公开(公告)号：US20080059044A1

公开(公告)日：2008-03-06

申请号：US11896066

申请日：2007-08-29

申请人： Takahide Mizuno ,  Shusuke Akazaki ,  Hiroyuki Sugiura ,  Mitsuo Hashizume

发明人： Takahide Mizuno ,  Shusuke Akazaki ,  Hiroyuki Sugiura ,  Mitsuo Hashizume

IPC分类号： F02D28/00

CPC分类号： G01M15/11 ,  G01L23/221 ,  G01L27/007 ,  G01M15/08

摘要： An in-cylinder pressure detection device for an internal combustion engine, which is capable of detecting an in-cylinder pressure accurately without being adversely affected by changes in the atmospheric pressure even when the atmospheric pressure changes. An in-cylinder pressure sensor detects pressure within a cylinder as a detected in-cylinder pressure. An ECU estimates pressure generated in the cylinder during a non-combustion period as a motoring pressure. An atmospheric pressure sensor detects an atmospheric pressure (PA). The ECU corrects the motoring pressure according to the atmospheric pressure and identifies correction parameters such that the difference between the detected in-cylinder pressure detected during a compression stroke of the engine and the corrected motoring pressure becomes minimum, and corrects the detected in-cylinder pressure by the identified correction parameters, to thereby calculate an in-cylinder pressure.

摘要翻译： 一种用于内燃机的缸内压力检测装置，其能够即使在大气压变化时也能够正确地检测缸内压力而不受大气压力的变化的不利影响。 缸内压力传感器检测气缸内的压力作为检测到的缸内压力。 ECU估计在非燃烧期间在气缸中产生的压力作为驱动压力。 大气压传感器检测大气压（PA）。 ECU根据大气压力校正驾驶压力，并识别校正参数，使得在发动机的压缩冲程期间检测到的检测到的缸内压力与校正的驾驶压力之间的差变为最小，并校正检测到的缸内压力 通过所识别的校正参数，从而计算缸内压力。

公开(公告)号：US20070277780A1

公开(公告)日：2007-12-06

申请号：US11806447

申请日：2007-05-31

申请人： Shusuke Akazaki ,  Mitsuo Hashizume ,  Takahide Mizuno ,  Yuji Yamamoto

发明人： Shusuke Akazaki ,  Mitsuo Hashizume ,  Takahide Mizuno ,  Yuji Yamamoto

IPC分类号： F02P5/00 ,  G06F19/00

CPC分类号： F02P5/1522 ,  F02D35/023 ,  F02D35/027 ,  F02D35/028 ,  F02P5/153 ,  G01L23/221 ,  Y02T10/46

摘要： An ignition timing control apparatus and method for an internal combustion engine, and an engine control unit are provided for more rapidly and effectively restraining knocking as the entire internal combustion engine, and extending the lifetime of the internal combustion engine. The ignition timing control apparatus comprising an ECU. The ECU determines a basic ignition timing on a cylinder-by-cylinder basis, calculates a knock intensity on a cylinder-by-cylinder bases based on a detected signal of a cylinder inner pressure sensor, and updates a correction coefficient learning value for a corresponding cylinder when the knock intensity is larger than a predetermined first determination value and is smaller than a predetermined second determination value larger than the predetermined first determination value, and updates the knock intensities for all the cylinders when the one knock intensity parameter is equal to or larger than the predetermined second determination value. Then, the ECU calculates a knock correction term on a cylinder-by-cylinder basis in accordance with the correction coefficient learning value, and corrects the basic ignition timing with the knock correction term, thereby determining an ignition timing on a cylinder-by-cylinder basis.

