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92 条记录 (耗时 0.021 秒)

    Control apparatus for multi-cylinder internal combustion engine and control method
    1.
    发明授权
    Control apparatus for multi-cylinder internal combustion engine and control method 有权
    多缸内燃机控制装置及控制方法

    公开(公告)号：US07398772B2

    公开(公告)日：2008-07-15

    申请号：US11633035

    申请日：2006-12-04

    申请人： Yukihiro Nakasaka ,  Toshiaki Asada ,  Naohide Fuwa ,  Shinji Sadakane

    发明人： Yukihiro Nakasaka ,  Toshiaki Asada ,  Naohide Fuwa ,  Shinji Sadakane

    IPC分类号： F02D41/00

    CPC分类号： F02D41/0085 ,  F01L1/053 ,  F01L1/34 ,  F01L9/04 ,  F01L13/0036 ,  F01L13/0042 ,  F01L2800/00 ,  F02D13/023 ,  F02D13/0238 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/1405 ,  F02D41/1458 ,  F02D41/2441 ,  F02D41/2454 ,  F02D41/2464 ,  F02D41/2467 ,  F02D41/40 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/0402 ,  Y02T10/18 ,  Y02T10/42

    摘要： A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor so as to minimize a variation in an fuel injection quantity between the plurality of cylinders by that exhaust gas air-fuel ratio. That is, the exhaust gas air-fuel ratio of the plurality of cylinders, in which the valve opening characteristics of the intake valve and an exhaust valve are set such that the intake air amount to be introduced into the plurality of cylinders is limited by the opening amount of a throttle valve, for example, and not limited by the valve opening characteristics of the intake valve or the exhaust valve is calculated, and the variation in the fuel injection quantity among the plurality of cylinders is then reduced by that exhaust gas air-fuel ratio. Then, the variation in valve opening characteristics among the cylinders is reduced.

    摘要翻译： 控制装置基于从空气调节装置输出的值，计算多个气缸的排气空燃比，其中进气门的操作角度被设定为预定的操作角度，例如最大操作角度， 燃料比传感器，以便通过该排气空燃比使多个气缸之间的燃料喷射量的变化最小化。 也就是说，其中进气门和排气门的开阀特性被设定为使得被引入多个气缸的进气量被限制在多个气缸中的排气空燃比被 计算节气门的打开量，例如不受进气门或排气门的开阀特性的限制，然后通过排气气体减少多个气缸中的燃料喷射量的变化 - 燃料比。 然后，气缸中的开阀特性的变化减小。

    Control device and method for variable valve mechanism
    8.
    发明授权
    Control device and method for variable valve mechanism 有权
    可变气门机构的控制装置及方法

    公开(公告)号：US07690339B2

    公开(公告)日：2010-04-06

    申请号：US11713750

    申请日：2007-03-05

    申请人： Naohide Fuwa ,  Masashi Kishimoto

    发明人： Naohide Fuwa ,  Masashi Kishimoto

    IPC分类号： F01L1/34

    CPC分类号： F01L13/0063 ,  F01L1/34 ,  F01L1/34403 ,  F01L1/352 ,  F01L13/0015 ,  F01L13/0031 ,  F01L2013/0073

    摘要： A variable valve timing and lift mechanism includes an actuator that adjusts the period in which an intake valve is held open by moving a drive element. When a control unit switches the duration, the control unit controls the actuator so that the duration is changed at a first speed when the duration is equal to a first value, and at a second speed when the duration is equal to a second value that is smaller than the first value. The absolute value of the second speed is smaller than the absolute value of the first speed. In effect, the actuator is controlled so that when the duration is in a short-duration range, the duration changes more slowly than when the duration is in a long-duration range.

