方式，以第一预定重复周期来确定要提供给发动机的燃料量。 自适应参数调整机制调整自适应控制器使用的自适应参数。 在自适应参数调整机构中，以比第一预定重复周期长的第二预定重复周期来计算自适应参数，并且生成表示计算结果的输出数据。 此外，表示计算结果的输出数据被平滑，并且以至少等于第一预定重复周期的重复周期生成指示平滑数据的输出数据。 自适应控制器使用平滑数据作为自适应参数的值。