FUEL INJECTION MEASUREMENT AND DIAGNOSTICS
    4.
    发明申请
    FUEL INJECTION MEASUREMENT AND DIAGNOSTICS 有权
    燃油喷射测量和诊断

    公开(公告)号:US20090254262A1

    公开(公告)日:2009-10-08

    申请号:US12190804

    申请日:2008-08-13

    IPC分类号: F02D41/30

    摘要: A system and method comprises operating an engine during a first cycle to drive a piston in a cylinder without energizing a fuel injector of the cylinder; acquiring first pressure data of the cylinder for a predetermined crank angle window during the first cycle; energizing the fuel injector for an energizing time during a second cycle; acquiring second pressure data of the cylinder for the predetermined crank angle window during the second cycle; calculating a pressure ratio difference average (PRDA) from the first pressure data and the second pressure data; and modifying the operation of the fuel injector based on the PRDA value.

    摘要翻译: 一种系统和方法包括在第一循环期间操作发动机以在气缸中驱动活塞而不使气缸的燃料喷射器通电; 在第一周期期间获取用于预定曲柄角窗口的气缸的第一压力数据; 在第二循环期间给燃料喷射器通电一个通电时间; 在所述第二循环期间获取用于所述预定曲柄角窗口的所述气缸的第二压力数据; 从所述第一压力数据和所述第二压力数据计算压力差平均值(PRDA); 以及基于PRDA值修改燃料喷射器的操作。

    Fuel injection measurement and diagnostics
    8.
    发明授权
    Fuel injection measurement and diagnostics 有权
    燃油喷射测量和诊断

    公开(公告)号:US07904233B2

    公开(公告)日:2011-03-08

    申请号:US12190804

    申请日:2008-08-13

    IPC分类号: G06F17/00

    摘要: A system and method comprises operating an engine during a first cycle to drive a piston in a cylinder without energizing a fuel injector of the cylinder; acquiring first pressure data of the cylinder for a predetermined crank angle window during the first cycle; energizing the fuel injector for an energizing time during a second cycle; acquiring second pressure data of the cylinder for the predetermined crank angle window during the second cycle; calculating a pressure ratio difference average (PRDA) from the first pressure data and the second pressure data; and modifying the operation of the fuel injector based on the PRDA value.

    摘要翻译: 一种系统和方法包括在第一循环期间操作发动机以在气缸中驱动活塞而不使气缸的燃料喷射器通电; 在第一周期期间获取用于预定曲柄角窗口的气缸的第一压力数据; 在第二循环期间给燃料喷射器通电一个通电时间; 在所述第二循环期间获取用于所述预定曲柄角窗口的所述气缸的第二压力数据; 从所述第一压力数据和所述第二压力数据计算压力差平均值(PRDA); 以及基于PRDA值修改燃料喷射器的操作。

    Multi-pulse injection fuel and load balancing control system
    10.
    发明授权
    Multi-pulse injection fuel and load balancing control system 有权
    多脉冲喷射燃料和负载平衡控制系统

    公开(公告)号:US08195379B2

    公开(公告)日:2012-06-05

    申请号:US12686593

    申请日:2010-01-13

    IPC分类号: F02B3/00 F02B3/04

    摘要: A method for adjusting fuel injection quantities in an internal combustion engine configured to operate multi-pulse fuel injections in a cylinder of the engine includes monitoring in-cylinder pressure, determining a burnt fuel mass for main combustion based upon the in-cylinder pressure, determining a burnt fuel mass for post combustion based upon the in-cylinder pressure, determining a main fuel quantity offset based upon the burnt fuel mass for main combustion, determining a post fuel quantity offset based upon the burnt fuel mass for post combustion, and controlling fuel injections into the cylinder based upon the main fuel quantity offset and the post fuel quantity offset.

    摘要翻译: 一种用于调节在发动机气缸中操作多脉冲燃料喷射的内燃机中的燃料喷射量的方法,包括监测缸内压力,基于缸内压力确定用于主燃烧的燃烧燃料质量,确定 基于缸内压力的后燃烧的燃烧燃料质量,基于燃烧的燃烧燃料质量来确定主燃料量偏移,基于用于后燃烧的燃烧燃料质量确定后燃料量偏移,以及控制燃料 基于主燃料量偏移和后燃料量偏移,将气体喷射到气缸中。