Method and apparatus for controlling combustion noise in an internal combustion engine
    1.
    发明授权
    Method and apparatus for controlling combustion noise in an internal combustion engine 有权
    用于控制内燃机中的燃烧噪声的方法和装置

    公开(公告)号:US09267451B2

    公开(公告)日:2016-02-23

    申请号:US13245903

    申请日:2011-09-27

    摘要: An internal combustion engine operates in a homogeneous-charge compression-ignition combustion mode. A method for controlling the internal combustion engine in response to a fast transient event from a low-load state to a high-load state includes operating the engine with a negative valve overlap between an intake valve and an exhaust valve, and determining a preferred combustion phasing responsive to the high-load state. A preferred EGR mass and a preferred intake valve timing corresponding to the preferred combustion phasing are determined. A first intake valve timing is determined in response to a difference between the preferred EGR mass and an actual EGR mass. The intake valve timing is controlled in response to a difference between the preferred intake valve timing and the first intake valve timing.

    摘要翻译: 内燃机以均质充气压缩点火燃烧模式运转。 用于响应于从低负载状态到高负载状态的快速瞬变事件来控制内燃机的方法包括在进气门和排气阀之间以负气门重叠操作发动机,并且确定优选燃烧 响应高负载状态的定相。 确定对应于优选燃烧定相的优选EGR质量和优选进气门正时。 响应于优选EGR质量和实际EGR质量之间的差异来确定第一进气门正时。 响应于优选进气门正时和第一进气门正时之间的差来控制进气门正时。

    METHOD FOR COMBUSTION MODE TRANSITION
    3.
    发明申请
    METHOD FOR COMBUSTION MODE TRANSITION 有权
    燃烧模式转换的方法

    公开(公告)号:US20130087110A1

    公开(公告)日:2013-04-11

    申请号:US13267029

    申请日:2011-10-06

    IPC分类号: F01L1/34

    摘要: An internal combustion engine is selectably operable in one of homogeneous charge compression ignition (HCCI) mode with low lift intake and exhaust valve profiles and spark ignition (SI) mode with high lift intake and exhaust valve profiles. Transition from a current combustion mode to a desired combustion mode includes phase adjusting the one of the intake and exhaust valves exhibiting a greater effect upon an effective cylinder volume for a given phase adjustment in the desired combustion mode based upon a desired phasing for the desired combustion mode prior to lift adjusting the one of the intake and exhaust valves and adjusting the other of the intake and exhaust valves.

    摘要翻译: 内燃机可选择地以均匀充气压缩点火(HCCI)模式与低起升进气和排气阀轮廓以及具有高提升进气和排气阀轮廓的火花点火(SI)模式之一进行操作。 从当前燃烧模式转换到期望的燃烧模式包括相位调节进气门和排气门中的一个,对于期望的燃烧模式中的给定相位调节,对于有效气缸容积具有更大的影响,基于期望的燃烧所需的相位 在升降之前调节进气门和排气门之一并调整进气门和排气门中的另一个。

    METHOD AND APPARATUS FOR CONTROLLING COMBUSTION NOISE IN AN INTERNAL COMBUSTION ENGINE
    4.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING COMBUSTION NOISE IN AN INTERNAL COMBUSTION ENGINE 有权
    用于控制内燃机中的燃烧噪声的方法和装置

    公开(公告)号:US20130080026A1

    公开(公告)日:2013-03-28

    申请号:US13245903

    申请日:2011-09-27

    IPC分类号: F02D13/02

    摘要: An internal combustion engine operates in a homogeneous-charge compression-ignition combustion mode. A method for controlling the internal combustion engine in response to a fast transient event from a low-load state to a high-load state includes operating the engine with a negative valve overlap between an intake valve and an exhaust valve, and determining a preferred combustion phasing responsive to the high-load state. A preferred EGR mass and a preferred intake valve timing corresponding to the preferred combustion phasing are determined A first intake valve timing is determined in response to a difference between the preferred EGR mass and an actual EGR mass. The intake valve timing is controlled in response to a difference between the preferred intake valve timing and the first intake valve timing.

