System and method to reduce stall during deceleration fuel shut off
    2.
    发明授权
    System and method to reduce stall during deceleration fuel shut off 有权
    减速时关闭减速器的系统和方法

    公开(公告)号:US07572204B2

    公开(公告)日:2009-08-11

    申请号:US11317397

    申请日:2005-12-22

    IPC分类号: B60W10/06 B60W10/18

    摘要: A method of controlling fuel injection in an engine of a vehicle having an anti-lock braking system comprises under conditions of degraded operation of an anti-lock braking system, restricting deactivation of the fuel injection during deceleration vehicle operating conditions. According to another aspect, the method comprises under conditions where the anti-lock braking system is functioning, disabling fuel injection during at least some deceleration operations; and under conditions of degraded operation of the anti-lock braking system, restricting deactivation of the fuel injection during deceleration vehicle operating conditions. By considering the functioning of an ABS, it is possible to deactivate fuel injection during some deceleration operations during one condition to realize fuel economy gains and disable the deactivation of fuel injection at another condition to reduce engine stalls. Thus, the deceleration fuel shut off strategy may be used aggressively for improved fuel economy.

    摘要翻译: 在具有防抱死制动系统的车辆的发动机中控制燃料喷射的方法包括在防抱死制动系统的运行恶化的条件下,限制在减速车辆操作条件期间燃料喷射的停止。 根据另一方面,该方法包括在防抱死制动系统工作的条件下,在至少一些减速操作期间禁止燃料喷射; 并且在防抱死制动系统的运行恶化的条件下,限制在减速车辆运行条件期间燃料喷射的停止。 通过考虑ABS的功能,可以在一个条件下的一些减速操作期间停用燃料喷射以实现燃料经济性增益,并且在另一条件下禁用燃料喷射的停用以减少发动机停止。 因此,可以积极地使用减速燃料切断策略来提高燃油经济性。

    SYSTEM AND METHOD FOR REDUCING NOx EMISSIONS IN AN APPARATUS HAVING A DIESEL ENGINE
    3.
    发明申请
    SYSTEM AND METHOD FOR REDUCING NOx EMISSIONS IN AN APPARATUS HAVING A DIESEL ENGINE 有权
    用于在具有柴油发动机的装置中减少NOx排放的系统和方法

    公开(公告)号:US20080264040A1

    公开(公告)日:2008-10-30

    申请号:US12172352

    申请日:2008-07-14

    IPC分类号: F01N9/00

    摘要: In a mechanical apparatus having a diesel engine including a combustion chamber, the mechanical apparatus also having an aftertreatment device configured to treat emissions from the diesel engine and an intake valve for passing air into the combustion chamber, a method of operating the engine is disclosed, wherein the method includes performing at least one combustion in the combustion chamber at a first intake valve closure timing, determining a temperature of the aftertreatment device, and if the temperature of the aftertreatment device is equal to or below a preselected temperature threshold, then performing at least one combustion in the combustion chamber at a second intake valve closure timing to thereby increase the temperature of exhaust emitted by the diesel engine.

    摘要翻译: 在具有包括燃烧室的柴油发动机的机械设备中,机械设备还具有配置成处理来自柴油发动机的排放物的后处理装置和用于使空气进入燃烧室的进气阀,公开了一种操作发动机的方法, 其中所述方法包括在第一进气门关闭时刻在燃烧室中进行至少一次燃烧,确定后处理装置的温度,以及如果后处理装置的温度等于或低于预选温度阈值,则在 在第二进气门关闭时刻在燃烧室中进行至少一次燃烧,从而提高柴油发动机排放的排气温度。

    System and method to reduce stall during deceleration fuel shut off
    4.
    发明申请
    System and method to reduce stall during deceleration fuel shut off 有权
    减速时关闭减速器的系统和方法

    公开(公告)号:US20070149358A1

    公开(公告)日:2007-06-28

    申请号:US11317397

    申请日:2005-12-22

    IPC分类号: B60W10/04

    摘要: A method of controlling fuel injection in an engine of a vehicle having an anti-lock braking system comprises under conditions of degraded operation of an anti-lock braking system, restricting deactivation of the fuel injection during deceleration vehicle operating conditions. According to another aspect, the method comprises under conditions where the anti-lock braking system is functioning, disabling fuel injection during at least some deceleration operations; and under conditions of degraded operation of the anti-lock braking system, restricting deactivation of the fuel injection during deceleration vehicle operating conditions. By considering the functioning of an ABS, it is possible to deactivate fuel injection during some deceleration operations during one condition to realize fuel economy gains and disable the deactivation of fuel injection at another condition to reduce engine stalls. Thus, the deceleration fuel shut off strategy may be used aggressively for improved fuel economy.

