公开(公告)号：US08150597B2

公开(公告)日：2012-04-03

申请号：US12391974

申请日：2009-02-24

申请人： Masahisa Yamakawa ,  Toshiaki Nishimoto ,  Hirokazu Matsuura ,  Takashi Youso ,  Kouji Shishime ,  Mikinori Ohashi

发明人： Masahisa Yamakawa ,  Toshiaki Nishimoto ,  Hirokazu Matsuura ,  Takashi Youso ,  Kouji Shishime ,  Mikinori Ohashi

IPC分类号： G06F19/00 ,  F02D13/02 ,  F02D41/10 ,  F02B75/12 ,  F01L1/34

CPC分类号： F02D41/0002 ,  F02D13/0215 ,  F02D13/0269 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/142 ,  Y02T10/42

摘要： Methods and systems for controlling an internal combustion engine are provided. One example method may include closing an intake valve later during a cylinder cycle than a timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized, and earlier during the cylinder cycle as a desired amount of air to be inducted into the cylinder increases, while an engine is operating at a given engine speed. The method may further include closing the intake valve earlier during a cylinder cycle as the engine speed increases when the desired amount of air to be inducted into the cylinder is at a maximum.

摘要翻译： 提供了用于控制内燃机的方法和系统。 一个示例性方法可以包括在气缸循环期间稍后关闭进气门比从空气进气通道引入气缸的空气量将最大化的时间，以及在气缸循环期间较早的期望空气量 引擎进入汽缸增加，而发动机在给定的发动机转速下运行。 该方法可以进一步包括当汽缸循环期间较早地关闭进气门，因为当被引入汽缸的所需空气量处于最大值时发动机转速增加。

公开(公告)号：US20090216427A1

公开(公告)日：2009-08-27

申请号：US12391974

申请日：2009-02-24

申请人： Masahisa Yamakawa ,  Toshiaki Nishimoto ,  Hirokazu Matsuura ,  Takashi Youso ,  Kouji Shishime ,  Mikinori Ohashi

发明人： Masahisa Yamakawa ,  Toshiaki Nishimoto ,  Hirokazu Matsuura ,  Takashi Youso ,  Kouji Shishime ,  Mikinori Ohashi

IPC分类号： F02D41/30

CPC分类号： F02D41/0002 ,  F02D13/0215 ,  F02D13/0269 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/142 ,  Y02T10/42

摘要： Methods and systems for controlling an internal combustion engine are provided. One example method may include closing an intake valve later during a cylinder cycle than a timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized, and earlier during the cylinder cycle as a desired amount of air to be inducted into the cylinder increases, while an engine is operating at a given engine speed. The method may further include closing the intake valve earlier during a cylinder cycle as the engine speed increases when the desired amount of air to be inducted into the cylinder is at a maximum.

摘要翻译： 提供了用于控制内燃机的方法和系统。 一个示例性方法可以包括在气缸循环期间稍后关闭进气门比从空气进气通道引入气缸的空气量将最大化的时间，以及在气缸循环期间作为期望的空气量的时间 引擎进入汽缸增加，而发动机在给定的发动机转速下运行。 该方法可以进一步包括当汽缸循环期间较早地关闭进气门，因为当被引入汽缸的所需空气量处于最大值时发动机转速增加。

公开(公告)号：US20100077990A1

公开(公告)日：2010-04-01

申请号：US12566561

申请日：2009-09-24

申请人： Kouji Shishime ,  Naoya Matsuo ,  Masahisa Yamakawa ,  Tatsuya Fujikawa ,  Takashi Youso ,  Toshiaki Nishimoto ,  Naohiro Yamaguchi ,  Mikinori Ohashi

发明人： Kouji Shishime ,  Naoya Matsuo ,  Masahisa Yamakawa ,  Tatsuya Fujikawa ,  Takashi Youso ,  Toshiaki Nishimoto ,  Naohiro Yamaguchi ,  Mikinori Ohashi

IPC分类号： F02B3/00 ,  F02D41/30

CPC分类号： F02D41/3023 ,  F02D13/0261 ,  F02D41/402 ,  F02P5/152 ,  Y02T10/18 ,  Y02T10/44

摘要： There is provided a method of controlling a spark ignited internal combustion engine having a fuel injector which injects fuel directly into its combustion chamber. The method comprises injecting a total amount of fuel into a combustion chamber by early in a compression stroke during a cylinder cycle at a first engine speed. The method further comprises injecting a first stage of fuel into the combustion chamber during a cylinder cycle by an early in a compression stroke of the cylinder cycle, and injecting a second stage of fuel by late in the compression stroke during the cylinder cycle at a second engine speed less than the first engine speed, after injecting the first stage of fuel. The amount of the second stage fuel is greater than an amount of said first stage fuel. Accordingly, the first and second stage fuels may not be pre-ignited before the spark ignition.

