Engine control with operating mode detection
    1.
    发明授权
    Engine control with operating mode detection 有权
    发动机控制与操作模式检测

    公开(公告)号:US06860244B2

    公开(公告)日:2005-03-01

    申请号:US10065681

    申请日:2002-11-08

    摘要: A system and method for detecting an operating mode of an engine or engine component modulate a first engine parameter and analyze a change in a second engine parameter in response to modulating the first engine parameter to detect a current operating mode based on changes in at least one of the first and second engine parameters. In a variable compression ratio (VCR) engine embodiment, the system and method modify ignition timing of at least one cylinder until engine knock is detected and determine whether the cylinder is operating in the lower compression ratio mode or the higher compression ratio mode by comparing the ignition timing change required to cause engine knock to a corresponding threshold.

    摘要翻译: 用于检测发动机或发动机部件的操作模式的系统和方法调节第一发动机参数并且响应于调制第一发动机参数来分析第二发动机参数的变化,以基于至少一个发动机参数的变化来检测当前运行模式 的第一和第二引擎参数。 在可变压缩比(VCR)发动机实施例中,系统和方法修改了至少一个气缸的点火正时,直到检测到发动机爆震,并且通过比较该压缩比模式或较高压缩比模式来确定气缸是否工作 发动机撞击所需的点火正时变化达到相应的阈值。