    摘要翻译: 在具有防抱死制动系统的车辆的发动机中控制燃料喷射的方法包括在防抱死制动系统的运行恶化的条件下,限制在减速车辆操作条件期间燃料喷射的停止。 根据另一方面,该方法包括在防抱死制动系统工作的条件下,在至少一些减速操作期间禁止燃料喷射; 并且在防抱死制动系统的运行恶化的条件下,限制在减速车辆运行条件期间燃料喷射的停止。 通过考虑ABS的功能,可以在一个条件下的一些减速操作期间停用燃料喷射以实现燃料经济性增益,并且在另一条件下禁用燃料喷射的停用以减少发动机停止。 因此,可以积极地使用减速燃料切断策略来提高燃油经济性。

    System and method for reducing NOx emissions in an apparatus having a diesel engine
    5.
    发明授权
    System and method for reducing NOx emissions in an apparatus having a diesel engine 有权
    具有柴油发动机的装置中用于减少NOx排放的系统和方法

    公开(公告)号:US07204227B2

    公开(公告)日:2007-04-17

    申请号:US11154055

    申请日:2005-06-15

    IPC分类号: F02B3/00 F01N3/00

    摘要: In a mechanical apparatus having a diesel engine including a combustion chamber, an intake valve for passing air into the combustion chamber, and an exhaust valve for passing exhaust from the chamber, the mechanical apparatus also having an aftertreatment device configured to treat emissions from the diesel engine, a method of operating the engine is disclosed, wherein the method includes performing at least one combustion in the combustion chamber with a first quantity of fuel, determining a temperature of the aftertreatment device, and if the temperature of the aftertreatment device is equal to or below a preselected temperature threshold, then performing at least one combustion in the combustion chamber with a second, greater quantity of fuel and varying at least one of an intake valve timing and an exhaust valve timing relative to a default valve timing to cause at least one of a compression loss and a pumping loss.

    摘要翻译: 在具有柴油发动机的机械设备中,该柴油发动机包括燃烧室,用于使空气进入燃烧室的进气阀和用于使来自该室的排气的排气阀,该机械设备还具有配置成处理来自柴油的排放物的后处理装置 发动机,公开了一种操作发动机的方法,其中该方法包括在第一燃料量的燃烧室中进行至少一次燃烧,确定后处理装置的温度,以及如果后处理装置的温度等于 或低于预选温度阈值,然后在第二更大量的燃料中对燃烧室中的至少一次燃烧进行改变,并相对于默认气门正时改变进气门正时和排气门正时中的至少一个,至少引起 压缩损耗和泵送损耗之一。

    Secondary airflow system for engine exhaust emission diagnostics
    7.
    发明申请
    Secondary airflow system for engine exhaust emission diagnostics 有权
    用于发动机废气排放诊断的二次气流系统

    公开(公告)号:US20060025919A1

    公开(公告)日:2006-02-02

    申请号:US10901570

    申请日:2004-07-28

    IPC分类号: G06F7/00

    摘要: In one example, a system for an engine having an intake system and an exhaust system is described. The system comprises: an airflow sensor coupled to the intake system; an air pump having at least an inlet side and an outlet side, said inlet side having a first coupling to the intake system downstream of said airflow sensor, said outlet side having a second coupling to the exhaust system; and a controller coupled to the engine, said controller, during operation, identifying whether degradation has occurred to at least one of said first and second couplings, and providing an indication of said identified degradation. Various other examples are also disclosed.

    摘要翻译: 在一个示例中,描述了具有进气系统和排气系统的发动机系统。 该系统包括:耦合到进气系统的气流传感器; 至少具有入口侧和出口侧的空气泵,所述入口侧具有与所述气流传感器下游的进气系统的第一联接,所述出口侧具有与所述排气系统的第二联接; 以及控制器,其耦合到所述发动机,所述控制器在操作期间,识别所述第一和第二耦合中的至少一个是否已经发生劣化,以及提供所述识别的退化的指示。 还公开了各种其它实例。

    Engine system and method accounting for engine misfire
    8.
    发明申请
    Engine system and method accounting for engine misfire 有权
    发动机系统和方法说明发动机失火

    公开(公告)号:US20050193987A1

    公开(公告)日:2005-09-08

    申请号:US10794510

    申请日:2004-03-05

    申请人: Jeff Doering

    发明人: Jeff Doering

    IPC分类号: F02B19/00 F02M51/00

    CPC分类号: F02D17/02 F02M63/0205

    摘要: Various systems and methods are disclosed for carrying out combustion in a fuel-cut operation in some or all of the engine cylinders of a vehicle. Further, various subsystems are considered, such as fuel vapor purging, air-fuel ratio control, engine torque control, catalyst design, and exhaust system design.

    摘要翻译: 公开了用于在车辆的一些或所有发动机气缸中的燃料切断操作中进行燃烧的各种系统和方法。 此外,考虑了各种子系统,例如燃料蒸气吹扫,空燃比控制,发动机转矩控制,催化剂设计和排气系统设计。