Method and Control Unit for Diagnosing a Valve Lift Adjustment System of an Internal Combustion Engine
    1.
    发明申请
    Method and Control Unit for Diagnosing a Valve Lift Adjustment System of an Internal Combustion Engine 有权
    用于诊断内燃机气门调节系统的方法和控制单元

    公开(公告)号:US20080051972A1

    公开(公告)日:2008-02-28

    申请号:US11843801

    申请日:2007-08-23

    IPC分类号: F02D28/00

    CPC分类号: F02D13/0226 Y02T10/18

    摘要: A method assesses the functional capability of a gas exchange valve lift adjuster of an internal combustion engine as a function of a measure of rotational oscillation amplitudes of a camshaft. The measure of the rotational oscillation amplitudes is formed repeatedly. In a situation in which the gas exchange valve lift adjuster is to change the valve lift, it is checked whether a change in the measure of the rotational oscillation amplitudes occurs. The gas exchange valve lift adjuster is assessed as being functional if a measure for the change is greater than a predetermined threshold value. A control unit is programmed to perform such steps.

    摘要翻译: 一种方法评估内燃机的气体交换阀提升调节器的功能能力作为凸轮轴的旋转振荡幅度的量度的函数。 旋转振荡幅度的测量重复地形成。 在气体更换阀提升调节器改变气门升程的情况下,检查是否发生旋转振动幅度的测量的变化。 如果改变的测量值大于预定的阈值,则评估气体交换阀升程调节器的功能。 编程控制单元执行这些步骤。

    Method and control unit for diagnosing a valve lift adjustment system of an internal combustion engine
    2.
    发明授权
    Method and control unit for diagnosing a valve lift adjustment system of an internal combustion engine 有权
    用于诊断内燃机的气门升程调节系统的方法和控制单元

    公开(公告)号:US07467042B2

    公开(公告)日:2008-12-16

    申请号:US11843801

    申请日:2007-08-23

    IPC分类号: F02D28/00 F02D3/02 G06F19/00

    CPC分类号: F02D13/0226 Y02T10/18

    摘要: A method assesses the functional capability of a gas exchange valve lift adjuster of an internal combustion engine as a function of a measure of rotational oscillation amplitudes of a camshaft. The measure of the rotational oscillation amplitudes is formed repeatedly. In a situation in which the gas exchange valve lift adjuster is to change the valve lift, it is checked whether a change in the measure of the rotational oscillation amplitudes occurs. The gas exchange valve lift adjuster is assessed as being functional if a measure for the change is greater than a predetermined threshold value. A control unit is programmed to perform such steps.

    摘要翻译: 一种方法评估内燃机的气体交换阀提升调节器的功能能力作为凸轮轴的旋转振荡幅度的量度的函数。 旋转振荡幅度的测量重复地形成。 在气体更换阀提升调节器改变气门升程的情况下,检查是否发生旋转振动幅度的测量的变化。 如果改变的测量值大于预定的阈值,则评估气体交换阀升程调节器的功能。 编程控制单元执行这些步骤。

    Method and device for monitoring the functioning of a valve stroke adjusting device of an internal combustion engine during cold starts
    3.
    发明授权
    Method and device for monitoring the functioning of a valve stroke adjusting device of an internal combustion engine during cold starts 有权
    用于在冷启动期间监测内燃机的气门行程调节装置的功能的方法和装置

    公开(公告)号:US07269501B2

    公开(公告)日:2007-09-11

    申请号:US11447936

    申请日:2006-06-07

    IPC分类号: F02D11/10

    摘要: A method and device for monitoring the functionality of a valve stroke adjusting device of an internal combustion engine in a cold start phase. The internal combustion engine includes an electronically controllable throttle, the control utilizing an integral component to control the throttle, and the functionality is monitored by determining the integral component in a cold start phase, comparing the integral component with at least one predetermined threshold value and evaluating the functionality of the valve stroke adjusting device on the basis of the comparison.

    摘要翻译: 一种在冷启动阶段监测内燃机的气门行程调节装置的功能的方法和装置。 所述内燃机包括电子可控制的节流阀,所述控制利用整体部件来控制所述节流阀,并且通过确定冷起动阶段中的积分分量来监测所述功能性,将所述积分分量与至少一个预定阈值进行比较并评估 基于比较的阀行程调节装置的功能。

    Method and device for monitoring the functioning of a valve stroke adjusting device of an internal combustion engine during cold starts
    5.
    发明申请
    Method and device for monitoring the functioning of a valve stroke adjusting device of an internal combustion engine during cold starts 有权
    用于在冷启动期间监测内燃机的气门行程调节装置的功能的方法和装置

    公开(公告)号:US20060283422A1

    公开(公告)日:2006-12-21

    申请号:US11447936

    申请日:2006-06-07

    IPC分类号: F02D11/10

    摘要: A method and device for monitoring the functionality of a valve stroke adjusting device of an internal combustion engine in a cold start phase. The internal combustion engine includes an electronically controllable throttle, the control utilizing an integral component to control the throttle, and the functionality is monitored by determining the integral component in a cold start phase, comparing the integral component with at least one predetermined threshold value and evaluating the functionality of the valve stroke adjusting device on the basis of the comparison.

    摘要翻译: 一种在冷启动阶段监测内燃机的气门行程调节装置的功能的方法和装置。 所述内燃机包括电子可控制的节流阀,所述控制利用整体部件来控制所述节流阀,并且通过确定冷起动阶段中的积分分量来监测所述功能性,将所述积分分量与至少一个预定阈值进行比较并评估 基于比较的阀行程调节装置的功能。