Control for an internal-combustion engine
    1.
    发明授权
    Control for an internal-combustion engine 有权
    内燃机控制

    公开(公告)号:US07877192B2

    公开(公告)日:2011-01-25

    申请号:US12222790

    申请日:2008-08-15

    IPC分类号: G06F19/00 G06G7/70

    摘要: A rotational speed parameter is detected in accordance with a rotational speed of the engine. A reference value of the rotational speed parameter is calculated. For each cylinder, an error between the reference value and the rotational speed parameter detected every predetermined crank angle is calculated as a relative speed parameter. For each cylinder, an integrated value is calculated by integrating the relative speed parameters over a predetermined period. For each cylinder, an average value per cylinder of the sum of the integrated values of all the cylinders is calculated. For each cylinder, an error between the integrated value of the cylinder and the average value is calculated. For each cylinder, the output of the engine is controlled in accordance with the error calculated for the cylinder such that variations in the output between the cylinders are suppressed.

    摘要翻译: 根据发动机的转速来检测转速参数。 计算转速参数的基准值。 对于每个气缸,计算每个预定曲轴角度的参考值和旋转速度参数之间的误差作为相对速度参数。 对于每个气缸,通过在预定时间段内积分相对速度参数来计算积分值。 对于每个气缸,计算所有气缸的积分值之和的每缸的平均值。 对于每个气缸,计算气缸的积分值与平均值之间的误差。 对于每个气缸,根据针对气缸计算的误差来控制发动机的输出,从而抑制气缸之间输出的变化。

    Control for an internal-combustion engine
    2.
    发明申请
    Control for an internal-combustion engine 有权
    内燃机控制

    公开(公告)号:US20090064967A1

    公开(公告)日:2009-03-12

    申请号:US12222790

    申请日:2008-08-15

    IPC分类号: F02D43/00 F02D13/02 F02P5/152

    摘要: A rotational speed parameter is detected in accordance with a rotational speed of the engine. A reference value of the rotational speed parameter is calculated. For each cylinder, an error between the reference value and the rotational speed parameter detected every predetermined crank angle is calculated as a relative speed parameter. For each cylinder, an integrated value is calculated by integrating the relative speed parameters over a predetermined period. For each cylinder, an average value per cylinder of the sum of the integrated values of all the cylinders is calculated. For each cylinder, an error between the integrated value of the cylinder and the average value is calculated. For each cylinder, the output of the engine is controlled in accordance with the error calculated for the cylinder such that variations in the output between the cylinders are suppressed.

    摘要翻译: 根据发动机的转速来检测转速参数。 计算转速参数的基准值。 对于每个气缸,计算每个预定曲轴角度的参考值和旋转速度参数之间的误差作为相对速度参数。 对于每个气缸,通过在预定时间段内积分相对速度参数来计算积分值。 对于每个气缸,计算所有气缸的积分值之和的每缸的平均值。 对于每个气缸,计算气缸的积分值与平均值之间的误差。 对于每个气缸,根据针对气缸计算的误差来控制发动机的输出,从而抑制气缸之间输出的变化。

    Determination of abnormality of an intake air system of an internal-combustion engine
    3.
    发明授权
    Determination of abnormality of an intake air system of an internal-combustion engine 有权
    确定内燃机进气系统的异常情况

    公开(公告)号:US07953529B2

    公开(公告)日:2011-05-31

    申请号:US12007962

    申请日:2008-01-17

    IPC分类号: G01M17/00

    摘要: The present invention provides a scheme for determining an abnormality of an intake air system with higher accuracy in an engine an intake air amount is controlled by adjusting a lift amount of an intake valve. A throttle opening area is determined based on a current intake air amount. A feedback correction is performed on the throttle opening area. The feedback correction includes determining a correction amount of the throttle opening area such that the gauge pressure inside the intake manifold converges to a desired gauge pressure and then adding the correction amount to the throttle opening area. A feedback control is performed on an air-fuel ratio. The feedback control includes determining a correction amount of the air-fuel ratio based on a detection value of an air-fuel ratio detecting means provided in an exhaust manifold. An abnormality of the intake air system is determined during an idling operation based on the correction amount of the throttle opening area and the correction amount of the air-fuel ratio.

