公开(公告)号：US5199403A

公开(公告)日：1993-04-06

申请号：US911028

申请日：1992-07-09

申请人： Shusuke Akazaki ,  Hidehito Ikebe

发明人： Shusuke Akazaki ,  Hidehito Ikebe

IPC分类号： F02D41/14 ,  F01L1/26 ,  F02D13/02 ,  F02D41/00 ,  F02D43/00 ,  F02D45/00

CPC分类号： F01L1/267 ,  F02D13/0234 ,  F02D41/0002 ,  F02B2275/18 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/42

摘要： An air-fuel ratio control system for an internal combustion engine having at least one intake valve with its valve timing changeable at least between low-speed valve timing suitable for engine operation in a low engine rotational speed region, and high-speed valve timing suitable for engine operation in a high engine rotational speed region. When changeover is to be effected from the low-speed valve timing to the high-speed valve timing, an ECU changes the desired air-fuel ratio to be applied when the low-speed valve timing is selected, to one to be applied when the high-speed valve timing is selected, and changes the valve timing to the high-speed valve timing after the desired air-fuel ratio has been changed to the one to be applied when the high-speed valve timing is selected.

公开(公告)号：US20140048041A1

公开(公告)日：2014-02-20

申请号：US13985143

申请日：2012-02-20

申请人： Shusuke Akazaki ,  Yuji Yamamoto ,  Toshitaka Hachiro ,  Gaku Sato

发明人： Shusuke Akazaki ,  Yuji Yamamoto ,  Toshitaka Hachiro ,  Gaku Sato

IPC分类号： F02M69/00

CPC分类号： F02M69/00 ,  F02B23/104 ,  F02B2075/125 ,  F02D35/023 ,  F02M57/005 ,  F02M61/14 ,  F02M2200/247 ,  G01L23/10 ,  Y02T10/123 ,  Y02T10/125

摘要： An in-cylinder pressure detecting device of a direct injection type internal combustion engine is provided in which a ring-shaped pressure detection element (34) surrounding a fuel injection hole (33b) is provided in the vicinity of an extremity of an injector (20) that injects fuel into a combustion chamber. Since the pressure detection element is provided on the injector, not only is it unnecessary to change the shape or structure of the cylinder head or the combustion chamber in order to provide the pressure detection element, but it is also possible to cool the pressure detection element (34) by fuel passing through the inside of the injector to thus enhance the precision of pressure detection and the durability. Further, since the ring-shaped pressure detection element (34) surrounds the periphery of the fuel injection hole (33b), it is possible to maximize the dimensions of the pressure detection element (34) to thus further enhance the precision of pressure detection while avoiding interference between the pressure detection element (34) and fuel injected via the fuel injection hole (33b).

摘要翻译： 提供一种直喷式内燃机的缸内压力检测装置，其中，在喷射器（20）的末端附近设置围绕燃料喷射孔（33b）的环状压力检测元件（34） ）将燃料喷射到燃烧室中。 由于压力检测元件设置在喷射器上，为了提供压力检测元件，不仅不需要改变气缸盖或燃烧室的形状或结构，而且还可以将压力检测元件 （34）通过喷射器内部的燃料，从而提高压力检测的精度和耐久性。 此外，由于环状压力检测元件34围绕燃料喷射孔33b的周围，所以能够使压力检测元件34的尺寸最大化，能够进一步提高压力检测的精度， 避免压力检测元件（34）与经由燃料喷射孔（33b）喷射的燃料之间的干扰。

公开(公告)号：USRE43588E1

公开(公告)日：2012-08-21

申请号：US10800651

申请日：2004-03-16

申请人： Shusuke Akazaki ,  Kohei Hanada ,  Yuji Yasui ,  Tadashi Satoh ,  Takashi Haga

发明人： Shusuke Akazaki ,  Kohei Hanada ,  Yuji Yasui ,  Tadashi Satoh ,  Takashi Haga

IPC分类号： F02M25/06

CPC分类号： B01D53/9495 ,  B01D53/9445 ,  B01D53/9486 ,  B01D53/96 ,  B01D2253/108 ,  B01D2253/3425 ,  F01N3/0835 ,  F01N3/0871 ,  F01N3/0878 ,  F01N9/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/36 ,  F01N2250/12 ,  F01N2370/40 ,  F01N2410/00 ,  F01N2410/12 ,  F02D9/04 ,  F02D9/1055 ,  F02D21/08 ,  F02M26/15 ,  F02M26/46 ,  F02M26/49 ,  Y02T10/20 ,  Y02T10/22 ,  Y02T10/47

