Adaptive intake oxygen estimation in a diesel engine
    1.
    发明授权
    Adaptive intake oxygen estimation in a diesel engine 有权
    柴油机自适应进气氧气估计

    公开(公告)号:US08251049B2

    公开(公告)日:2012-08-28

    申请号:US12693613

    申请日:2010-01-26

    IPC分类号: F02D41/00 G06F19/00

    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 决心,决意,决定。 基于进气歧管内的估计氧浓度来控制发动机的操作。

    ADAPTIVE INTAKE OXYGEN ESTIMATION IN A DIESEL ENGINE
    2.
    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 of model-based multivariable control of EGR and boost for internal combustion engines
    4.
    发明授权
    Method of model-based multivariable control of EGR and boost for internal combustion engines 有权
    基于模型的内燃机EGR和增压多变量控制方法

    公开(公告)号:US08640679B2

    公开(公告)日:2014-02-04

    申请号:US12848188

    申请日:2010-08-01

    IPC分类号: F02B47/08 F02M25/07

    摘要: A method to control an exhaust gas recirculation and a manifold air pressure in an engine includes utilizing a decoupling matrix within a multiple input and multiple output controller to determine an exhaust gas recirculation command and a manifold air pressure command, wherein the decoupling matrix is configured based upon a diagonally dominant model of the engine compensated by the determined exhaust gas recirculation command and the manifold air pressure command. The exhaust gas recirculation and manifold air pressure are controlled based upon the determined exhaust gas recirculation command and the determined manifold air pressure command.

    摘要翻译: 用于控制发动机中的废气再循环和歧管空气压力的方法包括利用多输入和多输出控制器内的去耦矩阵来确定废气再循环命令和歧管空气压力命令,其中所述去耦矩阵基于 在通过确定的废气再循环命令和歧管空气压力指令补偿的发动机的对角线主导模型上。 废气再循环和歧管空气压力基于确定的废气再循环命令和确定的歧管空气压力命令来控制。