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    • 1. 发明授权
      US06850831B2 Method and system for estimating cylinder charge for internal combustion engines having variable valve timing 失效
    • Method and system for estimating cylinder charge for internal combustion engines having variable valve timing
    • 用于估计具有可变气门正时的内燃机的气缸充气量的方法和系统
    • US06850831B2
    • 2005-02-01
    • US10289591
    • 2002-11-07
    • Julia Helen Buckland , Ilya V. Kolmanovsky , Jing Sun , Joseph Scillieri
    • Julia Helen Buckland , Ilya V. Kolmanovsky , Jing Sun , Joseph Scillieri
    • F02D41/00 , F02D41/18 , F02M25/07 , G01M99/00 , G06G7/70 , G01M19/00
    • F02D41/0062 , F02D41/18 , F02D2041/001 , F02D2200/0402 , Y02T10/47
    • A method for determining cylinder air charge and/or cylinder burned gas for an internal combustion engine system. The engine system includes cylinders, each one of such cylinders having at least one intake valve and at least one exhaust valve in communication with such cylinder. The method determines one of a plurality of different scenarios, each one of the scenarios representing a geometrical relationship between opening and closing of the intake valve relative to closing of the exhaust valve. The cylinder air charge and/or cylinder burned gas is calculated in accordance with the determined one of the plurality of scenarios. In one embodiment, the engine system stores a plurality of different software modules. The method selects one of the plurality of software modules in accordance with the determined one of the plurality of scenarios. The cylinder air charge and/or cylinder burned gas calculation comprises executing the selected one of the modules. In one embodiment, a memory stores a relationship between volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle determined in accordance with each one of the plurality of scenarios for each of a plurality of different intake valve opening and exhaust valve closing conditions. The method includes: determining from the memory the volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle for the intake valve opening and exhaust valve closing conditions; and, determining from volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle the cylinder air charge and/or cylinder burned gas.
    • 一种用于确定用于内燃机系统的气缸充气和/或气缸燃烧气体的方法。 发动机系统包括气缸，这些气缸中的每一个具有至少一个进气阀和与该气缸连通的至少一个排气阀。 该方法确定多个不同场景中的一个，每个场景表示进气门相对于关闭排气门的打开和关闭之间的几何关系。 气缸充气和/或气缸燃烧气体根据所确定的多种场合中的一种进行计算。 在一个实施例中，发动机系统存储多个不同的软件模块。 该方法根据所确定的多个场景中的一个来选择多个软件模块中的一个。 气缸充气和/或气缸燃烧气体计算包括执行所选择的一个模块。 在一个实施例中，存储器存储在根据多个场景中的每一个所确定的循环期间，在发动机中的至少一个气缸的预定位置处，至少一个气缸中的残余气体占据的体积之间的关系， 多个不同的进气门打开和排气门关闭条件。 该方法包括：在进气门打开和排气门关闭条件的循环期间，从存储器中确定发动机中的至少一个气缸的预定位置处的至少一个气缸中的残余气体占据的体积; 并且在循环期间，在气缸充气和/或气缸燃烧气体的循环期间，确定发动机中的至少一个气缸的预定位置处的至少一个气缸中的残留气体的体积。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 2. 发明授权
      US06754575B2 Method and system for estimating cylinder charge for internal combustion engines having variable valve timing 失效
    • Method and system for estimating cylinder charge for internal combustion engines having variable valve timing
    • US06754575B2
    • 2004-06-22
    • US10289591
    • 2002-11-07
    • Julia Helen Buckland , Ilya V. Kolmanovsky , Jing Sun , Joseph Scillieri
    • Julia Helen Buckland , Ilya V. Kolmanovsky , Jing Sun , Joseph Scillieri
    • G06G770
    • F02D41/0062 , F02D41/18 , F02D2041/001 , F02D2200/0402 , Y02T10/47
    • A method for determining cylinder air charge and/or cylinder burned gas for an internal combustion engine system. The engine system includes cylinders, each one of such cylinders having at least one intake valve and at least one exhaust valve in communication with such cylinder. The method determines one of a plurality of different scenarios, each one of the scenarios representing a geometrical relationship between opening and closing of the intake valve relative to closing of the exhaust valve. The cylinder air charge and/or cylinder burned gas is calculated in accordance with the determined one of the plurality of scenarios. In one embodiment, the engine system stores a plurality of different software modules. The method selects one of the plurality of software modules in accordance with the determined one of the plurality of scenarios. The cylinder air charge and/or cylinder burned gas calculation comprises executing the selected one of the modules. In one embodiment, a memory stores a relationship between volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle determined in accordance with each one of the plurality of scenarios for each of a plurality of different intake valve opening and exhaust valve closing conditions. The method includes: determining from the memory the volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle for the intake valve opening and exhaust valve closing conditions; and, determining from volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle the cylinder air charge and/or cylinder burned gas.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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