Control system and method for low quantity fuel injection
    7.
    发明授权
    Control system and method for low quantity fuel injection 有权
    低量燃油喷射控制系统及方法

    公开(公告)号:US08452520B2

    公开(公告)日:2013-05-28

    申请号:US12791385

    申请日:2010-06-01

    IPC分类号: F02D41/30 G06F17/00

    摘要: A control system for an engine includes a parameter determination module and a period determination module. The parameter determination module determines a first fuel injection parameter based on a rate of change of a quantity of fuel injected during a period, and determines a second fuel injection parameter based on an initial quantity of fuel injected during the period. The period determination module determines a desired fuel injection period based on a desired fuel injection quantity, the first and second fuel injection parameters, and at least one of mass air flow (MAF) rate, intake air temperature (IAT), fuel injector pressure (FIP), engine coolant temperature (ECT), and exhaust gas air/fuel (A/F) ratio.

    摘要翻译: 用于发动机的控制系统包括参数确定模块和周期确定模块。 参数确定模块基于在一段时间内喷射的燃料量的变化率来确定第一燃料喷射参数,并且基于在该时段期间喷射的燃料的初始量来确定第二燃料喷射参数。 周期确定模块基于期望的燃料喷射量,第一和第二燃料喷射参数以及质量空气流量(MAF)速率,进气温度(IAT),燃料喷射器压力(IAT)中的至少一个来确定期望的燃料喷射周期 FIP),发动机冷却液温度(ECT)和废气空气/燃料(A / F)比。

    SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION TO DECREASE PARTICULATE EMISSIONS DURING TRANSIENT ENGINE OPERATION
    8.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION TO DECREASE PARTICULATE EMISSIONS DURING TRANSIENT ENGINE OPERATION 有权
    用于控制燃油喷射以在过渡发动机运行期间减少颗粒物排放的系统和方法

    公开(公告)号:US20120185151A1

    公开(公告)日:2012-07-19

    申请号:US13036282

    申请日:2011-02-28

    IPC分类号: F02D41/04

    摘要: A control system for an engine includes a transient operation detection module, an injection determination module, and an injection control module. The transient operation detection module detects whether the engine is operating in a transient state. The injection determination module, based on an elapsed time since a fuel request and at least one of a plurality of engine operating parameters, at least one of (i) increases a number of fuel injections per combustion cycle to N, and (ii) adjusts periods for each of the fuel injections, wherein N is an integer greater than or equal to two. The injection control module controls fuel injection during the transient state based on at least one of (i) N fuel injections per combustion cycle and (ii) the adjusted periods.

    摘要翻译: 用于发动机的控制系统包括瞬态操作检测模块,喷射确定模块和喷射控制模块。 瞬态运行检测模块检测发动机是否处于过渡状态。 喷射确定模块基于从燃料请求起的经过时间和多个发动机操作参数中的至少一个,至少一个(i)将每个燃烧循环的燃料喷射数量增加到N,并且(ii)调整 每个燃料喷射的周期,其中N是大于或等于2的整数。 喷射控制模块基于每个燃烧循环的(i)N个燃料喷射和(ii)调整的周期中的至少一个来控​​制在过渡状态期间的燃料喷射。

    SYSTEM AND METHOD FOR CONTROLLING A CATALYST TEMPERATURE IN AN HCCI COMBUSTION ENGINE
    9.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING A CATALYST TEMPERATURE IN AN HCCI COMBUSTION ENGINE 有权
    用于控制HCCI燃烧发动机中催化剂温度的系统和方法

    公开(公告)号:US20110016850A1

    公开(公告)日:2011-01-27

    申请号:US12507925

    申请日:2009-07-23

    IPC分类号: F02D43/00 F02B17/00

    摘要: A method and system for controlling an engine includes a homogenous charge compression ignition (HCCI) mode control module that operates an engine in HCCI mode and a condition monitor module that monitors operating conditions of the engine. The control module also includes a condition predictor module that generates a first predicted condition of a catalyst in response to the operating conditions of the engine. A comparison module compares the first predicted condition to a first threshold. A spark injection mode control module operates the engine in a spark injection mode in response to comparing.

    摘要翻译: 用于控制发动机的方法和系统包括在HCCI模式下操作发动机的均质充气压缩点火(HCCI)模式控制模块和监视发动机的运行状况的状态监测模块。 控制模块还包括条件预测器模块,其响应于发动机的操作条件产生催化剂的第一预测条件。 比较模块将第一预测条件与第一阈值进行比较。 火花喷射模式控制模块响应于比较而以火花喷射模式操作发动机。