摘要： A system for purifying exhaust gas generated by an internal combustion engine including a bypass branching out from the exhaust pipe downstream of a catalyst and merging to the exhaust pipe, an adsorber installed in the bypass, a bypass valve member which closes the bypass, and an EGR conduit connected to the bypass at one end and connected to the air intake system for recirculating the exhaust gas to the air intake system. The bypass valve member is opened for a period after engine startup to introduce the exhaust gas such that the adsorber installed in the bypass adsorbs the unburnt HC component in the exhaust gas. The adsorber adsorbs the HC component when the exhaust temperature rises and the adsorbed component is recirculated to the air intake system through the EGR conduit. In the system, the bypass valve is provided at or close to the branching point in the exhaust pipe and a chamber is provided close to the branching point such that the conduit is connected to the bypass at the one end in the chamber. The bypass valve member is combined with an exhaust pipe valve member as a combination valve such that when the bypass valve member closes the bypass, the exhaust pipe valve member opens the exhaust pipe. With the arrangement, the system can effectively prevent the exhaust pipe from being clogged even when a valve for closing a bypass is stuck in the closed position. At the same time, the system can provide a relatively short EGR conduit for recirculating unburnt HC component adsorbed from the adsorber and the adsorption and desorption are conducted optimally. A system for purifying exhaust gas generated by an internal combustion engine including a bypass branching out from the exhaust pipe downstream of a catalyst and merging to the exhaust pipe, an adsorber installed in the bypass, a bypass valve member which closes the bypass, and an EGR conduit connected to the bypass at one end and connected to the air intake system for recirculating the exhaust gas to the air intake system. The adsorber adsorbs the HC component in the exhaust gas when the exhaust gas temperature rises and the adsorbed component is recirculated to the air intake system through the EGR conduit. The bypass valve member is combined with an exhaust pipe vale member as a combination valve such that when the bypass valve member closes the bypass, the exhaust pipe valve member opens the exhaust pipe.

公开(公告)号：US07909018B2

公开(公告)日：2011-03-22

申请号：US12222782

申请日：2008-08-15

申请人： Tetsuya Ishiguro ,  Shusuke Akazaki ,  Yuji Yamamoto

发明人： Tetsuya Ishiguro ,  Shusuke Akazaki ,  Yuji Yamamoto

IPC分类号： F02P5/00

CPC分类号： F02D35/024 ,  F02D35/023 ,  F02D35/028 ,  F02D41/2416 ,  F02D41/34 ,  F02P5/00 ,  F02P7/06

摘要： A control for determining a firing timing of an engine is provided. An in-cylinder pressure is detected at a predetermined time interval. An in-cylinder pressure for every predetermined crank angle is calculated based on the detected in-cylinder pressure. A motoring pressure in a case where combustion is not performed in the engine is estimated. It is detected that a pressure difference between the calculated in-cylinder pressure and the motoring pressure has exceeded a determination value. A time point is identified, as a firing timing, at which the pressure difference has exceeded a determination value with a finer resolution than the resolution of the predetermined crank angle interval through an interpolation calculation. The interpolation calculation uses a first crank angle when it is detected that the pressure difference has exceeded the determination value, the pressure difference corresponding to the first crank angle, a second crank angle previous to the first crank angle by the predetermined crank angle and a pressure difference corresponding to the second crank angle.

摘要翻译： 提供了一种用于确定发动机的点火正时的控制。 以预定的时间间隔检测缸内压力。 基于检测到的缸内压力计算每个预定曲柄角的缸内压力。 估计在发动机不进行燃烧的情况下的驾驶压力。 检测出计算出的缸内压力和驾驶压力之间的压力差超过了确定值。 通过内插计算，将时间点识别为具有比通过预定的曲柄角间隔的分辨率更精细的分辨率的压力差超过确定值的点火时刻。 当检测到压力差已经超过确定值，对应于第一曲柄角的压力差，第一曲柄角之前的预定曲柄角的第二曲柄角和压力时，插值计算使用第一曲柄角 差异对应于第二曲柄角度。

公开(公告)号：US07831377B2

公开(公告)日：2010-11-09

申请号：US12434995

申请日：2009-05-04

申请人： Shusuke Akazaki ,  Takafumi Komori

发明人： Shusuke Akazaki ,  Takafumi Komori

IPC分类号： F02P5/153

CPC分类号： F02P5/153 ,  F02D35/023 ,  F02D35/028 ,  F02D41/068 ,  Y02T10/46

摘要： An ignition timing control system for an internal combustion engine, which is capable of properly carrying out ignition timing control over a wide control range, thereby making it possible to improve fuel economy, and is capable of suppressing combustion fluctuation, thereby making it possible to improve drivability. Ignition timing is calculated, when the engine is determined to be in an intense combustion mode, such that a largest in-cylinder pressure angle at which in-cylinder pressure becomes largest converges to a target angle, whereas when the engine is determined to be in a weak combustion mode, the same is calculated by feedback, based on the target angle and combustion state parameters indicative of a combustion state in the cylinder.

