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    Internal combustion engine including plural cylinders, control apparatus and control method for internal combustion engine including plural cylinders
    5.
    发明授权
    Internal combustion engine including plural cylinders, control apparatus and control method for internal combustion engine including plural cylinders 有权
    包括多个气缸的内燃机，包括多个气缸的内燃机的控制装置和控制方法

    公开(公告)号：US07464693B2

    公开(公告)日：2008-12-16

    申请号：US10867685

    申请日：2004-06-16

    申请人： Keizo Hiraku ,  Akira Hashizume ,  Takashi Tsunooka ,  Hirohiko Yamada ,  Masakazu Yamada

    发明人： Keizo Hiraku ,  Akira Hashizume ,  Takashi Tsunooka ,  Hirohiko Yamada ,  Masakazu Yamada

    IPC分类号： F02D31/00 ,  F02M7/00

    CPC分类号： F02D41/008 ,  F02B31/04 ,  F02B2031/006 ,  F02D13/02 ,  F02D15/04 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/1497 ,  F02D41/187 ,  F02D2041/001 ,  F02D2250/18 ,  Y02T10/146 ,  Y02T10/18 ,  Y02T10/42

    摘要： A combustion condition for each of plural cylinders included in an internal combustion engine is set by the following control that is performed according to an intake air amount in each of the plural cylinders. A reference cylinder is set to a cylinder in which the intake air amount is smallest, and a fuel injection amount for the reference cylinder is set to a fuel injection amount for realizing a stoichiometric air-fuel ratio. The air-fuel ratio in each of the cylinders other than the reference cylinder is set according to the intake air amount in each of the cylinders such that the torque equal to reference torque generated in the reference cylinder is generated. When this setting is performed, air-fuel ratios that are out of a predetermined region in the vicinity of the stoichiometric air-fuel ratio (i.e., air-fuel ratios that are in an avoidance region) are excluded. With respect to a cylinder in which the torque equal to the reference torque cannot be generated only by setting the air-fuel ratio, correction of the ignition timing is further performed so as to suppress a difference between the torque generated in the cylinder and the reference torque.

    摘要翻译： 包括在内燃机中的多个气缸中的每一个的燃烧条件通过根据多个气缸中的每个气缸中的进气量执行的以下控制来设定。 将基准气缸设定为吸气量最小的气缸，将基准气缸的燃料喷射量设定为实现理论空燃比的燃料喷射量。 根据每个气缸中的进气量设定与基准气缸以外的各个气缸的空燃比，使得产生与参考气缸中产生的基准转矩相等的转矩。 当执行该设定时，排除在理论空燃比附近（即，避开区域的空燃比）之外的预定区域之外的空燃比。 对于仅通过设定空燃比而不能产生与基准转矩相等的转矩的气缸，进一步进行点火正时的校正，以抑制气缸中产生的转矩和参考点之间的差 扭矩。

    Intake air amount control apparatus and intake air amount control method for internal combustion engines
    6.
    发明申请
    Intake air amount control apparatus and intake air amount control method for internal combustion engines 有权
    进气量控制装置和内燃机的进气量控制方法

    公开(公告)号：US20050039710A1

    公开(公告)日：2005-02-24

    申请号：US10921219

    申请日：2004-08-19

    申请人： Akira Hashizume ,  Keizo Hiraku ,  Hirohiko Yamada

    发明人： Akira Hashizume ,  Keizo Hiraku ,  Hirohiko Yamada

    IPC分类号： F01L1/34 ,  F01L13/00 ,  F02D13/02 ,  F02D41/22 ,  F02D43/00 ,  F02D45/00

    CPC分类号： F01L13/0063 ,  F01L1/267 ,  F01L1/3442 ,  F01L13/0015 ,  F01L2105/00 ,  F01L2800/00 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/227 ,  Y02T10/40

    摘要： If a valve timing adjusting mechanism has a problem, an ECU determines whether or not actual valve timing VTa is larger than valve timing advanced angle limit value VTegr. Depending on the determination, the ECU selects a value for target valve operating angle VLt from safety angles including intermediate valve operating angle VLmid and maximum valve operating angle VLmax. Each of the safety angles VLmid, VLmax is a valve operating angle at which engine combustion is stabilized at the current valve timing. With the valve operating angle fixed at the safety angle VLmid or VLmax, a throttle valve controls intake air amount. This prevents the engine combustion from becoming unstable, thus enabling the engine to be operated in an engine safety mode.

    摘要翻译： 如果气门正时调整机构有问题，则ECU判定实际气门正时VTa是否大于气门正时提前角限制值VTegr。 根据判定，ECU从包括中间阀操作角度VLmid和最大阀操作角度VLmax的安全角度选择目标阀操作角度VLt的值。 每个安全角VLmid，VLmax是当前气门正时发动机燃烧稳定的气门操作角度。 当阀门操作角度固定在安全角度VLmid或VLmax时，节流阀控制进气量。 这防止发动机燃烧变得不稳定，从而使得发动机能够在发动机安全模式下操作。

    Apparatus and method for controlling idle speed of internal combustion engine
    7.
    发明授权
    Apparatus and method for controlling idle speed of internal combustion engine 有权
    用于控制内燃机怠速的装置和方法