摘要翻译： 提供一种用于内燃机和发动机控制单元的点火正时控制装置和方法，用于更快速有效地限制作为整个内燃机的爆震，并延长内燃机的使用寿命。 点火正时控制装置包括ECU。 ECU根据汽缸内压传感器的检测信号，确定基于缸缸的基本点火正时，并根据汽缸内压传感器的检测信号，计算出汽缸底座上的爆震强度，并更新相应的校正系数学习值 当所述爆震强度大于预定的第一确定值并且小于大于所述预定的第一确定值的预定的第二确定值时，当所述一个爆震强度参数等于或更大时，更新所有气缸的爆震强度 比预定的第二确定值。 然后，ECU根据校正系数学习值，逐缸地计算敲击校正项，并用敲击校正项校正基本点火正时，由此确定圆柱滚子上的点火正时 基础。

公开(公告)号：US20070261482A1

公开(公告)日：2007-11-15

申请号：US11798030

申请日：2007-05-09

申请人： Takahide Mizuno ,  Shusuke Akazaki ,  Hiroyuki Sugiura ,  Yuji Yamamoto ,  Mitsuo Hashizume ,  Kentaro Onuma

发明人： Takahide Mizuno ,  Shusuke Akazaki ,  Hiroyuki Sugiura ,  Yuji Yamamoto ,  Mitsuo Hashizume ,  Kentaro Onuma

IPC分类号： G01M15/00

CPC分类号： F02D41/2474 ,  F02D35/023 ,  F02D41/1448 ,  F02D41/2441 ,  F02D2041/1433 ,  G01M15/08

摘要： An in-cylinder pressure detection device for an internal combustion engine, which is capable of calculating a hysteresis amount properly to thereby detect in-cylinder pressure with high accuracy. The in-cylinder pressure detection device comprises an in-cylinder pressure sensor that detects in-cylinder pressure as a detected in-cylinder pressure. The in-cylinder pressure detection device estimates an in-cylinder pressure generated when combustion is not performed in the cylinder, as a motoring pressure, calculates a hysteresis amount indicative of a difference between the detected in-cylinder pressure and an actual in-cylinder pressure, based on the detected in-cylinder pressure and the motoring pressure obtained during the exhaust stroke of the engine, and corrects the detected in-cylinder pressure based on the calculated hysteresis amount.

摘要翻译： 一种用于内燃机的缸内压力检测装置，其能够适当地计算滞后量，从而以高精度检测缸内压力。 缸内压力检测装置包括缸内压力传感器，其将缸内压力检测为检测到的缸内压力。 缸内压力检测装置估计在气缸中不进行燃烧时产生的缸内压力作为运转压力，计算表示检测到的缸内压力和实际缸内压力之间的差的滞后量 基于检测到的缸内压力和在发动机的排气冲程期间获得的驾驶压力，并且基于计算出的滞后量来校正检测到的缸内压力。

公开(公告)号：US20060116812A1

公开(公告)日：2006-06-01

申请号：US11268728

申请日：2005-11-08

申请人： Shusuke Akazaki ,  Futoshi Koga ,  Masaki Ueno

发明人： Shusuke Akazaki ,  Futoshi Koga ,  Masaki Ueno

IPC分类号： G01M15/08

CPC分类号： G01M15/08 ,  F02P15/06 ,  G01M15/11

摘要： A combustion state detecting apparatus is provided for an engine having internal pressure sensor for detecting an internal pressure of a combustion chamber of the engine and crank angle detector for detecting a crank angle of the engine. The apparatus calculates a volume of the combustion chamber based on the crank angle detected by the crank angle detector and estimator for estimating a motoring pressure of the engine in accordance with a calculation equation using the calculated volume. The apparatus adjusts either of the pressure detected by the internal pressure sensor and the pressure estimated by the estimator during a compression stroke of the engine to minimize the error between the detected pressure and the estimated pressure. The apparatus determines a combustion state during a combustion stroke of the engine based on a relation between the pressure adjusted and the other pressure. The apparatus identifies parameters of the calculation equation during a compression stroke of the engine to minimize the error between the pressure detected by the internal pressure sensor and the pressure estimated by the estimator.

摘要翻译： 为具有用于检测发动机的燃烧室的内部压力的内部压力传感器和用于检测发动机的曲轴转角的曲轴角度检测器的发动机提供燃烧状态检测装置。 该装置基于由曲轴角度检测器和估计器检测到的曲柄角度来计算燃烧室的体积，用于根据使用所计算的体积的计算方程来估计发动机的动力。 该装置调节由内部压力传感器检测到的压力和由发动机的压缩冲程期间由估计器估计的压力，以使检测到的压力和估计压力之间的误差最小化。 该装置基于压力调节和其它压力之间的关系来确定发动机的燃烧冲程期间的燃烧状态。 该装置在发动机的压缩冲程期间识别计算方程的参数，以使由内部压力传感器检测的压力与由估计器估计的压力之间的误差最小化。