    摘要翻译: 内燃机以均质充气压缩点火燃烧模式运转。 用于响应于从低负载状态到高负载状态的快速瞬变事件来控制内燃机的方法包括在进气门和排气阀之间以负气门重叠操作发动机,并且确定优选燃烧 响应高负载状态的定相。 确定对应于优选燃烧定相的优选EGR质量和优选进气门正时。响应于优选EGR质量和实际EGR质量之间的差来确定第一进气门正时。 响应于优选进气门正时和第一进气门正时之间的差来控制进气门正时。

    ADAPTIVE INTAKE OXYGEN ESTIMATION IN A DIESEL ENGINE
    6.
    发明申请
    ADAPTIVE INTAKE OXYGEN ESTIMATION IN A DIESEL ENGINE 有权
    柴油发动机自适应采集氧气估计

    公开(公告)号:US20110184632A1

    公开(公告)日:2011-07-28

    申请号:US12693613

    申请日:2010-01-26

    IPC分类号: F02D41/00 F02M25/07 G01M15/00

    摘要: A method for estimating an oxygen concentration in an intake manifold of a diesel engine utilizing exhaust gas recirculation includes monitoring engine operation, monitoring an exhaust gas recirculation valve, and monitoring an exhaust air fuel ratio. When the engine operates in steady state with the exhaust gas recirculation valve in the closed position, a volumetric efficiency for the engine is updated. A partial pressure due to exhaust gas recirculation within the intake manifold based upon the updated volumetric efficiency is determined, and an estimated oxygen concentration within the intake manifold based upon the partial pressure due to exhaust gas recirculation within the intake manifold and the exhaust air fuel ratio is determined Operation of the engine is controlled based upon the estimated oxygen concentration within the intake manifold.

    摘要翻译: 用于利用排气再循环来估计柴油发动机的进气歧管中的氧浓度的方法包括监测发动机运转,监测排气再循环阀以及监测排气空燃比。 当发动机在废气再循环阀处于关闭位置时处于稳定状态时,更新发动机的容积效率。 基于更新的容积效率确定由于进气歧管内的排气再循环引起的分压,并且基于由于进气歧管内的废气再循环引起的分压和排气空燃比,进气歧管内的估计氧浓度 基于进气歧管内的估计氧浓度来控制发动机的运转。

    METHOD AND APPARATUS TO MONITOR A MASS AIRFLOW METERING DEVICE IN AN INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    METHOD AND APPARATUS TO MONITOR A MASS AIRFLOW METERING DEVICE IN AN INTERNAL COMBUSTION ENGINE 有权
    在内燃机中监测大型气流计量装置的方法和装置

    公开(公告)号:US20110178693A1

    公开(公告)日:2011-07-21

    申请号:US12691056

    申请日:2010-01-21

    IPC分类号: F02D41/00

    摘要: A method for operating an internal combustion engine configured to operate in a controlled auto-ignition combustion mode and equipped with a mass airflow metering device includes monitoring an engine combustion state, monitoring states of engine operating parameters, calculating a nominal intake air mass flowrate corresponding to the states of the engine operating parameters, estimating an intake air mass flowrate corresponding to the nominal intake air mass flowrate and the engine combustion state, measuring intake air mass flowrate with the mass airflow metering device, comparing the estimated and measured intake air mass flowrates, and detecting a fault related to the mass airflow metering device when a difference between the estimated and measured intake air mass flowrates exceeds a predetermined threshold.

    摘要翻译: 一种用于操作内燃机的方法,其构造成在受控自动点火燃烧模式下操作并配备有质量气流计量装置,包括监测发动机燃烧状态,监测发动机运行参数的状态,计算对应于发动机运行参数的标称进气质量流量 发动机工作参数的状态,估计对应于标称进气质量流量和发动机燃烧状态的进气质量流量,用质量气流计量装置测量进气质量流量,比较估计和测量的进气质量流量, 并且当所述估计和测量的进气质量流量之间的差异超过预定阈值时,检测与所述质量空气流量计量装置相关的故障。