    公开(公告)号：US07610898B2

    公开(公告)日：2009-11-03

    申请号：US11661097

    申请日：2005-08-26

    申请人： Keizo Hiraku ,  Noboru Takagi ,  Kiyoo Hirose ,  Hirohiko Yamada

    发明人： Keizo Hiraku ,  Noboru Takagi ,  Kiyoo Hirose ,  Hirohiko Yamada

    IPC分类号： F02D41/04 ,  F01L1/34 ,  F02D11/10

    CPC分类号： F02D41/2451 ,  F02D13/08 ,  F02D31/003 ,  F02D41/0002 ,  F02D41/2464 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/18 ,  Y02T10/42

    摘要： An engine has a variable valve actuation mechanism that varies lift characteristics of an intake valve. An idle speed control apparatus has a control section for controlling an intake air amount of the engine in an idle state for adjusting an actual engine speed to a target engine speed. The control section sets a control amount related to control of the intake air amount in correspondence with the lift characteristics, which are varied by the variable valve actuation mechanism. Accordingly, the engine speed in the idle state is effectively controlled in correspondence with changes of the lift characteristics.

    摘要翻译： 发动机具有改变进气门的升程特性的可变气门致动机构。 怠速控制装置具有控制部，该控制部将用于将实际发动机转速调整为目标发动机转速的怠速状态的发动机的进气量进行控制。 控制部根据由可变气门驱动机构变化的升程特性，设定与进气量的控制有关的控制量。 因此，与升降特性的变化对应地有效地控制空转状态下的发动机转速。

    Apparatus And Method For Controlling Idle Speed Of Internal Combustion Engine
    8.
    发明申请
    Apparatus And Method For Controlling Idle Speed Of Internal Combustion Engine 有权
    用于控制内燃机空转速度的装置和方法

    公开(公告)号：US20080115762A1

    公开(公告)日：2008-05-22

    申请号：US11661097

    申请日：2005-08-26

    申请人： Keizo Hiraku ,  Noboru Takagi ,  Kiyoo Hirose ,  Hirohiko Yamada

    发明人： Keizo Hiraku ,  Noboru Takagi ,  Kiyoo Hirose ,  Hirohiko Yamada

    IPC分类号： F02D41/00 ,  F01L1/34 ,  F02D13/00

    CPC分类号： F02D41/2451 ,  F02D13/08 ,  F02D31/003 ,  F02D41/0002 ,  F02D41/2464 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/18 ,  Y02T10/42

    摘要： An engine has a variable valve actuation mechanism that varies lift characteristics of an intake valve. An idle speed control apparatus has a control section for controlling an intake air amount of the engine in an idle state for adjusting an actual engine speed to a target engine speed. The control section sets a control amount related to control of the intake air amount in correspondence with the lift characteristics, which are varied by the variable valve actuation mechanism. Accordingly, the engine speed in the idle state is effectively controlled in correspondence with changes of the lift characteristics.

    摘要翻译： 发动机具有改变进气门的升程特性的可变气门致动机构。 怠速控制装置具有控制部，该控制部将用于将实际发动机转速调整为目标发动机转速的怠速状态的发动机的进气量进行控制。 控制部根据由可变气门驱动机构变化的升程特性，设定与进气量的控制有关的控制量。 因此，与升降特性的变化对应地有效地控制空转状态下的发动机转速。

    Intake air amount control apparatus and intake air amount control method for internal combustion engines
    9.
    发明授权
    Intake air amount control apparatus and intake air amount control method for internal combustion engines 有权
    进气量控制装置和内燃机的进气量控制方法

    公开(公告)号：US07066145B2

    公开(公告)日：2006-06-27

    申请号：US10921219

    申请日：2004-08-19

    申请人： Akira Hashizume ,  Keizo Hiraku ,  Hirohiko Yamada

    发明人： Akira Hashizume ,  Keizo Hiraku ,  Hirohiko Yamada

    IPC分类号： F02D11/10 ,  F02M25/07 ,  F01L1/34

    CPC分类号： F01L13/0063 ,  F01L1/267 ,  F01L1/3442 ,  F01L13/0015 ,  F01L2105/00 ,  F01L2800/00 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/227 ,  Y02T10/40

    摘要： If a valve timing adjusting mechanism has a problem, an ECU determines whether or not actual valve timing VTa is larger than valve timing advanced angle limit value VTegr. Depending on the determination, the ECU selects a value for target valve operating angle VLt from safety angles including intermediate valve operating angle VLmid and maximum valve operating angle VLmax. Each of the safety angles VLmid, VLmax is a valve operating angle at which engine combustion is stabilized at the current valve timing. With the valve operating angle fixed at the safety angle VLmid or VLmax, a throttle valve controls intake air amount. This prevents the engine combustion from becoming unstable, thus enabling the engine to be operated in an engine safety mode.

    摘要翻译： 如果气门正时调整机构有问题，则ECU判定实际气门正时VTa是否大于气门正时提前角限制值VTegr。 根据判定，ECU从包括中间阀操作角度VLmid和最大阀操作角度VLmax的安全角度选择目标阀操作角度VLt的值。 每个安全角VLmid，VLmax是当前气门正时发动机燃烧稳定的气门操作角度。 当阀门操作角度固定在安全角度VLmid或VLmax时，节流阀控制进气量。 这防止发动机燃烧变得不稳定，从而使得发动机能够在发动机安全模式下操作。