公开(公告)号：US07606650B2

公开(公告)日：2009-10-20

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： G01L1/00 ,  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：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：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：US20070221170A1

公开(公告)日：2007-09-27

申请号：US11703211

申请日：2007-02-07

申请人： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

发明人： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

IPC分类号： F02M7/00 ,  F02D41/00 ,  G06F17/00

CPC分类号： F02D35/028 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1458

摘要： 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.

摘要翻译： 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：US07377262B2

公开(公告)日：2008-05-27

申请号：US11703211

申请日：2007-02-07

申请人： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

发明人： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

IPC分类号： F02D41/14

CPC分类号： F02D35/028 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1458

摘要： 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.

摘要翻译： 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：US09587612B2

公开(公告)日：2017-03-07

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 ,  F02D35/02 ,  F02M57/00 ,  F02B23/10 ,  G01L23/10 ,  F02M61/14 ,  F02B75/12

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：US20090055074A1

公开(公告)日：2009-02-26

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： F02D45/00

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：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：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：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。