System and method for controlling fuel injection to decrease particulate emissions during transient engine operation
    33.
    发明授权
    System and method for controlling fuel injection to decrease particulate emissions during transient engine operation 有权
    用于控制燃料喷射的系统和方法,以减少过渡发动机运行期间的颗粒物排放

    公开(公告)号:US08645043B2

    公开(公告)日:2014-02-04

    申请号:US13036282

    申请日:2011-02-28

    IPC分类号: B60T7/12

    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 transient switching between HCCI mode and SI mode of an engine
    34.
    发明授权
    System and method for controlling transient switching between HCCI mode and SI mode of an engine 有权
    用于控制发动机HCCI模式和SI模式之间的瞬态切换的系统和方法

    公开(公告)号:US08322324B2

    公开(公告)日:2012-12-04

    申请号:US12576585

    申请日:2009-10-09

    摘要: A control system and method for operating an engine includes an HCCI mode control module operating an engine in a homogeneous charge compression (HCCI) mode. The control system also includes a difference module determining an actual difference between a desired torque amount and a spark ignition (SI) threshold. An SI mode control module operates the engine in a SI state when the actual difference is above a threshold band. A HCCI mode control module operates the engine in the HCCI mode for a predetermined time when the actual difference is within the torque threshold band. The HCCI mode control module operates the engine in the HCCI mode when the actual difference is below the torque threshold band.

    摘要翻译: 用于操作发动机的控制系统和方法包括以均质充气压缩(HCCI)模式操作发动机的HCCI模式控制模块。 控制系统还包括确定期望转矩量与火花点火(SI)阈值之间的实际差的差分模块。 当实际差异高于阈值频带时,SI模式控制模块以SI状态操作发动机。 当实际差值在扭矩阈值带内时,HCCI模式控制模块在HCCI模式下操作发动机达预定时间。 当实际差值低于转矩阈值带时,HCCI模式控制模块以HCCI模式运行发动机。

    SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION TIMING TO DECREASE EMISSIONS DURING TRANSIENT ENGINE OPERATION
    35.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION TIMING TO DECREASE EMISSIONS DURING TRANSIENT ENGINE OPERATION 有权
    用于控制燃油喷射时间的系统和方法,以减少瞬态发动机运行时的排放

    公开(公告)号:US20120080009A1

    公开(公告)日:2012-04-05

    申请号:US12944044

    申请日:2010-11-11

    IPC分类号: F02M69/04

    摘要: A control system for an engine includes an injection timing adjustment module and an injection control module. The injection timing adjustment module generates an adjusted fuel injection timing when a fuel request is received and the engine is operating in a transient state, wherein the adjusted fuel injection timing is based on a base fuel injection timing, an elapsed time since the fuel request, and at least one of a plurality of engine operating parameters. The injection control module controls fuel injection based on the adjusted fuel injection timing for a period, and controls fuel injection based on the base fuel injection timing after the period.

    摘要翻译: 用于发动机的控制系统包括喷射定时调节模块和喷射控制模块。 喷射定时调整模块在接收到燃料请求并且发动机在过渡状态下运行时产生调节后的燃料喷射正时,其中调整后的燃料喷射正时基于基本燃料喷射正时,燃料请求之后的经过时间, 以及多个发动机操作参数中的至少一个。 喷射控制模块基于经过调节的燃料喷射正时控制一段时间的燃料喷射,并且在该时间段之后控制基于燃料喷射正时的燃料喷射。

    CONTROL SYSTEM AND METHOD FOR LOW QUANTITY FUEL INJECTION
    36.
    发明申请
    CONTROL SYSTEM AND METHOD FOR LOW QUANTITY FUEL INJECTION 有权
    低数量燃油喷射控制系统及方法

    公开(公告)号:US20110295488A1

    公开(公告)日:2011-12-01

    申请号:US12791385

    申请日:2010-06-01

    IPC分类号: F02D41/30

    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。