摘要翻译： 一种用于内燃机的点火正时控制系统，其能够在宽的控制范围内适当地进行点火正时控制，从而可以提高燃料经济性，并且能够抑制燃烧波动，从而可以改善 驾驶性能。 当发动机被确定为强燃烧模式时，计算点火正时，使得缸内压力变得最大的最大缸内压力角收敛到目标角度，而当发动机被确定为处于 弱燃烧模式，通过反馈计算，基于指示气缸中的燃烧状态的目标角度和燃烧状态参数来计算。

公开(公告)号：US07637244B2

公开(公告)日：2009-12-29

申请号：US12053124

申请日：2008-03-21

申请人： Shusuke Akazaki ,  Yuji Yamamoto

发明人： Shusuke Akazaki ,  Yuji Yamamoto

IPC分类号： F02D9/10

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US07610139B2

公开(公告)日：2009-10-27

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： G06F19/00 ,  G01M15/08 ,  F02D28/00 ,  F02D45/00

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：US07455047B2

公开(公告)日：2008-11-25

申请号：US11790078

申请日：2007-04-23

申请人： Mitsuo Hashizume ,  Kentaro Onuma ,  Takahide Mizuno ,  Shusuke Akazaki

发明人： Mitsuo Hashizume ,  Kentaro Onuma ,  Takahide Mizuno ,  Shusuke Akazaki

IPC分类号： F02D41/00

CPC分类号： F02D35/024 ,  F02D35/023 ,  F02D35/028 ,  F02D41/187 ,  F02D2200/0414

摘要： An engine control unit includes pressure detector provided in a combustion chamber of the engine. A motoring pressure of the engine is estimated. A combustion starting time is detected when the difference between an internal pressure detected by the pressure detector and the pressure estimated by the ECU exceeds a predetermined value. When the internal pressure detected by the pressure detector reaches its peak after the combustion starting time has been detected, the crank angle at this time point is determined to correspond to the maximum internal cylinder pressure that is generated by combustion.

摘要翻译： 发动机控制单元包括设置在发动机的燃烧室中的压力检测器。 估计发动机的驾驶压力。 当由压力检测器检测到的内部压力与由ECU估计的压力之间的差异超过预定值时，检测燃烧开始时间。 在检测到燃烧开始时间之后，由压力检测器检测到的内部压力达到其峰值时，确定该时间点的曲柄角度对应于由燃烧产生的最大内部气缸压力。

公开(公告)号：US20080262677A1

公开(公告)日：2008-10-23

申请号：US12081550

申请日：2008-04-17

申请人： Takafumi Komori ,  Shusuke Akazaki ,  Takahide Mizuno

发明人： Takafumi Komori ,  Shusuke Akazaki ,  Takahide Mizuno

IPC分类号： G06F19/00

CPC分类号： B60T8/172 ,  B60T8/174 ,  B60T2230/02 ,  B60W40/103 ,  B60W2050/0037 ,  B60W2520/14 ,  B60W2540/10

摘要： A vehicle body slip angle-estimating device which, in estimating a vehicle body slip angle with an algorithm using a nonlinear model, is capable of accurately estimating a vehicle body slip angle irrespective of whether the frequency of occurrence of a state during traveling of the vehicle. A basic value-calculating section calculates a basic value of a vehicle body slip angle with an algorithm using a neural network model. A turning state-determining section determines whether the vehicle is in a predetermined limit turning traveling state. A correction value-calculating section calculates a correction value with an algorithm using a predetermined linear model when the vehicle is in the predetermined state. In the other cases, the correction value is set to 0. A straight traveling-determining section sets the angle to the sum of the basic value and the correction value when the vehicle is in a turning traveling state.

摘要翻译： 一种车体滑移角估计装置，其在使用非线性模型的算法估计车体滑移角时能够精确地估计车体滑移角，而与车辆行驶中的状态的发生频率无关 。 基本值计算部使用神经网络模型来算出车体滑移角的基本值。 转动状态判定部判定车辆是否处于规定的转弯行驶状态。 当车辆处于预定状态时，校正值计算部分使用预定线性模型的算法来计算校正值。 在其他情况下，校正值被设定为0.直行驶确定部分在车辆处于转弯行驶状态时将角度设置为基本值和校正值之和。

公开(公告)号：US07386388B2

公开(公告)日：2008-06-10

申请号：US11798031

申请日：2007-05-09

申请人： Shusuke Akazaki ,  Takahide Mizuno ,  Masayoshi Nishino ,  Mitsuo Hashizume

发明人： Shusuke Akazaki ,  Takahide Mizuno ,  Masayoshi Nishino ,  Mitsuo Hashizume

IPC分类号： G06F19/00 ,  F02M7/00 ,  F02D41/14

CPC分类号： F02D41/1405 ,  F02D35/023 ,  F02D35/024 ,  F02D41/1458

摘要： 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).

摘要翻译： 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。