Engine Combustion Control Using Ion Sense Feedback
    41.
    发明申请
    Engine Combustion Control Using Ion Sense Feedback 有权
    使用离子感测反馈的发动机燃烧控制

    公开(公告)号:US20100057327A1

    公开(公告)日:2010-03-04

    申请号:US12202231

    申请日:2008-08-30

    IPC分类号: F02D45/00

    摘要: A system and method for operating an engine having at least two spark plugs per cylinder include controlling at least one actuator to alter combustion within a selected cylinder such that the combustion burn rate determined by ion sense current signals associated with the at least two spark plugs of the selected cylinder approaches a desired combustion burn rate. A desired combustion burn rate is determined based on current engine/vehicle operating and ambient conditions with ion sense signals from each spark plug analyzed to determine combustion timing relative to corresponding ignition timing. Ignition timing and/or other actuators are controlled in response to provide a desired combustion burn rate.

    摘要翻译: 用于操作具有每个气缸的至少两个火花塞的发动机的系统和方法包括:控制至少一个致动器以改变所选气缸内的燃烧,使得由与所述至少两个火花塞相关联的离子感测电流信号确定的燃烧燃烧速率 所选择的气缸接近期望的燃烧燃烧速率。 基于目前的发动机/车辆操作和环境条件来确定期望的燃烧燃烧速率,其中分析了来自每个火花塞的离子感测信号,以确定相对于对应的点火正时的燃烧定时。 响应于提供期望的燃烧燃烧速率来控制点火正时和/或其它致动器。

    Method and system for pre-ignition control
    46.
    发明授权
    Method and system for pre-ignition control 有权
    预燃控制方法和系统

    公开(公告)号:US08406984B2

    公开(公告)日:2013-03-26

    申请号:US13344546

    申请日:2012-01-05

    IPC分类号: F02D41/26

    摘要: Methods and systems are provided for addressing cylinder-to-cylinder imbalances in the incidence of pre-ignition and/or knock. Engine cylinders are fueled based on each cylinder's pre-ignition count to balance the incidence of pre-ignition in each cylinder. The fueling is adjusted to maintain engine exhaust at stoichiometry.

    摘要翻译: 提供了方法和系统,用于解决预点火和/或爆震的发生中的气缸与气缸不平衡。 发动机气缸基于每个气缸的预燃计数进行燃料,以平衡每个气缸中预点火的发生。 调整燃油以维持发动机排气的化学计量。