    摘要翻译： 可变气门正时和提升机构包括致动器，其通过移动驱动元件来调节进气门保持打开的时段。 当控制单元切换持续时间时，控制单元控制致动器，使得持续时间在持续时间等于第一值时以第一速度改变持续时间，并且当持续时间等于第二值时 小于第一个值。 第二速度的绝对值小于第一速度的绝对值。 实际上，致动器被控制，使得当持续时间处于短持续时间范围时，持续时间变化比持续时间长于持续时间范围的变化更慢。

    Control device and method for variable valve mechanism
    9.
    发明授权
    Control device and method for variable valve mechanism 有权
    可变气门机构的控制装置及方法

    公开(公告)号：US07685978B2

    公开(公告)日：2010-03-30

    申请号：US11646272

    申请日：2006-12-28

    申请人： Naohide Fuwa ,  Takashi Yanagizawa

    发明人： Naohide Fuwa ,  Takashi Yanagizawa

    IPC分类号： F01L1/34

    CPC分类号： F01L13/0063 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/344 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  F02D13/0207 ,  Y02T10/18

    摘要： A control device for a variable valve mechanism that avoids the overheating an actuator while reducing adverse effects on the driveability of a vehicle. The actuator adjusts the lift of an intake valve by moving a drive element, and a sensor is used to determine whether the actuator will overheat. A control unit stops the drive element if the lift adjusted by the actuator is equal to or larger than a first predetermined value, when the control unit determines that the actuator will overheat. The actuator may be an electric actuator. In this case, the actuator maintains the drive element in a fixed position when supply of electric power to the actuator is interrupted. The control unit stops the drive element, and interrupts the supply of electric power to the actuator.

    摘要翻译： 一种用于可变气门机构的控制装置，其避免了致动器的过热，同时减少对车辆的驾驶能力的不利影响。 致动器通过移动驱动元件来调节进气阀的升程，并且使用传感器来确定执行器是否会过热。 如果由致动器调节的升程等于或大于第一预定值，则控制单元停止驱动元件，当控制单元确定致动器将过热时。 致动器可以是电致动器。 在这种情况下，当致动器的电力供应中断时，致动器将驱动元件保持在固定位置。 控制单元停止驱动元件，并中断对致动器的电力供应。

    Failure diagnostic apparatus for variable valve mechanism of internal combustion engine and failure diagnostic method for variable valve mechanism
    10.
    发明授权
    Failure diagnostic apparatus for variable valve mechanism of internal combustion engine and failure diagnostic method for variable valve mechanism 失效
    内燃机可变气门机构故障诊断装置及可变气门机构故障诊断方法

    公开(公告)号：US07424872B2

    公开(公告)日：2008-09-16

    申请号：US11035078

    申请日：2005-01-14

    申请人： Naohide Fuwa ,  Harufumi Muto

    发明人： Naohide Fuwa ,  Harufumi Muto

    IPC分类号： F01L1/34

    CPC分类号： F01L13/0063 ,  F01L1/185 ,  F01L13/0005 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2800/12 ,  F01L2820/033 ,  F01L2820/041 ,  F01L2820/042

    摘要： A failure diagnosis for a slide sensor of a variable valve mechanism is performed when a valve working angle is at a value in the initial state. The initial state is set to a valve characteristic state where the valve working angle is at the maximum value. The maximum valve working angle corresponds to the refuge running performable region in which an engine can be started and refuge running can be performed. Therefore, even when it is difficult to adjust the valve working angle using rotation of a spiral cam due to a failure in the slide sensor, the refuge running can be performed only by maintaining the initial state by maintaining control. It is thus possible to increase reliability of the refuge running in the case where a failure has occurred in the variable valve mechanism.

    摘要翻译： 当阀工作角度处于初始状态的值时，执行可变气门机构的滑动传感器的故障诊断。 初始状态被设定为阀工作角为最大值的阀特性状态。 最大阀工作角度对应于能够启动发动机并可进行避难运行的避难所运行区域。 因此，即使由于滑动传感器的故障而难以通过螺旋凸轮的旋转来调节阀的工作角度，所以只能通过维持控制来维持初始状态来进行避难运行。 因此，在可变气门机构发生故障的情况下，可以提高避难运行的可靠性。