    摘要翻译: 本发明提供了一种用于在发动机中以更高精度确定进气系统的异常的方案,通过调节进气门的升程量来控制进气量。 基于当前进气量确定节气门开度面积。 在节气门开度区域进行反馈校正。 反馈校正包括确定节气门开度区域的校正量,使得进气歧管内的表压收敛到期望的表压,然后将校正量加到节气门开度区域。 对空燃比进行反馈控制。 反馈控制包括基于设置在排气歧管中的空燃比检测装置的检测值来确定空燃比的校正量。 基于节气门开度面积的校正量和空燃比的校正量,在怠速运转中确定进气系统的异常。

    Determination of abnormality of an intake air system of an internal-combustion engine
    4.
    发明申请
    Determination of abnormality of an intake air system of an internal-combustion engine 有权
    确定内燃机进气系统的异常情况

    公开(公告)号:US20080189007A1

    公开(公告)日:2008-08-07

    申请号:US12007962

    申请日:2008-01-17

    IPC分类号: G01M15/04 F02D35/02

    摘要: The present invention provides a scheme for determining an abnormality of an intake air system with higher accuracy in an engine an intake air amount is controlled by adjusting a lift amount of an intake valve. A throttle opening area is determined based on a current intake air amount. A feedback correction is performed on the throttle opening area. The feedback correction includes determining a correction amount of the throttle opening area such that the gauge pressure inside the intake manifold converges to a desired gauge pressure and then adding the correction amount to the throttle opening area. A feedback control is performed on an air-fuel ratio. The feedback control includes determining a correction amount of the air-fuel ratio based on a detection value of an air-fuel ratio detecting means provided in an exhaust manifold. An abnormality of the intake air system is determined during an idling operation based on the correction amount of the throttle opening area and the correction amount of the air-fuel ratio.

    摘要翻译: 本发明提供了一种用于在发动机中以更高精度确定进气系统的异常的方案,通过调节进气门的升程量来控制进气量。 基于当前进气量确定节气门开度面积。 在节气门开度区域进行反馈校正。 反馈校正包括确定节气门开度区域的校正量,使得进气歧管内的表压收敛到期望的表压,然后将校正量加到节气门开度区域。 对空燃比进行反馈控制。 反馈控制包括基于设置在排气歧管中的空燃比检测装置的检测值来确定空燃比的校正量。 基于节气门开度面积的校正量和空燃比的校正量,在怠速运转中确定进气系统的异常。

    CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE
    5.
    发明申请
    CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制系统及方法

    公开(公告)号:US20100175646A1

    公开(公告)日:2010-07-15

    申请号:US12645960

    申请日:2009-12-23

    IPC分类号: F01L1/34 F01M1/06 F02D43/00

    摘要: A control system for an internal combustion engine, which is capable of preventing a variable valve-operating mechanism from suffering problems due to insufficiency of lubrication oil immediately after starting the engine. The ECU of the engine determines an amount of lubrication oil lubricating the variable valve-operating mechanism which is capable of continuously changing an intake lift, holds the intake lift at a predetermined lift if it is determined that the oil amount is less than a predetermined amount, and controls the amount of intake air by changing the opening of a throttle valve capable of adjusting the amount of intake air, when the operation of the variable valve-operating mechanism is inhibited.

    摘要翻译: 一种用于内燃机的控制系统,其能够防止可变气门操作机构在启动发动机之后立即因润滑油不足而遭受问题。 发动机的ECU确定润滑可变气门操作机构的润滑油的量,其能够连续改变进气升程,如果确定油量小于预定量,则将进气升程保持在预定升程 并且当禁止可变气门操作机构的操作时,通过改变能够调节进气量的节气门的开度来控制进气量。

    INTAKE AIR AMOUNT CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    INTAKE AIR AMOUNT CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开
    采用空中控制系统和内燃机的方法

    公开(公告)号:US20100161202A1

    公开(公告)日:2010-06-24

    申请号:US12631452

    申请日:2009-12-04

    IPC分类号: F02D41/00 F01L1/34 F02M35/10

    摘要: An intake air amount control system for an internal combustion engine, which is capable of reducing energy for driving a variable intake lift mechanism, and properly controlling an intake air amount during an auto cruise operation. The intake air amount control system for the engine holds a lift of an intake valve at a predetermined lift by holding a target lift at the predetermined lift when it is determined that a vehicle is in the auto cruise operation. This reduces energy required for an intake lift actuator which drives the variable intake lift mechanism, and suppresses heat generated by a motor of the intake lift actuator. Further, during the auto cruise operation, by changing a throttle valve opening, the intake air amount is properly controlled.