摘要翻译： 提供了一种控制具有燃料喷射器的火花点火内燃机的方法，所述燃料喷射器将燃料直接喷射到其燃烧室中。 该方法包括在第一发动机转速的汽缸循环期间，在压缩行程中早期将总量的燃料喷入燃烧室。 该方法还包括在汽缸循环期间在汽缸循环的早期压缩冲程期间将第一级燃料喷射到燃烧室中，并且在汽缸循环期间在压缩冲程中稍后喷射第二级燃料 发动机转速小于第一发动机转速后，注入第一级燃油。 第二级燃料的量大于所述第一级燃料的量。 因此，第一和第二级燃料在火花点火之前可能不被预先点燃。

公开(公告)号：US08639432B2

公开(公告)日：2014-01-28

申请号：US13038131

申请日：2011-03-01

申请人： Naoya Matsuo ,  Kouji Shishime ,  Motoo Hayakawa ,  Hiroki Morimoto ,  Mikinori Ohashi

发明人： Naoya Matsuo ,  Kouji Shishime ,  Motoo Hayakawa ,  Hiroki Morimoto ,  Mikinori Ohashi

IPC分类号： G01M15/12 ,  F02P5/04

CPC分类号： G01L23/225 ,  F02D35/02 ,  F02D35/023 ,  F02D35/027 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/402 ,  F02D2041/001 ,  F02P5/045 ,  F02P5/152 ,  Y02T10/42 ,  Y02T10/44 ,  Y02T10/46

摘要： When a maximum value of vibration intensity (maximum vibration intensity)(Vmax) acquired from a vibration sensor (33) in a low engine speed/high engine load (operating region (R)) is equal to or greater than a given threshold value (X), a spark timing of a spark plug (16) is shifted from a point set in a normal state on a retard side with respect to a compression top dead center, farther toward the retard side. Then, when a maximum vibration intensity (Vmax2) acquired after the spark timing retard is greater than a maximum vibration intensity (Vmax1) acquired before the spark timing retard, it is determined that preignition occurs. This technique makes it possible to reliably detect preignition using the vibration sensor, while distinguishing the preignition from knocking. An in-cylinder pressure sensor for detecting an in-cylinder pressure of an engine may be used to determine the presence or absence of the preignition, in the same manner.

摘要翻译： 当在低发动机转速/高发动机负荷（运行区域（R））中从振动传感器33获取的振动强度（最大振动强度）（Vmax）的最大值等于或大于给定阈值时 X）中，火花塞（16）的火花正时从相对于压缩上止点的延迟侧的正常状态设定的点偏移向延迟侧。 然后，当在火花正时延迟之后获取的最大振动强度（Vmax2）大于在火花正时延迟之前获取的最大振动强度（Vmax1）时，确定发生预点火。 这种技术使得可以使用振动传感器可靠地检测预警，同时区分预取和敲击。 用于检测发动机的缸内压力的缸内压力传感器可以以相同的方式用于确定是否存在预启动。

公开(公告)号：US08851050B2

公开(公告)日：2014-10-07

申请号：US13038156

申请日：2011-03-01

申请人： Kouji Shishime ,  Naoya Matsuo ,  Mikinori Ohashi

发明人： Kouji Shishime ,  Naoya Matsuo ,  Mikinori Ohashi

IPC分类号： F02P5/04 ,  F02D41/40 ,  F02D15/00 ,  F02D35/02 ,  F02D13/02 ,  F02B75/12

CPC分类号： F02D41/401 ,  F02B2075/125 ,  F02D13/0238 ,  F02D13/0269 ,  F02D15/00 ,  F02D35/021 ,  F02D35/027 ,  F02D2200/025 ,  Y02T10/12 ,  Y02T10/123 ,  Y02T10/142 ,  Y02T10/44

摘要： When preignition is detected, and an engine speed is less than a predetermined value (Nex), an air/fuel ratio is enriched (S22), and then, when the preignition is detected even after enriching the air/fuel ratio, an effective compression ratio of an engine is reduced (S23), whereafter, when the preignition is detected even after reducing the effective compression ratio, a part of injection fuel is injected in a compression stroke (S24). On the other hand, when preignition is detected, and an engine speed is equal to or greater than the predetermined value (Nex), the air/fuel ratio is enriched (S31), and then, when the preignition is detected even after enriching the air/fuel ratio, a part of the fuel is injected in the compression stroke (S32). This makes it possible to effectively suppress the occurrence of preignition while maximally avoiding deterioration in emission performance and lowering in engine power output.

摘要翻译： 当检测到预警，并且发动机转速小于预定值（Nex）时，空气/燃料比被浓缩（S22），然后，即使在浓缩空燃比之后也检测到预警，有效压缩 发动机的比例降低（S23），此后即使在降低有效压缩比之后也检测到预警，在压缩冲程中喷射一部分喷射燃料（S24）。 另一方面，当检测到预警，并且发动机转速等于或大于预定值（Nex）时，空燃比被富集（S31），然后，即使在浓缩之后也检测到预警 空燃比，在压缩冲程中喷射一部分燃料（S32）。 这使得可以有效地抑制预激发的发生，同时最大限度地避免发射性能的劣化和发动机功率输出的降低。