公开(公告)号：US06763655B2

公开(公告)日：2004-07-20

申请号：US09797995

申请日：2001-03-05

申请人： Masaki Ueno ,  Shusuke Akazaki ,  Masahiro Sato ,  Hideharu Yamazaki ,  Tetsuo Endo ,  Yoshihisa Iwaki ,  Takashi Haga ,  Tadashi Sato

发明人： Masaki Ueno ,  Shusuke Akazaki ,  Masahiro Sato ,  Hideharu Yamazaki ,  Tetsuo Endo ,  Yoshihisa Iwaki ,  Takashi Haga ,  Tadashi Sato

IPC分类号： F01N300

CPC分类号： F01N3/0835 ,  F01N3/0814 ,  F01N3/0878 ,  F01N3/101 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0093 ,  F01N2250/12 ,  F01N2550/03 ,  F01N2560/028 ,  F01N2570/12 ,  F01N2900/0422 ,  Y02T10/22 ,  Y02T10/47

摘要： A catalyst state detector for detecting a state of an exhaust gas purifying catalyst which is capable of accurately detecting the state, including deterioration, of an HC adsorbent contained in the exhaust gas purifying catalyst for adsorbing hydrocarbons in exhaust gases of an internal combustion engine, and can be manufactured at a low cost. The exhaust gas purifying catalyst is arranged at an intermediate portion of an exhaust pipe, and the HC adsorbent is capable of adsorbing hydrocarbons and moisture in exhaust gases. The catalyst state detector comprises a downstream humidity sensor arranged at a location downstream of the HC adsorbent in the exhaust pipe for detecting a humidity of the exhaust gases, and an adsorbent state detecting unit (ECU) for detecting the state of the HC adsorbent in accordance with the result of detection made by the downstream humidity sensor.

摘要翻译： 一种用于检测废气净化催化剂的状态的催化剂状态检测器，其能够精确地检测包含在用于吸收内燃机的废气中的碳氢化合物的废气净化催化剂中的HC吸附剂的状态的劣化，以及 可以以低成本制造。 排气净化催化剂配置在排气管的中间部，HC吸附剂能够吸附废气中的碳氢化合物和水分。 催化剂状态检测器包括布置在排气管中的HC吸附剂下游的位置处的下游湿度传感器，用于检测废气的湿度;以及吸附状态检测单元（ECU），用于检测HC吸附剂的状态 由下游湿度传感器进行检测。

公开(公告)号：US06698186B2

公开(公告)日：2004-03-02

申请号：US10168685

申请日：2002-10-28

申请人： Masaki Ueno ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa

发明人： Masaki Ueno ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa

IPC分类号： F01N300

CPC分类号： F02D41/1441 ,  F01N11/007 ,  F01N2550/02 ,  F02D41/0235 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1456 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1431 ,  F02D2041/1432 ,  F02D2041/1433 ,  Y02T10/47

摘要： A target air-fuel ratio KCMD for an exhaust gas upstream of a catalytic converter is sequentially determined to converge the output VO2/OUT of an O2 sensor downstream of the catalytic converter to a target value VO2/TARGET, and the amount of fuel supplied to an internal combustion engine is controlled to converge the output KACT of an air-fuel ratio sensor to the target air-fuel ratio KCMD. While the amount of fuel supplied to the internal combustion engine is being thus controlled, the value of a deterioration linear function &sgr; whose variable components are represented by time-series data of the output VO2/OUT of the O2 sensor is determined. A central value of the square &sgr;2 of the value of the deterioration linear function &sgr; is determined as a deterioration evaluating parameter. A deteriorated state of the catalytic converter is evaluated on the basis of the value of the deterioration evaluating parameter.