    摘要翻译: 一种用于内燃机的进气量控制系统,其能够减少用于驱动可变进气提升机构的能量,并且在自动巡航操作期间适当地控制进气量。 当确定车辆处于自动巡航操作时,用于发动机的进气量控制系统通过将目标升程保持在预定升程处,将进气门的升程保持在预定升程。 这降低了驱动可变进气提升机构的进气提升致动器所需的能量,并且抑制了进气提升致动器的电动机产生的热量。 此外,在自动巡航操作期间,通过改变节气门开度,适当地控制进气量。

    Intake air control of an internal combustion engine
    8.
    发明申请
    Intake air control of an internal combustion engine 失效
    内燃机进气控制

    公开(公告)号:US20080189026A1

    公开(公告)日:2008-08-07

    申请号:US12007354

    申请日:2008-01-09

    IPC分类号: F02D41/00

    摘要: The present invention provides an intake air control capable of implementing a highly accurate constant negative pressure control with a smaller number of process steps under various environments. The intake air control is applicable to an engine having a variable valve actuation mechanism for adjusting at least a lift amount of an intake valve to control an intake air amount and a throttle valve for keeping a gauge pressure in an intake manifold at a desired gauge pressure. A reference throttle opening area is determined by referring to a first table based on a desired intake air amount. The first table defines a relation between an intake air amount and a throttle opening area under a reference gauge pressure, a reference atmospheric pressure and a reference intake air temperature. A throttle opening area for achieving the desired gauge pressure is determined by correcting the reference throttle opening area with a correction parameter derived based on the Bernoulli's law by using the desired gauge pressure, a current atmospheric pressure and a current intake air temperature.

    摘要翻译: 本发明提供一种能够在各种环境下实施具有较少数量的处理步骤的高精度恒定负压控制的进气控制。 进气控制适用于具有用于调节至少进气门的提升量以控制进气量的可变气门致动机构的发动机和用于将进气歧管中的表压保持在所需表压下的节流阀 。 基于期望的进气量参照第一台确定参考节气门开度面积。 第一表定义了在参考表压,参考大气压和参考进气温度下进气量和节气门开度面积之间的关系。 通过使用所需的表压,当前大气压和当前的进气温度,通过基于伯努利定律导出的校正参数校正参考节气门开度面积来确定用于实现所需表压的节气门开度面积。

    Control for an internal-combustion engine
    9.
    发明授权
    Control for an internal-combustion engine 失效
    内燃机控制

    公开(公告)号:US07801667B2

    公开(公告)日:2010-09-21

    申请号:US12232097

    申请日:2008-09-10

    摘要: A control for an engine having a variable valve actuation mechanism is provided. A map indicating a correlation among a rotational speed, a gauge pressure of an intake manifold, a lift amount of an intake valve, a phase of the intake valve and an intake air amount of the engine under a reference condition of a predetermined reference atmospheric pressure and a predetermined reference intake air temperature is defined. An intake air amount for the reference condition is determined as a reference intake air amount by referring to the map based on a current rotational speed, a current gauge pressure, a current lift amount and a current phase. The reference intake air amount is corrected with a ratio between an air density under a current condition of a current atmospheric pressure, a current intake air temperature and a current gauge pressure and an air density under the reference condition to calculate an intake air amount for the current condition.

    摘要翻译: 提供了一种具有可变气门致动机构的发动机控制装置。 在规定的基准大气压的基准条件下,表示转速,进气歧管的表压,进气门的升程量,进气门的相位和发动机的进气量之间的相关性的映射 并且限定了预定的参考进气温度。 基于目前的转速,当前的表压,当前的提升量,以及当前的相位,通过参照地图来确定基准状态的进气量作为基准进气量。 参考进气量用当前大气压,当前进气温度和当前表压之间的空气密度与基准条件下的空气密度之间的比率进行校正,以计算出 当前的状况。

    Intake air control system for internal combustion engine
    10.
    发明授权
    Intake air control system for internal combustion engine 失效
    内燃机进气控制系统

    公开(公告)号:US07770558B2

    公开(公告)日:2010-08-10

    申请号:US12010175

    申请日:2008-01-22

    IPC分类号: F02D13/00 F02D13/04

    摘要: An intake air control system for an internal combustion engine having at least one intake valve and a valve operating characteristic varying mechanism which continuously varies a lift amount of the at least one intake valve of the engine. A target intake air flow rate of the engine is calculated along with a command value of the lift amount according to a target engine rotational speed set in an idling condition of the engine and the target intake air flow rate when the engine is determined to be in an idling condition. The valve operating characteristic varying mechanism is controlled according to the calculated lift amount command value.

    摘要翻译: 一种用于内燃机的进气控制系统,其具有连续地改变发动机的至少一个进气门的升程量的至少一个进气门和阀操作特性变化机构。 发动机的目标进气流量随着发动机空转状态下设定的目标发动机转速和当发动机确定为目标发动机的目标进气流量时的提升量的指令值一起被计算 空转条件。 阀操作特性变化机构根据计算的升程量指令值进行控制。