摘要翻译： 依次确定催化转化器上游排气的目标空燃比KCMD，将催化转化器下游的O2传感器的输出VO2 / OUT收敛到目标值VO2 / TARGET，并将供给的燃料量 控制内燃机将空燃比传感器的输出KACT收敛到目标空燃比KCMD。 在这样控制供给到内燃机的燃料量的同时，确定由O2传感器的输出VO2 / OUT的时间序列数据表示可变成分的退化线性函数sigma的值。 退化线性函数sigma的值的平方西格玛2的中心值被确定为劣化评估参数。 基于劣化评价参数的值来评价催化转化器的劣化状态。

公开(公告)号：US06189317B1

公开(公告)日：2001-02-20

申请号：US09411232

申请日：1999-10-04

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

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

IPC分类号： F01N300

CPC分类号： B60W10/06 ,  B60K6/42 ,  B60K6/54 ,  F02D31/005 ,  F02D37/02 ,  F02D41/024 ,  F02P5/1506 ,  F02P5/1508 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/46 ,  Y10S903/903 ,  Y10S903/917

摘要： An apparatus for controlling an internal combustion engine has an amount-of-intake-air control unit for generating a command value for the opening of a flow control valve in an intake passage of the engine, which emits exhaust gases through a catalytic converter, so as to increase an amount of intake air introduced into a combustion chamber by a predetermined quantity greater when the engine operates in an idling mode after it has started to operate than when the engine operates in a normal idling mode, and controlling the opening of the flow control valve based on the generated command value, and an ignition timing control unit for controlling the ignition timing according to a feedback control process to correct the ignition timing so as to be retarded in order to converge the rotational speed of the engine to a predetermined target rotational speed while the amount of intake air is being increased. The amount-of-intake-air control unit successively acquires amount-of-heat data representing the amount of heat energy actually given to the catalytic converter by exhaust gases flowing into said catalytic converter while the amount of intake air is being increased, and corrects the command value for the opening of said flow control valve according to a feedback control process in order to converge the acquired amount-of-heat data to a predetermined target value representing an amount of heat energy to be given to said catalytic converter.

摘要翻译： 用于控制内燃机的装置具有进气量控制单元，用于产生用于通过催化转化器排放废气的发动机的进气通道中的流量控制阀的打开的指令值，因此 当发动机在开始操作之后以怠速模式操作时比在发动机以正常怠速模式操作时将引入燃烧室中的进气量增加预定量更大，并且控制流量的打开 基于所生成的指令值的控制阀，以及点火正时控制单元，用于根据反馈控制处理来控制点火正时，以校正点火正时以便将发动机的转速收敛到预定目标 进气量增加时的转速。 进气量控制单元连续地获取表示当进气量增加时流入所述催化转化器的废气实际给予催化转化器的热能量的热量数据，并且校正 用于根据反馈控制过程打开所述流量控制阀的命令值，以便将所获取的热量数据收敛到表示给予所述催化转化器的热能量的预定目标值。

公开(公告)号：US6116213A

公开(公告)日：2000-09-12

申请号：US63732

申请日：1998-04-24

申请人： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Tadashi Satoh ,  Masaki Ueno

发明人： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Tadashi Satoh ,  Masaki Ueno

IPC分类号： F02D31/00 ,  F02D41/02 ,  F02D41/06 ,  F02P5/15 ,  F02D43/00

CPC分类号： F02P5/1506 ,  F02D31/003 ,  F02D41/024 ,  F02D41/067 ,  Y02T10/26 ,  Y02T10/46

摘要： A control system for controlling an internal combustion engine which discharge exhaust gases through an emission purifier includes a controller which increases the quantity of intake air drawn into the internal combustion engine while the internal combustion engine is idling after the internal combustion engine has started to operate, to a level which is greater by a predetermined increase than the quantity of intake air drawn into the internal combustion engine while the internal combustion engine is idling normally. The controller also generates a command value for ignition timing of the internal combustion engine according to a feedback control process to converge the rotational speed of the internal combustion engine toward a predetermined target rotational speed, and controlling the ignition timing of the internal combustion engine based on the generated command value thereby to retard the ignition timing. The controller establishes the target rotational speed by changing the target rotational speed from a preset rotational speed toward a predetermined idling speed after the rotational speed of the internal combustion engine has reached the preset rotational speed which is higher than the idling speed after the quantity of intake air drawn into the internal combustion engine has started being increased.

摘要翻译： 用于控制通过排放净化器排出废气的内燃机的控制系统包括：控制器，其在内燃机开始运转之后，在内燃机空转的同时增加吸入内燃机的进气量， 达到比内燃机正常空转时吸入内燃机的进气量大的预定增量的水平。 控制器还根据反馈控制处理产生内燃机的点火正时的指令值，以使内燃机的转速朝向预定的目标转速收敛，并且控制内燃机的点火正时基于 所产生的指令值从而延迟点火正时。 控制器通过在内燃机的旋转速度达到高于摄入量后的空转速度的预设转速之后，将目标转速从预设转速改变为预定怠速来建立目标转速 吸入内燃机的空气已经开始增加。

公开(公告)号：US5924281A

公开(公告)日：1999-07-20

申请号：US835192

申请日：1997-04-04

申请人： Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

发明人： Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

IPC分类号： F02D45/00 ,  F01N3/24 ,  F02D41/14 ,  G05B13/04 ,  F01N3/00

CPC分类号： G05B13/047 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1473 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/1402 ,  F02D41/1456

摘要： An air-fuel control system for use with an internal combustion engine has a catalytic converter disposed in an exhaust system of the engine, for purifying an exhaust gas emitted from the engine, a first exhaust gas sensor in the exhaust system for detecting an air-fuel ratio of the exhaust gas upstream of the catalytic converter, a second exhaust gas sensor in the exhaust system for detecting the concentration of a component of the exhaust gas which has passed through the catalytic converter, downstream of the catalytic converter, and a correction quantity calculator for determining a correction quantity to correct an air-fuel ratio of the engine based on an output from the second exhaust gas sensor so as to equalize the concentration of the component of the exhaust gas downstream of the catalytic converter to a predetermined appropriate value. The air-fuel ratio of the engine is controlled based on the determined correction quantity and an output from the first exhaust gas sensor so as to converge the concentration of the component toward the predetermined appropriate value. A state predictor estimates the concentration of the component, detected by the second exhaust gas sensor, after a dead time present in an exhaust system including the catalytic converter between the first and second exhaust gas sensors, based on outputs up to present from the first and second exhaust gas sensors. The correction quantity calculator determines the air-fuel ratio of the engine so as to equalize the concentration of the component to the predetermined appropriate value, based on the estimated concentration of the component.

摘要翻译： 一种与内燃机一起使用的空燃控制系统具有：催化转化器，其设置在发动机的排气系统中，用于净化从发动机排出的排气;排气系统中的第一排气传感器， 催化转化器上游的废气的燃料比，用于检测已经通过催化转化器的排气的成分浓度的排气系统中的第二废气传感器，以及催化转化器的下游的校正量 计算器，用于基于来自第二排气传感器的输出确定校正量以校正发动机的空燃比，以将催化转化器下游的排气的成分的浓度均匀化到预定的适当值。 基于所确定的校正量和来自第一排气传感器的输出来控制发动机的空燃比，以将部件的浓度朝向预定的适当值收敛。 状态预测器基于从第一和第二废气传感器到目前的输出，在包括第一和第二废气传感器之间的催化转化器的排气系统中存在的死区时间之后，估计由第二废气传感器检测到的部件的浓度， 第二排气传感器。 校正量计算器基于所估计的组分浓度，确定发动机的空燃比，以将组分的浓度与预定的适当值相等。

公开(公告)号：US5253630A

公开(公告)日：1993-10-19

申请号：US945519

申请日：1992-09-16

申请人： Shusuke Akazaki ,  Kotaro Miyashita

发明人： Shusuke Akazaki ,  Kotaro Miyashita

IPC分类号： F02B29/08 ,  F02D41/04 ,  F02D41/06 ,  F02D41/14 ,  F02D41/16

CPC分类号： F02D41/1475 ,  F02D41/1486 ,  F02B2275/18 ,  F02D41/1456

摘要： An air-fuel ratio control system for an internal combustion engine controls the air-fuel ratio of a mixture supplied to the engine to a desired air-fuel ratio in response to an output from an exhaust gas ingredient concentration sensor. A first value of the desired air-fuel ratio is calculated based on the rotational speed of the engine and the load on the engine. A second value of the desired air-fuel ratio is calculated based results of determination on whether a vehicle on which the engine is installed has just started from a standing position thereof. A third value of the desired air-fuel ratio is calculated based on results of determination on whether the temperature of the engine is lower than a predetermined value. The largest value of at least the first to third values of the desired air-fuel ratio is set to a final value of the desired air-fuel ratio.